PAPER II (JUNE 1998) 1. For commercial annealing, cooling is done in a) furnance b) air c) mica d) both a & b 2. Cyniding of low carbon steel is quenched in a) oil b) brine c) water d) both a & b 3. How long piece of steel is left in a furnace for soaking a) for long enough to ensure a good even heat throughout b) for 2 hours for per cubic inch of piece c) one hour for each square inch of cross section area d) both a & c 4. Seak often forms on the surface of the metal and dirt blocked on it, cleaning of seaks and dirt from heat threated part is done by a) steel wire brush b) sand blasting c) scap d) all 5. In Rockwell hardness testing a) softer the piece of metal, the deeper will be the impression under given load b) the hardness is indicated on a dial gage graduated in the B & C scale c) for non-ferrous metal, the steel ball should be used and hardness no read on B scale d) all the above 6. Flame heating is done for a) when hardness is required only for a limited depth of the material b) for small part c) both a & b d) none 7. The heat of the furnace can be controlled or regulated by a) be watching the color of the furnace b) barometer c) thermo meter d) all 8. Fatigue crack is detected by a) ultrasonic b) radiography c) body current d) all 9. End of the steel bars are sometime painted in various a) color and color combination as a means of identifying the carbon constant b) strips identifying the alloy and solid color identifying the carbon 10. To prevent solder from running away from the surface to be jointed a) flux is used b) temperature is maintained c) clay is commonly used to surround the area to be jointed d) all 11. Braze welding is a) known as force welding (bronze welding) b) a welding in which base metal is not fuse c) a combination of brazing and welding d) all 12. Which statement is correct a) low temperature brazing is also known as hard soldering or silver soldering b) silver welding has equal strength of material c) after silver soldering, further heat treatment is required d) both a & b 13. Unit of radio active material is a) curies and ratherford scane b) barcol (bequerel) c) both a & b d) none 14. Radioactie decay is measured in terms of : a) curies b) half life c) both a & b - 1 -
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PAPER II (JUNE 1998)
1. For commercial annealing, cooling is done ina) furnanceb) airc) micad) both a & b
2. Cyniding of low carbon steel is quenched in a) oilb) brinec) waterd) both a & b
3. How long piece of steel is left in a furnace for soakinga) for long enough to ensure a good even heat
throughoutb) for 2 hours for per cubic inch of piecec) one hour for each square inch of cross
section aread) both a & c
4. Seak often forms on the surface of the metal and dirt blocked on it, cleaning of seaks and dirt from heat threated part is done by a) steel wire brushb) sand blastingc) scap d) all
5. In Rockwell hardness testinga) softer the piece of metal, the deeper will be
the impression under given loadb) the hardness is indicated on a dial gage
graduated in the B & C scalec) for non-ferrous metal, the steel ball should
be used and hardness no read on B scale d) all the above
6. Flame heating is done for a) when hardness is required only for a limited
depth of the materialb) for small partc) both a & bd) none
7. The heat of the furnace can be controlled or regulated by a) be watching the color of the furnaceb) barometerc) thermo meterd) all
8. Fatigue crack is detected by a) ultrasonicb) radiographyc) body currentd) all
9. End of the steel bars are sometime painted in variousa) color and color combination as a means of
identifying the carbon constant
b) strips identifying the alloy and solid color identifying the carbon
10. To prevent solder from running away from the surface to be jointed a) flux is usedb) temperature is maintainedc) clay is commonly used to surround the area
to be jointedd) all
11. Braze welding is a) known as force welding (bronze welding)b) a welding in which base metal is not fusec) a combination of brazing and weldingd) all
12. Which statement is correcta) low temperature brazing is also known as
hard soldering or silver solderingb) silver welding has equal strength of materialc) after silver soldering, further heat treatment
is requiredd) both a & b
13. Unit of radio active material is a) curies and ratherford scaneb) barcol (bequerel)c) both a & bd) none
14. Radioactie decay is measured in terms of :a) curiesb) half lifec) both a & bd) none
15. Which does not poses in electromagnetic radiationa) X-rayb) Lightc) Infrared rayd) Thermal
16. Density of radioactive mean is a) sharpness of image detail a radiograph b) degree of blackening of a radio graphc) relative brightness of two adjacent aread) both a & c
17. Welding decay in stainless steel is reduced by a) stainless steel containing titaniumb) low temperature c) by reducing heating timed) both a & b
18. The term used on worm geara) threat b) threat radiusc) threat diameterd) all
19. In flour sent method
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a) if wet developer is applied, it must be driedb) if dry developer is applied, it must not be
driedc) dry for long periodd) all are wrong
20. Telescoping gagea) is used for inside measurementb) range from ½” to 6”c) range from ½” to 1”d) both a & b
21. Hole gage is used for a) measuring grooves and slotsb) measuring small holec) both a & bd) none
22. The size of the flat cold chisel is determined by a) width of the cutting edgeb) length of the cutting edgec) length of chiseld) all
23. Which statement is correcta) straight fluted reamer is less tendency the
chatterb) spiral type are tapered for the short distance
back of end to and in startingc) bottoming reamer have tapers end and are
used to short holed) both a & b
24. Thread may be produced by a) on a leth with specially shaped cutting toolb) on spirel machine using rotary cutterc) by rolling on spiral machine using diesd) all
25. Needle file are a) knurid on both sideb) knurid on one side onlyc) use on slat by diameter and watch makerd) both a & c
26. Block spanner is used on a) round nut having series of knotches or slos
cuts on its sideb) hexagonal nut with slotsc) ??? nut with slotsd) all
27. Meshing gear have same a) teethb) pitch no. of some sizec) dedendom d) all
28. Vernier scale is used on a) microscope b) boroscopec) spheroscoped) all
29. Which statement is correct
a) fibre glass is weight more and have less strength than compare to other composite material
30. Fibre glass is a) also known as E-glass or electric glassb) E-glass or borosilicate glassc) Both a & bd) None
31. Welf threads are a) detection for the warp detection b) detection is 450 to warpc) biasd) perpendicular to warp
32. Which statement is correcta) force is exerted on charged particleb) force is applied on charged particle moving
along the magnetic field
33. Strength of composite depending upona) type of fiber (bonding material)b) process of manufacturec) heat treatmentd) all
34. When two sphere of same mass, one id +ve charged and other is –ve charged, then new mass will a) change b) unchanged
35. If the conductor is of 4 and it stretched to twice of its length, then its resistance is a) 1b) 8c) 12d) 16
36. A and B are big and small battery, having same emf. Internal resistance of battery A is a) less than Bb) greater than Bc) equal to Bd) unaffected
37. Which statement is correcta) battery terminal voltage is equal to battery
emfb) battery terminal voltage is less than battery
emfc) battery terminal voltage is more than
battery emfd) depends on direction of current flow
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PAPER – II FEBURARY 1999
1. Hammer shown in figure isi) Ball peen hammerii) Cross peen hammeriii) Claw hammeriv) Straight peen hammer
2. Figure shown isi) Torque wrenchii) Reversible ratchetiii) Spanneriv) Hook hammer
3. Normalizing is donei) to reduce the internal stresses set up after weldingii) to harden the metaliii) before welding
4. Choose the correct statementi) File without handle is called safe edge fileii) Single and double cut file give final finishiii) During filing lubricant must be usediv) File is made of carbon steel, hardened and tang is
remains soft
5. Bevel gear is used toi) Transmit motion at an angleii) Take heavier loadiii) Preside smooth operation in helical geariv) Transmit load between shaft parallel to each other spur
gear
6. Drive gear with 100 teeth operate at 120 RPM then driven gear of 50 teeth will rotate. If gdler gear of 60 teeth fitted between them
i) in opposite direction of 120 RPMii) in same direction at 120 RPMiii) in opposite direction at 240 RPMiv) in same direction at 240 RPM
7. MODEM (Modulator – demodulator) isi) A part of CPUii) Input output peripheraliii) A operating systemiv) A language software
8. Input device isi) Keyboardii) Mouseiii) Telephone lineiv) All
9. Transistor is used asi) Rectifierii) Voltage doubleriii) Amplifieriv) Voltage regulator
10. In Ni – Cd battery negative plate is made ofi) Spongy leadii) Pure cadmiumiii) Cadmium hydroxideiv) Nickel hydroxide
11. In lead acid battery electrolyte used as:i) diluted sulphuric acidii) concentrated sulphuric acidiii) potassium hydroxideiv) amonium chloride
12. Ohm’s law statesi) current x voltageii) voltage x currentiii) resistance x currentiv) voltage x resistance
13. Metal tubing is identified by wall thickness and ini) 1/16” of ODii) 1/32” of ODiii) 1/16” of IDiv) 1/32 of ID
14. Flexible hose is identified by:i) 1/16” of ODii) 1/32” of ODiii) 1/16” of IDiv) 1/32” of ID
15. End fitting should be used in ½“ metal tubing:i) AN 818–2ii) AN 818–4iii) AN 818–8iv) AN 818–16
16. Metal tubing used in landing gear and flap operation should be:
i) 2024 or 505ii) 3000iii) CRSiv) Steel hard
17. Normally grip length equal to:i) thickness of the metal to be joined.ii) Thickness of the metal to be joined + one complete
threadiii) Two times the dice of rivetiv) None of the above
18. Double phase is used for:i) High shear strengthii) Low shear strengthiii) Easy of formingiv) All of the above
19. In riveting edge distance (minimum) should be:i) 2 times the thickness of sheetii) 2 times the dia of steel shankiii) 2 times the head of rivetiv) 2 times the length of rivet
20. a
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PAPER – II JUNE 1999
1. The main memory of a computer isa. Ramb. Romc. Hard diskd. Micro processor
2. The binary equivalent of 55 isa. 10011b. 110001c. 100001d. 110011
3. 0.10 mm is equal to a. 0.039”b. 0.041”c. 0.035”d. 0.045”
4. T6 designation of al alloy indicatesa. Saln heat treated & then artificially agedb. Saln head treated & then stabilized – T7c. Artificially aged onlyd. Saln heat treated & then cold worked
5. The major alloying element in 7075 al-alloy isa. magnesiumb. siliconc. Mg & Sid. Zinc
6. The purpose of turnbuckle isa. to make minor adjustment in cable lengthb. to adjust cable tensionc. both are correct
7. A 7x19 cable is made up ofa. 7 strands of 19 wires eachb. 19 strands of 7 wires each
8. Which one of the following is boots self locking nut9. Identify the given tool
a. Adjustable plier
10. A double flare should be used on:a. Stainless steelb. Ni-steelc. Cast irond. Al-alloy only
11. Bead width of butt weld should bea. 2 to 3 Tb. 3 to 5 Tc. ¼ to ½ Td. 11/3 to 11/2 T
12. On a fillet weld the pinctration requirements ana. 60 to 80% of the thickness of the base metalb. 100% of the thickness of the base metalc. 200% of the thickness of the base metald. 25 to 50% of the thickness of the base metal
13. In the fluorescent penetrant inspectiona. the defect will show up as a brilliant yellow-greenb. the defect will show up as a light yellow-green
c. the sound area will appear whited. the defect will show up deep blue-violet
14. In jacking of a/ca. Main wheels are raised togetherb. Nose wheel is raised 6” above the groundc. Nose wheel hall which is raised for free movement of itd. None is correct
15. Centre drill is used toa. make hole & reaming in one operationb. make hole & counter sunk in one operationc. make tapper holed. all
16. For cast iron, the included any of drill isa. 118 degreeb. 70 degreec. 90 degreed. 140 degree
17. Select the correct statementa. hand taps are available in 2 setsb. bottoming tap is used to smoothen the bottom of a blunt
holec. plug tap is used at the lastd. taper tap is used first
18. The external threads on a bar is made bya. tapsb. stockc. diesd. reamer
19. The defect in wheel hub is inspected bya. Dye penetrant processb. Magnetic particle inspectionc. Eddy current testingd. Ultrasonic testing
20. The voltage rating of fully charged call of 20 Ni-cd battery is
a. 1.8 to 2.1Vb. 1.2 to 1.3Vc. 1.4 to 1.7Vd. 1.3 to 1.5V
21. If the temerature of a confined liquid is held constant & its pressure is tripled, the volume will
a. tripleb. be reduced to one – third its original value c. remain the samed. none
22. If the pitot head is blocked then which instrument will be affected
a. ASIb. Altimeterc. Turnd. Slip indicator
23. Which statement is correcta. QNH setting gives height above sea-level of the airportb. QNE setting gives airfield elevtion
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c. aFE setting makes the altimeter read zero on landing at a n aerodrame
d. all are correct
24. Through which material will magnetic lines of force pass the most readily
a. Copperb. Ironc. Al—d. All
25. Which symbol represents a variable resistera. 2b. 1c. 3d. all
26. With an ohmeter connected into the circuit as shown, what will the ohmmeter read
27. How can the state of charge of a Ni – cd battery be determined?
a. by measuring the sp. Gravity of the elistrilyteb. by a measured chargec. by the level of electrolyted. all
28. Which statement concerning the depicted logic gate is true:a. any input being 1 will produce 0 outputb. any input being 1 will produce 1 outputc. all input must be 1 to produce a 1 output
29. Zero fuel weight is thea. dry weight plus the wt. is full crew, pax & cargob. basic operating wt. without crew, fuel & cargoc. maximum permissible wt. of a loaded a/c includingd. maximum wt. of a/c with crew, oil, pax less fuel in wing
tank
30. The empty wt. of an a/c is determined bya. adding the net we. Of each weighing points &
multiplying the measure distance to the datorb. subtracting the tare wt. from the scale reading & adding
the wt. to each weighing pointc. multiplying the measured distance from each weighing
pt. to the datum times the sum of scale reading less the tare wt.
d. none
31. Unless otherwise specified, torque values for tightening a/c nuts & bolts relate to
a. clean dry threadb. clean, lightly oiled threadc. either dry or lightly oiled threadd. none
32. A fiber-type, self-locking nut must never be used on an a/c if the bolt is
a. under shear loadingb. under tension loadingc. under both shear & tension loadingd. subject to rotation
33. A/c bolts are usually manufactured with aa. class 1 fit for the threadsb. class 2 fit for the threads
c. class 3 fit for the threadsd. class 4 fit for the threads
34. Generally speaking, bolt grip length should bea. one & one-half times the thickness of the material
through which the extendb. equal to the thickness of the material through which
they extend plus approximately one diameterc. equal to the thickness of the material through which
the extendd. 2 times the dia
35. A particular component is attached to the a/c structure by the use of an a/c bolt & a castulated tension nut combination. If the cotter pin hole doesnot align, with the recommended torque range, the acceptable practice is
a. exceed the torque rangeb. lubricate the threaded section of the nut & bolt & torquec. change washers and try againd. change the nut.
36. How is a devis bolt used with andork-end cable erminal secured?
a. With a shear nut lightened to a snug fit, but with strain imposed on the fork & satefied with a cotter pin.
b. With a castle nut tightened until slight binding occurs between the fork & the fitting to which it is being attached
c. With a shear nut & cotter pin or a thin self locking nut tightened enough to present rotation of the bolt in the fork
d. None
37. A bolt with an X inside a triangle on the head is classified as a
a. standard a/c boltb. close tolerance boltc. CRS boltd. Special bolt
38. The measurement reading on the illustrated micrometer isa. 0.2851b. 0.2511c. 0.2901d. 0.2861
39. What does the micrometer reada. .2974b. .3004c. .3108d. .2998
40. What precision measuring tool is used for measuring cramkpin & main bearing journals for out or round was
a. dial gaugeb. micrometer caliperc. depth gauged. all
41. Which tool can be used to determine piston pin out of round wear?
a. dial guageb. micrometer caliperc. dial indicator
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d. vernier caliper
42. Metal tubing fluid lines are sized by wall thickness anda. outside dia in 1/16” incrementb. inside dia in 1/16” incrementc. outside dia in 1/32” incrementd. inside dia in 1/32” increment
43. Flexible hage used in a/c plumbing is classified in size according to the
a. outside diab. cross-sectional areac. inside diad. length
44. Which type of crack can be detected by magnetic particle inspection using either circular or longitudinal magnatize
a. 45 degreeb. longitudinalc. transversed. none
45. What defects will be detected by magnetizing a part using continuous longitudinal magnetization with a cable
a. defects to the longitudinal axis acrossb. defects parallel to the longitudinal axisc. defect parallel to the concentric circules of magnetic
force with in the partd. all
46. Which condition indicates a part has ealed to quickly after being welded?
a. cracking adjacent to the weldb. discolouration of bare metalc. gas pockets, porosity & slage inclusionsd. none
47. A mechanic has complete a bonded honey comb repair using the botted compound repair technique. What NDT is used to determine the soundness of the repair after the repair has cured?
a. eddy current testb. metalic ring heatc. ultrasonic testd. magnetic particle inspection
48. Fretting corrosion is most likely to occura. when two surfaces fit tightly together but can move
relative to one togetherb. only whe two dissimilar metals are in contactc. when two surfaces fit loosely together and can move
relative +ve anotherd. galvonic cells develop
49. A primary cause of intergranular corrosions isa. improper heat treatmentb. disimilar metal contactc. improper application of primaryd. none
50. Galvonic corrosion is likely to be most rapid & severa. the surface areaof the cathodic metal is smaller than
surface area of anodic metalb. the surface areas of the anodic & cathodic metals are
approximately the same
c. the surface area of the anodic metal is smaller than the surface are of the cathodic metal
d. none
51. Jet fuel identifiers area. performance no. to designate the valatility of the fuelb. performance no. & are relative to the fuel performance
in the a/c enginec. type no. with no relation to the fuel is performance in
the a/c engined. none
52. Brinell hardness testing is applicable toa. small part & high hardnessb. large part & small hardnessc. small part & small hardnessd. large part & large hardness
53. identify the given toola. indicating snap gaugeb. indicating thickness gaugec. indicating depth gauged. none
54. which one is incorrecta. ATA62 communicationb. ATA30 ice & rain protectionc. ATA52 doord. ATA78 engine exhaust
55. What will be the speed of given gear if speed of driver gear is
a. 60 rpmb. 120 rpmc. 100 rpmd. 240 rpm
56. Compound gear is used fora. better efficiencyb. better transmission of mc. greater range of speedd. all
57. Mg-alloy used with other metal should bea. given two coats of zinc chromate & a coat of pressed
vinylb. given one coat of zinc chromate & a coat of pressed
vinylc. given two coats of zinc chromate & two coat of press
vinyld. none
58. Colour of 100L fuel isa. died blueb. colour lessc. died greend. none
59. An automative type flaring tool will produce a flarea. 37 degreeb. 45 degreec. 60 degreed. 30 degree
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PAPER – II (OCT- 1999)
1. Generally speaking, ball grip length should bea) one and one half times the thickness of the material
through which they extendb) equal to the thickness of the material through which
they extend plus approximately one diameterc) equal to the thickness of the material through which
they extendd) twice the thickness of the material through which they
extend
2. Which of the following is not contained in type certificate date sheet
a) minimum fuel grade to be usedb) AD’Sc) Location of the datumd) Control surface adjustment
3. Refer the figure, what will the ohmmeter readfigure
a) 20 ohmb) 0 ohmc) 40 ohm
4. The numbering system ALPPHT-88 is fora) blind type lock boltb) pull type lock boltc) stump type lock boltd) none
5. The nut code number AN 320-10 meansa) 5/8 inch diameterb) 10 number of threads cutc) 5/16 inch diameterd) 5/32 inch grip length
6. N-Alloy 7075 containsa) 2.5 Mgb) 1.2 Mnc) 5.6 Znd) 2.5 Zn
7. Mark the correct statementa) T4 solution heat treatmentb) T5 solution heat treatmentc) T6 solution heat treatment + artificially agedd) Both a & c
8. Monel is____a) heat treatable and non-treatableb) non-heat treatablec) magneticd) as in (b) and weldable
9. Titanium is heat treated fora) relief of stresses set up during cold workingb) provide maximum durabilityc) thermal hardening to improve strengthd) all are correct
10. Which hardering heating (hardness) is best suitable for sleep and alloy
a) Brinell and Barcolb) Brinell and Rockwellc) Rockwell and barcold) Barcol (soft) and Rockwell
11. Flexible nose is sized bya) inside diameter with 1/16 increamentb) outside diameter with 1/16 increamentc) inside diameter with 1/22 increament
12. In Rockwell hardness testing, the minor preliminary load is applied
a) to securely lock the part in placeb) to make indentation in the partc) to get accuracy of the readilyd) all are correct
13. The color code of fuel line isa) redb) blackc) blued) yellow
14. Teflon nose is designed to meet the requirement ofa) higher operating temperature and pressureb) highly resistant to vibration and fatiguec) high operating strengthd) all are correct
15. If 28 volt current is passed through resistant of 10, the power consumed by that component is (P=V=V²/R)
a) 78.4 watt b) 780 wc)784 w d) 0.78w
16. Extension tap is used toa) cutting threads in deep holes & cutting the thread in
nutb) cutting threads in nutc) start the cutting of the threadsd) production and automatic tapping machine
17. Finished threads on bolt is checked bya) screw pitch gaugeb) ring thread gaugec) filler gaged) all
18. Broken tap in the hole is removed bya) tap extractorb) easy out screw extractor (for broken screw)c) by drilling on the top of tapd) none
19. If the rpm of the driver gear is 60, then the rpm of driven gear is
a) 120 rpmb) 100 rpmc) 60 rpmd) 30 rpm
20. Identify the figurea) bevel gearb) helical gearc) spur gear
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d) worm gear
21. Identify the figurea) glat drillb) straight fluited drillc) twist drilld) none
22. Identify the figurea) flared tublarb) plateless fittingc) head and stampd) imaged plumbing
23. Voltmeter is always connecteda) in series with the circuitb) in paralled with the circuitc) either in series or paralleld) none
24. Stump type lock bolt is driven with the help ofa) pneumatic pulling gunb) special driving toolc) pneumatic leveling hammer and bucking bard) all
25. Which hammer is used for rivetinga) ball pin hammerb) straight pin hammerc) cross pin hammerd) riveting hammer
26. Class-B fire includesa) fire in wood, paper, cloth etcb) fire in petroleum productc) fire in combustiable materiald) all are correct
27. For extinguishing fire in enginea) CO2 type extinguishing is usedb) Dry chemical extinguishant is usedc) Carbon tetra-chloride extinguishant is usedd) Halogenated type extinguishant is used
28. While jacking one wheel of an aircrafta) tripode-type jack is usedb) a/c should be raised 6” to 8” above the groundc) the remaining wheel should be chocked properlyd) all are correct
29. The function of the jack point is to a) ensure that the a/c load is properly distributed at the jack
pointb) prevent damage of the structure of the a/cc) both a & bd) none
30. Choose the correct statement regarding towinga) a/c equip with tail wheel and towed generally from
forwardb) nose wheel of a/c are generally towed from forwardc) nose wheel steering should be set to full steer positiond) all are correct
31. When hydraulic lock is detected in an engine then,a) propeller is pulled through in the opposite direction
b) spark plug is removed and propeller is rotated in opposite direction
c) spark plug is removed and propeller is turned in normal direction
d) none32. The voltage of an Ni at battery cell is
a) –b) –c) –d) –
33. Which of the following depicts deficiency is in cold welda) un sufficient heatb) rough and irregular appearancec) not feather into the base metald) all are correct
34. For fluorescent penetrant inspection, the diffect indicated bya) Brilliant yellow green for defect and deep blue violet
for sound surfaceb) Deep blue for defect and yellowish green for sound
surface c) Red for defect and white for sound surfaced) White for defect and red for sound surface
35. A transducer convertsa) electrical energy into mechanical energyb) mechanical energy into electrical energyc) chemical energy into electrical energyd) one form of energy into another (electrical) energy
36. Circular magnetization can detecta) lateral defectb) longitudinal defectc) transaction defectd) all
37. De-magnetization is carried-out bya) moving the part away from the alternating field of
solenoidb) deflecting the part to a magnetizing field continuously
inversing in direction and at the same time gradually decreasing the strength
c) passing the a.c. to the part and reduce the current to zerod) all are correct
38. In chrome-plating process, the crisis deposited on the part from
a) cathodeb) electrodec) electrolyted) tank
39. After tempering, the part is cooled ina) hot waterb) cold water rapidlyc) the rate of cooling from tempering temperature does
not effect on the reacting structured) spraying hot water
40. Round black bar is well inspected by which NDT a) radiographyb) eddy currentc) ultrasonic
41. The programmer step up the voltage in the ratio of 5:1 and secondary current is 0.20 amp, the primary ?????????
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42. What is the descriptive of the annealing process of steel during and after it has been annealed
a) Rapid cooling, high strengthb) Rapid cooling, low strengthc) Slow cooling, low strengthd) Slow cooling ( high strength) and increasing resistance
to wear
43. Clevis bolt is designed to takea) shear loadb) tensile loadc) external load d) all
44. The main control unit of computer in present isa) VDUb) CPUc) Key boardd) Hard disk
45. While testing for magnetic testing, it was found non-magnetic, in nitric acid it was found rapid action, greenish blue color, the material is
a) Ni-steelb) 18-8 steelc) moneld) CRS
46. Analogue computer isa) more correct than digital computerb) less accurate than digital computerc) equal to digital computerd) none
47. In computer, machine level language isa) high level languageb) low level languagec) very high level languaged) none
48. Decimal equivalent t binary no. 110 isa) 2b) 3c) 6d) 9
49. Al-alloys can be heat treateda) solution heat treatmentb) precipitation heat treatmentc) artificial aging indicated with W(T5)d) both a & b
50. In NDT, satisfactory performance of magnetic particle inspection cannot be find in
a) Cdb) Cuc) Sn & Znd) None
51. The transferring metal from one object to another by chemical and coating is done to protect the base metal from
a) Corrosionb) Wear
c) Increase the dimension to protect the base metal against chemical reaction
d) all
52. Improve tensile strength, ductility and sleck (shock) resistance of Mg-alloy casting are normally
a) Case hardenedb) rotation heat treatmentc) none
53. No. of threads can be checked bya) screw pitch gaugeb) thickness gaugec) radius gauged) all
54. A gear rack when mashed is sued to changea) rotary motion to reciprocating motionb) reciprocating motion to rotary motionc) transmit loadd) none
55. Convert 27 in binary no-a) 11111b) 10111c) 11011d) 11101
56. The magnitude of induced emf produced in a coil, when a magnet is inserted in it, does not depend upon
a) no. of turns in coilb) resistance of coilc) magnetic moment of magnet (magnetic strength)d) speed of rotation of magnet
57. Kewlar composite material has a) a bright grey colorb) less corrosion when in contact with N-alloy
58. Carbon graphitea) is same strong as kewlarb) is more stronger than kewlar (compressive strength)c) is more brittle than kewlard) none
59. Metal matrixa) used in a/cb) uncommonc) same as plastic matrix with fibre reinforcementd) none
60. A transfer is___a) amplify the low input signal to high output signalb) used as a rectifierc) used in transducer setd) both a & c are correct
61. Which is preferred in a/ca) TIG weldingb) MIG welding
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62. The tool shown isa) flap wrenchb) die stockc) none
63. Which Boolean’s algebra is not truea) A+B=B+A b) A.0=0 c) A.A=0 d) A.1=0
64. Which is sued as universal building block (gate)a) ANDb) NANDc) ORd) XOR
65. The weld is B (Double bevoled T-joint)a) V – butt weldb) U – butt weldc) Beveled butt weldd) T – butt weld
66. Brinnel hardness tester is used fora) larger part and low hardnessb) small part and low hardnessc) small part and large hardnessd) large part and high hardness
67. Barcol tester is useda) soft materialb) steelc) hard materiald) all
68. The ATA-100 specification no. for hydraulic, pneumatic, stabilizers and engine is
a) 55,36,29,77b) 36,29,55,77c) 29,36,55,77d) 29,36,77,55
69. The missing edge or planes are shown bya) dotted line b) dashed linec) hidden lined) all
70. In some large a/c, in the side of main L/G strut, there is a hydraulic jack
a) to jack-up the a/c when one wheel is to be raisedb) to serve the oleo shock strut when a/c is jacked upc) to jack up the aircraft completelyd) all are correct
71. The precision measuring tool, that is used for measuring crankshaft and main bearing journal for out of roundness and wear is
a) dial gageb) depth gagec) micrometer caliperd) vemier caliper
72. The dimensional inspection of a bearing in rocker arm can be accomplished by
a) depth gage and micrometerb) telescoping gage and micrometer
c) thickness gage and push fir arberd) none
73. The cracks adjust to weld is due to b) rapid cooling adjacent c) excessive O2d) excessive O2Hze) all are correct
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PAPER-II FEBURARY 2000
[WORKSHOP TECHNOLOGY]
1. Spur gear circular pitch means-a) distance from centre of one thread to the centre of
next consecutive tooth measured on the pitch circleb) imagining line passing through the points at which the
teeth of meshing gear contactsc) both (a) & (b) are correctd) none of the above is correct
2. Diametrical pitch of spur gear:a) represents the no. of teeth/inchb) diameter of the pitch circlec) both (a) & (b) are correctd) none of the above
3. If drill size is not written on the body of the drill then it can be obtained by:
a) drill sharpening gageb) it will be written on right-hand side of the drill shankc) it will be written on left-hand side of the drill shankd) none of the above is correct
4. In cross peen and straight peen hammer the peen end is:a) parallel and perpendicular to the handleb) perpendicular and parallel to the handlec) both parallel to the handled) both perpendicular to the handle
5. Figure of punch holder
6. No. of thread/inch is measured by:a) screw pitch gageb) ring gagec) plug gaged) all are correct
7. Metric micrometer graduation on steevea) 0.025b) 0.001c) 0.05d) 0.50
8. Buttress thread is used:a) where a thread requiring greater strength in one
directionb) where a thread requiring greater strength in both
directionsc) it is used for feed and lead screw on machine toolsd) none is correct
[ELECTRICITY]
9. Inductive reactance is measured in:a) henryb) faradc) ohmd) none
10. Overheating a circuit from excessive amount of current is protected by:
a) fuseb) circuit breaker
c) thermal protectord) all are correct
11. Battery cell voltage and current high in:a) series connectionb) series-parallel connectionc) parallel connectiond) all are wrong
12. Generator voltage depends on:a) strength of magnetic fieldb) speed of rotation of conductorc) no. of turns of conductord) only (a) & (b) are correct
13. State of charge of Ni-Cd battery will be determined by:a) measuring specific gravity of the electrolyteb) by a measured dischargec) by the temperature of the platesd) by the level of the electrolytes
[ELECTRONICS]
14. NPN transistor used as amplifier when:a) current flows from emitter to baseb) current flows from base to emitterc) current flows from base to collectord) current flows from collector to base
15. Advantage of tetrodes over triodesa) greater amplification for smaller input voltageb) less feedback from plate to the grid circuitc) both (a) & (b) are correctd) only (a) is correct
16. Figure shows:a) NOR gateb) OR gatec) Exclusive OR gated) None
17. In gate if a=0 and b=0 then c=1, and a=0 and b=1 then c=1, the gate is:
a) NAND gateb) AND gatec) NOR gated) OR gate
18. Convert number 36 to binary numbera) 100100b) 110010c) 100111d) 11100111
19. Convert binary 1000101 to number.
[HARDWARE]
20. Figure shows:a) reworked boltb) stretched steel boltc) close tolerance boltd) Al-alloy bolt
- 11 -
21. Self plugging (friction lock) rivets are replaced by:a) with the same size of solid rivetb) with the rivet one size largerc) can not be replaced by any oned) all are incorrect
22. Alloy steel lock bolts may be used to replace:a) hi-shear rivetb) solid steel rivetc) all bolts of same dia and head typed) all are correct
23. Fluid lines are identified by:a) colour codes and wordsb) colour codes and geometrical symbolsc) both (a) and (b) are correctd) only (b) is correct
24. Ring packing slight surface flows may be detected by:a) using 4-power magnifying glass with adequate lighting.b) By rolling the ring as inspection cane or dowel, the
inner dia surface can also be checked for small cracks.c) Slight scratching of the ring when it is rolled inside out
will help to reveal some defects not otherwise visibled) All are correct
[GENERAL MAINTENANCE]
25. Which is correct concerning jacking of an aircraft:a) tripod jack of appropriate size for the aircraft being
jacked should be replaced under the aircraft jacking points and perfectly centered to prevent them from cocking when the aircraft is raised.
b) At least three places or points are provided on aircraft for jacking purposes, sometimes fourth place is given to stablise the aircraft while it is being jacked at the other three points.
c) All are incorrectd) Both (a) and (b) are correct
26. Which is correct concerning mooring of an aircraft:a) small aircraft should be tie down after each flight to
preclude damage from sudden storms.b) Normal tie down procedure for heavy aircraft can be
accomplished with rope or cable tie downc) Both (a) and (b) are correctd) All are incorrect
27. ATA 24 is:a) communicationb) equipment/furnishingc) electrical powerd) auto flight
28. In ATA code wires and cable’s designation given:a) side by sideb) in suffix and prefix
[BASIC ENGINE]
29. Purpose of additives in fuel is:a) to prevent microbial growthb) for water detectionc) for detonation
d) all are correct
30. In four stroke engine ignition takes place in each cylinder after:
a) two complete revolution of crankshaftb) after 180º movement of crankshaftc) after only half rotation of crankshaftd) after four rotations of crankshaft
[INSTRUMENT]
31. Manifold pr gage shows the pr when it is not open:a) atmospheric prb) manifold pr
[METALLURGY]
32. Rockwell hardness tester measures thea) resistance to penetrationb) dia of penetrationc) both (a) & (b) are correctd) none of the above is correct
33. Titanium can be identified by:a) spark testb) moistening the titanium and using it to draw a line on a
piece of glassc) it will give a dark line similar in appearance to a pencil
markd) all are correct
34. In annealing the slow cooling will do:a) soften the steelb) increase the toughness of steelc) give greater strength of steeld) all are correct
35. If the soaking period of heat treated parts increases then:a) the part will start to reprecepctateb) grain structure will be finerc) both (a) & (b) are correctd) all are incorrect
36. Barcol tester is applicable for:a) Al-alloys and Copper, Brassb) Al-alloys, Mg-alloys and Copperc) Mg-alloy and Copperd) All are correct
37. Corrosion of Titanium is cleaned by:a) hand polish with Al-polish and mild abrassive paperb) using a stiff and hog bristle brushc) use of small power buffers and buffing compoundd) hand wire brush and steel wool
38. T36 means:a) alloy has been solution heat treated and has had its
thickness reduced by 6% by cold workingb) artificially aged onlyc) solution heat treated followed by strain hardeningd) solution heat treated followed by artificially aged
only
39. In soldering the flux is used:a) to remove and prevent oxidation the metal
- 12 -
b) allowing the solder to flow evenlyc) both (a) & (b) are correctd) (a) & (b) are correct and to unit more firmly with the
surface to be joined
40. In welding the welded parts are heat treated:a) to provide greater strength in welded regionb) to relieve the stress set up during weldingc) to make soften the welded partsd) all are incorrect
41. In overlap weld joint:a) flux used between the two partsb) flux is used on upper partsc) flux is used on the inner partsd) all are incorrect(not exactly, but like that)
42. In welding copper and brass the flame is used:a) slightly carbonizedb) neutral flame usedc) oxidized flame usedd) both (a) and (b) are correct
43. In welding Al-alloy the flux used is:a) potassium chlorideb) potassium fluoridec) potassium bisulphated) all are incorrect
44. In radio graphic inspection method:a) thicker the material, darker the impressionb) thinner the material, darker the impressionc) thicker the material, lighter the impressiond) thinner the material, lighter the impression
45. In dypenetrant inspection method the long or short crack will:
a) take longer time to be penetrateb) will take less to be penetrate
46. In fluorescent penetrant inspection the defect will appear:a) in green colour as seen in black lightb) will appear in deep blue-violet colourc) bright red indication will appeard) in ultraviolet colour
47. Defect in dye penetrant will be appear:a) brilliant yellow green colourb) bright red colourc) deep blue violet colourd) all are incorrect
48. Defects in the inner surface will be seen by:a) Boroscope’s methodb) Fiberooptic’s scope methodc) Indoscope methodd) All are correct
49. Factor include in radiographic exposurea) material thickness and densityb) type of defect to be inspectedc) type of X-ray machine used and (a) and (b) are correctd) only (a) and (b) are correct
50. Which are used as a filler material:a) boronb) cellusosic materialc) polyester resind) epoxy resin
51. Reinforcing fibera) When combined with the matrix, give primary strength
to the composite structure
52. Matrix materiala) it is a bonding materialb) it transfers the stress on composites to the reinforcing
fiberc) used as a adhesived) all are correct
- 13 -
JUNE – 2000
1. In 7075-0 indicatesa) annealedb) strain hardenedc) solution HTd) none
2. One r is dash on bolt head indicatesa) CRS boltb) NAS close tolerance boltc) AN standard boltd) None
3. The line used for reference of pars isa) reference lineb) hidden linec) phantom lined) black line
4. The colour of 6053 Al-alloy isa) redb) blackc) greyd) white
5. Lock bolt, which indicates flat head isa) ALPPb) ALPBc) ACSTd) ALSF
6. In flexible hoses slack is givena) 2 to 3% of total lengthb) 5 to 8 % of total lengthc) 3 to 9% of total lengthd) 10% of total length
7. When tightening of nut is precious, which tool is useda) allen wrenchb) torque wrenchc) spanner wrenchd) combination wrench
8. Which AL-alloy rivet has highest strengtha) 5056-Tb) 2117-Tc) 2024-Td) 5056-W
9. Al-alloy is not heat treated properly to have uniform grain boundaries it has
a) stress corrosionb) galvanic corrosionc) intergranular corrosiond) fretting corrosion
10. Which one is unpaireda) battery – accumulatorb) diode – NRVc) AC generator – vortex generatord) EMF – MMF
11. Which is used to transfer rivet size from template to new sheet is
a) centre punchb) pin punchc) alignment punchd) transfer punch
12. A side clearance between piston ring and cylinder wall is measured by
a) telescopic gaugeb) thickness gaugec) micrometerd) plug gauge
13. When base circuit is open at R, then a) bulb can not be turned offb) bulb can be turned offc) bulb can not be effectedd) high current will flow in circuit
14. The resistance of conductor depends ona) temperatureb) length and materialc) cross-sectional aread) all
15. In on inductive circuita) current lags behind voltage by 90b) current leads behind voltage by 90c) Current and voltage are in phased) None
16. In magnetic particle inspection, nickel plating does not give indication of
a) crackb) discontinuitiesc) corrosiond) none
17. In dye penetrant inspection, the defects under while light appers
a) blackb) greenc) red d) all
18. Which is unpaireda) dye penetrant – capillary acceptanceb) ultrasonic test – peizo electricityc) eddy current test – current acceptanced) magnetic test – skin test
19. Dye penetrant inspection is applicable toa) ferrous alloys onlyb) plastic and non metalc) non ferrous alloys metal d) all
20. In ultrasonic test, when mechanical stress vibration is applied to crystal quartz then these are
a) electrical energy and voltage are producedb) more vibrations are producedc) as in (A) and varies with the thickness of crystald) none
21. Form of corrosion which occurs between metal and non metal is
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a) filliform corrosionb) crevice corrosionc) exfoliation corrosiond) fretting corrosion
22. Normalizing is applicable toa) cu-alloysb) Al-alloysc) Ferrous alloy onlyd) Both a & b
23. Main content of 5056 Al-alloys isa) Zn b) Mg c) Cu d) Si
24. Freating the parts in anhydrour ammonia isa) carburizing b) nitridingc) cyanidingd) nor-malizing
25. For maximum elongation, ductility, tensile strength and impact resistance Mg-alloy is
a) solution heat treatmentb) castedc) precipitation heat treatmentd) none
26. Which one is not primary cella) Zn-carbon cellb) Lead acid cellc) Alkaline cell
27. Ni-cd battery is charged witha) constant current varying voltageb) constant voltage varying currentc) both (a) & (b)d) none
28. An ac circuit consists of inductance of 10, capacitance 4 & resistance 8 the impedance of the circuit is Z=R²+(XL-XC)a) 6 b) 10 c) 5.5 d) 8
29. Glider has lift due to a) high aspect ratio (s/c)b) high lift/co-efficient of lift (L/C) ratioc) symmetrical wingd) more wing area
30. In flight extending flapsa) increase liftb) increase lift and drag bothc) increase dragd) reduce stalling speed
31. Which has increasing order of strengtha) 2S, A14ST, 17ST, 24STb) 2S, 24ST, 17ST, A17STc) 2S, 17ST, 24STd) 2S, A17ST, 24ST, 17ST
32. Composite hasa) resistance to wearb) high strength to weight ratioc) resistance to corrosiond) all
33. The static vents with the flat surface plate at two position to a) minimize position errorb) have is formation freedomc) both a & bd) none
34. Heat treated defect in metal is detected bya) ultrasonic testb) eddy current testingc) dye penetrant testingd) radiography testing
35. An ac circuit has inductance 3 and resistance of 4, then impedance of the circuit isa) 3 b) 1 c) 5 d) 7
36. The maximum radius for bending of Al-alloy should be a) 3 times the sheet thickness b) 6 times the sheet thicknessc) 9 x sheet thicknessd) 10 x sheet thickness
37. The truth table is forA B Y0 0 00 1 11 0 11 1 0
A) OR-gateB) X – OR gateC) AND-gateD) NAND gate
38. Beryllium copper has greater advantage ofa) creepb) high strength and uniform propertiesc) corrosion resistanced) uniform grain structure
39. Mg is ________a) Susceptible to corrosionb) Has tendency to crackc) Resistance to corrosiond) Both a & b
40. For most metals, which oxy-acetylene flame is useda) neutral flameb) oxidizing flamec) carburizing flamed) none
41. Which one is heat treatable alloya) 24 Sb) clad 24 Sc) A17Sd) Any Al-cu alloy
42. Rack is mest with a gear, it is used to change (the purpose of rack and pinion is to change)
a) rotary motion to reciprocating motionb) reciprocating motion to rotary motion
- 15 -
c) both a & bd) none
43. Lift depends upona) velocity of relative windb) density of airc) wing span (area)d) all
44. Metal metrix composite is a recent conceptional material in which
a) resin is reinforced with metalb) resin and fibres are reinforced with metalc) fibres are reinforced with metal during molten staged) all are correct
45. In SAE-1030, carbon percentage isa) 30% b) 9.5% c) 10 % d) 30%
46. To roll a pure Al-sheet over Al-alloy is calleda) Al-cladb) Pure cladc) Laminated Ald) Both a & b
47. Magnetic particle inspection (MAP) can be done when flow is
a) at or near the surfaceb) on or in depth of surfacec) near or in depth of surfaced) all
48. Cd-plating is done on steel partsa) to prevent corrosion b) to built upc) to give tusture and brightnessd) all are correct
49. Heated-treated and non-heat treated metal 25, distinguished by
a) magnetic particle inspectionb) eddy current testc) dye penetrant inspectiond) ultrasonic test
50. Titanium is heat treated bya) normalizingb) full annealingc) case hardeningd) all
51. Maximum bending in case of copper tubing isa) three times to internal diameterb) six times to internal diameterc) nine times to internal diameterd) twelve times to internal diameter
52. Pickling of steel is carried out in a) H2SO4 b) Muriatic acid c) all d) done
53. Peizo electric effect isa) if mechanical stresses applied to a quartz crystal, then
voltage is induced
b) frequency depends on thicknessc) both a & b
54. Electroplating providesa) corrosion resistant surfaceb) wear resistant surfacec) both a & bd) none
55. Re-heating is done toa) remove strain and stressesb) remove effect of heat treatmentc) remove hardness and brittlenessd) none
56. In cable strand, the wires are performed to providea) corrosion resistanceb) flexibilityc) prevents from ravallingd) both a & b
- 16 -
OCT – 2000
1. The piston engine works ona) Boyle’s lawb) Brayton cyclec) Charle’s law & otto cycled) Both a & c
2. The mechanical efficiency of piston engine is determined bya) engine speedb) fuel usedc) mean effective pressured) mixture ratio (throttle setting)
3. The main alloying element is 7075 Al-alloy isa) Cu b) Mn c) Zn d) Si
4. The tubes are sized bya) inside diameter in increment of 1/16”b) inside diameter in increment of 1/32”c) out side diameter in increment of 1/16”d) out side diameter in increment of 1/32”
5. Flared tube fittings used in a/c are made ofa) Al-alloyb) Cuc) Steeld) All are correct
6. Muntz metal consists ofa) 60% of Cu and 40% of Znb) 60% of Zn and 40% of Cuc) as in (a) and basically brassd) as in (b) and basically brass
7. Steel has fine grain structure, whena) when heated above the critical temperatureb) when heated below the critical temperature
8. The soldering of Al-alloys differs from other metals due to a) high heat expansion and contractionb) greater heat inputc) uneven expansion and contractiond) all
9. Kirchoff’s law is applicable isa) d.c b) a.c. c) d.c. circuit having resistance d) ac & dc
10. In modulation, the available band isa) oneb) twoc) no bandd) many band
11. The modulation in which, amplitude is kept constant and frequency is changed is called
a) amplitude modulationb) space modulationc) frequency modulationd) phase modulation
12. The angle of attack is thea) acute angle between aircraft longitudinal axis and chord
line to which aerofoil is mounted on the aircraft
b) horizontal acute angle between the symmetry aircraft and wind direction from which it touches the aircraft
c) the acute angle between the summetry of the aircraft and the chord line of aerofoil section
d) all are correct
13. In NDT of material by Dye penetrant inspection (DPI) the volume of defect is interpreted by
a) Staining rateb) Staining speedc) Staining extentd) All
14. In UST, scanning is carried out by moving both probes simultaneously in opposite direction for
a) flash butt joint (weld)b) heavy forgingsc) heat treatment defectd) thickness measurement
15. During fuelling, the most necessary precaution to be observeda) grounding connection first made to aircraft and then
fuelling vehicleb) grounding connection first made to fuelling vehicle
and then the aircraftc) skillness of fuelling persond) all are correct
16. The fluid use for all types of aircraft engines except rocket is a) gasoline b) air c) ATFd) All are correct
17. In composites, the strength is provided bya) reinforced fibreb) core c) resind) (a) and fibre
18. In hardness testing of composite, the hardness is measureda) resinb) reinforcing fibrec) specific chartd) both a & c are correct
19. In composites, repair the part is steeped rather than to be scrafed for
a) uniform shear stressb) uniform tensile stressc) smoothnessd) both a & b
20. After honeycomb repair, the moisture entrapment is inspected by
a) radiographyb) ammeterc) laser holography d) all
21. In uniform fluid flow, the fluid is first made to flow through a tube and the pressure exerted by the fluid is measured by
a) dynamic pressureb) static pressure
- 17 -
c) reynold’s no.d) all
22. PARKETON is used for protection ofa) steelb) numiniumc) Mgd) As in (a) and cable
23. The rust and corrosion is removed from highly stressed steel parts by
a) abrasive paperb) fine buffling cloth on buffling wheelc) wire brushd) all
24. Centre drill is used to producea) short hole and CSK hole (countersunk)b) short hole and large holec) both a & bd) none
25. During repair procedure of composite part treatment is done for
a) small disbandsb) restore surface protectionc) seal honeycomb casting d) none
26. Synthetic rubber used in the aircraft is designated GRM asa) poly sulphide polymerb) isobutylenec) complex of butylenes and cresylonitriled) government rubber mono-vinyl acetylene or neoprene
27. The neutralize the surface of Ni-cad battery compartmenta) Boric acidb) Waterc) Backing sodad) All
28. Close tolerance bolt is identified bya) triangle marking on headb) crossed triangle marking on headc) circle marking on headd) triangle on head with plus marking within it
29. While jacking, the approved procedure isa) both wheels are raised togetherb) wheels are raised one after anotherc) –d) –
30. The class of fit required for a tight drive fit isa) class-1b) class-2c) class-3d) class-4
31. Piston engine’s mechanical efficiency differs due to a) difference of pressure b) difference of temperaturec) difference of grade of fuel usedd) difference in mass of fuel
32. A device which gives lateral control and is mounted at the opposite surface of wing
a) spoiler b) vertex generatorc) tabd) flap
33. The presence of water can be detected bya) USIb) DPIc) Endoscoped) Radiography
34. Aircraft bolts are generally manufactured with a a) Class – 1 fit for the threadsb) Class – 2 fit for the threads c) Class – 3 fit for the threadsd) Class – 4 fit for the threads
35. The nose of l00LL AVGAS dispenser isa) red b) bluec) blackd) green
36. Which is low energy logic circuita) TTLb) ECLc) Both a & bd) None
- 18 -
PAPER – II (FEB-2001)
1. Color code of 2024 Al-alloy tubing is:a) Whiteb) Greenc) Redd) Black
2. Head marking of corrosion resistance steel (CRS) bolt isa) Raised dash (single)b) Raised ring/dashc) Recessed triangled) No head marking
3. Rivet of ¼” diameter is replaced by:a) Two 1/16’ diameter rivetb) Three 1/16 dia rivetc) Three 1/32 dia rivetd) None four 1/16 dia rivet
4. Rivet can be removed by:a) Center punchb) Prick punchc) Pin punch (drift punch) drive or tapered punchd) Alignment punch
5. Head marking shows which bolt:a) CRSb) AN-standardc) Al-alloy (2024)d) Close tolerance
6. After welding part must be:a) Bardenedb) Normalizedc) Annealedd) Tempered
7. When material is forced through a die to take the shape of die, is called:a) Forgingb) Rollingc) Extrusiond) Casting (Mg)
8. All long extruded parts such as bar, tube, pipe etc. are stored:a) Horizontallyb) Horizontally with well supported along its lengthc) Vertically inclined at an angle of 60ºd) All
9. Bronze is Cu-alloy containing:a) Tinb) Zincc) Titaniumd) All
10. Lay lining in the fitting indicates:a) Size of the noseb) Types of the fluid to be usedc) Date of manufactured) To identification of co-axial junction
11. Stress corrosion occurs in:
a) Wing skinb) Compressed partc) Bolt holed) Tubing with tabbed thread fitted in cast alloy
12. In joined part, the opposition offered in crushing:a) Shear strengthb) Bending strengthc) Compression strength
13. The part which is dry and un lubricated, which of the following occurs:a) Erosionb) Abrasionc) Fettlersd) All
14. In radiography NDT, which of the following factor does not affect the test:a) Distance of film and exposure angleb) Timec) Material thickness, density, shape & sized) Film characteristic
15. Which of the following pin is used to take shear load:a) Taper pinb) Clevis pinc) Roll pind) Cotton pin
16. In pulse echo method, liquid coupling used for:a) Reduce a caustic attenuationb) Reduce a caustic mish match
17. The sketch giving the description of object made up of two or more parts:a) Detail drawingb) Assembly drawingc) Installing drawingd) None
18. Identify the bolt (CAIP-BL/2-3):a) 12 point ballb) 12 pint drilled boltc) 12 point extender washer bolt (cup washer locked)d) 1 double haxagon head bolt
19. Minimum bend radius of flexible hose depends upon:a) Type of the materialb) Size of the hosec) Working pressured) Both (a) & (c)
20. Regarding the plumbing of rigid tube, which is true:a) Less dia tubing required less distance supportb) Less dia tubing required more distance supportc) Large dia tubing required less distance supportd) Large dia tubing requires more distance support
21. Double flaring provides:a) Smoothnessb) More concentricc) Seals betterd) All
- 19 -
22. Combination of corrosion resistance steel (18-8 steel):a) 8% Ni and 18% chromiumb) 18% Ni & 8% chromiumc) 29% chromium & 8% nickeld) 8% chromium & 29% nickel
23. As per ATA-100 specification, the correct sequence of air conditioning, fuel, navigation and oil system is:a) 21, 28, 34, 79b) 21, 34, 28, 79c) 31, 34, 52, 80d) 32, 28, 34, 79
24. Find out the reading of metric micrometer:a) 5.46b) 5.64c) 0.564
25. Pitch of the micrometer is:a) 20 TPIb) 40 TPIc) 30 TPId) 50 TPI
26. Axial distance covered by a threaded fastener in one complete revolution is called:a) Pitchb) Leadc) Boltsd) None
27. Identify the figure:a) Typical extractor toolb) Tang break punchc) Inserting toold) None
28. In chisel, the shape of the cutting edge is grounded:a) Convexb) Convex to concentrate the shock at the center of the
cutting edge
29. In engineering drawing, the lines indicate the alternate position of parts or relative position of a missing part:a) Hidden lineb) Phantom line
30. Least count of micrometer is:a) 0.01 mmb) 0.001 mmc) 0.0001 mmd) 0.1 mm
31. What amount of load is acting on the bolt of extension bar is used on the torque wrench as shown in figure:a) 150 lbsb) 125 lbsc) 175 lbsd) 200 lbs
32. Magnetic flux depends upon:a) No. of turnsb) Rpmc) Rate of cutting of flux
d) All33. Inter granular corrosion is repaired by:
a) Cleaning the part and coating the zinc-chromate primarb) Replace the partc) Both (a) & (b)d) None
34. Fatigue crack occurs due to:a) Continuous reversal loadb) In new partsc) Both (a) & (b)d) None
35. Corrosion in a hole is removed by:a) Helicoil insersionb) Acres sleeve usedc) Scrap the partd) Drilling
36. To reduce the precipitation, the medium used is:a) Waterb) Airc) Oild) Brine
37. Vertical portion of the structure in aircraft is indicated by:a) Butt lineb) Water linec) Station lined) All
38. Electrolyte in Ni-cd battery:a) Takes no part in chemical reactionb) Serves as a conductor on –OH ionc) Both (a) & (b) are correct
39. (0.625)10 = ( )2
a) 0.110b) 0.101c) 0.011d) 0.100
40. (1010101)2 = ( )10
a) 110b) 85c) 75d) 95
41. Power factor in d.c. circuit is:a) Unityb) Infinitec) Zerod) None
42. Unit of electrical energy is:a) Kilowatt hourb) Ampearc) Watt hourd) All
43. Power can be calculated by:a) V2/Rb) I2Rc) V.I
- 20 -
d) All
44. Effect on the part by varying frequency in eddy current testing is:a) Skin effect
45. Which instrument is affected by position error:a) Altimeterb) ASIc) VSId) Both (a) & (c)
46. Pitot pressure is used in:a) Altimeterb) ASIc) VSId) All
47. Figure shows:a) I angle projectionb) II angle projectionc) III angle projectiond) Sectional projection
48. The heat conductivity of a metal depends upon:a) Heat treatmentb) Alloy in the materialc) Tensile strength/hardnessd) All are correct
49. VHF is used for:a) Short distance communicationb) In broad castingc) Long distance communicationd) Point to point microwave
50. Output is zero when input is 1 or both inputs are 1, the gate is:a) AND gateb) NAND gatec) NOR gated) OR gate
51. For given figure, which is correct:a) 0, 0, 1b) 1, 0, 1c) 1, 1, 0d) 1, 0, 0
52. Batteries are connect in series:a) Total current is equal to the sum of the individual
currentb) Total voltage is equal to the sum of the individual
voltagec) Both (a) & (b)d) None
53. When three individual resistance are connected in parallel to each other which of the following is correct:a) R = R1 + R2 + R3b) 1/R = 1/R1 + 1/R2 + 1/R3
- 21 -
PAPER – II (JUNE-2001)
1. Clevis pin used:a) With head up positionb) As in (a) & washer must be applied
under
2. Peel ply means:a) Prevent excess resistsb) Remove, after curec) Prevent vacuum bagging from stricking to
the paintd) All are correct
3. In magnetic and non-magnetic material, coating thickness of ferrous and non-ferrous alloy should be measured by:a) Eddy currentb) Magnetic particle testc) Micrometer caliperd) All
4. Which takes primary load:a) Fibreb) Metrixc) Both (a) & (b)d) None
5. Which takes in part of transferred load:a) Fibreb) Metrixc) Both (a) & (b)d) None
6. In case hardening nitriding process:a) With the part this heated ammonia gas is
circulated within the furnace chamber
7. T-series, Z-section and angles are formed by:a) Rollingb) Forgingc) Extrusiond) All
8. Hole must be inspected for cranks or burrs:a) Before reamingb) After reamingc) Before and after reamingd) None
9. When two surfaces fit tightly together, but can move relatively to one another:a) Fretting corrosionb) Intergranular corrosion
10. Unit of magnetic flux is:a) Webreb) Newton meterc) Both (a) & (b)d) None
11. Which statement is correct:a) Welded joint of thick material can not be
inspected by ultrasonic test
b) Thin sheet metal welds are more satisfactorily checked by X-rays
12. P.N. junction in transistor conducts in:a) Forward biasb) Reverse bias
13. Which fibre has higher compressive strength:a) Carbon fibreb) Ceramic
14. Mark the correct statement:a) Hot water quenching minimizes distortion
and alleviates crack
15. Galvanometer is transferred in ammeter:a) By connecting low resistance in series to the
galvanometerb) By connecting high resistance in series to
the galvanometerc) By connecting low resistance in parallel
to increase ranged) By connecting high resistance in parallel to
increase range
16. Mark the correct statement:a) Off set screw drivers are constructed
with both ends bent at 90º to the shankb) Rachet screw driver is used for heavy dutyc) Reed and prince screw driver is
interchangeable with Philips sod) All are correct
17. Where high temperature is used for brazing:a) For high power solderb) Special type of flux is usedc) Not used for brazingd) None
18. High heat of Al-sheet from fire causes:a) Increase ductilityb) Decrease ductilityc) Increase resistanced) None (increase, conductance)
19. In artificial aging hardening is done at:a) Moderate temperatureb) Room temperaturec) Critical temperatured) None
20. Overnight parking shall be done:a) Position the a/c in down wind directionb) Position the a/c in up wind directionc) As in (b) and light a/c must be tiedd) As in (c) and heavy a/c must be tied
21. In double start thread:a) Lead is equal to pitchb) Lead is 2 times of pitchc) Pitch is 2 times of leadd) None
22. Hacksaw blade length is measured:
- 22 -
a) Between center of end holesb) From the one end of blade to other end
23. Color of 2024-T Al-alloy is:a) Greyb) Greenc) Blue + yellowd) Red
24. In drawing which shows the position of part in relation to other is:a) Detail drawingb) Assembly drawingc) Installation drawingd) Sectioning drawing
25. The minimum distance between two clamps of a/c tube is:a) 16”b) 24”c) 8”d) 36”
- 23 -
Paper – II(OCT-2001)
1. Flare less tube fitting consists of following parts:a) Body, sleeve, flared tube and nutb) Body, sleeve and nutc) Sleeve, nut and end terminalsd) Sleeve, shoulder, beaded tube and nut
2. Color of fire extinguisher fluid line is:a) Yellowb) Brown or yellowc) Redd) Maroon
3. If two end terminals of PN junction is connected through a conducting wire than:a) A steady current flows from P-type to n-type
materialb) No steady current flows from wirec) Steady current flows from n-type material to
p-type material through wired) Any one of the above
4. A prime limitation with directly heated cathode is due to:a) Low frequencyb) Voltage fluctuationc) High frequencyd) Phase
5. Bottle jack is used for:a) Removing a wheel or complete single wheel
assembly form one landing gearb) Only removing brake unitc) Only removing single unitd) All of the above
6. During jacking the a/c outside the hanger:a) Face the a/c tail to wingb) Can be jacked in any directionc) Surface should be hard and leveld) None
7. Mark the correct statement:a) Straight flute reamer has a tendency to
reduce chatterb) Buttoning reamer is tapped at bottom for
starting aidc) Spiral flute reamer is tapped at bottom
for aid in startingd) None
8. In a PNP transistor application, a solid state device is turned on when the:a) Base is negative w.r.t. the emitterb) Base is positive w.r.t. the emitterc) Emitter is negative w.r.t. based) Any one of above
9. Where is an AN-clevis bolt used in an airplane:a) For tension and shear load conditionsb) Where external tension load are appliedc) Only for shear load applicationd) Only for taking radial loads
10. To detect a minute crank using dye penetrant inspection usually requires:a) That a developer is applied to flat surfaceb) A longer than normal penetrating timec) The surface to be highly polishedd) Do not require excessive surface preparation
11. CPCP refers to:a) Control processing of computer programmeb) Corrosion prevention and control
programmec) Corrosion prevention and cause detection
programmed) Corroded parts corrugation programme
12. Mark the correct statement:a) ATA – code 30 indicates, lightb) ATA – 61 code indicates propellerc) ATA – 29 indicates power plantd) All are correct
13. When capacitive reactance becomes equal to inductive reactance of a circuit it is called:a) Phase-inb) Phase-outc) Resonantd) Impedance matching
14. PFD in reference to NDT means:a) Ultrasonic flow detectionb) Dye penetrant inspectionc) Anodic detection inspectiond) Eddy current testing
15. When a lead-acid battery is charged by constant current method, then its full charge can be detected as:a) Three testing of electricity gives same
specific gravity valueb) Voltage stops risingc) Gassing will occurs rapidlyd) All above are wrong
16. What should be the first step of the procedure in sketching an a/c wing skin repair:a) Draw heavy guidenessb) May out the repairsc) Block in the viewsd) Draw extension lines
17. A cathode (election emitter) used in thermionic emission must have following characteristics:a) High matching pointb) High matching strengthc) Low work functiond) All above are correct
18. When bolts and rivets are used to joint the metal sheets, then both should be protected from corrosion by:a) Applying grease on bothb) By plating bolt and rivets
- 24 -
c) By painting bolt and rivetsd) They must be placed separately
approximately, 2-times than the thickness of the metal being joined
19. Denting in metal tube is acceptable if:a) Not more than 10% of tune diameterb) Less than 20% of tube diac) Not more than 40% of tube diad) Must be rejected if dent occurs
20. Primary control surfaces are:a) Elevator, rudder, aileron and leading edge
flapb) Elevator, rudder, aileron and trailing edge
flapc) Elevator, slots, spoiler and flapsd) Elevator, rudder and aileron
21. Crazing in plastics occurs due to:a) Manganeseb) Phosphorusc) Silicond) Sulphur
22. Mark the correct statement:a) Single needle pointed end scriber should be
sharp and surface should be checked for flatness with straight edge
b) Single needle pointed end scriber should be sharp
c) 90º bend, scriber should not be sued as far as possible
d) All of the above
23. If a line is divided into 25 division so that 25 divisions of this line is equal to 24 division of another line so that minimum distance that can be measured is equal to difference between the value of each division. It is the principle of:a) DTIb) Micrometerc) Vernier scaled) Rules
24. Magnesium surface should be cleared with:a) Stiff-hog bristleb) Steel woolc) Crocus clothd) Steel wire brush
25. Which of the following frequency is used for space propagation:a) 2 KHZb) 30 MHZ and abovec) Upto 30 MHZd) 20 KHZ — 200 MHZ
26. Fusible metals are used for tube bending has:a) Low melting point and ductileb) Hard and high melting pointc) Should expand on solidifyingd) Both (a) & (b) are correct
27. For very accurate readings during such calibrations the thimble may be viewed under a microscope of:a) Low magnificationb) Medium magnificationc) High magnification
28. When hydraulic fluid lines and electrical line is passing through same portion of a/c structure:a) Hoses should be fitted above the wires and
should be secured to a/c structure.b) Electrical wire should be fitted above
and to secure to a/c structurec) A minimum of 4-distance should be
maintained between two and any of two can be unstable above
d) Either of wire can be installed above and a minimum of
29. In straight and level flight:a) Lift = Drag & Thrust = Weightb) Lift = Thrust & Drag = Weightc) Lift = Weight & Drag = Thrustd) None of the above
30. Black smith anvil is made by:a) Machiningb) Forgingc) Extrusiond) Both (a) & (b)
31. Crevice corrosion caused due to:a) Metal and non-metal comes in contact and
oil is present between themb) Contact between metal and non metalc) Plastic and metal contactd) Due to improper heat treatment
32. Modern computer consists of:a) Hardwareb) Softwarec) CPU, input/outputd) ROM, software and logic gates
33. Fretting corrosion occurs due to:a) Stationary parts are subjected to
relative motion to each otherb) Direct contact with caustic liquid and battery
fumesc) Improper beat treatmentd) Combination of tensile stress and corrosive
environment
34. Amount of electron that can be stored on capacitor is proportional to:a) Both plate area and distance between themb) Plate area and does not depend upon
distance between themc) Plate area and inversely proportional to
distanced) Distance between plates and inversely
proportional to area
- 25 -
35. Resistance for a straight conductor does not depends upon:a) Lengthb) Shape of class sectionc) Temperatured) Material
36. Working voltage of capacitor should be:a) At least 20% higher than appliedb) At least 50% higher than appliedc) Equal to applied voltaged) Less than 50% than applied voltage
37. Mark the correct statement:a) Philips screw driver has sharp endb) Reed and prince screw driver has blunt endc) Reed and prince screw has larger area
in centerd) Both are interchangeable
38. For high speed a/c, it has wing:a) Thicker than low speed a/cb) Thinner than low speed a/c and thick
wing tipc) Equal to low speed a/cd) Any one of the above
39. Digital system of computer is working on:a) Decimalb) Binaryc) Hexagonald) Octagonal
40. Close tolerance bolts:a) Can be used in machined partsb) Corrosion resistance areac) Tight fit is permissiond) Both (a) & (b)
41. Mark the correct statement:a) Prick punch is used to mark center mark for
drilling purposeb) Center punch is used for removing binded
rivets, boltsc) Prick punch is used for making
reference marks on sheet metald) All are correct
42. If the thimble scale zero mark is above the zero mark of barrel mark in micrometer, it indicates:a) Positive errorb) Negative errorc) Zero errord) None
43. Mark the correct statement:a) Turbo jet engines require shorter runway
length than turbofan engineb) Turbo fan engines require lesser runway
length for take off than turbo jet enginec) Turbo jet engine produces more thrust than
turbo fand) Both (b) & (c) are correct
44. After welding of butt joint:a) Heat treatment is required as cold
working to be doneb) Heat treatment is not necessary as no cold
working is to be performedc) With torch heat, heating the welded area
only slightlyd) It is not necessary
45. Mark the correct statement in respect to fuelling:a) A/c can be grounded with carbon cabinb) Refueling van can be grounded with metal
chain discharge behind the vanc) Both a/c and van are kept at euqal potential
with a wired) All of the above
46. How many terminals can be taken out from stud:a) One terminal per studb) Two terminal per studc) Four terminal per studd) Any no. of terminals can be taken out from
one stud
47. While de-fuelling the sweep back wing a/c:a) Outboard wing fuel tanks should be
emptied firstb) Inboard wing fuel tanks should be emptied
firstc) Empennage fuel tanks should be emptied
firstd) Any one of the above
48. Mark the correct statement:a) Brinell hardness tester measure depth of
penetration and reading is directly indicated on dial
b) Bareel is sued for testing steelc) Rock wel tester measure dia of penetrationd) None of the above
49. Depth of screw thread is:a) Distance between root and creast
measured to axib) Distance between creast of one thread and creast of
adjacent threadc) Equal to line joining creast and rootd) None of the above
50. The ability to detect minute crack with radiography is called:a) Radiograph resolutionb) Radiograph sensitivityc) Radiograph processingd) Radiograph densitye) All
51. In plastics, minute crack occurring at weaker area due, to applied load and extends both sides:a) Crazing
- 26 -
b) Creepingc) Fatiguingd) Crevice corrosion
52. Turn buckle consists of:a) Brass barrel with left and right hand threadb) Stainless barrel with either left hand or right
hand threadc) Only cadinium plated steel barrel and end
fittingd) None of the above
53. In selecting rivets:a) No type, and size depends on shear
stressb) As in (a) and tensile strength and does not
depends on bearing strengthc) Rivet dia should be twice the thickness of
metal being joinedd) None of the above
54. If 1cm of main scale is divided in 20 equal division 24 division of main scale is divided in 25 equal division of vernier scale, least count is:a) 0.0002 cmb) 0.002 cmc) 0.2 cmd) 2.0 cm
55. Backlash in the gear can be measured by:a) D.T.I.b) Micro meterc) Thread gauge (filler gauge)d) Telescoping gauge
56. Nomex and kevlar are used for making composites as:a) They are used interchangeablyb) Both have some molecular sizec) Both have same internal structured) Both have same strength
57. Ballast is used for:a) Bringing the c.g. within c.g. pointsb) Leveling the lateral arm on central pointc) Both (a) & (b)d) None
58. Leveling of a/ca) Lateral leveling of H/A is more critical
than L/Ab) Jacking points are located on longitudinal
axisc) Leveling is always done on longitudinal axisd) Leveling of lateral point is always done on
longitudinal axis
59. Annealing is done on heat treatable parts to:a) Relief internal stresses set up during cold
workingb) As in (a) and harden the metalc) As in (a) and soften the metald) None of the above
60. A micro switch will close or open a circuit with the movement of:a) 1 or moreb) 1 or lessc) Both (a) & (b)d) None
61. Capacitance of a capacitor is directly proportional to:a) Plate area and distance between platesb) Plate area and inversely proportional to
distance between platesc) Distance between plates and inversely
proportional to plate aread) None
62.
- 27 -
Paper – II(JUNE-2002)
1. Color of the fire, protection fluid line is (FAA-9A,102)a) redb) brownc) greend) brown and orange
2. A/c bolts are manufactured with always (FAA-9A,122)a) class 1 fitb) class 2 fitc) class 3 fitd) class 4 fit
3. Which of the following precision instrument is used for tightening the nut on bolt with proper torque is (FAA-9A,138)a) socket wrenchb) torque wrenchc) ratchet wrench
4. For repairing the oversize hole with sleeve, the hole must be drilled oversized by (FAA-9A,138)a) 3/16b) 1/32c) 1/64d) 3/64
5. 7 x 19 size of cable indicates (FAA-9A)a) 7 wires of 19 strandb) 7 strand of 13 wirec) 7 strand of 19 strandd) none
6. Clevis bolt used in fork end of cable fittinga) AN-CRS boltsb) NAS-CRS bolts
7. Intergranular corrosion is normally caused by (9A,172)a) internal stressesb) improper heat treatmentc) electrolyted) all of the above
8. Spilled electrolyte of lead-acid battery is neutralized by a) ammoniab) baking sodac) vinegard) both a & b
9. What type of battery charger is recommended for final charging of a Ni-cad battery(9A,315)a) Constant current chargerb) Constant voltage chargerc) Both a & bd) Any one of the above
10. Corrosion product in magnesium is removed by (9A-179)a) steel wire brush
b) carborundum abrasivec) stiff hog bristle brush d) all of the
above
11. Purpose of heat treatment of titanium is a) thermal hardening to improve strength b) annealing for subsequent workingc) relieve stressesd) all of the above
12. The process capacity of a computer is determined by a) MHZb) KHZc) RAMd) Frequency
13. Hardness testing method of steel is (9A-220)a) brinell or barcolb) barcol or Rockwellc) brinell or Rockwelld) none
14. T6 indicates (9A-200)a) artificially aged onlyb) SHT and cold workedc) SHT and their artificially agedd) Solution heat treated
15. Mental fatigue of human is caused by a) long period of dutyb) emotional stressc) noise d) all of the above
16. A micro switch will open or close a circuit with the movement of (9A-319)a) 1/16 or lessb) 1/16 or morec) both d) none
17. Range of ammeter is extended by connecting a resistor with moving coil in (9A-324)a) parallelb) seriesc) any one of the aboved) none
18. Capacitance of a capacitor is directly proportional to (9A-346)a) plate area and distance is directly
proportional to b) plate area and inversely proportional to
distance between the platesc) distance between the plates and inversely
proportional to plate aread) both a & b
19. Calculate the power when E=28 volts and R=10 (9A-284)a) 78.4 wattsb) 7.84 wattsc) 2.8 watts
- 28 -
d) 280 watts20. If Z is impedance, r is internal resistance and R
is external resistance, then a) Z=R+rb) Z2=R2+r2c) Z=R2+r2d) None
21. Unit of radioactivity is a) Rutherford scaneb) Bequirelc) Both a & bd) None
22. Mark the correct statement (9A-541)a) straight fluted, reamer prevents chatteringb) spiral fluted reamer is tapered to aid in
starting c) bottoming reamer is tapered to aid in
startingd) none of the above
23. (110)2 is binary of decimal
a) 3 b) 5c) 6d) 7
24. Instrument panels are usually shock mounted to absorb ------ shocka) low frequency , high amplitudeb) high frequency, high amplitudec) low frequency, low amplituded) high frequency, low amplitude
25. Piston engine is depends on a) charle’s lawb) brayton cyclec) boyle’s lawd) both a & c
26. End of steel bar sometimes painted in various colors and color combination as a mean of identifying different grade of steel a) solid colors identify the alloy and strips
identify the carbon contentsb) strips identify the alloy and solid colors
identify the carbon contentc) both a & bd) none of the above
27. Which gage is used to measure the backlash between gears (Aviation Dictionary by M.Viswanathan)a) feeler gageb) screw pitch gagec) fillet gaged) DTI
28. Accuracy of a finished screw thread is determined by (Aviation Dictionary by M.Viswanathan)a) screw pitch gaugeb) ring thread gauge
c) thread gauged) plug thread gauge
29. Highest size of drill is (9A-540)a) No. 80 (0.0135)b) 3/16 (0.1875)c) 3.75 mm(0.1475)d) E (0.2500)
30. Schematic diagrams are used mainly for (9A-46)a) a/c maintenance and repairb) trouble shootingc) installation of partsd) all of the above
31. Mark the correct statement (Trigger)a) turboprop engine requires lengthy runway
than piston engine of same powerb) turbojet has more weight than piston engine
of same powerc) turbofan required short runway as
compare to turbojetd) all of the above
32. In towing the a/c (light) mark the correct statementa) all tail wheel a/c towing towards backwardb) all nose wheel a/c towing towards backwardc) if steerable nose wheel a/c, locking scissors
are set full swivel positiond) none of the above
33. While starting the piston engine, which type of fire extinguisher is permitted (9A-491)a) Water and water based agentb) CO2, 516 capacityc) Dry chemicald) CC14 (halton gas)
34. Which core material gives deflection in compositea) honey combb) synthetic resinc) foamd) all
35. Paralketone used on (Aviation Dictionary)a) cable b) ironc) conduit d) none
36. Interpretation analysis of defect in PFD indicatesa) extent of staining
37. In PFD, when used fluorescent, material color of defective part and sound part is a) brilliant yellow-green and blue violetb) brilliant yellow-green and bright redc) bright red and blue violetd) none of the above
38. ATA-100 code of hydraulic power, pneumatic fire and engine oil is (9A-466)
- 29 -
a) 36,26,79,83b) 39,36,26,78c) 29,36,26,79 d) 79,36,29,26
39. ATA-37 indicates (9A-466)a) vaccum / pressureb) water / wastec) pneumaticd) none of the above
40. Needle bearing is used where movement is (CAP BL 6/14)
a) oscillatory rather than rotaryb) rotary rather than oscillatoryc) both a & bd) none of the above
41. Embrittlement is steel is reduced by (9A-211)a) heating the steel at 1500 – 2000C
(tempering)b) increasing the carbon percentagec) by annealingd) none
42. Pressure of gas on acetylene welding is depend upona) area of welding surfaceb) type of material being weldedc) as the welder will wantd) none
43. Mark the correct statement regarding monel (9A-203)a) it can not hardened by heat treatmentb) it can be hardened by heat treatmentc) either a & bd) none
44. Mark the incorrect statementa) ultrasonic inspection ……………… piezo
electric effect (radiography)b) MPI……… skin effect (ultrasonic)c) Eddy current ………… current acceptanced) PED ………….. capillary action
45. If no marking of drill, identification of drill can be measured by drill gauge having a) fraction on right and no. on leftb) fraction on left and no on rightc) both a & bd) none of the above
46. Dia of rivet is (15A)a) 2 times of thickness of sheetsb) 3 times of thickness of thickest sheetc) 3 times of thickness of joint sheetsd) equal to grip length
47. Extension tap is used for a) cut full threads in blind hole to bottomb) cut the thread in deep holec) thread cuts on long shaftd) all of the above
48. Lift and drag depends upon
a) more cambered area of upper side and less of lower side of wing
b) more cambered area of lower side and less on upper side
c) both a & bd) none
49. Gear rack is used for (Shop theory c Anderson)a) change rotary motion to reciprocating
motion b) change reciprocating motion to rotary
motionc) transmit motion to parallel with itd) none of the above
50. Indentification of class B Fire Extinguisher is (9A-504)a) redb) yellowc) greend) brown
51. Color of extruded bar of aluminium alloy in 5 inches is a) red marking near the end of each length b) blue marking near the end of each lengthc) stamp of blue and white colord) none of the above
52. What size of the hole should be bored before cutting a 2.5” internal acme thread having 3 thread per incha) 2.5”b) 2.1667”c) 3.5”d) 2.75”
53. Mark the correct statementa) light a/c is tied down after every flightb) light a/c is not require tied downc) only when strong air being to flow then tie
downd) both a & c
54. Dis-integrator is used to b) making hole in conductive metalc) making hole in non-conductive jobd) making hole clearly and fairlye) both a & c are correc
- 30 -
PAPER-II (OCT-2002)
1. Ohm’s law does not holds for:a) Diodeb) Mercuryc) P – N emulsiond) Both (a) & (c)
2. Speed of motor increases, when load decreases, current decreases because of:a) Frictional loss b/w motor moving partsb) Frictional loss b/w field winding and other partsc) Induced back emf increasesd) None
3. During inspection after swaging if it is found that:a) Shank dia is too large that means it is over swagedb) Shank dia is too small that means it is over swaged it
should be rejectedc) Shank dia too small it means under swagedd) Shank dia is too large it means under swaged and it
should be rejected
4. Flab tab is:a) Balance tabb) Trim tabc) Servo tabd) None
5. Geiger counter is used:a) To check the condition of a/c after heave landingb) To check the condition of a/c after flight through
turbulencec) To check penetration of a/c by ultraviolet raysd) None
6. Lift depends on:a) Wing areab) Wing shapec) Square of velocity and density of aird) All of above
7. Mark the correct statements:a) Lateral leveling in heavy airplane is more criticalb) Leveling lateral point always on longitudinal axisc) Leveling is always done in longitudinal axisd) None
8. Which of the epoxy resin is fire resistant:a) DGEBAb) Flexiblec) Halogenatedd) Cyclo aliphatic
9. Marking of fluid line is given by:a) Color and geometrical shapeb) Show the function and direction of fluid flowc) Color and wordsd) All of the above
10. Mark the correct statement:a) Carbon graphite has more compressive strengthb) Kevlar graphite has more compressive strengthc) Carbon graphite less more tensile strength than Kevlard) Carbon graphite has low compressive strength
11. Identify the figure:a) Lead & zincb) Rubber
12. Stress corrosion is likely to occur it:a) Alb) Mgc) Stainless steeld) Al & Stainless steel
13. Counter sinking is the operation of:a) Producing an angular surface at the end of holeb) Made in many diameter sizes and anglesc) Making screws and bolt to flush with the surfaced) All
14. Shear nut thickness depends on:a) As per the dia of nutb) Hall of the usual nutc) As per the location of nutd) None
15. When re-torquing is required for a nut:a) Relightened the nut w/o backing off the nutb) Relighten the nut with backing of one turn of nutc) Relighten the nut with backing of two turn of nutd) Never re tighten the nut
16. Which fire extinguisher is best for electrical fires:a) Waterb) CO2
c) Foamd) All
17. In a transformer is primary frequency changes from 50Hz, keep the pick voltage constant then frequency:a) Increases in secondary by ratio 60/50b) Decreases in secondary by ration 50/60c) Both (a) & (b)d) None
18. While riveting hole center can be marked by:a) Center punchb) Templatec) Hole finderd) All
19. When in a/c is required, embossing, etching and marking then electrical etching done by:a) Electrical etching pencil if applied lightlyb) Electrical etching pencil but only for CRSc) Electrical etching pencil is prohibited in a/cd) Both (b) & (c)
20. No. of threads per inch can be checked by:a) Scaleb) Screw pitch gagec) Center gaged) All
21. In oxy-acetylene welding to extinguish the flame:a) First close O2 then acetyleneb) First close acetylene than O2
c) Close both at a timed) None
- 31 -
22. Hydrogen gas emits in the battery:a) During all fame in lead acid battery servicingb) In Ni-Cad battery at the end of chargingc) When battery is overchargedd) Both (a) & (b)
23. When coil of wire is placed horizontal to the earth surface, and a bar magnet dropped from the top:a) Fall with acceleration equal to ‘g’b) Fall with acceleration less than ‘g’
24. For reaming hole should be undersized:a) ‘200’ to ‘500’ undersizedb) ‘003’ to ‘0074’ undersizedc) Undersizedd) None
25. In ATA-100 specification of cable, electrical wire are designated by:a) As prefix and suffixb) At the endc) In the middled) None
26. (1010101)2:a) (85)10
b) (58)10
c) (64)10
d) None
27. Die is made used for:a) Cutting internal threadsb) Cutting external threadsc) As in (b), made of steel, hardened and temperedd) As in (a) and made of steel
28. In fluorescent insp. Defect show as:a) Green in black lightb) Red stainc) Green in white lightd) Blue
29. X-ray equipments are rated by:a) Currentb) Voltagec) Powerd) None
30. If size is not marked on drill:a) It can be find by sharpening drill gageb) By center gagec) Found by drill size gage-no. of left, fraction on rightd) Found by drill size gage-no. of right, fraction left
31. Every third tooth of Hacksaw is made straight:a) For sawing clearanceb) Rakerc) Repsawd) None
32. Cotter pin for castellected nut is made of:a) Steelb) Cadmium plated low carbon steelc) Stainless steeld) Carbon steel
33. Vent plug of Bi-Cad battery should be cleaned by:a) De–mineralized waterb) Distilled waterc) Warm water and distilled waterd) Detergent
34. To improve tensile strength, durability, shock resistance Mg. casting are normally:a) SHTb) PHTc) Annealingd) None
35. A magnetic force always exert on:a) A charged particleb) A uncharged particlec) Charged particle parallel to magnetic flux
36. Grub screw is used for:a) For locking threaded fastenersb) By solderingc) By peeningd) All
37. Bearing strength is the force resist the:a) Stretching & lengtheningb) Slidingc) All the point of tearingd) None
38. In square thread:a) Depth & width and space is equalb) Strongc) All
39. O–ring can be checked by:a) 4 X magnificationb) By rolling the ring on a dowel-inner dia, can be checkedc) By rolling the ring on insp. Cone inner dia can be
checkedd) All
40. Metalizing is the process of:a) Rolling pure Al, layer on Al, alloy surfaceb) Ni, and cad plating on steelc) By spraying Ni, Cad, on steel with oxy-accetylene
torchd) All
41. Hollow propeller thickness can be checked by:a) Eddy current insp.b) Eddy current by opening itc) UFD and can be also detect detaminationd) None
42. Eddy current inspection is a:a) Insp. for sub surface defects onlyb) Insp. for surface defects onlyc) Insp. by comparative testd) Open defectse) (a) (b) & (c) are correct
43. Which of the following are universal gate:a) NAND & ANDb) NOR & OR
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c) NAND & NORd) None
44. Combination set can be used as:a) Vernier caliperb) Depth gauge, height gage, normal trisqure & scriberc) Micrometerd) All
45. What is the speed ‘B’ gear:a) 200 rpmb) 600 rpmc) 300 rpmd) 166.3 rpm
46. When a component exceed the alert value:a) It should be rejected before the flightb) It should continue in flightc) It can replace in flight or 10 hrs which is earlierd) None
47. Mark the correct statement:a) Brinell hardness is the dia of ballb) Lesser the rock well No. softer the materialc) More the Rockwell No. softer the materiald) None
48. Mark the correct statement:a) Thrust bearing can take radial loadb) Radial bearing are used in gears, shaft etcc) Roller bearing can take less radial loadd) All
49. Alert value for a component:a) Recalculated at every 3 yearsb) Recalculated at every 1 monthc) Recalculated if it found unreliabled) (a) in 3 & it should be less than original alert value
50. When the time b/w soaking and quenching increases:a) Hardness increasesb) Softer the materialc) Repetition
51. In 1 to ten major data, the structure control of comp:a) Sequenceb) Selectionc) (a) & repetitiond) (b) & repetition
52. In P.N.P. transistor holes diffuse from pregion to N regionable of:a) Higher level of energyb) Thrillisionc) Higher concentration of holes in pregiond) None
53. Chemically transfer of metal from one to another is done to:a) Corrosion resistanceb) Build upc) Resistance to tarnishd) All
54. Mark the correct statement:a) Tubing size and specification stamped on it
b) Small tubing by color code and markingc) Both (a) & (b)d) None
55. ANI2115 – indicates:a) Dia 3/5 and head is not drilledb) Dia 6/8 and head is not drilledc) Dia 6/8 and head is drilledd) Dia 6/8 head and shank is drilled
56. Engine tires once in:a) One Rev. of crankshaftb) Two Re. of crankshaftc) 360º Rev. of crankshaftd) None of the above
57. Mark the correct statement:a) The thickness of the laminate and depth of discontinuity
does not impose any problem in ‘C’ scan methodb) The pulse feathers of acoustic emission is analyzed to
detect microscopic defect in acoustic emission method
c) Thermoscopy is most difficult method since it require material with high thermal conductivity
d) All of the above
58. Mark the correct statement:a) On a/c with a steer able nose wheel, the locking scissors
are set to full swivel for towingb) Tail wheel a/c should always towed backwardc) Release all the hydraulic charge before towingd) All of the above
59.
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Paper II (Feb 03)
1. In digital multimeter, setting is a) lowb) shunt is usedc) zerod) changes according to range of switch
2. To increase range of ohm-meter to measure high voltage and resistance to be a) low b) high c) constantd) balance with deflection of probes
3. Advantages of A.C. over D.C. for use on long R-range transmission is a) safe and easy to generateb) it is easy to rectify A.C.c) thinners conductors are usedd) all above are correct
4. In capacitor charging, if key is open and if distance R between plates is increased , thena) capacitance decreasesb) Capacitance increasesc) P.D. increasesd) P.D. decreases & stored
5. E.M.F. induced in the generator is a) Lenz’s lawb) Electromagnetic inductionc) Flemings right hand ruled) Kirchoff’s low
6. Oil temp. measured with a) thermistorsb) thermocouplec) diodesd) temp. indicator
7. MTCSa) Zener diode used for as amplifierb) High freq. ckts, storage memory used for
voltage regulatorc) As in b and as an oscillatord) Varactor diode is used for skitching
circuit & electronic tunner
8. Conversion of (4D)16 to binary
9. Conversion of (37)10 to binary
10. Modem is a) Modulator / Demodulatorb) Software programmec) Operating deviced) Input . output
11. Pilot hole to be drilled in plexig lass , bit used a) ordinary drill bit can usedb) specially designed drill bit should usedc) twist drill to be used
d) wood bit can be used
12. Filler material added to resin(Aviation Dictionary)a) to increase pat lifeb) to improve viscosity & weightc) increases strengthd) all of the above
13. Drift induced anglea) 30 b) 45c) 60d) 90
14. M.T.C.S.a) cold quenching minimize distortion & cracksb) hot water quenching minimize
distortion & alleviates cracksc) spray quenching reduces the wear and
corrosiond) quenching process not haise considerable
effects
15. Heat treatment of Al-alloys and after it allowed to cool for 4 to 5 days is (9A)a) natural ageingb) artificial ageingc) a & bd) room temp of alloys
16. In series of drill size, most accurate drill is (9A,539)a) A to Zb) Fractional seriesc) No. 80 to No. 1d) Any one above
17. What size of hole to be drilled, brown sharp worm thread have 2TPI, (major diameter=3in)a) 2.3134b) 2.3144c) 2.3212d) 1.564
18. Most important factor which affects the indication of dye-penetrant inspection check is a) not proper application of Dyeb) not proper application of penetrantc) parts are not thoroughly degaussed &
cleanedd) all of the above
19. Hooks panner used for (Shop theory,50)a) round nuts and having notches on outer
edgeb) square nuts and having at hole an outer
peripheryc) hexagonal nuts having holesd) none of above
20. In hardness testing, barcol tester used for (9A-220)a) stainless steel
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b) magnesiumc) Cu & Brass & Al alloyd) Hard materials
21. Which of the following is primary cella) lead acidb) silver zinkc) carbon zinkd) nikel cadmium
22. Negative plate of Ni-Cd battery is (9A-313)a) Kott, hydroxideb) Cadmium sulphatec) Cadmium hydroxided) Nickel chloride
23. Which of the following is incorrecta) wings slanted with lateral axis is dihedral
angleb) chord of the wing to relative kind is called
angle of attackc) longitudinal axis of a/c & chord of aerofoil is
angle of incidenced) angle of attack is angle between chord
& speed of a/c
24. Wing aspect ratio is a) wing span / average chord b) b2 / area / s c) b2/area2
d) all of the above
25. Rubber hose are identified by a) inside diab) outside diac) outside dia and its lengthd) its size and dia
26. AN steel flared tube end fittings a) Blackb) Redc) Brownd) Blue
27. Double flared end fittings is for a) ease of constructionb) to resist shearing effect imparted on
tubesc) to resist for concentric on the tube flaresd) to take and withstand shock load on tubes
28. Taper pin used for (9A-145)a) shear loadb) for good play between jointsc) for flexibilityd) good rigidity and slackness
29. In treatment on metals, metallising is the process(9A-132)a) Anodizing of the surface to protectb) Layer of pure Al on steelc) Al, Cu, Zn sprayed from pistol on the
metal surfacesd) All of the above
30. Flap tab is a) servo tabb) balance tabc) trim tabd) none of the above
31. Removal of excess dye in water washable type is by a) spraying of water jet directly by wiping with
clean ragsb) cleaned with wet cloth onec) dye penetrant process involvesd) elapsed , if surface dye is to be removed by
water wash operation
32. Crinckle washer used for (CAIP)a) where continuous vibrational loadb) lightly load application and for
electrical use c) where wear of metals is the factor
33. MCS, related to ATA 100 code(9A-468)a) No. 30, is lightb) No. 33, is hydraulicc) NO. 61, propellerd) a and c
34. Which is important factor related to fuel jettison of a/c(9A-94)a) fuelling accomplished at the end through of
wing tipb) fuelling accomplished at outer board of wing
sidec) fuelling jettison should be
accomplished within 10 Minutesd) make precaution that there is no fire hazard
35. Important consideration regarding pressure fuelling of a/c (9A-500)a) minimizes the time required for fuellingb) keeps the a/c weight within limitc) minimizes the chances of fuel
contaminationd) reduces the chances of radio hazard
36. Pressure fuelling method, important precaution should be takena) the pump pressure must be minimumb) the pump pressure should be correctc) the a/c elect. System must indicate the
gauge readingsd) the a/c should be grounded
37. Pr. Fuelling also known as a) single point or underwing welling
38. MCS related to thickness of sheets (CAR)a) No. 1 SWG is smaller than 9 no SWGb) Thickness of 18 SWG is smaller than 16 SWGc) Thickness of 14 SWG is more than
is18SWGd) Thickness of 18 SWG is smaller than 14 SWG
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39. Fuel designation above grade-100 is (9A)a) it is iso-heptane rating in fuelb) by performance numberc) its performance numbers
40. MCS related to bearingsa) bearing should stored horizontally &
reprotected once in a yearb) slight corrosion on outer race of bearing is
allowedc) shielded bearings should be inspected for
corrosiond) all are correct
41. MCS (9A-25)a) roller bearings takes thrust load b) radial bearings are used for shaft gears etcc) ball bearings withstand heavy radial loadsd) all above correct
42. While demagnetize the partsa) by passing sufficient A.C. into the fieldb) by passing a.c. slowly out to the
magnetic fieldc) by repeatedly apply a.c. over the partd) increasing the strength of magnet then
cutout a.c
43. Repair of the crack in the weld is done by a) butt weldb) edge jointc) lap jointd) rosselte weld
44. Blacksmith anvil is made up by a) casting and machiningb) extrusionc) forgingd) b & c
45. For soft metals, drill angle is (9A-339)a) angle may increasedb) angle may decreasec) angle will be more than the normald) angle is more or less
46. The hole-drilled have rough surface causesa) the drill kill be dullb) the drill speed is slow as large heat
producedc) the drill speed is higherd) a & b
47. Plain washers are used for (9A-131)a) for grippingb) for torquingc) for insertion of cotter pin in holed) all are incorrect
48. MCS (9A-171)a) corrosion on Al, have etching and pittingb) corrosion on Cu, have greenish filmc) corrosion on Mg, have etching and pitting
d) all are correct
49. Which is correct for the Airspeed Indicator.a) pilot pressure fed to the interior of capsuleb) static pressure fed directly to outside of the
capsulec) pilot & static pressure difference directly
measured on the gauged) all above correct
50. Smallest reading of micrometer is viewed with a) low magnificationb) high magnificationc) high or low magnificationd) high or low magnificatione) can easily readable
51. Undoubtfully wrought alloys a) cylinder headb) crank shaftc) cam headd) Al clad sheet
52. Mark correct statement, at time of fuelling of a/ca) Aircraft should be grounded through lines by
carbon embedded in timeb) Drag chain connected to fuel truckc) Bonding is connected between a/c, fuel truck
& to the fuel filter d) All of the above
53. Dies are used for a) cut external threads b) made up of hard tempered steel & ground to
exact sizec) a & b are correctd) to cut internal threads
54. MCSa) QNF, atmospheric pressure reads zerob) QNH, barometric pressure above
elevation at mean sea level.c) QNE, barometric pressure at altituded) b & c are correct
55. Schematic diagram (9A-46)a) Individual component do not locate in
the a/cb) Individual component to locate in the systemc) Do not locate component in the system are
use to locate parts & assembles of parts to installation in a/c
56. Tolerance is a) permissible variation in the mating partsb) variation of dimensionsc) difference between upper & lower
dimensionsd) it is clearance between the hole and bolt
57. Fretting corrosiona) between skin & rivet around a holeb) slack pits of depositsc) a & b are correct
- 36 -
d) it is not visible around the cracks & holes
58. Quality and quantity of X-rays is a) intensity and penetrating powerb) frequency and intensityc) there is no quality but intensity is thered) brightness and penetrating power
59. MCS, relative to jacking of a/ca) nose of a/c to direction of windb) tall of a/c should be backward direction of
windc) as in a , the surface should be level &
concrete
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JUNE-2003
Red brass is useda) for fuel and oil line fittingsb) as in a and also called bronzec) as in b and poor casting and forming qualityd) none
Nickel in steel increasesa) hardnessb) yield strength c) elastic limitd) ATA
Geiger counter is used toa) measure the radio active contamination of
a/c flying above stratosphereb) check the condition of a/c after heavy
landingc) check the penetration of a/c by ultraviolet
rays above stratosphered) NTA
Stalling angle critical angle of attack is thea) max. lift angleb) min.lift anglec) as in a and at which separation of airflow
takes from upper surface of wingd) as in b and at which separation of airflow
takes from lower surface of wing
Angle of ACME thread isa) 450
b) 380
c) 120
d) 290
Al. alloy rivets can be heat treateda) max. 5 timesb) max. 15 timesc) infinite timesd) none
The type of compressor used in air cycle cooling machine isa) axial compressorb) inward flow compressorc) outward flow compressord) none
MTCSa) Al-alloy bolts of dia less than ¼ mm are not
used in primary structureb) All Al-alloy nuts and bolts are used where
frequent removal is requiredc) Both a & b are correctd) None of the above
MTCSa) lap joint is best for oxy-acetylene weldingb) single lap joint is resistance to shearingc) single lap joint is resistance to bendingd) all of the above are wrong
Aircraft structural CRS is welded by a) butt welding
b) spot welding & sea weldingc) butt and spot weldingd) spot welding
Precision wire wound resistors are wound with a) carbonb) copperc) magnasiumd) all of the above
Corrosion of titanium and its alloys are (9A-180)a) difficult to detectb) easy to detectc) as in a & increase with high
temperature and saltd) as in b & removed with Al-grid or Al-polished
66. If acid is spilled over skin from an a/c battery then it cleaned with (9A-311)a) waterb) water & boric acidc) water & bicarbonate of sodad) all
67. Ni-cad battery is rapidly charged with (9A-315)a) constant current and variable voltageb) constant voltage and variable currentc) variable voltage and variable currentd) both a & b
68. Indication of corrosion on (9A-171)a) Al and Mg as etching and pittingb) Copper as greenish filmc) Steel as white marksd) Both a & b
69. Which non-ferrous metal can be case – hardeneda) Nib) Tic) Cud) Al
70. Jo-bolt is (9A-124)a) externally threaded two piece rivetb) externally threaded three piece rivetc) internally threaded three piece rivetd) can replace general bolts in compression to
their strength
71. Jum buckle is a) for minor adjustment in cable length and
cable tension b) has matching left and right hand threadsc) has internally threaded ends and externally
threaded end terminalsd) all of the above
72. Extrusion is used for making (Aviation Dictionary)a) channels
- 38 -
b) anglec) T-section d) All
73. Generator frequency depends on a) no of polesb) RPMc) Both a & bd) None
74. For a battery to have high ampere hour capacity and high terminals voltagea) low internal resistanceb) high internal resistancec) does not depend on internal resistanced) none
75. Plug gage is used for (Av. Dictionary)a) checking the internal dia of cylindrical
shaftb) checking the size of plug needed for
blankingc) checking the accuracy of holesd) all of the above
76. A bolt should be installed (Jeppeson)a) upward and downwardb) upward & forwardc) downward & forwardd) down ward & rearward
77. In a PN junction diode, holes move from P-region to N-region because of a) diffusionb) pressure differencec) higher concentration of holes in P-regiond) electrons in N-region attracts holes from P-
region
78. Every third tooth is made straight for a) sawing clearanceb) racker and for cleaningc) rap sawd) all of he above
79. Shunt ohmmeter measures (9A-330)a) low resistanceb) high resistancec) precision resistanced) infinite resistance
80. Mark the correct statement for transformer (9A-359)a) mutual induction is working principleb) output voltage depends on transformation
ratio/turn ratioc) all of the above
81. For constant voltage generator used is (9A-446)a) series b) shuntc) both a & bd) none
82. After heat treatment tempering is done to (9A-211)a) reduce brittleness and softens the
metalb) increase brittleness and ductilityc) increase hardness and strengthd) increase hardness only
83. Pot life and shelf lifea) pot life is related to mixed resin mixture
while shelf life is related to resin and hardened individually
b) a) if catalyst is mixed in less amount then it will increase pot life but reducing curing properties
c) both a & bd) none
84. Octal no. of 189 is a) 235b) 237c) 265d) 275
85. Internal wrenching bolt takes (9A-123)a) shear loadb) tension loadc) both shear & tension loadd) none
86. Clevis bolt is used for a) shear loadb) tension loadc) both shear & tension loadd) none
87. 10 KB-105 rivet has a) flat headb) countersunk headc) as in a & keyd) as in b and key
88. 10 KB-107 rivet has a) flat headb) countersunk headc) as in a & keyd) as in b and key
89. In Bristol modified method, defect occurs as a) white line (thin)b) green line on darkc) red line none of the above
90. In oil and chalk process, defect occurs of a) dark gray line on light surfaceb) dark line on red back groundc) green line on dark backgroundd) none of the above
91. Intergranular corrosiona) occurs along grain boundariesb) causes exploitation when it becomes severec) as in a and b and detected by UFDd) as in c and detected EFD
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92. Porosity in steel castings is detected by a) MPIb) As in a but DPI is more efficientc) Both are equally efficientd) None
93. Scuttered acts in MPI indicatesa) fine porosity and pittingb) welding cracksc) tight crackd) laps
94. Variable canvery pump is used wherea) output does not change with requirement of
engineb) output varied as per engine requirementc) as in a and fitted with no valved) as in c and fitted with compensated valve for
automatic adjusted
95. Ventral provides a) longitudinal stabilityb) longitudinal and lateral stabilityc) lateral stabilityd) none of the above
96. Hydraulic system is based on a) charle’s lawb) pascal’s lawc) boyle’s lawd) newton’s law
97. Essential calculating power area) force ???b) distance traveledc) time of doing workd) all of the above
98. 1 HP is usual to a) 735 electric wattsb) 746 electrical wattsc) both a & bd) none
99. Brinell hardness tester (9A-218)a) uses hardened spherical ballb) as in a and measure depth of impressionc) as in b and measure dia of impressiond) none of the above
100. Electric slating is the process of a) provide corrosion resistance surfaceb) provide good surface for further platingc) for ???d) all the above
101. Transferred metal by chemical action over a surface for a) provide corrosion resistance surfaceb) provide base for further platingc) forward upd) all the above
102. Acetylene gas is
a) colorlessb) as in a and if stored above 25 psi it becomes
highly unstablec) as in b and produced by reaction of calcium
carbide with waterd) as in a and produces a yellow colored flame
and smoky flame
103. Which fire extinguisher is best for electrical firea) carbon tetrachlorideb) foam c) waterd) CO2
104. While riveting, center hole can be located by a) center pitchb) templatec) hole finderd) all of the above
105. In ATA-100 specification of cable, electrical wire no. and letters are marked as a) prefix and suffixb) side by sidec) in middled) at the end
106. Cotter pin for castlellated nut is made of a) steel / CRSb) cadmium plated low carbonc) stainless steeld) both b & c
107. X-ray equipments are rated by (9A-479)a) ampereb) KVc) Wattd) None
108. When a component exceeds the alert valuea) it should be subjected before flightb) it should continue in flight and corrective
action takenc) it can be replaced in night or at 10 hrs
whichever is earlier d) none of the above
109. Alert value for a component is (CAR)a) recalculated at every 3 yearsb) recalculated at every 1 monthc) recalculated if it found unreliabled) as in c and it should be less than
original alert value
110. When the time between soaking and quenching increases, then a) hardness increasesb) softer the metalc) re-precipitation takes placed) tensile strength increases
111. O-ring can be checked by (9A-168)a) 4-times magnification
- 40 -
b) rolling the ring on a dowell and inner dia can be checked
c) rolling the ring on inspection cone & inner dia can be checked
d) all of the above
112. Metallizing is a process of a) rolling pure Al-alloy on Al-alloy surfaceb) Ni and Cd plating on steelc) By spraying Ni, Cr on steel with oxy-
acetylene flamed) All of the above
113. Which of the following are universal gatesa) NAND & ANDb) NOR & ORc) NAND & NORd) NONE
114. An 12 H5 indicatesa) dia 3/5 and head is not drilledb) dia 6/8 and head is not drilledc) dia 6/8 and head is drilledd) dia 6/8 and shank & head is drilled
115. Engine fires once in a) one revolution of crankshaftb) two revolution of crankshaftc) 3600 revolution of crankshaftd) none of the above
116. Mark the correct statementa) On a/c with steerable nose wheel, the
locking scissors are set to full swivel for towing
b) Tail wheel a/c should always be towed backward
c) Release all the hydraulic charge before towing
d) All of the above
117. Grub-screw is used for a) locking threaded fastenersb) by soldering it is lockedc) locked by peeningd) both a & c
118. Bearing strength is the force that resist the (Aviation Dictionary)a) stretching and lengtheningb) slidingc) at the point of tearingd) none
119. Magnetic force always acts on (Aviation dictionary)a) charged particleb) uncharged particlec) charged particle parallel to magnetic fluxd) none
120. Hydrogen gas is emit in the battery (9A-314)a) during all times in lead acid battery servicingb) in Ni-Cd battery, at the end of charging
c) when battery is overchargedd) both a,b,c
121. Ohm’s law does not hold for (Thereja)a) diodeb) NPN-transistor
c) Hgd) Both a & b
122. Speed of motor increase when load decrease current decrease because of a) frictional loss between motor’s moving partsb) frictional loss between field winding and
other partsc) induced back emf increasesd) none
123. Marking of fluid line is given by (9A-102)a) color and geometrical shapeb) color and wordsc) show the function and direction of fluid flowd) all of the above
124. MTCSa) carbon graphite has more compressive
strength than Kevlarb) Kevlar has more compressive strength than
carbon graphitec) Carbon graphite has more tensile strength
than Kevlard) All of the above
125. Stress corrosion is likely to occurs in (9A-173)a) aluminium b) Mgc) CRSd) Al and stainless steel
126. When re-torqueing is required for a ???a) re-tighten the nut without backing off the
nutb) re-tighten the nut with backing off the nut
one turnc) re-tighten the nut with backing off by two
turnd) never re-tighten the nut
127. When in a/c it is required embossing, etching and marking, then electrical etching is done by a) electrical etching pencil, if applied lightlyb) electrical etching pencil but only for CRSc) electrical etching pencil is prohibited in a/cd) both b & c
- 41 -
PAPER-II (OCT. 2003)
1. Flight tab is:a) Balance Tabb) Trig Tabc) Servo Tab
2. End terminal of cable is removed by :a) Drillb) Scriberc) Chisel
3. In ATA-100 specification of cable, electrical wire are identified by:a) At the endb) At the middlec) Side by side
4. What procedure is used to distinguish heat treatable alloys from treatable alloys:a) 10% solution of caustic sodab) 5% solution of muriatic acidc) Rockwell testd) 10% solution of H2SO4
5. When welding a high carbon steel used:a) Low carbon rodb) High carbon rodc) Rod of either low or high carbon contentd) Rod of intermediate carbon content
6. Choose the correct statement:a) Oxy-acetylene flame have more heat energy than oxy-hydrogen flameb) Oxy-hydrogen flame have more heat energy than oxy-acetylene flamec) Both have same heat energy
7. An altimeter consists of:a) Two aneroid capsulesb) Pressure setting knob for adjusting barometric pressurec) Three aneroid capsulesd) All are correct
8. Mark the correct statement regarding drill:a) No. 80 is smaller than No.1b) No.1 is smaller than No.80c) Letter A is bigger than letter Z and No. 80d) Letter A is smaller than No.1 and Latter Z
9. In absence of barometer, altimeter is checked by:a) Micro manometerb) Vacuum chamberc) Vacuum gauge
10. Static vents in pitot static system are located with:a) Free at air streamb) To eliminate ice formationc) Flexibled) Both (a) & (b)
11. X-ray used in NDT inspection have:
a) Short wave length and high penetrating powerb) Short wave length and short penetrating powerc) High wave length and short penetrating powerd) high wave length and high penetrating power
12. To repair a crack, the joint to formed:a) Lapb) Buttc) Teed) Corner
13. Dzus fastener identification includes:a) Head typeb) Diameter & head stylec) Head style, dia & lengthd) None
14. Interrupt flux will cause for:a) Corrosionb) Weak weldc) Lack of penetrationd) Porocity
15. Mark the correct statement:a) Angle between chord line and longitudinal axis is called incidence angleb) Angle between chord line and longitudinal axis is called angle of attackc) Both (a) & (b)
16. Mark the correct statement:a) Output will be high if any one of the input become high for AND gateb) Output will be high if any one or all of the input become high for OR gatec) Output will be high if all of the input will be low for AND gated) None
17. Purpose of using flux in welding is to:a) Reduce oxidationb) Increase the bendingc) Provide flow to the d) All
18. Rockwell tester measured:a) Resistance to penetrationb) Diameter of impressionc) Size indentationd) None
19. Aluminium alloys are welded with:a) Oxidizing flameb) Reducing flamec) Neutral flamed) Reducing flame but first the flame is neutral and then reduced
20. Unix is:a) Single operating Unitb) Double operating Unitc) CAD and record of engineering organizationd) None
- 42 -
21. Two wires each one meter long are kept a distance of 0.02 meter apart 1 angle current is flowing through each wire then force acting on the will be:a) Attractive if the direction of the current
flowing through wires is sameb) Attractive if the direction of the current
flowing will oppositec) Repulsive if direction of current w3ill
opposited) Both (a) and (c) are correct
22. In case of battery, which of the following quantity can be stored:a) Energyb) Chargec) Currentd) None
23. T4 and W indicates:a) Solution heat treatmentb) SHT and quenchedc) SHT and artificially agedd) SHT and cold worked
24. For filling slots and key way used:a) Knife fileb) Square filec) Half rout filed) None
25. Mark the correct statement:a) When batteries are connected in series then
capacity will increaseb) When batteries are connected in series then
voltage will remain copsc) When batteries are connected in parallel
then current will increased) All of the above
26. Jet fuel identifiers are:a) Performance no. and designate the volatility
of fuelb) Performance no. and are relative to the fuel
performance in the a/c enginec) Type no. with sterelation to the fuel in
performance in the a/c engined) None
27. The greatest memory of which device:a) Winchester type device disksb) Tape type recording instrumentc) Floppy disk, unitd) None
28. Electric arc welding:a) Emits ultra violet raysb) Emits infrared rays at high currentc) Poisonous gasd) All of the above
29. In instrument, range marking is confirm with:a) Type certificate data sheetb) Flight manual
c) Manufacturer maintenance manuald) All
30. Aramid is identified by:a) Black colourb) Yellow colourc) Whole glaming colourd) Brown colour
31. Alclad is:a) Coating of Al. alloy on pure Alb) Coating of pure aluminum on Al. alloyc) Coating of pure Al on non metald) None
32. Micrometer shadow is on the:a) Shadow of the thimbleb) Shadow of the sleevec) Shadow of the spindled) None
33. In silver solding, metal melts:a) 200-400 degree Cb) 100-1500 degree Cc) 600-850 degree Cd) none
34. Synthetic thermoplastic:a) When heated become softb) When heated become hardc) When cooled become hardd) Both (a) & (3)
35. A triode consists of:a) A plate, grid and heaterb) A plate, cathode and heaterc) Plate, screen and heaterd) Plate, cathode, heater and wire screen
between the plate and
36. Calculate the power which V-28 volt & R-28 ohm:a) 22b) 24c) 36d) 28
37. What about the supporting distance between two support in a metal have outside dia 5/16”:a) 9”b) 16”c) 22”d) 28”
38. Aspect ratio in a wing can be calculated by:a) Span/cordb) Span/areac) Span/aread) None
39. Instrument panels are usually shock mounted to absorb ___ shock:a) Low frequency high amplitudeb) High frequency low amplitude
- 43 -
c) High frequency high amplituded) Low frequency low amplitude
40. Brinell hardness tester is applicable to:a) Small part and high hardenerb) Small part and small hardenerc) Large part and small hardenerd) Large part and large hardener
41. Finished threads on bolt is checked by:a) Screw pitch gaugeb) Ring thread gaugec) Filler gauged) All
42. Class-B fire includes:a) Fire in wood paper cloth etc.b) Fire in flammable liquidc) Fire in combustible materiald) All
43. In a transformer, voltage is step-up by 1:2 ration then:a) Voltage in secondary become halfb) Current in secondary become halfc) Current in secondary become doubled) None
44. % of material (Pure Al) required for clading on Al. alloy:a) 5%b) 5 – 10%c) 10%d) 5 – 8%
45. Weber-1 is equal to:a) Powerb) Voltagec) Ampered) None
46. Mark the correct statement regarding Al. alloy tubing:a) Dent a acceptable up to 10%b) Clicks is acceptable up to 20% and not goes
to heelc) Dent to acceptable up to 20% and not goes
to heeld) None
47. Which statement is correct regarding ASI:a) Static pressure is given inside capsuleb) Static pressure is given outsidec) Measure differential pressure
48. Resistance in pure semiconductor is:a) Infinite at 0ºb) Remains constantc) Decrease with increase in temperatured) Increase with increase in temperature
49. 90º angle made on the working edge of the scriber is:a) Used matching and marking through holesb) For matching and marking through holes
c) To hub the correct marking
50.
- 44 -
Paper II - Feb(2004)
1. What is difference between bolt and screw: a) screw is made of lesser strength materialb) screw having no defined grip lengthc) screw differ from bolt only in head styled) all the above
2. In case of the bolt grip length -9A,Aviation Dictionarya) it should be equal to thickness of mat
generallyb) it may be slighter longer grip length should
be used with washerc) must not be longer than mat thicknessd) none
3. “furring” occurs in MPI when: a) insufficient magnetizationb) excessive magnetizationc) mishandling or cordessness atten/durin
magnetizing partd) all the above
4. Mark the correct statement, when securing Al and Mg alloy structurea) Al-washer should be used under steel bolt
headb) Al-washer used under nut of steelc) Any corrosion attacks washer rather than
structured) All of the above
5. Linseed oil used as a) cleaner solventb) paint removalc) both a & bd) to prevent deterioration of protective
treatment and used inside the tube
6. Lapse rate is –Mechanics of flight (Kermode)a) rate of decrease of volume as per rise in
altitutdeb) rate of decrease of temp. at rate of
1.98 degree c/1000th feet rise in highc) decrease in rate of Pr. With rise in altituded) none
7. Degreasing agent is kept at temp-CAIP BL/8-1-593a) 60 degree – 70 degree Cb) 70 degree – 80 degree Cc) 70 degree – 90 degree Cd) none
8. Clogging of metal particle in the gullet of file teeth is known as -Shop Theorya) peening b) pinningc) cloggingd) stretching
9. Spreading & stretching of metal by hammering is known as -Aviation Dictionary
a) peeningb) swaging & peeningc) cloggingd) stretching
10. Proper indication in DPI is not obtained becausea) more dye is appliedb) penetration is not properc) improper surface cloaningd) dye used is less in quantity
11. Stress /strain unit is called a) proof stressb) proper final limitc) modulus of elasticity d) elastic limit
12. Load is applied per square inch a material can withstand without resulting in a permanent elongation more than 0.0001” per inch of gage length after complete release of stress is known as a) elastic limitb) proof stressc) proportional limitd) yield strength
13. Pin is useda) in non-load carrying partb) in shear applicationc) is not reusedd) both b & c
14. flat head pin used -9A 195a) in tie rod terminalb) secondary control systems which are not
subjected to continuous operationc) both a & b
15. clevis bolt installed a) with castle nutb) with shear nutc) as in a , locked by cotter pind) as in b , locked by cotter pin
16. In respect of self locking nut mark the correct statement -9A 127a) it is used where rotation is involvedb) it is used in vibrationc) it is used in light connection
17. Tolerance meansa) positive allowance + negative
allowanceb) positive allowancec) in orthography not more than 3 view are
possible d) both a & c
18. Fit is defined as –Shop Theorya) friction involved between bolt shank
and hole when pushedb) in term of dia of bolt & hole c) both a & bd) all are incorrect
- 45 -
19. Special screw is built –FAA 9Aa) for close tolerance applicationb) for shear load applicationc) for heat treated part
20. In respect to O ring which is correct -9A 167a) used in Pr. b) A back up is used in high pressure
application in actuator cylinderc) Same size shape should be replaced d) All the above
21. the purpose of accumulator is –Aviation Dictionarya) it maintain the system pressureb) it provides rational pressure when engine in
not runningc) as in a , compensate the small leakaged) as in b
22. post emulsitiable dye is removed in “in-situ” position by - CAIPa) whipping clean rag damped with dye
solvent followed by cleaning by dry rag b) carbon chloride and clean with clean ragc) no requeaning or removald) as requirement manufacturer’s instruction
23. Lockbolt is combination of a) rivet +b) lock nuttc) bolt +d) rivet +bolt
24. Grindiack indicates as –CAIP BL/8.5 ,P.NO.-9a) sharp lineb) irregularities over the affected areac) indicates in magnetic writingd) as built into a ridge which stands proud of
the surface
25. Satisfactory magnetic flux in specimen is known by a) thin soft material in which crack has been
artificially induced b) by ammeterc) by voltmeterd) none
26. About NAND gate which is correcta) when inputs are given there will be an
outputb) when any of the input is not given output will
be givenc) more than one output may be obtained but
only one input is required d) all of the above
27. galvanometer can be used as voltmeter by a) connecting low resistance in seriesb) connecting high resistance in parallelc) connecting high resistance in seriesd) connecting low resistance in parallel
28. Purpose of tempering is a) to reduce strengthb) to reduce ductility and increase brittlenessc) to reduce hardness and reduce
brittlenessd) to increase hardness and reduce brittleness
29. About annealing which is correct during and after annealing a) high rate of cooling fine grainb) slow cooling, low strengthc) slow cooling, high strength d) none
30. Spherodising is done a) prolonged heating just above critical tempb) prolonged cooling just below critical tempc) prolonged heating just below critical
tempd) smaller time
31. Mark the correct statement about cable a) on diameter of wire, length is dependentb) strands are laid to build up a cablec) sized by no. of stands multiplied by no of
wires in each strandd) all of the above
32. Paint is combination of a) Enamel = pigmentb) Varnish + Enamelc) Pigment +Vehicled) Pigment + Varnish
33. Paint removal is necessary from component, structure when a) corrosion is suspected to run between the
paintb) if paint is not compatible with repair scheme
then touch-upc) if paint finish is destroyedd) all the above
34. Plastic stored a) horizontally one over another and height
should not be more than 18”b) horizontally with a protected barrier plastic
between two sheetsc) as in a + smaller sheet should be
stored over the larger sheet to avoid unsupported overhang
d) as in a + larger sheet should be stored above smallest sheet for proper distribution of load
35. Buckling of plastic during stopping prevented by a) storing tilted 10 degree from vertical in a
proper bin with the wrapping with masking tape
b) strong horizontally with masking paper tape as protective means with height not exceeding 18”
c) all the above
- 46 -
36. Working drawing-9A 35a) given rough idea about the component,
system drawnb) it includes assembly drawingc) as in b + includes installation drawingd) all of the above
37. Mark the correct statementa) leader line is used to put the dimension overb) phantom lines used to indicate the portion of
part not shown on drawingc) break-in line indicates the alternative
position of partd) none
38. Drag which don’t contributes to the lift of a/c is a) skin friction dragb) parasite dragc) wing drag d) profile drag
39. Due to presence of bacteria in fuel tank which is likely to occura) craves corrosion b) fretting corrosionc) microbial corrosiond) galvanic corrosion
40. If any of the winding in transformer is shorted then a) it is easily can be detected by ohmmeterb) transform will be heated upc) output will be higherd) output remains const of can be checked by
magger
41. Mark the correct statement regarding Ni-Cad batterya) Stated charge know by s.g. at electrolyteb) Electron flows from –ve and O2 evolved
from +ve platec) Electrical leakage can be known by milli-
voltmeter test between plate and containerd) Both a & c
42. Brinell no indicated by a) weight applied in lbs divided inch sq.
impressionb) weight applied in kgs and divided by
mm sq. impressionc) weight applied in kgs and divided m2
impressiond) weight applied in lbs and divided by clia-at
impression
43. Find out the total equivalent resistancea) 3rb) 2.5rc) 1.5rd) 1r
44. Which gears tooth cut parallel to the axis of rotation-(Shop Theory)a) spur gear
b) herringbone gearc) worm geard) bevel gear
45. Which of the followings having – ve coefficient of resistance with increase in temp -9Aa) conductor b) thermistorc) transistord) relay
46. The property of fluid of giving on vapour in sufficient quantity so as to ignite momentarily when flame is applied is known as a) fine pointb) Flash pointc) Vapour pointd) Burning point
47. High pr. O2 cyl. For breathings purposes is identified by a) green color with the letter “BREATHING
OXYGEN” stendled white letter with 1” height
b) yellow color with letter “AVIATOR’S BREATHING” oxygen with yellow color 1” hight
c) Green color with letter in white with 1”hight AVIATOR’S BREATHING OXYGEN
d) Yellow color with letter stenciled aviator’s breathing oxygen.
48. When towing a tail-wheel a/c then mark the correct statement a) Tail wheel must be lockedb) Tail wheel must be unlockedc) As in a + by attaching a suitable roped) As in b+ a suitable skid attachment and
lifted upward little.
49. Anchor point of a/c on ground is known as a) screw picketb) pad eyesc) stakesd) spike
50. Light a/c is parked by -9Aa) cableb) chainsc) manila rope with 1” slacknessd) with any rope
51. Before jacking an a/c few steps are taken – regarding this mark the correct statement -9Aa) for heavy a/c and smaller a/c same
procedure & precaution should be observedb) jack must be of capacity 20% more than the
weight to be liftedc) for proper capacity, condition of locking
pin or arm , proper functioningd) all of the above
52. Resistance depends on -9A 274a) length, material, temp. cross, section
- 47 -
b) length , tempc) mat , cross section
53. mark the correct statement-9A 296a) rheostat used to vary voltage in the circuitb) potentiometer used to vary the voltage
in circuitc) potentiometer is a 3 terminal deviced) none
54. for tempering condition which is correct-9Aa) T2 indicates s.h.t + cold workedb) T3 indicates sl. H. treated and then cold
workedc) T6 indicates
55. Regarding check AN 316 which is correct –Aviation Dictionarya) it having right hand thread & left hand
threadb) as in a & used under plain nutc) having left hand threadd) as in c & used under plain nut
56. Two stoke actuating cylinder is operated by a) two way selector valveb) four way selector valvec) pneumatically operated and also which
provide returning force d) all of the above
57. Mark the correct statementa) shunt type ohmmeter is used to measure
lower resistanceb) meggar is used for very higher resistancec) multimeter is sensitive more to A.C. than
D.C.d) all the above
58. BASIC if expanded gives a) bigginer all purpose symbolic
instruction codeb) bigginer all purpose symbolic information
codec) bigginer all purpose system Indian coded) bigginer all purpose system instrument code
59. SCR is a) two junction diodeb) three junction diodec) two junctions are forward biased, two ae
reverse biasedd) all of the above
60. Mark the correct statement regarding reamera) it is made of high carbon steel or HSSb) it roughens the drill hole to larger size c) as in a + enlarge the drill hole to close
tolerance and smoothnessd) all the above
61. Mark the correct statement, regarding check valve functiona) it directs fluid according to plan
b) it directs fluid in one direction unrestricted & unrestricted flow in either direction
c) inline type check valve used in the component to full flow in one direction
d) all of the above
62. Current from emitter to collector flows whena) emitter base function is forward biased
& base collector junction is reversed biased
b) emitter-base junction is reverse biased & collector base junction is forward biased
c) base collector is closed) none
63. Mark correct statement regarding punch-9A 531a) it is used to locate centre to be drilledb) pin punch is a tapered type punchc) another name for drift punch is drive punchd) all the above
64. Files are -9A 536a) annealed & temperedb) made of high grade tool steelc) hardened & tempered
65. Alodine is applied by a) cladding b) dippingc) primingd) as per manufacture’s diagonosis
66. For safe balance while jacking a) weight added forward & rearward of
fuselageb) must not be jacked on single wheelc) always jacked inside the hangerd) all the above
67. Force acting around a charged body is –(Aviation Dictionary)a) electromagnetic fieldb) electrostatic fieldc) magneto motive fieldd) induction field
68. Unit of magnetic flux is –Aviation Dictionarya) Weber ( also Maxwell)b) weber / minimumc) guaged) test
69. Which of the following having lowest fusing temperature (Titterton)a) eutectoidb) hypoeutectoidc) hypereutectoidd) electectiod
70. The chemical mixture of Fe & carbon is (Titterton)a) cementiteb) pearlitec) eutectoid
- 48 -
d) austentite
71. Shake proof washer used where a) self locking nut not recommendedb) castle, sheer nut not recommended where
locking facility not availablec) where frequent removed & installation not
desiredd) all of the above
72. Indication voltage is dependent in case of thermocouple on a) material & length of the thermocoupleb) difference in temp. between hot & cold
junctionc) resistivity of thermocouple materiald) all
73. Characteristic of diaphragm or capsule dependent on a) thickness of materialb) corrugation depth and number of
corrugationc) capsule aread) all of the above
74. Mark the correct statement regarding fire detection sysa) thermal switches connected in each other &
parallel series with indicating lightb) thermocouple element works on rate of
temperature risec) probes are connected in series between two
circuit loop on fenwal spot detection system d) all the above
75. If aluminum part is not quenched within recommended time after heating then -9A 213a) corrosion may occurb) aluminium will be excessive brittlec) reprecepitation will occurd) both a & c
76. Improved quenching can be obtained by, in case of ferrousa) suitable quenching mediab) time gap between soaking & quenchingc) all the above
77. During refueling chock is set at little distance from wheel because -CAPa) to absorb shock when tire is setb) electro static generatedc) chock may be trapped into the fired) chock can be applied if a/c moves during
refueling
78. Close tolerance bolts are -9A 123a) pushed into the hole by hand pressureb) it is machined accurately than general
purpose bolt and installed by hammering
c) used where light drive fit is requiredd) all of the above
79. Mark the correct statement -9A 539a) ½” or less dia hole can be drilled by hand
drillb) hole drilled undersized enlarged and
smoothened by reamerc) as in b + reamer is made of HSS &
carbon steeld) all the above
80. Mark the correct statement regarding washer-9A 131b) Al washer is used with both Al & Mg
structurec) As in a and where dissimilar metal corrosion
is a factord) Generally ‘cd’ plated washer is usede) All the above
- 49 -
PAPER-II (JUNE-2004)
1. Al-alloy rivet 2024 can be used:a) Used on a/c immediately after heat-
treatment
2. Circular pitch (C.P.) of gears:a) Distance between corresponding point on
adjacent teeth at pitch circle
3. Bottoming TAPS are used for:a) To make thread properly at the bottom of
holes & not tapered
4. Hand held reamers have:a) Straight & taper shank
5. How angle of object measured:a) Bevel protection & sine rule methodb) Bevel protection onlyc) Bevel protection & cas Rules methodd) Bevel protection & since cas rule
6. How the gear teeth size measured:a) Measured at the chord thickness where pitch
circle crosses at points
7. MTCS:a) Ball peen hammer is used where bent is
sharp
8. Identify the bolta) Re-worked bolt
9. Measure the reading 14º 20’:a) 14º 20’b) 20º 11’c) 30º 10’
10. MTCS:a) Bolt has right hand threads except in special
cases
11. In part no. AN 320-10, 10 is:a) Dia. of nut 5/8’
12. Identify the bolt ALPPH-88:a) Pull thru lock rivet
13. Primary control surface are:a) Aileron, elevator, rudder
14. Wings of high speed a/c are:a) Thinner in cross-section than L.A.b) Thicken in cross-section than L.A.c) Same as cross-section than L.A.d) It is thicker toward the wing tip
15. Straight & level flight:a) Thrust = drag & lift = weight
16. Stability of a/c around longitudinal axis is:a) Lateral stability
17. When a/c speed increases, there is a change:
a) Dynamic pressure
18. Inductance which offers change to current is:a) In A.C. circuit, inductance reactance
19. In an A.c. circuit, inductance causes current to:a) Logs the voltageb) Lead the voltagec) 180 out of phased) phase with voltage
20. A wire of resistance 4Ω stretches to twice its original length, resistance is:a) 8Ωb) 4Ωc) 2Ωd) 16Ω
21. 7 resister connected to 20Ω each in parallel voltage 2v ammeter connected across the circuit measure:a) 7/10 ampb) 1/10 ampc) 2/10 ampd) 20/10 amp
22. Speed of light energy in 3 lakhs k.m & frequency is 100 Mhz, its wave length is:a) 3 meters or 9.27 ft.
23. Convert 296 into binarya) 100101000
24. To prevent corrosion Al. alloy sheets how they are stored:a) Only the coat of linced/oil is sufficientb) Use of plastic cover without oil coatingc) Use of oil coating in addition to plastic cover
25. What causes-de-lamination of composite layer:a) In adequate application of heat on pressure
during process
26. How the composites are electrical bonding:a) Al. metal is bonded to the composite to the
adjacent metal to dissipate charges
27. The triode grid purpose is:a) Reduce space charge
28. Zener diode acts as a voltage regulator:a) To control the over voltage in transistorize
voltage regulator
29. When PN junction start conducting:a) When the plate is more +ve than the
cathodeb) When the cathode is more +ve than platec) When the cathode & plate is at same
potential
30. P-N junction can not used as:a) Rectifierb) Amplifier
- 50 -
c) Transistor
31. The advantage of connecting cell in battery:a) In series when external voltage is equal to
the total internal resistance of cell
32. MTCS in cause of bearing:a) Taper roller bearing take simultaneously
radial & axial load in one direction
33. MUNTZ metal is:a) It is brass & made for manufacturing or bolts
& nuts and excellent resistant to saline water
34. Speed of computer is calculated by:a) Nano second 10-9
35. Brinelling is:a) Indentation framed during a brinell hardness
test
36. Eleastometer in bearing is:a) Layers of rubber impregnated in layers of
metal
37. Algorithm:a) Has infinite (finite) inputs but definite o/p
38. Computer can process at a time:a) One instruction
39. In case of hydraulic seals colour indicates:a) Green colour for skydrol fluid
40. To thickness of electroplating is checked:a) By eddy current methodb) By BFD testc) By measuring with caliper
41. Magnetic particle inspection circular magnetization show:a) Lateral crackb) Longitudinal crackc) 45º crackd) both (b) & (c)
42. The magnetic field around current currying conductor is:a) Concentric circle of magnetic field around
conductor
43. In dye penetrate process developers function is:a) React with penetrate to show cracks
44. In dye penetrate process how the parts are cleaned before process:a) Petroleum base processb) Kerosenec) Water & volatile solvent
45. In modern a/c & jet a/c titanium is used for:
a) High strength to weight ratio, heat resistance corrosion resistance, very hard ftigue resistance
46. How the fatigue failure is indicted:a) 45º to the crack propagation
47. Millibars is the units of borometric Pre. Then standard pressure is shown by:a) 14.7 inches of mercury
48. Theory of wt. & balance, the distance between fulerum & the object is:a) Lever arm
49. Which material the magnetic lines of force can pass very easily:a) Soft iron
50. For drilling holes in flexi glass:a) Standard twist drills are used
51. To prevent corrosion interior should be cleared by:a) Vacuum pressure
52. Grey colour corrosion product is form in:a) Al. or Mg. alloyb) Copper alloyc) Steel alloy
53. Fully charged lead acid battery have:a) 30% acid & 70% water by volume
54. For demagnetization:a) Ac decreasing current is used gradually zero
55. Range of ammeter can be increased by:a) Shunt
56. Pure semiconductor diode at 0ºC has:a) Resistance decrease with temperature
increasesb) Resistance increase with temperature
increasesc) Infinite resistance at 0ºC
57. Machine screw should never used in:a) Stressed area
58. To locate the sub surface defect:a) Eddy current & X-ray is used
59. Which metal render steel brittle at rolling or forging temperature:a) Sulphur
60. The drawing in which objects are shown as top view, front view, bottom view:a) Orthographic drawing
61. In isometric drawing lines are drawn:a) Vertical lines are drawn vertical & horizontal
line parallel to center line
- 51 -
62. Fuselage station is:a) The distance to a given point is measured in
inches parallel to center line extending through the a/c from the noise through the center of the tail cone
63. MTCS in (Light emitting diode):a) It emits more light with increase in
temperatureb) The crystal emits lights with increase in
temperaturec) Light remains constant with increase in
temperature
- 52 -
Paper II (Oct – 2004)
1. Spur Gears – Gear & pinion2. Compound Gear – numerical3. ABCDEK-connectors4. Multiple variable capacitor5. Epoxy6. Nomex7. Fire resistant resin8. ‘O’ rings cracks checked by 9. An 310 nut use on 10. short form of round head11. PH DAN stands for12. CPU-Full form13. Sequential and repetitive14. Cotter pin material used on AN 310 nut15. Sheet spring washer16. Galvonic corrosion17. Stress corrosion18. Fretting corrosion19. Ballast20. Levelling21. towing22. resonance RLC23. OHMS law24. Eddy current method for detecting surface
defects25. Ultrasonic frequency range26. ‘N’ indicates27. Transformer28. Photo electric effect29. IQI30. Scotty diode31. C.L. / G retraction alighment32. Lift & drag depends on 33. LED34. Bolts generally have RH thread 35. Bolt when tightened with head36. Rust preventive compound37. Addendum is 38. Gear ratio39. Binary40. Hardness testing41. Statically generated emf42. Hi-shear43. Spatter (welding)44. Canisotropic45. Carbon graphite has more compressive strength
than Kevlar46. Alert value47. Electrical fire extinguisher48. Engine crankshaft rotation49. broach50. trickle charge51. nut re-tighten52. screw pitch gauge53. electrical elching54. lift off55. Gelgercounter is used to 56. Capacitance depends on 57. Thermoplastic58. Laminated plastic59. Acrylic plastic60. Annealing
61. Working drawing62. Power factor63. Rms value64. DIL65. Matrix66. Rivet drawing67. Carbon over 3%68. Battery has +ve & -ve terminals connected
increases capacity & decreases internal resistance
69. Mag. Treatment70. Al. boron have stable str. due to tight bonding71. Resistance circuilt (numerical)72. Resistance increases as temp. decreases73. Motor – back emf74. Chisel is classified by width of cutting edges75. Depth of thread76. Swaging77. Dye penetrant78. Drill79. Magnut when dropped through a coil
- 53 -
PAPER-II Feb- 2005
64. Which view is used to show the location of object as an angle to the plane:a) Sectional viewb) Plan viewc) Elevation viewd) Auxiliary view
65. 100 LL, AVGAS:a) Low lead with dye3d blue colourb) Low head with dyed red colourc) High lead, blue in colourd) High lead, red in colour
66. Additives are added to:a) To prevent microbiological growthb) To act as an antifreezec) To avoid detonationd) Both (a) & (b) are correct
67. For bending tubes of small diameter:a) Low melting point, fusible alloy & sand
is usedb) Can be simply bended by bandc) Cannot be bended
68. When securing steel bolts in soft alloys:a) Zinc coating is usedb) Chromium coating is usedc) Cadmium plating is usedd) Nickel plating is used
69. Core of aluminum is used in electrical cables:a) Low resistivityb) Weight savingc) Temperature compensation
70. Self plugging rivets can:a) Replace solid rivet of same diameterb) Replace solid rivet, but one size largerc) Replace hollow rivetd) Cannot replace
71. Corrosion on Mg is cleaned by:a) Hydrochloric acid solutionb) Sulphuric acid solutionc) 10% by wt. of chromic acid + .1% H2SO4
72. What is difference between aluminum oxide & iron oxide:a) Iron oxide is porousb) Aluminum oxide is porousc) Aluminum oxide is non-porousd) As in (c) & it prevent further corrosion,
once formed
73. Interior cleaning of a/c can be done by:a) Detergent & shop solutionb) Phosphoric acidc) Vacuum cleaner
74. Channel, angles & T-sections are:a) Extruding
b) Forgingc) Cold working
75. Heat treatment of Ti is done to:a) Relief of stressesb) To provide max. ductility for subsequent cold
workingc) Thermal hardeningd) All
76. If there is a lag between soaking & quenching:a) Repreapitation will occurb) Improve corrosion resistantc) Strengthens it
77. Temperature inside furnace is measured by:a) Pyrometerb) Thermocouplec) Thermometer
78. Boiling point varies:a) Directly with volumeb) Indirectly with pressurec) Directly with pressured) Indirectly with volume
79. If volume is doubled keeping temperature constant new pressure will be:a) Same as initialb) Twice of initialc) Half of initiald) Not affected
80. Forces acting on a/c are:a) Compression & gravityb) Lift, drag, gravity, brustc) Thrust, drag
81. Lift on can aerofoil varies with:a) Directly with area of surfaceb) Indirectly with area of surfacec) Not affected
82. If length of wire of heater is reduced its wattage rating will be:a) Remain sameb) Decreasesc) Increasesd) Unaffected
83. If ‘n’ cells are connected in series with EMF ‘E’ & internal surface ‘P’ then voltage across ‘N’ cells shown on voltmeter is:a) NEb) (N – 1) Ec) ( N – 1) / NE
84. Mark the correct statement:a) Rheostat has three terminalb) Potentiometer has three terminalc) As in (b) & has low resistance value
- 54 -
d) Rheostat has two terminal & has low resistance value
85. Vicious cycle is related to:a) Generatorb) Motorc) Battery
86. If a/c Ni-Cd battery is to be stored for longer time:a) It should be fully charged & electrolyte is
drainedb) It should be fully charged & discharged
at 1 hr. ratec) As in (a) and terminals are cleaned properly
87. Which safely device take overload for a certain period:a) Fuseb) Current limiterc) Circuit breakerd) Thermal protector
88. Best suited meter for checking discontinuity is:a) Ammeterb) Voltmeterc) Ohmmeterd) Bonding tester
89. Ohm’s law is applicable to a.c. circuit for:a) Maximum voltage & currentb) Effective voltage & currentc) Instantaneous voltage & current
90. If an alternator has 4 poles, and 1800 rpm. frequency is:a) 60 cpsb) 120 cpsc) 100 cps
91. In an inductor circuit, current:a) Lag voltge by pie/2b) Lead voltage by pie/2c) Not affected
92. Charge stored in capacitor varies with:a) Directly with area & voltageb) Inversely with distance between platesc) Both
93. Capacitance is measured in:a) Farad & varies directly with areab) Microplaran & varies directly with dielectric
strength of mediac) Picofarad & universally proportional to
distance between platesd) All
94. If frequency of a transformer is charged from 50 to 60, voltage is secondary winding:a) Increases in ratio of 60/50b) Decreases in ratio of 50/60c) Unaffected
95. In a parallel inductor, capacitor resonant circuit:a) No current flowsb) Max. current flowc) Voltage is smalld) Zero resistance
96. For full power, full wave rectification:a) Two diode are usedb) 4 diodes are used in bridge circuitc) Either 2 or 4 diodes can be used
97. Which defect is not defected by radiography is composite material:a) Porosityb) Wide crackc) 11 to beamd) Defect perpendicular to beam
98. Structural grade kevlar is:a) Kevlar 49b) Kevlar 29c) Kevlar 129
99. For greater tensile & compressive load:a) Fibre glass sheet is usedb) Sandwitched structure with nomex skinc) Sandwitched structure with graphite
skind) All
100. Oil & grease contamination on composite as detected by:a) Water break testb) Coin tap testc) Radiography
101. In silver brazing temperature is:a) 200ºC – 400ºCb) 350ºC – 500ºCc) 1000ºC – 1200ºCd) 500ºC – 800ºC
102. In which type of brazing, localized heating is used:a) Resistance brazingb) Furnace brazingc) Induction brazing
103. Welding of crack is considered as:a) Butt jointb) Lap jointc) T – joint
104. Mark the correct statement:a) Spot welding is done by using 2 copper
electrodesb) Seam welding is done by using copper
rollersc) (a) & (b) & seam welding is continuous
used
105. Flux is used in soft soldering:
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a) To prevent effect of oxidationb) To remove oxidec) To increase strengthd) All
106. Aluminum is welded using:a) Neutral & slightly carburizingb) Oxidizingc) Neutrald) Carburizing
107. Ultrasonic welding is used in:a) Ironb) Cotinc) Aluminumd) Honeycomb
108. In reciprocating engine, engine fires at:a) Every solutionb) Every second revolutionc) 360 rotation of crankshaft rotation
109. In tail wheel a/c, when nose is in direction of wind:a) Elevator is uplockedb) Elevator is locked in down positionc) Elevator is locked in neutral positiond) Any of above
110. Screw driver (common) must full the slot at least:a) 75%b) 25%c) 50%d) 100%
111. During hack sawing, speed of hack sawing should be:a) 50 – 60 strokesb) 100 – 120 strokesc) 80 – 90 strokesd) Any desired speed
112. While drilling:a) Hard metal should be drilled firstb) Soft metal should be drilled firstc) Any can be drilled firstd) As in (a) to prevent formation of “egg
beater” first
113. All head less set screw should be tightened by using:a) Allen wrenchb) Box and wrenchc) Open and wrench
114. Least count of vernier is:a) One division of vernier divided by total
vernier divisionb) One main scale division, length by total
vernier divisionc) One division of main scale by total main
scale divisiond) None
115. Back-last error is vernier micrometer:a) Manufacturing defectb) Wear between screw & nutc) Slippage between screw & nutd) All
116. Aviation snip is used for cutting:a) Heat treatable aluminum alloy &
stainless steelb) Heavy sheetc) Mild steeld) All
117. Yellow is:a) Straight aviation snipb) Left hand snipc) Right hand snip
118. Hole to be reamed should be drilled:a) 0.003” – 0.007” undersizeb) 0.009” – 0.012” undersizec) 0.015” – 0.018” undersize
119. Centre of cylindrical & round shaft is found by:a) Combination setb) Micrometerc) DTI
120. Pitch of metric micrometer is:a) 0.5 mmb) 0.05 mmc) 0.1 mmd) 0.01 mm
121. Part of thread joining two adjacent flank at bottom of groove:a) Elankb) Gestc) Rootd) Depth of thread
122. D.P. is:a) No. of teeth per inch of pitch diameter
& size of teethb) Imaginary circle on which teeth are locatedc) (a) & (b)
123. C.P. of spur gear is:a) Distance between corresponding point
of adjacent point on tooth at pitch circle
b) Distance between root & crest
124. Scratches in highly stressed skin can cause:a) Crack at high speedb) Starting point for corrosion at high speedc) Cause filliform corrosiond) All
125. Binary equivalent of (296)10 is : (100101000)2
126. Decimal equivalent of (111011)2 is (59)10
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127. Mark correct statement:a) And has logic of ‘1’ when both of input
have logic ‘1’b) And has logic of ‘1’ when both of input have
logic ‘0’c) And has logic of ‘0’ when both of input have
logic ‘1’
128. Mark the correct statement:a) ‘OR’ gate has logic of ‘1’ when either
input in oneb) ‘OR’ gate has logic of ‘1’ when input is ‘zero’
129. Machine level language is:a) Low level languageb) High level languagec) Not exist
130. Analog computer is:a) Less accurate than digital computerb) More accuratec) Some accuracy as digital
131. Volatile memory of computer is:a) Floppy diskb) Hard diskc) Compact diskd) Which is not saved & destroyed after
power supply is off
132. In altimeter:a) 2 aneroid below are usedb) 3 aneroid below are usedc) Have barometric pressure setting scaled) All
133. In pitot static system, static pressure is measured at two points on either side of fuselage for:a) Preventing position errorb) Formation of ice (reducing)c) Both (a) & (b)
134. A gyro having freedom of rotation in all three direction is:a) Space gyro or free gyrob) Tied gyroc) Space & rate gyro
135. Tied gyro is:a) It has freedom in two directionb) It has freedom in three direction &
controlled by an external sourcec) It has freedom in three directiond) It has freedom in three dimension &
controlled by gravity
136. Peening is:a) Clogging of file teethb) Stretching of metal by hammering
137. In an enclosed area, in pressure of moisture sparking will produce:
a) Ozoneb) Hydrochloric acidc) Sulphuric acidd) Nitric acid
138. In basic computing system always use:a) One entry and two exit pointb) Two entry and one exit pointc) One entry & one exit pointd) Any no. of entry & exit point
139. Most common method of marking on stressed a/c structure:a) Electrogravingb) Vibratory percursionc) Metal stampingd) Etching or electro chemical method
140. Mark the correct statement:a) There is marking on shank of boltb) Swaged terminal are formed by rollingc) In case of large nut there in a marking on a
mating partd) a/c parts are marked by clectrotoning
method
141. Mark the correct statement:a) In brinnel hardness testing dia of
impression is a measure of metals hardness while in rockwell testing depth of impression is measured
b) In both, dia of impression is measuredc) In both, depth of impression is measured
142. Mark the correct statement:a) On a certain crystals, when voltage is
applied then mechanical stress is inducedb) When stress is applied then electric field is
generatedc) When round wave is applied to cyrstal the
a/c is generationd) All
143. If the driver gear has 60 teeth and it is moving with a speed at 40, what will be the speed of driver gear if it has 20 teeth:a) 100b) 120c) 60d) None
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PAPER-II JUNE 2005
1. Lift is dac to1) Pr-droop on upper surface of wing2) Pr-droop on lower surface of wing3) Velocity increase at lower surface of wing
2. Aspect ratio1) Spane/Mean chord2) Span2/mean chord3) Span/area2
4) Span/area
3. If transfarmation ratio is 1:2 of on step up transformers then what about the secondary current:
1) current will double of original (primary current)2) current will be half of original3) no change in current4) current becomes one third
4. Purpose of vertex generator:1) High speed characteristic of wing2) Low speed characteristic of tail surface3) Both 1 & 24) Vertex generator is not used on tail surface
5. Ventral fin is used for which stability:1) Longitudinal stability2) Directional stability3) Lateral stability4) Both 2 & 3
6. If power = 28 watt, cmf = 28 volt what is R,1) 28Ω2) 30Ω3) 29Ω4) 1
7. Marks the correct statement:a) Tuagsten is a type of thermionic emitterb) Thoxiated tungsten is an indirectly heated cathodec) Oxide coated has less work function than
tungestern or thoriated tungstend) Both (a) & (c) are correct
8. Current transformers is:a) step upb) step downc) Transformeation ratio is unit
9. Mark the correct statement:a) Transformer works on mutual induction principleb) It has eddy current & Cu losses while operationc) Transformer cores are laminatedd) All
10. Laminated core of transformers provides:a) Low reluctance path to magnetic fieldb) Low reluctance path to A.C. fieldc) High reluctance path to Magnetic fieldd) High reluctance path to A.C. field
11. Diode conducts when it is Reverse biaseda) Zener diodeb) PN Diode
c) Act as voltage regulator
12. Mark the correct statement:a) Algorithm is set of program in a particular
sequenceb) Pictoral representation of Algorithm is flow chartc) As in 2 & 3 flowchart makes the problem easierd) All
13. Microprocessor at least consist of:a) CPUb) ALUc) Memoryd) All
14. Which of the gate represent parallel switch circuit:a) ANDb) NANDc) OR
15. Series DC Generator has emf. At no load is:a) Maximum of rated voltageb) Minimum of rated voltagec) Maximum of rated voltage IR dropd) No induced emf.
16. Long shunted compound wound generator has:a) Shunt field across both armeture & revies fieldb) Series field across both armeture & revies fieldc) Shunt field across armature only
17. Self excited generator has:a) Permanent generatorb) Scparate DC sourcec) Electromagnetic coil which is magnetized by
machines current itselfd) All
18. Inter poles magnet or generator:a) has same poles as the previous one main poleb) has same poles as the incoming one main polec) as in (b) are connected inseries with armature
coil
19. Polar inductor magneto:a) all magnet, coil & rotor are fixedb) magnet rotates and coil & soft iron core are fixedc) magnet & coil are stationary & rotor rotates
20. The range marking an instrument is in accordance with:
a) manufacturer of instrumentb) type certificated data sheet (TCDS)c) TCDS & maint. & flight manual
21. Bareol tester is used for:a) steelb) cu, Al & others softer material
22. Color coding of O-ring gives:a) sizeb) shapec) fluid & vapour capability
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23. Bunas rubber is used for:a) tyre & tubeb) oil pipe & fuel pipec) hy. Fluid pipe
24. Neoprene is non compatable for:a) weathersb) aeromatic fuelc) non-aeromatic fueld) neptha
25. Toluo is used:a) for thinner of paintb) for thinner of Zn chromatic primersc) a thinner for dope filmd) both (a) & (b)
26. Jo bolt is:a) internally threaded 2 pieces rivetb) externally threaded 2 pieces rivetc) internally threaded 3 pieces rivetd) externally threaded 3 pieces rivet
27. Hi-Tigue interference fit is used:a) in fatigue strength structureb) any straight shank fastner can be usedc) both (a) & (b)d) none
28. Hi-tigue has:a) interference fitb) chamfered fitc) reacesed hole
29. Bolt used to join terminal fitting to cable is:a) elevis boltb) hex headc) close tolerance
30. 18-8 steel is:a) 18% cr & 8% Ni C.R.S.b) carbon steel 18% cr & 8% Ni.c) Both (a) & (b)
31. Which cable is more resistance to fatigue:a) galvanized steel cableb) stainless steel cablec) carbon steel cable
32. Tang of drill:a) found on tapered shank drillb) assist in removing the shank from socketc) both (a) & (b)
33. Regarding margin of a drill mark the correct statement:
a) margin to a drill prevent binding of drill during drilling
b) is a difference between inner & outer diac) is a difference between helix angle & flute angled) both (a) & (b)
34. Trueness of surface plate is checked by:a) DTIb) Surface gauge
c) Micrometer
35. Color of O2 & C2H2 hoses are:a) black & redb) red & blackc) white & redd) black & blue
36. Hoses have resisable fitting it consist:a) socket, sleeve & nutb) socket, nut & nipplec) clamp, nut & nippled) clamp, sleeve & nut
37. In x-ray depth of penetration depends upon:a) powerb) time of applicationc) thickness of specimen
38. Power factor is:a) true power (KWT apparent power (KVA)b) cosine of phase anglec) both (a) & (b)d) app. Power/true power & line of phase angle
39. Active component of current is:a) watt full elementb) watt less elementc) idled) both (a) & (b)
40. Excessive tightness of clamp on hoses cause:a) cold flowb) hot flow
41. Landing gear wheel alignment is done by:a) torque linkb) shock strutc) drag braced) all
42. Needle bearing is:a) radial typeb) axial typec) as in (a) & used where oscillatory motion is
necessary rather than rotaryd) as in (b) rather than rotary
43. Size of tube is an wall clutch numbers:a) out side dia in 1/16” incrementb) inside dia in 1/16” incrementc) outside dia in 1/32” incrementd) inside dia in 1/32” increment
44. Fatigue stress over a man caused by:a) emotional stressb) noise over 80 dbc) continuous workd) all
45. Exfoliation corrosion is:a) extensive case of intergranual corrosionb) formed at the grain boundaries & repartees the
layer of metalc) cleaned by mechanical means
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d) both (a) & (b)
46. 2017 rivets are:a) heat treatable before drivenb) heat treatable after drivenc) non heat treatable
47. Tensile cable is:a) Alb) Stainless steelc) Nickel coated Cu or Ald) Timed Cu
48. Angle of achme thread is:a) 60ºb) 45ºc) 29ºd) 37º
49. Mark the correct statement:a) roll causes yaw & veer the a/cb) yaw cause roll & veer the a/cc) roll causes yaw & yaw caused rolld) none
50. Identification on hoses:a) geometric symbolsb) masks made up of C.C. (color code)c) wordd) all
51. Which view is used to show the location of object at an angle to plane:
a) sectional viewb) plan viewc) elevationd) auxiliary view
52. Avgas 100LL has color:a) dyed blueb) dyed redc) green
53. Additives are added to:a) prevent microbiological growthb) to act as antifreezec) to avoid detorationd) both (a) & (b)
54. When securing steel bolt in soft alloys:a) zinc coating is usedb) chromium coatingc) cadmium platingd) Ni-plating
55. Corrosion on Mg is cleaned by:a) HCI Sotb) Sulphuric acid sotc) 10% wt. by of chromic acid + 0.1% H2SO4
56. What is difference between Al oxide & iron oxide:a) iron oxide is porousb) Al oxide is porousc) Al oxide is non porous
d) As in (c) it prevent further corrosion once formed
57. Interior cleaning of a/c is done by:a) detergent & soapb) phosphoric acidc) vacuum cleanerd) all are correct
58. Temperature inside furnace is measured by:a) pyrometerb) thermocouplesc) thesnmeter
59. In a parallel inductor, capacitor resonance circuit:a) no current flowb) maximum current flowc) have low resistance
60. Mark the correct statement:a) Rhcostat has three terminalb) Potentiometer has three terminalc) As in (b) & has low resistance valued) Rchostat has two terminals & has low
resistance
61. In which type of soldering localized heating is used:a) Resistance Brazingb) Induction brazingc) Furnace brazing
62. Flux used for soft soldering:a) To prevent effect of oxidationb) To remove oxidec) To increase strengthd) All
63. Ultrasonic soldering equation is used for:a) Feb) Alc) Honeycomb
64. In tail wheel A/c when nose is in the direction of wind:
a) Elevator is fully unpackedb) Elevator is fully downlockedc) Elevator is fully neutral positiond) 2” or 3” from neutral
65. Part of thread joining two adjacent blank at bottom of groove:
a) Flankb) Rootc) Depthd) Pitch
66. Scratches at high stressed skin can cause:a) crack at high speedb) starting point of corrosion at high speedc) causes filliform corrosiond) all
67. A gyro having freedom of rotation in all three direction is:
a) Space Gyro or free Gyro
- 60 -
b) Tied Gyroc) Space Gyrod) Rate Gyro
68. Mark alloying element of 2024 isa) Nickelb) Copperc) Silverd) Magnesium
69. Mark the correct statementa) AND has logic of ‘1’ when both L/P have logic
‘1’b) AND has logic of ‘1’ when both L/P have logic ‘0’c) OR has logic of ‘1’ when both L/P have logic ‘1’
70. In an enclosed area in pr of moisture sparking will produce
a) Ozoneb) HCl acidc) H2SO4 acidd) HNO3 acid
71. Most common method of marking on stressed A/C structure
a) Electro engravingb) Metal stampingc) Acid etchingd) Electrochemical method
72. Mark the correct statementa) There is marking on shank of boltb) Swaged terminals ate for sed by rollingc) Increase of large nut there is marking on mating
partsd) A/C parts can be marked by electro etching.
73. When the length of heater is reduce what about wattage rating:
a) Increasesb) Decreasesc) Remain same
74. In Ni-Cd Battery electrolyte spillited in eyes what should be used:
a) Baking sodab) Water dilute solution of Boric acidc) Plenty of water
75. Modulus of elasticity:a) Stress/Strain within elastic limitb) Stress/Strain above elastic limitc) Strain/Stress within elastic limitd) Strain/Stress above elastic limit
76. In a cell potential difference is the difference between on of electrode of cell to:
a) other electrode of cellb) Zinc platec) Carbon plate
77. Color of Zinc coated rivet:a) Yellowb) Silvery grayc) Pearl gray
d) None
78. In a variable delivery pump i.e. Hydraulic pump:a) Provides a fixed amount of fluid at certain foot per
revolution regardless of pressure:b) Is used to provide different amount of fluid as per
demand of pressurec) As in 2 and out valve will automatically
compensated for variable delivery of fluid
79. A riveted joint will subject of the:a) Tension loadb) Shear loadc) Bending loadd) Load
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PAPER II(OCT’05)1. Chematic diagram drawing is
a) location of component are not indicated
b) component are indicatedc) components are located within
the systemd) components location in a/c
2. Which material is slightly magnetic & rapidly react with concentrated nitric acid with greenish blue colour?a) carbon steel b) 18-8c) pure nickeld) monel
3. Size of flexible hose determined by a) inside dia in 1/16” incrementb) outside dia in 1/16” incrementc) inside dia in 1/32” incrementd) outside dia in 1/32 increment
4. Fuel lines identified by a) red colourb) blue colourc) green colour
5. Bolt with single raised dasha) AN corrosion resistant steelb) AN standard steelc) Aluminium alloy
6. AN 640 indicates a) bolt head and shank is drilledb) bolt with 10/32” diac) bolt shank is drilled
7. AN 121110 indicates a) bolt with 6/8 dia & head is drilled
8. Which washer is used when a bolt is installed at an angle to a surface or where perfect alignment with surface or where perfect alignment with surface is requireda) ball socket & seat washerb) lock washerc) plain washer
9. Which is used to tighten the Nut & Bolt where torque is critical a) precision toolb) hox wrench
c) spanner wrenchd) torque wrench
10. Bolt with asterisk mark made of a) AN corrosion resistant steelb) AN standard steelc) Aluminium alloy
11. Which is difficult to soldera) Aluminium and its alloyb) Mg and its alloyc) Steel and its alloyd) Nickel
12. AN 170 AD 3-5a) round head rivet made of 2117 Al
alloyb) universal head rivet made 2117
Al alloyc) universal head rivet made 2017 alloy
13. Which packing is effective in both direction in terms of pressure and back up is a) ‘O’ ringb) ‘W’ ringc) ‘V’ ring
14. Which chemical treatment converts surface of iron and steel parts to non metallic coil or absorptive , phosphade a) parco-lubrizingb) anodizing
15. Tempering is done in steela) to rlieve internal stressesb) to reduce brilleness and ductilityc) to increase strength and ductilityd) to barden
16. Which process is used to produce hard wear resistant surface or case cover strong & tough corea) case hardeningb) temperingc) normalizing
17. Mark the correct statementa) cold water ensure minimum
corrosion resistanceb) hot water minimize distortion &
alleviates crack- 62 -
18. Lag between soaking and quenching causesa) precipitations from solid solution
19. To improve tensile strength, ductility and shock resistance of Mga) solution heat treatedb) precipitation heat treatedc) full annealing is done
20. which is used to check the hardness of all alloy Cu, Brassa) Barcol tester b) Rock well hardness testerc) Brinell hardness tester
21. Resistance of conductor doesn’t depend upona) material b) lengthc) shape of cross-section
22. M.M.F. is measured ina) Gilbert Symbol ‘F’b) Maxwell symbol ‘F’c) Weber
23. Which method is used to rapidly charge the batterya) constant voltage & varying
current methodb) constant current & varying voltagec) varying voltage & varying current
24. Negative plate of Ni-cd battery made of a) Metalic cdb) Cd hydroxidec) Ni hydroxided) Nickle
25. What is frequency in 4 pole generator, conductor is turning at 1500 rpma) 60 cpsb) 50 cpsc) 120 cps
26. What is total inductance of three inductors of 2.3.4 henrya) 1.9 (series)b) 0.9 (parallel)
27. In circuit when capacitive reactance is equal to inductive reactancea) resonantb) phase in
28. Ionization potential of gas diode depends upona) plate current b) cathode constructionc) size of tubed) type of pressure of gas
29. With gate open, SCR conducts when applied voltage a) peak inverse voltageb) break over voltagec) cutt off voltage
30. The minimum no. of diode in half wave rectifiera) 1b) 2c) 3d) 4
31. To prevent generator from motoringa) reverse current cut out relayb) voltage regulatorc) circuit breaker
32. The purpose of equalizing circuita) to lower voltage of high
generator and raise voltage of low generator
b) to raise voltage of high generation and lower voltage of low generation
33. In which line current equal to phase currenta) Delta connected Alternatorb) Star connected Alternatorc) Three phase Alternator
34. Series D.C. motora) Poor voltage reputationb) Firld winding made of few turn of
heavy wirec) High starting Torque (principal
advantage)d) Both (a) & (b)
- 63 -
35. Which ATA code indicate hydraulic power, Fire protection, pneumatic enginea) 29, 26, 36, 77b) 25, 26, 36, 77c) 29, 28, 36, 77
36. In PMI Nickel plated surface doesn’t give indication of:a) flawb) fine discontinuitiesc) Ferrous parts onlyd) Both ferrous & non ferrous parts
37. In oil & chalk process, defect is indicated as:a) dark gray line with light gray
backgroundb) light gray line with dark gray
backgroundc) white line in green background
38. In Radiography ‘X’ ray equipment are graded according:a) voltage rangeb) frequency rangec) ampere range
39. Which process reveals (surface defects) subsurface defect, subsurface defect, water in honey comb material:a) Dye penetrant Processb) M.P.I.c) Radiography
40. Small a/c tied down:a) alter each flightb) every heightc) before storm
41. Which extinguisher is best for electrical fire?a) CO2
b) Dry chemicalc) Waterd) Cd4
42. In swept wing a/c de fueling procedure starts from:a) outboard wing tank firstb) inboard wing tank first
43. In pressure fueling:a) Pressure of fuel pump must be at
min. filter pr.b) Pressure must be correct for
refueling system
44. Bottle jack is used for:a) single wheel or all wheel of single
unitb) single wheelc) single brake unit
45. Which is equivalent to 4 bit:a) Nibbleb) Bytec) K.B. (Kilo Byte)
46. Modem is:a) Input/output peripheralb) Hardwarec) Softwared) Operating system
47. Which decimal no. is equivalent to (110.001)2
a) 6.25b) 6.125c) 6.50
48. Which is responsible for high lift capacity of Glider:a) high aspect ratiob) symmetrical wingc) Thickness/chord
49. When tail wheel a/c facing in wind:a) elevator should be fully upb) elevator should be fully downc) elevator should be in neutral position
50. Angle of attack:a) Is acute angle between longitudinal
axis of a/c & chord of wing direction.b) Is horizontal angle between direction
wind & plane of symmetry of a/cc) Is acute angle between chord of
airfoil and direction of wind
51. Aspect ratio:a) span/mean chordb) span/cross sectional areac) chord/spand) area/span
- 64 -
52. Primary control surfaces are:a) aileron, rudder, elevatorb) aileron, rudder, elevator, L.E. flapc) aileron, rudder, elevator, T.E. flap
53. In four stroke engine five events are:a) intake, compression, ignition,
power, exhaustb) intake, compression, exhaust power.c) intake, power, exhaust, compression.
54. Which welding process uses consumable electrode:a) TIGb) MIGc) Plasma are welding
55. Which hammer used in narrow place:a) Ball peen hammerb) Cross peen hammerc) Hide hammerd) Plastic head hammer
56. Which one give smoother surface:a) single cutb) double cutc) second cutd) smooth cut
57. When using hacksaw blade in which direction it gives better result:a) forward strokeb) backward strokec) fined) coarse
58. What is the position of adjustment screw in fine adjustment:a) upper positionb) lower positionc) neutral positiond) central position
59. Which is used to mark rivet holes when using original template to lay out a skin pattern on the new surface is:a) center punchb) prick punchc) transfer punch
60. Which is used to clean clogged male threaded fastener:a) die nutb) tapc) two part adjustable die
61. Taper tap is used in tapping procedure during starting the tap used for starting operation:a) Taper tapb) Plug tapc) Bottoming tap
62. Which screw driver is used during verneal space limitation:a) off-set screw driverb) stubby screw driverc) simple screw driver
63. If 1 cm. of main scale is divided in 20 equal part, 24 division of main scale is equal to 25 division of vernier scale. Least count is:a) 0.0002 mm.b) 0.002 cmc) 0.02 inchesd) 2 cm
64. Which thread gives/takes great strength/load in one direction:a) buttress threadb) square thread
65. ‘V’ block is used to:a) to hold cylindrical objectb) to hold square object
66. Which one is in increasing order to strength:a) 2S, 24ST, 17ST, A17STb) 2S, A17ST, 24ST, 17STc) 2S, A17ST, 17ST, 24STd) 2S, 17ST, A17ST, 24ST
67. In flexible hose, slack is given:a) 2 to 3% of total lengthb) 5 to 8% of total lengthc) 3 to 9% of total lengthd) 10% of total length
68. Which has greater tensile strength & lower compressive strength:a) carbon
- 65 -
b) graphitec) borond) aramid
69. Mark the correct statement:a) turbo fan engine require lesser
runway length for take off than jet engine.
b) Jet engine, at higher altitude is efficient in comparison with piston engine
c) Jet engine has more weight to get equivalent power
d) Turbo jet engine requires longer runway.
70. Modern digital computer consist of:a) Central processor (CPU)
input/output deviceb) Hardwarec) Software
71. Speed of motor increases when load decreases current decrease because of:a) frictional loss between motor’s
moving partb) frictional loss between winding &
other partsc) induced back emf increases
72. Jo bolt is:a) externally threaded two piece rivetb) externally threaded three piece rivetc) internally thread three piece
rivet
73. For parallel A.C. generators:a) voltage, phase equalb) phase, frequency samec) voltage, frequency phase
74. Quantity & quality of X-ray depends on:a) intensity and penetrating power
of x-rayb) frequency & penetrating powerc) frequency & intensity of x-ray
75. 7075-0 indicates:a) normalizingb) annealedc) hardened & tempered
76. Gasoline having octane no. more than 100 indicated by:a) octane no.b) performance no.
77. Which is used to form rivet head:a) snap and dollyb) hammer and punchc) punch & plierd) rivet & bucking bar
78. De-magnetization is done in megnaflux method, after magnetization:a) By slowly moving parts out of
magnetic field demagnetize the part after magnetic flow inspection by
b) The parts are demagnetize by passing D.C.
c) By flowing A.C. through the part and the part is immediately taken out of the electromagnetic field
79. A bolt should be installed (with load):a) Upward & downwardb) Upward & forwardc) Downward and forwardd) Downward and rearward
80. Ventral fin is used for:a) Directional stabilityb) Longitudinal stabilityc) Lateral stabilityd) Both (b) & (c) are correct
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PAPER-II FEBURARY 2006
1. Small aircraft should be tied downa) After each flightb) Every flightc) Before storm
2. Which extinguisher is best for electrical fire:a) CO2
b) Dry chemicalc) Water
3. In pressure fuelinga) Pressure of fuel pump must be at
minimum filter pressureb) Pressure must be correct for refueling
system
4. Bottle jack is used for:a) Single wheel or all wheel of single unitb) Single wheelc) Single brake unit
5. When tail whell A/C is facing in wind:a) Elevator should be fully uplockedb) Elevator should be fully downlockedc) Elevator should be in neutral position
6. ‘V’ block is used to:a) to hold cylindrical objectb) to hold square object
7. Lift is due to:a) Pressure drop on upper surface of
wingb) Pressure drop on lower surface of wingc) Velocity increase at lower surface of wing
8. Which of the following gate represent parallel switch circuit:
a) ANDb) NANDc) OR
9. Long shunted compound wound generator has:
a) Shunt field across both armature and series field
b) Series field across both armature and series field
c) Shunt field across armature only
10. Neoprene is non-compatible to:a) weather
b) non-aromatic fuelc) aromatic fueld) naphtha
11. High-tigue has:a) chambered fitb) reamed fitc) interference fit
12. 18-8 steel is:a) 8% chromium and 18% Nickelb) 18% chromium and 8% Nickel
13. Regarding margin of drill, mark the correct statement:
a) Margin to a drill prevent binding of drill during drilling deep holes
b) Is a difference between inner and outer diameter
c) Is a difference between helix angle and flute angle
14. Main alloying element of 2024 is:a) Nickleb) Copperc) Magnesium
15. Modulus of Elasticity is the ratio of:a) Stress/Strain within elastic limitb) Stress/Strain above elastic limitc) Strain/Stress within elastic limit
16. Mark the correct statement:a) Phcostat has three terminalb) Potentiometer has three terminal and has
low resistance valuec) Phcostat has two terminal and has low
resistance
17. Interior cleaning of aircraft is done by:a) Detergent and soapb) Phosphoric acidc) Vacuum cleaner
18. Best suited for checking discontinuity is:a) ammeterb) ohmmeterc) bonding tester
19. If an alternator has 4 poles and 1800 rpm frequency is:
a) 60 cpsb) 120 cpsc) 100 cps
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20. In an inductor circuit, current:a) lag voltage by pie/2b) lead voltage by pie/2c) not affected
21. Charge stored in capacitor varies:a) directly with area and voltagesb) directly with area and distance between
platesc) directly with distance between plates
22. For full power, full wave rectification:a) Two diode are usedb) 4 diodes are usedc) either 2 or 4 diodes can be used
23. Flux is useda) Increase conduction of heatb) To reduce strengthc) To prevent effect of oxidation
24. Aluminum is welded usinga) neutral or slightly carburizingb) oxidizingc) neutral
25. In reciprocating Engine, engine fires at:a) every revolutionb) every second revolutionc) 360 revolution of crankshaft rotation
26. Centre of cylindrical and round shaft is found by:
a) combination setb) DTIc) Micrometer
27. Binary equivalent of (96) 10 is:a) 1010001b) 1100001c) 1100000
28. A gear in which teeth is cut parallel to axis of rotation:
a) spurb) helical
29. Mark the correct statement:a) transistor conducts when EB forward
biasedb) transistor conducts when CB reversed
biasedc) both (a) & (b) are correct
30. For constant voltage, generation used is:a) seriesb) shuntc) differential compound
31. Series pitch gage can check:a) No. of threads per inchb) Pitch dia and No. of threads per inch
32. The process capacity of a computer is designed by:
a) MHzb) KHzc) RAM capacity
33. Mark the correct statement regarding monel:
a) it cannot be hardened by heat treatment
b) it can be hardened by heat treatment
34. Dye penetrant inspection is applicable to:a) ferrous alloyb) non-ferrous alloyc) non-porous materiald) all
35. Alcladding meansa) to roll a pure Al- sheet over Al-alloyb) Al-alloy over pure at sheet
36. The dimensional inspection of a bearing in rocker arm can be accomplished by:
a) depth gage and micrometerb) telescoping gage ands micrometerc) thickness gage and push-fit arbor
37. Ballast is used to balance the a/c:a) located as near as to C.G.b) is minimum weight and placed as far as
form C.G.c) preferable permanent ballast
38. Electrolyte use in Ni-Cd batterya) KOHb) Dilute H2SO4
c) Sodium hydroxide
39. Transistor is used as:a) remote control switchb) electrical fusec) transformer
40. S.A.E. 4130 is:
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a) nickelb) molybdenumc) chromium
41. In TA-100 systems, 27 represents:a) fire protectionb) flight controlc) pneumatic system
42. When installing batterya) put hot lead firstb) put negative lead firstc) both negative and positive lead
43. Brass is composed of:a) copper and tinb) copper and zincc) bronze and zinc
44. Anodizing is:a) electrolytic treatmentb) simple chemical treatment
45. If p.f is 0.6 it means:a) ratio of wattles to wattful component is 0.6b) active power is 0.6c) reactive power is 0.6
46. Which switch is used for short durationa) toggle typeb) push button switchc) time switch
47. Which surface treatment requires zinc for plating:
a) galvanizingb) alodizingc) anodizing
48. Which torque wrench require rack and pinion mechanism:\
a) toggle typeb) torsion barc) deflecting beam type
49. Mark the correct statement:a) 2 nibble is equal to 1 byteb) 1 bit is equal to 4 bytec) all are wrong
50. Al-alloy is used for plumbing, because of:a) weight advantageb) temperature compensation
51. Mark the correct statement:a) normalizing relieves stresses build-up
during weldingb) in normalizing metals must be furnace
cooled
52. In R.L.C. circuit:a) p.f. is more if XI < Xcb) p.f. is more if R < Xcc) p.f. is more if Xc < Xl
53. Difference between soldering and brazing depends upon:
a) temperatureb) material thicknessc) torch tip
54. Mark the correct statement:a) bicarbonate if soda for lead-acid and
boric acid for Ni-Cd batteryb) bicarbonate if soda for Ni-Cd battery and
boric acid for lead acid battery
55. RAM (Random Access Memory) is:a) non-volatile semi-conductor memoryb) read/write volatile semi-conductor memory
56. Galvanometer is transfired to ammeter:a) by connecting low resistance in series to
galvanometerb) by connecting low resistance in parallel
to galvanometer to increase range
57. Close tolerance bolt is used:a) in application where pounding is requiredb) where structure required bolting or rivetingc) both (a) & (b)
58. Mark the correct statement:a) working drawing must give such
information as size of object and all is parts.
b) Detail drawing is a description if an object made of a object made of 2 or more part
c) Assembly drawing is a description of an object made up of single part
59. Teflon hose:a) unaffected by any known fuel and other
solventsb) its disadvantage is to operating strength
60. Conducts are used with the cable, they are made up of:
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a) aluminium alloy or stainless steelb) teflonc) nickel
61. Which types of nuts are used with standard and sheet metal self-tapping screw in non structural locations:
a) sheet spring nutb) castle nutc) wing nut
62. Which type of nut is used where the desired tightness can be obtained with the fingers and where the assembly is frequently removed:
a) castellated nutb) plain hex nutc) wing nut
63. Which of the following rivet has no marking on its head:
a) Bb) Fc) M
64. Intergranular corrosion:a) it is an attack along grain boundariesb) very severe cases, may cause the surface
of metal to exfoliatec) it is caused by improper heat treatmentd) all
65. 1 milibar:a) 0.75 cmb) 0.75 inchc) 1.013 cm of Hg
66. When angle of attack of an airfoil increases:a) the center of pressure will move rearward
towards trailing edgeb) the center of pressure will move
forward towards its leading edge
67. Mark the correct statement:68. Which type of synchronous motor uses
servo systems:a) single phaseb) two phasec) three phase
69. Field flashing, in brushes alternator is achieved by:
a) by using permanent magnetb) by increasing speedc) by increasing voltage
70. Galvanic corrosion takes place:a) when two dissimilar metals make
electrical contactb) corrosion is rapid when anodic metal is
larger than that of cathodic metal
71. Mark the correct statement:a) alodizing is a simple chemical
treatment for all aluminum alloys to increase their
b) corrosion resistance and to improve their paint bonding qualties
72. Addendum means:a) portion of teeth that projects above or
outside of pitch circle.b) Portion that projects below the pitch circle
73. Lamination core of transformer provide:a) low reductance for magnetic flux
74. Electro meter bearing is:a) rubber or plastic layer in between bondb) rubber layer in between bondc) continue bonding or electricity
75. Defect is surface & subsurface:a) ultra sonicb) eddy current
76. Welding tip is selected on the:a) thickness or the metal
77. Synchronization alternator:a) two or more alternator to the some they
must have same phase sequence as well as equal voltage and frequency
78. Two primary cell or nvb and capacity 60 connected in parallel:
a) V = 24V cap. 60b) V = 12V cap. 120c) V = 12V cap. 60
79. In flurescent method defect:a) under black light brilliant green yellow
colour
80. When torqueing bolt and nut the bolt head is tightened:
a) increasing the torque valueb) decreasing the torque valuec) another method is used
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81. Zinc primer give:a) corrosion resistance surface and base
provide
82. Honeycomb has:a) high strength to wt ratio
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PAPER II (JUNE-06)
1. Flaps increases the effective lift of an airfoil by a) increasing comber of the airfoilb) reducing profile dragc) shifting drag to the rear of centre of pressured) increasing angle of attack
2. Co-efficient of lift depends on a) angle of attack & wing area
3. Advantage of dihedral winga) to provide lateral stability
4. Mach is a) True air speed/velocity of sound
5. Fig Indicate (W.SHOP 48,FAA 533)a) combination wrench
6. Fig indicate (W.SHOP 60)a) adjustable hook spanner wrench
7. In fig of file a,b,c indicate (FAA 536)a) heel , face , edge
8. Fig indicate (FAA 533)a) extension bar
9. Why triangular file use a) refer FAA 9A 537)
10. In fig of drill this indicate a) flute
11. MTCSa) barrel & anvil is fixed part & thimble is movable
partb) spindle is fixed part & anvil is movable c) none
12. Fig of tap indicatea) this is use to begin the tapping processb) it supplements the taper tap for tapping holes in thick
stockc) both
13. The size of flat cold chisel is determined by the a) width of cutting edgeb) length of cutting edgec) none
14. Fig of punch indicate (FAA 9A 531)a) prick punch
15. The galvanometer is converted into voltmeter by a) by connecting high resistance in seriesb) by connecting high resistance in parallelc) connecting shunt in parallel
16. In dye fluorescent inspection defect occursa) brilliants yellow greenb) black in white lightc) white lime
17. Hydraulic fluid hoses are identified by a) Yellow & Blue colorsb) black colorc) red color
18. To improve tensile strength ductility and shock resistance of Mg.a) solution heat treatedb) precipitation heat treatmentc) full annealing
19. Resistance of conductor doesn’t depend upon a) materialb) lengthc) shape of cross-section
20. Speed of motor increases when load decreases current decreases because of a) frictional less between motors moving partb) frictional loss between winding & other partc) induced back emf increases
21. Barcol tester is used fora) Alb) Steelc) Al. & Cud) all
22. Capacitance is measured in a) farad & affected with plate areab) microfarad & with dielectric strength of mediumc) picofarad & affected with distance between plated) all
23. MTCSa) if addendum & no. of teeth is given then product of
these two will give pitch dia b) –c) –d) –
24. SCR (silicon control rectifier) hasa) two junctions b) three junctionsc) two forward & two reversed
25. Stress corrosion is likely to occurs in a) Al b) Mg c) Al & stainless steel
26. (11.75)2 equivalenta) 1011.11b) 1011.01c) 1101.11d) 1101.10
27. Universal gates are a) NAND & NORb) NOR c) NOT
28. MTCSa) magnetic force always acts on charged particleb) magnetic force never acts on charged particle c) none
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29. Capacitance of a capacitor is directly proportional to a) plate area & distance between platesb) plate area & inversely proportional to distance
between the plates
30. Computer is working on a) decimal sysb) binary sysc) hexagonal
31. Identify the drawing symbols given below
a) automatic reset, push reset, push reset, pull offb) automatic C.B., push CB, push – pull C.B.c) normal C.B., pull-pull C.B., push C.B.d) none
32. PN junction is not used a a) rectifier b) light radiationc) light intensityd) transformer
33. MTCS (In accordance with figure)a) radial load, thrust loadb) thrust load, radial load
34. check instrument surface condition of cylinders & surface ; instrument used to a) boroscopeb) fibroscopec) endoscope & introscoped) all
35. Radiography depends on a) size & shapeb) x-rayc) thickness d) all
36. Bevel gears used for a) transmission of load between shaft at angles to each
otherb) for variation of speedc) in speed reducersd) all
37. Coating of Al-alloy by a layer of pure Al is called a) Alcladb) Pure cladc) Both
38. Memory of computer are a) ROM, CPU, ALCb) RAM , RAM , PROMc) ALC, ROM, RAMd) NONE
39. Mg is a) has tendency to crackb) resistance to corrosionc) both a & b
40. If mechanical stresses applied to a quartei crystal thin voltage is induced by
a) peizo electric effectb) as in a & frequency depends on thicknessc) both a & b
41. MTCSa) brinell hardness tester uses dia of ballb) lesser the rockwall no. softer the materialc) greater the rockusell no. softer the material
42. Pure semiconductor showsa) infinite resistance at 00Cb) increase in resistance with increase in temperaturec) decrease in resistance with decrease in temp
43. Algorithma) consists of finite no. of steps and outputs are definiteb) consists of finite no. of steps c) none
44. PN-Junction in transistor has a) reverse biasedb) forward biasedc) none
45. Zenor diode is useda) to regulate voltageb) controls the spikesc) both
46. The strength of the electromagnet is determined by a) no. of turns of the coilb) strength of the magnetc) speed of rotation of the magnetd) all
47. Transformer is a devicea) used in transistor setb) transfer electrical energy from one circuit to other
without changing frequencyc) transfer electrical energy from one circuit to other by
changing frequencyd) both a & c
48. High carbon steel contains carbona) 0.50% - 1.05%b) 0.50% - 1.50%c) 1.50% - 2.2%
49. Identify the fig..a) A & C are fixed resistor of B and D are variable
resistorb) A & B are fixed resistor & C and D are fixed resistor
50. Identify the figa) AN standard boltb) Re-worked boltc) Al alloy boltd) Closed tolerance bolt
51. Identify the figa) anchor nut with double legb) anchor nut with single legc) anchor nut with corner legd) none
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52. MTCS (FAA 9A,135)a) Al alloy close tolerance bolt used with greaseb) Internal wrenching boltc) Clevis bolt
53. This bolt is a) internal wrenching boltb) clevis boltc) Al alloy close tolerance bolt
54. Turn buckle consist of a) brass barrel with left & right hand threadb) stainless steel barrel with either left hand or right hand
threadc) only Cadmium plated steel barrel and end fitting d) none
55. Fig showsa) hidden lineb) visible outlinesc) centre line d) none
56. For cleaning anodized surfacesa) aluminium Wire brushes useDb) steel wire brushc) chemical method
57. On lead acid battery compartment neutralize acid deposites we usea) Bi carbonate of sodab) Boric acidc) Vinegar
58. Heat treatment applicable to aluminium alloy isa) solution heat treatmentb) precipitation heat treatmentc) both a & b
59. Al alloys hardended by heat treatment about 4 to 5 days temp is calleda) Artificial agingb) Natural agingc) As in a & also called room temp agingd) None
60. Given fig. indicate(BL /1-14,13)a) surface binish
61. Given fig indicate a) insulated b) spot facing
62. Ammeter is a) connects across batteryb) connects across generatorc) is used for measuring charging & discharging of
battery
63. Annealing provides a) soft materialb) low strengthc) more difficultd) all
64.Figure of auto transformer
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PAPER II(OCT-06)
1. Backlash between gear teeth is measured by a) DTIb) Feeler gagec) Micrometer gage
2. Elevator is used to a) for later control b) rotate a/c around lateral axisc) stablish a/c about lateral axisd) both b & c
3. Which drag does not contribute lifta) induced dragb) paracite dragc) wave balance drag
4. Angle of incidence is defined as a) angle between longitudinal axis & relative
windb) angle between longitudinal axis &
chord linec) angle between chord line & relative wind
5. In steady & level flight, the dynamic pr. At the tip of the nose of the a/c is a) maximumb) minimumc) zerod) always more than static pr
6. Torque tube is a) act as rotating member in cable systemb) compression & tension both load can
withstandc) used alongwith bell crankd) convert rotory motion alongwith bell
crank
7. 7 x 19 strands withstanda) 7 strands of 19 wire eachb) 19 strands of 7 wire each
8. Corrosion on high stressed skin can be removed by
a) high Al. polishb) by wire brushc) buffing with fine buffing compound on
cloth bufferd) polish only
9. In an electrical ckt. If capacitance is 100 microfarad and charge is 10 micro coulomb, then voltage rating would be a) 100 vb) 10 vc) 1 vd) 1000 v
10. Given figure indicate a) splined shaftb) meshing gearc) gear & pinion
11. Given figure indicatea) double pole double throwb) double pole single throw switchc) single pole double throwd) push pull s/w
12. Given figure indicate a) cabinet fileb) half round filec) knife file
13. Given figure indicate a) buckling bar not field properlyb) excessive drivec) upset head
14. Schematic diagram indicatesa) does indicate individual components b) used in trouble shootingc) aid in installed position
15. Proper cause of intergranular corrosiona) improper heat treatmentb) improper weldingc) corrosion due to non-metal & metal contact
16. In 3Q a/c generator, if 8 pole & 1600 rpm is used then frequency will be a) 800 Hzb) 1600 Hzc) 400 Hzd) 1200 Hz
17. As per ATA code, hydraulic fluid, pneumatic, fire & engine indicating is a) 29, 26 , 36, 77b) 77, 29, 36, 29c) 29, 36, 26, 77
18. In workshop parallel bar is used to a) to raise the objectb) to raise the object one sidec) as in a & in parallel to the vise
19. If one wheel is to be jacked a) heavy jack is usedb) remaining wheel should be chockedc) wheel raised should be raised by 6 to 8.d) No chocking is reouised
20. Shunt a/c motor is used to drivea) landing gearb) gyro & servo motorc) tap
21. Ac motor is used in respect of DC motor a) advantage of AC motor over DC motorsb) less weightc) less maintenance & costd) brush & commutator is not used in AC
motor
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22. In transformer, the induced emf in secondary depends upona) number of turnsb) frequencyc) frequency & no. of turnsd) frequency, flux & no. of turns
23. Emf induced in generator depends upona) flux linkageb) flux cutc) magnetic field strengthd) rate of change of magnetic flux linkage
24. Meshing gear havinga) same pitch numberb) same sizec) same dedendum
25. Copper bar in 3Q motor is placed deep in stator coila) improve power factorb) high starting torque providedc) high efficiency is obtained
26. In semiconductor having resistancea) infinite resistance at OCb) finite resistance increases with tempc) finite resistance decreases with temp
27. Negative coefficient of resistancea) thermistorb) transistorc) insulator
28. Universal building block is a) OR gateb) NOR gatec) XOR gate
29. Steps in fuel tank is specified by a) low skeep, seep, heavy seepb) stane, low seep, heavy seep, running leakc) running leak, leak
30. Annealing in done for a) maximum ductilityb) softnessc) low strengthd) all of the above
31. Which is pure wrought alloya) cylinder headb) pistonc) cylinder barreld) Alclad
32. Damping in instrument mostly efficient done by a) fluid frictionb) airc) eddy currentd) both b & c
33. High resistance load in electrical circuit is checked by a) AVM meter in DC ohmb) DC battery with lampc) Magneto synchronizerd) Both b & c
34. Welding indicates a) V-weldb) U-weldc) Double beveld weldd) J weld
35. In bevel gear a) motion is transmitted at an angle to the
shaftb) as speed reducesc) take heavy loadd) both b & c
36. C.P. (Circular pitch) in gear is identified as a) distance between two adjacent teethb) distance between two adjacent teeth
along the pitch circle
37. Conductor having 4 resistance, sretched twice in length then new would be a) 4b) 8c) 16d) 12
38. In a inductor if no. of turns is increased & core length is doubled then self inductance of inductor would be a) doubledb) olladriplicatec) halfd) remain same
39. Mark the correct statementa) open end belt take more loadb) cross belt take more loadc) cross between is more efficient than C.P. end
belt
40. Which file is used for making slot & keywaysa) knife fileb) square filec) triangular file
41. Brazed welding is a) called bronze weldingb) base material does not fusec) it is special welding having between bracing
and welding operationd) both a and b
42. Aluminium is welded bya) oxidizing flameb) reducing c) neutral
43. In soldering over flow is avoided by
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a) clay material surrounded all the weld area
44. In Pb-acid battery spilled electrolyte is neutralized by a) sodium bicarbonate & waterb) as in a & ammoniac) vinegard) none
45. Titanium is heat treated to a) relief internal stressesb) annealing for further cold workingc) thermal hardening to improve strength d) all of the above
46. In commercial annealing, cooling is done in a) waterb) airc) mica
47. How can be dimensional inspection of a bearing in a rocker arm be accomplisheda) a rocker arm be accomplishedb) depth gage and micrometerc) thickness gage & push arbord) telescope gage & micrometer
48. In steel alloya) colour indicate alloy & stripe indicates
carbon contentb) colour indicate carbon content & strip
indicate alloy
49. If two battery A & B such that A having greater plate area than B, then internal resistance of A will be a) greater than Bb) smaller than Bc) coual to Bd) none
50. Mark correct statementsa) In nacelle it is measured from the front spar
of the wingb) Water line measure height in inches in
parallel to the horizontal planec) Butt line measures width from left to right
parallel to the vertical planed) All of the above
51. Color of 100 LL fuel is identified a) red bandb) black bandc) red band green stripd) black band yellow strip
52. Color of fuel line a) red colorb) black colorc) brown color
53. Jet fuel is susceptible to rust, dirt etc
a) water is found in either suspended or in dissolved form
b) if coloudiness is found in top but disappear at bottom, indicate air presence
c) microbial organism feeds on hydrocarbond) both a & c are correct
54. MTCSa) read & prince screwdriver having blunt pointb) Phillips screw driver having blunt pointc) Phillips s/d driver is bluntd) Phillips s/d driver is pointed
55. Kirchoff’s law applicable for a) A.C. circuitb) D.C. circuitc) Both A.C. and D.C. circuitd) Both A.C. and D.C. excluded capacitive &
inductive element.
56. Fatigue crack detected by a) ultrasonicb) magnetic particlec) eddy currentd) all of the above
57. In composite impact damage & water disband is inspected by a) thermal halographb) laser halographyc) ultrasonicd) x-ray
58. In composite, for maximum flexibility core material used is a) Honey combb) Plastic foamc) Resind) All of the above
59. In Rockwell testing measurea) resistance to penetrationb) measuring ball impressionc) depth of penetrationd) both a & c
60. Barcol tester is used for a) steel b) aluminiumc) b & copper
61. Poor welding caused due to a) excessive pressureb) misalignment of electrodec) both a & bd) excessive current
62. Small a/c is tie downa) after each flightb) as per atmospheric condition
63. In rigging & alignment check a) a/c must be leveled on jackb) always not needed for leveling
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c) cable tension is measured by control at neutral
d) all of the above
64. In rigging & alignment check a) a/c must be leveled on jackb) always not needed for levelingc) cable tension is measured by control at
neutrald) all of the above
65. Classification of computera) capacity & functionb) as per capacity & connectionc) as per capacity, function & connection
66. Capacitance of capacitor does not dependent upona) plate areab) plate separationc) plate thicknessd) di electric material
67. Gap between soaking & cooling causesa) Re-precipitation b) Strength increases
68. For thread making a) Die & tap is usedb) On lath machine producedc) On rotating machined) All of the above
69. P-N junction diode does not used in a) rectifierb) amplifierc) light detectiond) for light radiation
70. Main memory of computera) ROMb) RAMc) HARD DISKd) FLOPPY
71. For precision drive we usea) torque wrenchb) socket wrench
72. In micrometer, f zero of thimble is above the datum , then it is a) +ve zero errorb) –ve zero errorc) zero error
73. Given reading isa) 0.2750b) 0.27527c) 02758d) 0.2792
74. If drill size is not given on drill, then it can be found by a) drill gage
b) drill plate gage having fraction on left & number on right
75. In radiography, density defined asa) relative of two adjacent area brightnessb) degree of blackening of radiographc) both a & b
76. Resistance of conductor does not depend upon b) lengthc) shape of cross-sectiond) areae) temperature
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PAPER – II (FEB’07)
WORKSHOP TECHNOLOGY
1. In relation to workshop practices, the tool telescopic gage is used to:a) Take internal measurementsb) As in ‘a’ & can take measurements
accurately within the range of ½ “ to 6”c) As in ‘a’ & can take measurements
accurately within the range of ½ “ to 1”d) Both ‘a’ and ‘b’ are correct
2. Small hole gages are used to measure the dimension of:a) Small holesb) Grooves and slotsc) Outside dimensionsd) Both ‘a’ and ‘b’ are correct
3. Needle file is:a) Used by toolmakers, die makers and
watchmakersb) It is knurled on one end so that separate
handle is not neededc) As in ‘a’ and is knurled on both ends to
prevent slippaged) Both ‘a’ and ‘b’ are correct
4. Needle bearings are roller bearings which are used:a) In small and restricted areasb) Where motion is oscillatory rather than
rotaryc) For both axial and radial loadsd) All are correct
5. The greatest size drill amongst the following is:a) No. 1b) No. 30c) 3/16” d) ‘E’
6. Mark the correct statement:a) Straight fluted reamer has a less tendency
to chatterb) Bottoming reamer is tapered for a short
distance back of the end to aid in starting.c) Spiral fluted reamer is tapered for a
short distance back of the end to aid in starting
d) Spiral fluted reamer has a greater tendency to chatter
7. D.P. (diametrical pitch) of a gear gives:a) No. of teethb) Height of the gear teethc) Size of gear teethd) Both ‘a’ and ‘c’ are correct
8. The terms which are not associated with other types of gears but are only used in case of worm gears:a) Throat and throat radius
b) Throat diameterc) Pitch diameterd) Both ‘a’ and ‘b’ are correct
9. ½ — 13 NC— 3B indicates:a) Pitch diameter is ½ “b) 13 NC indicates 13 TPI of National formc) 3B indicates class 3 fit of external threadsd) All are correct
10. In a gear system, the driver and driven gears are on different shafts, to get the same direction of rotation:a) Bevel gears are usedb) One of the gears should have internal
teethc) As in ‘a’ and no mechanical advantage is
obtainedd) None of the above correct
11. The given figure indicates:a) Both take radial load onlyb) ‘A’ takes radial load and ‘B’ takes both
radial & thrust loadsc) Both take thrust load only
12. Least count of a micrometer is 0.01mm. reading on the sleeve is 0.5mm and 27th division is with the datum and it has an error of +0.005cm. find the reading:a) 0.077cmb) 0.072cmc) 0.72cm
13. Pitch of a micrometer is 1mm and thimble scale is divided into 100 divisions. If the reading on the main scale is 2mm. and 45th division of the thimble scale is inline with the datum. Find the least of the micrometer and the diameter of the wire from the above readings:a) 0.001cm and 0.245cmb) 0.01cm and 2.45cmc) 0.1mm and 0.245mm
14. Find the micrometer reading from the given diagram:a) 0.4699”b) 0.4699”c) 0.4692”
15. External threads are checked by:a) Roller and anvil type caliper gageb) Ring thread, gage is usedc) As in ‘a’ and ovality can also be checkedd) All are correct
A/C MATERIALS
16. Composite has the advantage of high strength and low weight, considering this property the composites are:a) Mud and strawb) Dope and fabricc) Fiber reinforced plastic (FRC) and Aramid
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d) All are correct
17. Hybrid means:a) Two types of fibers combined to increase
strength and reduce costb) Interply and intraply are the samec) As in ‘a’ and Carbon/Graphite blended
with Kevlar are used to substitute Boron fibers
d) All are correct
18. Corrosion from Magnesium surface is cleaned by:a) Steel wire brushb) Carbourandom abrasivec) Stiff hog bristle brushd) Steel burnishing tool
19. Mark the correct statement:a) Ceramic fibers are characterized by dazzling
white colourb) Ceramic fibers are used where high strength
is requiredc) Kevlar has tensile strength four times
of that of aluminumd) All are correct
20. Circular magnetization method used in MPI cannot detect which type of defect:a) Lateral cracksb) Longitudinal cracksc) Deep sub-surface flawsd) Torsional cracks on a shaft
21. Ultrasonic flaw detection technique is used to detect:a) Flaws and inclusions in cast metalb) Flaws or cracks in welded structurec) Delamination in bonded structured) All are correct
22. In Fluorescent penetrant inspection method the colour of defect and sound part is:a) Brilliant yellow-green and blue-violetb) Yellow-red and green-bluec) Black and whited) Both ‘a’ and ‘b’ are correct
23. The primary cause of inter granular corrosion is:a) Dissimilar metal contactb) Improper heat treatmentc) Due to non-metal and metal contactd) Due to corrosive gases
24. In Fluorescent penetrant inspection method the volume of defect is interpreted by:a) Staining speedb) Extent of stainingc) Rate of stainingd) Colour
25. In relation to radiographic method of inspection. Mark the correct statement:
a) Thicker the specimen, darker will be the image
b) Thicker the specimen, lighter will be the image
c) The darkness of the radiograph does not depend upon the radiation penetrating the specimen
d) None are correct
26. For lightening protection on the composite material:a) Magnesium plate is fixed on the top layer to
provide a conducting layerb) Aluminum is woven to provide a
conducting pathc) Metal plate is usedd) No lightening protection is needed for the
composite material
27. Weft threads are:a) At 45 degrees to warp threadsb) Perpendicular to warp threadsc) Along with the warp threads to form the
edged) None are correct
28. Mark the correct statement:a) Carbon/Graphite is usually blended with
fiber glassb) Kevlar is characterized by its white colourc) Ceramic fibers are used for low heat
applicationsd) All are correct
METALLURGY
29. In metallurgy, the term “creep” is caused due to which factor:a) High temperature for a long periodb) High compressive stressc) High stress for a long periodd) As in ‘a’ and ‘c’ and permanent creep
leads to rupture
30. Soaking period depends upon:a) Soaking does not affect the internal
structure of the metalb) Thickness of the metalc) Strength is not affectedd) All are correct
31. Centre punch made of tool steel is tempered:a) To cherry red colourb) As in ‘a’ and quenched in sandc) As in ‘b’ and heated to dazzling white colourd) As in ‘b’ and heated to purple colour
32. Shet peening is:a) Used on ferrous alloys onlyb) Increases strengthc) Also known as Sand blastingd) All are correct
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33. Fix used in welding of Aluminum alloy serves the following purpose:a) Improves the penetrationb) Get rid of oxidesc) Slows the flow of molten metald) Better fusion
34. Soldering technique of aluminum alloy is:a) Similar to that of other materialsb) Different to control the expansion and
contraction of metalc) Low heat input is requiredd) Both ‘b’ and ‘c’ are correct
35. Muntz metal is:a) Brass and is used for making nuts and
bolts for use in saline areasb) Copper alloy containing zinc and minute
quantities of tin, nickel, manganese and is used for making nuts and bolts for use in saline areas
c) Both ‘a’ and ‘b’ are correctd) Bronze and is used in fuel and oil line fittings
36. Titanium is identified by:a) Spark testb) Moistening it and using it to draw a line on
glassc) Both ‘a’ and ‘b’ are correctd) Chemical test
A/C HARDWARE
37. Friction Lock rivet is used to replace:a) Solid shank rivetb) Solid shank rivet but one size largerc) As in ‘b’ and is available in hollow, self
locking and self plugging typesd) As in ‘b’ and is available in hollow self
locking and self locking with tapped threads
38. Cherry lock rivet is used to replace:a) Solid shank rivetb) As in ‘a’ and if the length is less it fails
to compress the sheetsc) As in ‘b’ and two sizes largerd) As in ‘b’ and three sizes larger
39. Identify the figure:
a) Low strength material bolt *b) An standard steel boltc) Reworked boltd) An corrosion resistant steel bolt
40. Identify the figure: wa) Special bolt b) Magnetically inspected bolt F Oc) Dye penetrant inspected boltd) An standard steel bolt
41. Identify the figure:a) Anchor nut with one leg.b) Anchor nut with two legsc) Anchor nut with corner leg
d) Floating anchor nut
42. Marking on hydraulic seals is given as:a) Yellow mark for fuelb) Red mark for engine oilc) Green mark for skydrol fluidd) White line for air
43. How can the swaged fitting be removed:a) By drilling with a one size smaller drillb) By using a scriberc) Unscrew the threaded insertd) All are correct
44. To avoid stress due to vibration in tube lines:a) At least one bend is given in the lineb) Two bends are givenc) No bend is requiredd) Preferably no bend is done, if it is done it will
be less than 45º
45. Rigid tubing used in A/c are classified according to:a) Outside diameterb) Wall thickness and outside diameterc) Inside diameter and wall thicknessd) Inside diameter
46. 7 x 19 cable indicates:a) 7 strands of 19 wires eachb) 19 strands of 7 wires eachc) 7 strands of 133 wires eachd) 7 strands of 19mm wire
ELECTRICITY
47. An A.C. generator having 8 – poles and 6000 rpm, has the frequency of:a) 200 c.p.s.b) 400 c.p.s.c) 800 c.p.s.d) 12000 c.p.s.
48. The capacitance of a capacitor depends directly upon:a) Plate area and inversely upon the
distance between the platesb) Plate area and the distance between the
platesc) Separation and the thickness of the platesd) Plate area and inversely upon the dielectric
material
49. It electrolyte from a Lead – Acid battery is spilled, it is neutralized by:a) Sodium bicarbonate and waterb) Ammoniac) Vinegard) Both ‘a’ and ‘b’ are correct
50. If a wire is connected to a constant voltage supply and at the same time the length and radius is doubled the result would be:a) Electrostatic field across the wire would
become double
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b) Electrostatic field would become halfc) Heat produced by the wire will remain the
samed) All are correct
51. If in a circuit the resistance is ‘R’ and reactance is ‘r’ then impedance ‘Z’ is expressed as:a) Z = R + rb) √Z = √R + √rc) 1/Z = 1/R + 1/rd) Z2 = R2 + r2
52. Ohm’s Law does not hold true for:a) Gas diodeb) Mercury columnc) Transistord) Both ‘a’ and ‘c’ are correct
53. Calculate the power when voltage = 28 volts and Resistance = 10 Ω:a) 284 Wb) 784 Wc) 78.4Wd) 7.84W
54. When a new Ni — Cd battery is installed, its cell seal is opened and electrolyte is poured and to ensure full charge:a) No charging is requiredb) Charging required and is given in boost – up c) As in ‘b’ and is suddenly installed in A/C
serviced) As in ‘b’ and after 10 hrs. the electrolyte
level is checked, then it is installed
ELECTRONICS & COMPUTER
55. The given figure indicates:a) X – NOR gateb) X – OR gatec) C – MOS NOR gated) NOR gate
56. Convert (11.75) into binary form:a) 1101.01b) 1011.11c) 1100.11d) 1010.11
57. A computer can solve only the following type of problem:a) Simplexb) Complexc) Which can be broken into a number of
logical stepsd) Arithmetic calculations
58. The processing speed of a computer is expressed as:a) MHzb) KHz
c) RAM capacityd) Frequency
59. A modern digital computer stores the data and instructions in:a) English formb) Decimal formc) Hexadecimal formd) Binary form
AERODYNAMICS
60. Lift and drag of an aerofoil depends upon:a) Shape of wing, wing area and angle of attackb) Forward velocity of aircraftc) Density of aird) All are correct
61. In steady and level flight, if the angle of attack increases:a) Lift increasesb) Drag increasesc) Lift increases and drag decreasesd) Lift and drag both decreases
62. High lift devices such as flaps and slats are used:a) To increase the speed of aircraftb) To decrease the take – off and landing runc) As in ‘b’ and is used in high speed
operationd) As in ‘b’ and also to reduce the fuel
consumption
63. The device which is mounted on the opposite surface of the wing and is operated along with the aileron for lateral control:a) Balance panelb) Balance tabc) Spoilerd) Spring tab
64. Angle of attack is defined as:a) Angle between the chord line and the
longitudinal axis of the aircraftb) Acute horizontal angle between the plane of
symmetry of aircraft and the direction of relative wind
c) Angle between the chord line and the direction of relative wind
d) Both ‘a’ and ‘c’ are correct
65. In straight and level flight, the dynamic pressure acting on the tip of the nose of the aircraft is:a) Maximumb) Minimumc) Zerod) None are correct
GROUND HANDLING
66. In relation to jacking of light aircraft, mark the correct statement:a) Both main wheels are raised together
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b) Nose or tail wheel is unlocked to permit free rotation
c) Wheels are raised at least 6” from the ground
d) All are correct67. In relation to towing of an aircraft which of the
following is correct:a) Tail wheel aircrafts are generally towed from
backwardsb) Nose wheel aircrafts are generally towed
from backwardsc) Tail wheel of the aircraft must be in locked
positiond) Aircraft with steerable nose – wheel the
locking scissors are set6 to fall swivel position before towing
68. Some manufacturers of large aircraft provide a jacking point in the landing gear strut for the accommodation of a small hydraulic jack for the purpose of:a) To jack up the complete aircraftb) To service the oleo – strut in – situ when the
aircraft is on jacksc) To jack up one wheel of the aircraft to
change tyre, bearings or service the brake unit
d) Both (b) and (c) are correct
69. Class – B fire includes:a) Fire in wood, paper, cloth etc.b) Fire of energized electrical equipmentc) Fire in any petroleum productd) Fire in a metal like magnesium
A/C INSTRUMENT
70. Aircraft instrument panels are usually shock mounted to absorb the following vibrations:a) Low frequency low amplitudeb) High frequency low amplitudec) Low frequency high amplituded) High frequency high amplitude
71. In pitot static system, the static pressure is sensed at two points by placing flat plates on either side of fuselage:a) Eliminates position errorb) Freedom from ice formationc) Eliminates static and instrument errord) Both (a) and (b) are correct
72. Precision instruments are recalibrated at regular intervals in room having:a) Normal environment but having a
temperature controlb) Air – conditioned and dust proof roomc) Filtration system for particles of size 5µ -
10µ but not air – conditionedd) Filtration system for particles of size 20µ -
25µ but air – conditioned
ATA CODING
73. In ATA – 100 specification, the codes for hydraulic, pneumatic, fire protection system and engine indicating systems are:
a) 29, 26, 39, 77b) 29, 36, 26, 77c) 36, 26, 29, 79d) 29, 71, 36, 27
74. Mark the correct statementa) ATA – 22 represents communicationsb) ATA – 54 represents pylonsc) ATA – 34 represents lights
GENERAL
75. Fatigue over a man is caused due to:a) Long hours of workb) Emotional stressc) Noised) All are correct
76. Static discharge wicks is mentioned in which chapter of maintenance manual:
a) Chapter number 22.b) Chapter number 23.c) Chapter number 24.d) Chapter number 25.
BASIC ENGINE
77. The working of piston engine is based on:a) Boyle’s Lawb) Bray ton cyclec) Charle’s Lawd) Both (a) and (c) are correct
78. The mechanical efficiency of piston engine depends upon:
a) Throttle settingb) Mean effective pressurec) Fuel used and engine speed (rpm)d) All are correct
JET ENGINE
79. Mark the correct statement:a) Turbojet engines require a shorter runway in comparison to othersb) Piston engine is most suitable for higher altitudesc) Turbojet is suitable for higher altitudes but weighs more than piston engine for same powerd) Turbofan engine requires a shorter runway length in comparison to turbojet engines
WEIGHT AND BALANCE
80. The ballast used to balance the C.G. of aircraft is preferably:
a) Located as close as possible to the C.G.b) Located as far from the C.G. as possible and minimum weightc) Permanent ballastd) Temporary ballast
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PAPER – II (OCT’07)
1. In the figure 1,2 & 3 identifya) face , heel & tangb) heel, face & edgec) handle, face and bodyd) none of the above
2. Identify the figurea) cutting & sawingb) filing for surface finishc) machining for surface finishd) none of the above
3. Identify the figure concerning a drilla) cutting edgeb) cutting anglec) fluted) cutting plane
4. Identify the figurea) Extension barb) Socket handlec) Box handled) None
5. In the following figure p-n junction is a) forward biasedb) reverse biasedc) not biasedd) none
6. The figure indicates a) taperb) spot facec) spear headd) bisected
7. The following tap is a a) bottoming tapb) taper tapc) plug tapd) none
8. Identify the figurea) flare nut spanner adapterb) spanner wrench adapterc) stock spannerd) none
9. The following punch is a a) drift punchb) pin punchc) centre punchd) none
10. The following wrench is a a) Box end spannerb) Combination wrenchc) Two headed spannerd) None of the above
11. The following bolt is a) cadmium plated airframe bolt
b) aluminium boltc) close tolerance bolt for protection
greasedd) none
12. The following is a a) secondary Transformerb) auto Transformerc) one winding Transformerd) none
13. The following symbol represents a) close tolerance boltb) reworked boltc) low strength boltd) none
14. Identify the following figures respectivelya) automatic reset, push reset, push reset
pull offb) automatic reset, pull reset, pull reset push
offc) normal ON, push reset, pull reset, pull offd) none
15. Bearing A and Ba) a radial load only b) both radialc) axial loadsd) none
16. Identify the figurea) anchor nut with one lugb) heat treated anchor nutc) anchor nut with floating lugd) none
17. Normally type of shank used for hand reamer are a) straight and taperb) hexagon & squarec) heavy duty but straightd) none
18. Which of the following is true regarding composite a) good S/W ratiob) bond strengthc) ----------------d) all
19. Titanium is used in jet engines of high speed a/c becausea) It is ductile and wear resistantb) It is wear resistant retains its properties
below 5000Cc) It is wear & corrosion resistant and does not
retain its strength above 5000C
20. Electroplating is done for a) Corrosion protectionb) Wear resistancec) Increase in dimension d) All of the above
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21. Which is done on Al-alloysa) Solution heat treatmentb) Precipitation Heat treatmentc) Both a and bd) Normalizing
22. Which of the following is true regarding drillinga) coolant used is water, lard oil etcb) drill must be sharpc) high temp of the drill is evident of poor
drillingd) all of the above
23.Which process is carried out on Mg alloys for properties like ductility, strength, near resistance etc.a) solution heat treatmentb) precipitation HTc) both a and b
24. Alloys 2017 and 2024 are a) heat treated once by manufacturerb) heat treated before usec) can be used within one day after HTd) none
25. Major alloying element of 2024 is a) zincb) pure Alc) copperd) none
26. Zener diode as used a) in forward bias onlyb) for voltage regulationc) to prevent voltage spikes d) both b and c
27. Which is true with respect to transformera) transfers energy by changing freq.b) used in transistor setsc) transfer energy without changing freq.d) both b and c
28. Stress corrosion is found in a) heat treated Al alloys & stainless steel b) Al and Mg alloysc) CRS and Mg alloysd) None
29. To switch on a transistor a) EB junction forward biased CB junction
reverse biasedb) EB junction reverse biased CB junction
forward biasedc) EB junction reverse biased CB junction
reverse biasedd) None
30. With increase in load, speed of a motor decreases becausea) induced back emf increasesb) induced back emf decreases
c) induced back emf samed) none
31. In a current carrying wire if length and area are both doubled a) electric field doublesb) electric field halvesc) electric field remain samed) none
32. SCR has a) two junctionsb) three junctionsc) two forward biased & 2 reverse biasedd) none
33. A turnbuckle has a) A Cu barrel and 2 left hand threaded endsb) Made of stainless steelc) A brass barrel & a left hand and a right
have threaded endd) None
34. Al alloy sandwitched b/w layers of pure Aca) Alcladb) Purecladc) Anodizedd) Both a and b
35. Temp. in a furnace is measured and controlled by a) thermocoupleb) thermometerc) pyrometerd) none of the above
36. For skydrol O rings are colour coded asa) blue dotb) greenc) black dotd) none
37. Hydraulic fluid carrying hose is coloured a) blueb) red & yellowc) blue & yellowd) none
38. Room temp aging is otherwise known as a)
39. Room Temperature aging is otherwise known as
a) Room Temp. Heat treatmentb) Natural agingc) Normal aging
40. Defect in fluorescent penetrant test appears as a) green in black lightb) blue violet in black lightc) green in white light
41. The capacitance of the capacitor in a fuel quantity indicator depend on a) distance b/w the plates
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b) area of the platesc) dielectric constant of mediumd) all of the above
42. The capacitance of a capacitor depends on a) type of dielectricb) area of platesc) distance between platesd) all of the above
43. To convert a galvanometer into voltmetera) connecting high resistance in seriesb) connecting low resistance in seriesc) connecting low resistance in parallel
44. Electromagnetic induction depends on a) no. of turns in the coilb) speed of rotationc) strength of permanent magnetd) all of the above
45. In case of an isometric drawing a) vertical lines are at an angle of 1200
b) vertical lines are vertical & horizontal lines at 300
c) vertical lines are vertical & horizontal lines at 600
46. Front, top and right side view correspond to a) orthographic projectionb) isometric drawingc) perspective drawing
47. Write the correct statement wrt MACa) it is an imaginary aerofoil in which all the
forces act in the same way as they would act on a wing surface
b) it is the average of all chords one foot a partc) mean aerodynamic chordd) all of the above
48. Which of the following are high lift devicesa) flaps & slatsb) flaps & boundary layer devicesc) slats & boundary layer devicesd) all of the above
49. An algorithm has a) An inputb) An outputc) An assigned statement
50. Convert 11.75 to binarya) 1011.10b) 1101.11c) 1011.11 d) 1110.10
51. The truth table corresponds to A B V 0 0 0 a) 0 1 1 b)1 0 1 c)1 1 1 d)
52. Universal gates
a) AND & ORb) NAND & NORc) XOR & EXNORd) None of the above
53. Triangular files are a) Have safe edgeb) Tapered along 3 edgesc) Used to cut acute anglesd) Both b & c
54. Lift and drag depends upona) AOA increases Lift & drag both
increasesb) drag depends upon frontal area onlyc) lift depends on AOA onlyd) all of the above
55. Delaminations in compositesa) are always visibleb) always accompanied by impact damagec) cannot be detected by coin tap testd) none of the above are correct
56. Ammeter is used for measuringa) current supplied by a batteryb) current supplied by a generatorc) current during charging and
dischargingd) current during charging and discharging
when electrical requirement change
57. Lead acid battery electrolyte can be neutralized by a) bicarbonate of sodab) vinegarc) boric acidd) both b and c
58. Composition of Pb acid battery in a fully charged state is a) 30% acid & 70% H2O by volumeb) 70% acid & 30% H2O by weightc) 50% acid & 50% H2O by weight
59. Bonding is done during fuelling to a) provide low resistance pathb) give way to stray currentc) dissipate static charge
60. Radiography depends upona) shape and size of objectb) nature of defectc) film characteristicsd) all of the above
61. Ultrasonic testa) ferrousb) non-ferrousc) all materiald) ceramic
62. when it is necessary to retighten a nut
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a) retighten without backing offb) retighten by backing off a single turnc) retighten by backing off one flare portion
63. When it is required to turn the bolt head instead of nuta) max. torque range increasesb) max. torque range decreasesc) max. torque range remains same
64. What is the purpose of flux in solderinga) to remove metallic oxideb) to provide more penetration of solderc) for free flow solderd) all of the above
65. Vortex generator is used for a) high speed characteristics of wing surfaceb) low speed characteristics of tail plainec) low speed characteristics of wing surfaced) both a and b
66. Co-efficient of lift depends upona) shape and area of aerofoilb) shape of aerofoil and angle of attackc) shape of aerofoil onlyd) camber of wing upper surface
67. Hi tigue fastenersa) can replace solid shank rivets of same
diab) can replace solid shank rivets of one dia
largerc) can replace solid shank rivets of one dia
smaller
68. Chord line is a) curved line joining wing LE to TEb) straight line joining wing LE to TEc) max upper camberd) line joining from wingtip to wingtip
69. Negative dihedral is employed in a/c to a) to impart lateral stabilityb) to improve the high speed characteristicsc) to generate more liftd) counteract the effects of excessive
lateral stability
70. Anodized Al is cleaned by using a) steel woolb) sand paperc) Al woold) Carbide embedded paper
71. If the power drawn by a load at a supply voltage of 28V is 20W then the line resistance is a) 78.4 b) 28 c) 82 d) 28.82
72. Triode consists of a) plate cathode & heaterb) plate, cathode, tube
c) plate, cathode, heater & a wire mesh between plate & cathode
73. Carbon fibre is anisotropic. This means :a) the molecules are distributed linearlyb) molecules are in aligned thus physical
properties are different in all directions
74. Junction diode is not used as an a :a) rectifierb) source of lightc) for detecting the intensity of light d) as an amplifier
75. When bolts are rivets are used side by sidea) they are protected by greasingb) they are plated for protectionc) they are lubricated for cooling
76. Failure by fatigue is identified by a) marks that extend at 900 to loads imposedb) marks that are symmetricalc) marks that are at an angle to the part
failed
77. Before DPT parts are cleaned using a) kerosene oilb) petrolc) soap and detergent
78. To check a circuit for continuity it must be a) connected to a power sourceb) connected to a batteryc) isolatedd) both a and b
79. Tooth thickness of a gear is measured by a) vernier micrometerb) vernier caliperc) at the point where pitch circle cuts the
teeth d) vernier micrometer & vernier caliper
80. A Bevel gear transmits motiona) at an angleb) perpendicularlyc) parallelyd) reduces speed
81. In a spur geara) diametrical pitch is equal to pitch diameterb) PD/DP gives size of teethc) Teeth are cut ut an angle to the axis
82. Elastomer is a) rubber tiresb) metal sheets impregnated with rubberc) rubber containing metal chips for bonding
83. In a micrometera) anuil & barrel moving spindle movingb) anvil & barrel stationary spindle
movable
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c) frame rotatable spindle stationary
84. In case of swaged fittinga) if lesser the dia the fitting is overswagedb) fitting must be rejectedc) lesser the dia the fitting is underswagedd) both a and b
85. Information required in a blue print is a) TPI, major dia, grip length , material ,
depthb) Pitch dia, minor dia, TPIc) Major dia, minor dia, TPI
86. Modern computers usea) Binary systemb) Decimal systemc) Octal systemd) Hexadecimal system
87. A semiconductor possessesa) infinite resistance at 00Cb) finite resistance which with tempc) finite resistance which with temp
88. CRS consists of a) 18 % Cr and 8% Nib) 18% Ni and 8% Crc) 20% Ni , 2% P and 8% Cr
89. Peizoelectric effecta) quartz crystal & Rochelle saltb) semi conductorsc) freq. depends on thickness of crystald) both a and c
90. Inductance depends on :a) AC or DC (Type of current)b) No. of turns in the coilc) All
91. A gyro having 3 degrees of freedom and 3 mutually 1 axes :a) space or free gyrob) rate gyroc) turn gyro
92. As the speed of a/c a) static prb) dynamic pressurec) both static & dynamic prd) static pr Dynamic pr
93. All purpose rust preneutine compound is a) paralketoneb) lubricating oilc) grease
94. An 310 is used with a) clevis boltsb) undrilled shank boltsc) hexhead bolts
95. Pitch dia of a gear is equal to
a) AXN
96. Resistance of a straight conductor does not depends on a) shape of cross section b) materialc) length
97. Screw threads a) square threads have equal width and height
distance b/w the threads is also sameb)cd)all
98. Flap increasesa) camberb) angle of attackc) none
99. Rockwell testingb) lesser the Rockwell number harder the
materialc) lesser the Rockwell number softer the
materiald) dia of the ball
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PAPER-II (FEB-2008)
1. Convert these number in binary of 11.75:a) 1101.11b) 1011.11c) 1010.11d) 1001.10
2. For neutralize the Pb-acid battery spillage with:a) Sodium bicarbonate/backing sodab) Boric acid and as in (a)c) Vinegard) All of the above
3. Piezoelectric effect is caused on:a) Quartzb) Rochellsaltc) As in (a) & (b) are correct
4. Function of slat & flap:a) To increase the speed of A/cb) To decrease the take off & landing runc) As in (b) & is used in high speed operationd) As in (b) & also to reduce the fuel consumption
5. In pure semi-conductor having resistance:a) Infinite resistance at 0ºCb) Finite resistance with increase in temperaturec) Finite resistance with decrease in temperature
6. Language of computer is:a) Decimalb) Octalc) Binary
7. Titanium is:a) Having more U.T.S. than Al & stainless steelb) Having light wt. & high strength & corrosion resistance in salt waterc) High strength-to-weight ratiod) All of the above
8. In florescent penetrate inspection the defects will show:a) Brilliant yellow & green color in black lightb) Deep blue violetc) None
9. Capacitor plate in a capacitor type fuel quantity gauge depends upon:a) Directly proportional of plate areab) Inversely proportional with distance b/w the platesc) Type of dielectric materiald) All are correct
10. Pn Zn diode does not used as a:a) Light intensityb) Rectifierc) Amplify the sc signals/transformer & light radiations
11. Bevel gear is used for:
a) Transmission of load b/w shaft at an angles to each otherb) For variation of speedc) In speed reducerd) All are correct
12. Circular magnetization method used in MPI correct detect which type of defect:a) Longitudinal cracksb) Deep – sub surfacec) Lateral cracksd) Torsional cracks on a shaft
13. 7 x 19 cable indicates:a) 7 strands of 19 wires eachb) 19 strands of 7 wires eachc) 7 strands of 19 mm wires each
14. Microprocessor at least consists of:a) CPUb) Memoryc) Arithmetic logic unitd) All are correct
15. The greatest size drill amongst the following is:a) No. 1b) No. 30c) 3/16”d) ‘E’
16. Find the micrometer reading from the given diagram:a) 0.4699”b) 0.4569”c) 0.4692”
17. The primary cause of inter granular corrosion is:a) Dissimilar metal contactb) Improper heat treatmentc) Due to non-metal & metal contactd) Due to corrosive gases
18. Weft threads are:a) At 45º to warp threadsb) Perpendicular to warp threadsc) Along with the warp threads to form the edged) None are correct
19. Rigid tubing in the a/c are classified according to:a) Outside diameterb) Wall thickness & outside diameterc) Inside diameter & wall thicknessd) Inside diameter
20. 4 in a circuit the resistance is ‘R’ & reactance is ‘r’ then impedance ‘Z’ is expressed as:a) Z = R + rb) √Z = √R + √rc) 1/Z = 1/R + 1/rd) Z2 = R2 + r2
21. The given figure indicates:a) X – NOR gateb) X – OR gate
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c) C – MOS NOR gated) NOR gate
22. Calculate the power when voltage = 28 volts & Resistance = 10Ωa) 28.4Wb) 784Wc) 78.4Wd) 7.84W
23. In steady & level flight, if the angle of attack increases:a) Lift increasesb) Drag increasesc) Lift increases & drag decreasesd) Lift & drag both decreases
24. In straight & level flight, the dynamic pressure qeting on the tip of nose of the a/c is:a) Maximumb) Minimumc) Zerod) None of the above
25. In pitat static system, the static pressure is sensed at two points by placing flat plates on either side of fuselage:a) Eliminates position errorb) Freedom from ice formationc) Eliminates static & instrument errord) Both (a) & (b) are correct
26. In ATA – 100 specification, the codes for hydraulic, pneumatic five protection system & engine indicating system are:a) 29, 26, 39, 77b) 29, 36, 26, 77c) 36, 26, 29, 79d) 29, 71, 36, 27
27. Fatigue over a man is caused due to:a) Long hours of workb) Emotional stressc) Noised) All of the above
28. Static discharge wicks is mentioned in which chapter of maintenance manual:a) Chapter number 22b) Chapter number 23c) Chapter number 24d) Chapter number 25
29. Elevator is used to:a) For lateral controlb) Rotate a/c around lateral axisc) Establish a/c about lateral axisd) Both (b) & (c) are correct
30. Angle of incidence is defined as:a) Angle b/w longitudinal axis & relative windb) Angle b/w longitudinal axis & chord linec) Angle b/w chord line & relative windd) None of the above
31. Torque tube is:a) Act as rotating member in cable systemb) Compression & tension both load can
withstandc) Used along with bell crankd) Convert rotary motion along with bell crank
32. In an electrical ckt. If capacitance is 100 microfarad & charge is 1 micro colomb, then voltage rating would be:a) 100 Vb) 10 Vc) 1 Vd) 1000 V
33. Given figure indicate:a) Splined shaftb) Meshing gearc) Gear & pinion
34. Given figure indicate:a) Double pole double throwb) Double pole single throwc) Single pole double throwd) Push pull s/w
35. Given figure indicates:a) Bucking bar not held properlyb) Excessive drivec) Upset head
36. If one wheel is be jacked:a) Tripod jack is usedb) Remaining wheel should be chockedc) Wheel raised should be raised by 6” to 8”
37. Shunt a/c motor is used to drive:a) Landing gearb) Gyro & servo motorc) Flap
38. Ac motor is used in respect of DC motor or advantage of a/c motor over DC motor:a) Less weightb) Less manufacturer cost & maintenancec) Brush & commutator is not used in A.C.
motor
39. In A/c seeps in fuel tank is specified by:a) Low seep, seep, heavy seepb) Stone, low seep, heavy seep, running leakc) Running leak, leakd) All of the above
40. Annealing of steel is done for:a) Maximum ductilityb) Softnessc) Low strengthd) All of the above
41. High resistance load in electrical ckt. Is checked by:a) AVM meter in DC ohmb) DC battery with lamp
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c) Maneto synchronizerd) Both (b) & (c)
42. In given figure of welding is indicates:a) V-weldb) U-weldc) Double beveled weldd) J-weld
43. Conductor having 4Ω resistance, stretched twice in length then new Ω would be:a) 4 Ωb) 8 Ωc) 16 Ωd) 12 Ω
44. Titanium is heat treated to:a) Relief internal stressesb) Annealing for further cold workingc) Thermal hardening to improve d) All of the above
45. If two battery A & B such that A having greater plate area than B, then internal resistance of A will be:a) Greater than Bb) Smaller than Bc) Equal to Bd) None
46. MTCS:a) In nacelle it is measured from the front spar
of the wingb) Water line measure height in inches in
parallel to the horizontal planec) Butt line measures width from left to right,
parallel to the vertical planed) All of the above
47. Hose colour of 100 LL fuel is identified by:a) Red bandb) Black bandc) Red band green stripd) Black band yellow strip
48. Colour of fuel line is:a) Red colourb) Blackc) Brown
49. MTCS:a) Reed & prince s/w driver having blunt pointb) Phillips s/w driver is bluntc) Phillips s/w driver having pointed
50. Kirchoff’s law is applicable for:a) A.C. ckt.b) D.C. ckt.c) Both A.C. & D.C. cktd) Both A.C. & D.C. excluded capacitive &
inductive element
51. Fatigue crack detected by:a) Ultrasonic
b) Magnetic particle inspectionc) Eddy currentd) All of the above
52. In composite impact damage & water disbond is inspected by:a) Thermal halo graphb) Laser halo graphc) Ultrasonicd) X-ray
53. Hardness testing for steel is measured by:a) Rockwell tester (Resistance to penetration &
depth of penetration)b) Brinell tester (Dia of penertration)c) Bar kol testerd) Both (a) & (b) are correct
54. In rigging & alignment check of a/c is:a) A/c must be leveled on jackb) Always not needed for levelingc) Cable tension is measured by control at
neutrald) All of the above
55. In micrometer, if zero of thimble is above the datum, then it is:a) +ve zero errorb) –ve zero errorc) Zero error
56. In vediography, density defined as:a) Relative brightness two adjacent areab) Degree of blackening of radiographc) Both (a) & (b) are correct
57. Resistance of conductor does not depend upon:a) Lengthb) Shape of cross-sectionc) Aread) Temperature
58. Unit of electrical power & energy is:a) KW & KWH respectivelyb) KWH & KW respectivelyc) Joule & KW Respectivelyd) KW & Joule respectively
59. Memory of computer are:a) RAM, CPU, ALCb) ROM, RAM, PROMc) ALC, ROM, RAMd) None
60. Center of cylindrical & round shaft is found by:a) Combination setb) DTIc) Micrometer
61. If V = volt, W = weber, A = Ampere & S = sec. then correct equation is:a) A = WS-1
b) V = WS-1
c) None
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62. MTCS for checking of tension of cable:a) Tentiometerb) Tentiometer & manufacturer data followc) Both (a) & (b)
63. Rehostate has:a) Two terminalb) Three terminalc) Two terminal, one is attached to one end &
other is attached to jockey type
64. Fare lead stackness correction maximum is:a) 2ºb) 3ºc) 5ºd) 8º
65. Given figure is shows the material:a) 2017b) 2117c) 2024d) 5056
66. Burns are removed in Blind hole by the help of:a) Chemical solventb) Filec) Larger drill than hole sized are usedd) Counter shunk reamers are used
67. Dzus fasteners consists of:a) Stud, grommet & receptacleb) Grommet is made of Al or Al alloyc) Stud & receptacle is made of steel, cd platedd) All of the above are correct
68. Hydraulic fluid used in break unit system that’s properties are:a) High flash pointb) High freezing pointc) High boiling pointd) All of the above
69. MTCS for the Pb-acid battery is tested using a hydrometer:a) Correction is required when 100ºFb) Correction is required when less than 80ºF or
more than 80ºFc) No correction is required
70. MTCS regarding catter pins:a) An 481 – 2 – 4 – CRS are usedb) An 380 – 1 – 8 – CRS are usedc) An 381 – 2 – 4 – CRS are used 1/16” dia &
length 1/8”
71. Convert the binary no. (110) in decimal no.:a) 2b) 7c) 6d) 16
72. MTCS regarding thermocouple:
a) Sensing the Hot & Cold in due to temperature variation
b) Its act as a transducerc) Both (a) & (b)
73. For repairing the oversize hole with sleeve, the hole must be drilled oversized by:a) 3/16”b) 1/32”c) 1/64”d) 3/64”
74. In given figure show the defect:a) Hole too largeb) Hole too smallc) Hammering is not proper
75. In Pb-acid battery corrosion treatment are:a) Sodium bicarbonate of soda & waterb) Vinegarc) Ammoniad) Both (a) & (c) are correct
76. Rivet finish is checked by:a) Micrometerb) Ring gaugec) Both (a) & (b) are correct
77. Same mass of two object, one object charged with +ve & other charged with –ve, then what will be effect in the mass of both object:a) Increasesb) Decreasesc) Samed) None
78. Identity the given figure:a) Normal onb) Momentary onc) Pressure s/w
79. Identify the given figure:a) Mechanical linkageb) Current limiterc) Momentary ond) None
80. In given figure arrow indicates that:a) Inlet portb) Outlet portc) Driving gear
81. In given figure arrow indicates that points:a) Outlet portb) Intake portc) Exhaust port/doweld) For the purpose of lubrication
82. In the given figure length of rivet measured by the:a) (A) is correctb) Only (C) is correctc) (A) & (C) is correctd) Only (A), (B) & (D) is correct
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83. MTCS regarding it is the maximum tensile load per square inch which a material can withstand:a) Yield strengthb) Ultimate tensile strengthc) Proof stress
84. In given figure, what’s the reading:a) 0.2750”b) 0.27527”c) 0.2758”d) 0.2792”
85. Rivet spacing defined as:a) Distance b/w two adjacent rowb) Distance b/w two consecutive rivet centerc) Both are correct
86. Cable performing is defined as:a) Improving corrosion resistanceb) Strands & wire held togetherc)d) All of the above
87. In following given figure identify the balance tab:a)b)c)d)
88. Identify the given figurea) Double – action actuating cylinderb) Single – action actuating cylinderc) Three – port actuating cylinder
89. Identify the figure sequence wise:
a) Three port actuating cylinder, turning counter clockwise, clockwise
b) Clockwise, counter clockwise, three port actuating cylinder
c) Three port actuating cylinder, clockwise, counter clockwise
90. Identify the following figure in sequence wise:
a) Cable receptacel, wall receptacle, box receptacle
b) Box receptacle, wall receptacle, cable receptacle
c) Wall receptacle, cable receptacle, box receptacle
d) Cable recetacle, box receptacle, wall receptacle
91. Identify the following given figure by sequence wise:
a) Ball end, rod end, fork end, eye endb) Rod end, fork end, rod end, eye endc) Eye end, fork end, rod end, ball endd) Rod end, ball end, fork end, eye end
92. In Pb-acid battery during charging/after charging electrolyte is:a) Electrolyte is high the terminal voltageb) Always less than the electrolyte voltagec) Greater or less, its depends on battery
voltage directiond) None of the above
93. What’s the effects of under inflation:a) Creep or slip on the wheelsb) Tube valves can shear offc) Uneven wear at or near the edge of the
treadd) All the above are correct
94. L.E.D. is…………………………..95. Colour of fire extinguisher
is……………………………..
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