Gen_Engeering_2D_f

INDIAN INSTITUTE OF AERONAUTICAL SCIENCE, KOLKATA

Subject:- General Engineering 2D1. The ease with which a material accepts the induced current in eddy current inspection is determined by the following property.

1. The conductivity and permeability. 2. Its mass 3. By the presence of any voids or faults. 4. All of these2. Which NDT method is most successful in detecting irregular corrosion in non-ferrous metals?

1. Spectrograph 2. Radiography 3. Magnetic particle inspection 4. Eddy current testing3. Circular magnetization is the inducing of a magnetic field

1. consisting of concentric circles of force about and within the part2. it done by passing electrical current through the part3. this type of magnetization will locate defects running approximately parallel to the axis of the part4. All of these

4. Mark the correct statement 1. Circular magnetization is produce by magnetizing current passes from and head to the other through the part 2. Circular magnetization of a hollow part by passing the magnetizing current through a conductor bar, located on the axis of the part 3. in longitudinal magnetization of long parts, the solenoid must be most be moved along the part in order to magnetize it 4. All of these

5. The residual method is used in magnetizing the part 1. All steel part 2. Magnesium part 3. Steel which has been heat treated 4. All of the above

6. The inside of gas turbine engine can be inspected by 1. Ultrasonic testing 2. Eddy current testing. 3. Fluoroscopy. 4. Endoscope

7. Which method can effectively detect the heat treatment state of a metallic part 1. Eddy current 2. Radiography 3. Dye penetrate method 4. Visual inspection

8. Which of the following is not a factor affecting of eddy current crack detection method 1. Permeability 2. Conductivity 3. Surface preparation 4. Geometry of specimen

9. When high velocity electron strike a tungsten target 1. X-rays are generated 2. Y-rays are generation 3. Light rays are generated 4. Ultrasonic waves are generated

10. Which NDT is normally the most satisfactory to determine the internal structure condition of highly stressed cast Al-alloy fitting

1. Radiographic inspection 2. Dye penetrate inspection 3. Magnetic particle inspection 4. Fluorescent penetrate inspection

11. Magnetic Particle inspection is a method of detecting invisible cracks and other defects in1. Ferrous metal 2. Nonferrous. 3. Any material 4. Plastic material

12. A discontinuity may be defined as 1. crack, forging lap 2. Seam . 3. Inclusion, porosity. 4. All of the above

13. Mark the correct statement 1. before MPI grease, oil and dirt must be cleaned from all parts before they are tested.2. coating of cadmium, copper, tin and zinc do not interfere with the satisfactory performance of MPI3. chromium and nickel plating generally will not interfere with indications of crack open to the surface of the base metal but prevent indications of fine discontinuities, such are inclusions

4. All of these14. For detection of surface defects by eddy current testing

1. Low frequency is to be used as it gives more sensitivity 2. Low frequency is to be used as it gives less heating effect3. High frequency is to be used as it gives more sensitivity 4. Both 1 & 2 are true

15. Magnetic particle inspection has proved extremely reliable for the rapid detection of such defects1. Located on surface 2. Located near the surface3. At any position through out the material 4. Both 1 & 2 are correct

16. Mark the correct statement 1. In MPI consists of first magnetizing the part 2. In MPI after magnetizing ferromagnetic particle apply3. Indicting medium may be held in suspension in a liquid or the particles, in dry power form 4. All of the above

17. In radiographic inspection1. The penetration power is more if wave length of x-ray is more2. High frequency of x-ray has low penetration power as it is rapidly absorbs3. X-rays have more penetration than gamma rays 4. Gamma rays are more hazardous than x-rays

18. ‘Penetration time’ in liquid penetrant cleaning refers to 1. The time for developer to penetrant into the crack 2. The time for dye to penetrant into the crack 3. The time for degreasing solution to penetrate into the crack4. The time for pre-cleaning solution to penetrate inside crack and remove any dirt etc. & open up the cracks

19. To locate a defect in a part, it is essential that the magnetic lines of force pass approximately 1. Parallel to the defect 2. Perpendicular to the defect3. Either parallel to the defect or perpendicular to the defect 4. None of these

20. When defects are likely to exist at any angle to the major axis of the part then 1. Circular magnetization is required 2. Longitudinal magnetization is required3. Either 1 or 2 4. None of these

21. In hot oil and chalk process after pre-cleaning parts are dipped in a solution of lard oil in paraffin and is heated at a temp. approximately 1. 80 degree C 2. 80 degree F 3. 60 degree C 4. 60 degree F22. The penetrate comes out to the surface in hot oil & chalk method due to

1. Blotting action 2. Expansion of metal 3. Contraction of metal 4. Both 1 & 3 are correct23. In the ultrasonic inspection, the ultrasonic sound energy can be introduced into test specimen by

1. Direct contact of transducer on one side of material 2. By two transducers, on both side of material3. Immersion method 4. All of the above

24. In eddy current testing, high frequency gives1. Greater sensitivity and penetration 2. Low sensitivity and penetration 3. Greater sensitivity and lower penetration 4. Lower sensitivity and greater penetration

25. The major dis-advantage of dye penetrant method is 1. It cannot be used on magnetic particles 2. The defect must open to the surface 3. It cannot be used on non-metallic material 4. Internal cracks may be detected

26. Penetrant dye may be used on some non-metallic material but is NOT recommended for1. Perspex type material as crazing occurs 2. Ceramics as it cracks 3. glass as it reacts with penetrant dyes 4. Carbon composites

27. In fluorescent dye penetrant method, the crack appears 1. Black in red light 2. White in black light 3. Green in black light 4. Brown in green light

28. Circular magnetization occurs when __ and current is passed 1. A coil is wound around the specimen 2. Current is passed by conduction method 3. Coil is wound and alternating current is passed 4. Conduction method with alternating current

29. The pattern for an inclusion in a magnetic particle inspection is a build up forming1. A fernlike pattern 2. A single line 3. A small outline 4. Parallel line

30. During de-magnetization in MPI we use 1. Increase DC current 2. Increasing AC current 3. Decreasing DC current 4. Decreasing AC current

31. Oil is applied on the surface of the material to be tested by ultrasonic crack detection method so that1. It lubricates the surface evenly 2. It reduces the friction between probe & specimen3. It forms an acoustic coupling 4. Both 1 & 2 are correct

32. The probe in an ultrasonic testing operates on1. See back effect 2. Piezo electric effect 3. Joule effect 4. Thomson effect

33. Choose the correct statement 1. Magnetic particle inspection is applicable to all conducting metals2. Surface defects such as cracks sometimes may not produce any indication during a magnetic particle testing3. This coatings of cadmium, copper, tin and zinc do not interfere with satisfactory performance of magnetic particle inspection 4. 2 & 3 are correct

34. In ultrasonic testing, higher frequency gives1. Low absorption of sound energy by the material and increased sensitivity 2. High absorption of sound energy by the material and increased sensitivity 3. High absorption and decreased sensitivity 4. None of these

35. Wing internal structure are best inspected by1. Continuous magnetic particle inspection 2. Liquid penetrant inspection 3. Radiographic inspection 4. Residual magnetic particle inspection

36. Fluorescent dye penetrant process is used on 1. Light area 2. Dark area 3. None 4. All

37. Gamma rays are preferred over x-rays for detecting defects because of 1. It is less hazardous 2. It is a portable unit & can be used for in-situ parts 3. Its sharper images with contrast 4. It gives good luminescent property on fluorescent material

38. Dye penetrant process is applicable for 1. External surface defect 2. Internal defect 3. Both `4. None

39. Magnetic Particle inspection is a method of detecting invisible cracks and other defects in

1. Ferrous metal 2. Non ferrous. 3. Any material 4. Plastic material

40. Magnetic particle inspection has proved extremely reliable for the rapid detection of such defects 1. Located on surface 2. Located near the surface3. At any position through out the material 4. Both 1 & 2 are correct

Corrosion

19. Which one is an exception to group & corrosive metals? (Jeppesen General Page-15)1. iron & its alloy *2. C.R.S. 3. Tin 4. lead

20. Chrome pickle solution contains (Jeppesen page-18)1. 1.5 lb sodium dichromate 2. as in 1 & 1.5 pints nitric acid3. as in 2 & rest part water at 70 degree F to 90 degree F*4. as in 3 & the time required is 1 ½ mins to 2 mins

22. Condition required for corrosion are (Jeppesen General Pg. No. 12-5)1. anodic surface 2. cathodic surface 3. electrolyte *4. all the above

23. Mark the correct statement (Jeppesen General)1. oxidation corrosion is also ‘Dry’ corrosion 2. filiform corrosion is a special form of oxygen concentration cell corrosion3. fretting corrosion occurs around rivets in skin *4. all the above are correct

24. Mark the incorrect statement (Jeppesen General)1. magnesium attacks aluminium, which is known as amalgamation2. paint stripping is done with MIL-C25789

3. corrosion on Mg can be removed by using copper brush*4. all the above are incorrect

25. Which of these is corrosion prone area (FAA-9a)1. engine exhaust area 2. battery compartments3. wheel wells & landing gear *4. all the above

38. Mark the correct statement 1. corrosive agents are substances that are capable of causing a corrosive reaction 2. battery compartments and vents is one of corrosion prone areas 3. removal of foreign matter on alclad is done with cleaner MIL-C-25789*4. all the above are correct

40. Amalgamation is caused when aluminum is attacked through a chemical reaction by (Jeppesen Pg. No. 12-14 para-7)1. magnesium *2. mercury3. molybdenum 4. none of these

49. Which of the following is temporary method of prevention of corrosion? (Jeppesen 12-8)1. oiling 2. greasing *3. both 1 & 2 4. as in 3 and painting

52. During preservation of piston engine, desiccant plugs are installed in the spark plug hole (Jeppsen 12-30 ) 1. to restrict the entrance of moist air inside the cylinder *2. to absorb any moisture inside the cylinder 3. to absorb the excess lubricating oil in the cylinder 4. all the above

59. The use of Non-approud ordinary commercial compounds can result in a condition known as____(Jeppesen Pg. No. 12-2)1. corrosion *2. hydrogen embrittlement 3. embrittlement 4. both are correct

60. Colour of corrosion on copper & steel respectively (Jeppsen Pg. No. 12-5)1. reddish rust & greenish film 2. gray, white deposites*3. greenish film, reddish rust4. no change, remains

68. Rivet smoking occur in which form of corrosion (Jeppsen 12-14)1. filiform corrosion *2. fretting corrosion3. pitting corrosion 4. uniform corrosion

71. To protect the welded steel tube mounts from internal corrosion the tubing should be (Jeppsen 2-21)1. periodically filled with hot linseed oil2. periodically filled with tubing oil3. periodically filled with water *4. both 1 & 2 are correct

72. Colour of corrosion occur on aluminum & Mg alloy (FAA – 171)*1. gray & white powdery deposit 2. greenish film 3. reddish rust 4. all of the above

83. In which aircraft, bilge areas are protected by small bags of potassium dichromate inhibitor suspended near the low point in each bilge compartment (FAA 9A Pg.no.174)1. all aircraft 2. seaplane3. amphibian *4. both 2 & 3 are correct

85. What does “metal finishing” facilitates (FAA 9A Pg. No. 181)1. corrosion resistance 2. increase wear resistance 3. provides base for paint*4. all of the above

102. Pits are *1.concentrated anode pt.2. concentrated cathodic pt. 3. small, well defined edges running along the length of material4. both 1 & 3 are correct

104. To prevent stress corrosion1. compressive strength of metal is increased 2. shot peening is done*3. both 1 & 2 are correct4. barcol test is carried out

107. Artificial passivity in Al alloys is achieved by (CAIP BL 4-3, 2-2)1. chrome pickle treatment *2. anodic treatment3. cathodic oxidation treatment 4. sulphuric acit treatment

108. Parco lubrizing is done in steel parts ( T- 261)1. to achieve an oxide film2. as in 1 and a tough passive film*3. a phosphate coating 4. by alrok process

109. Alodising is done in aluminum alloy to ( T- 267)1. make their surface alkaline2. make a corrosion resistance surface 3. make a paint bonding surface * 4. both 2 and 3 are correct

111. Alocrom 1200 process improves anti corrosive properties to (CAIP BL 4/3 6-2)1. steel parts *2. aluminum alloy parts3. cadmium plated steel parts4. corrosion resistance steels only

112. Phosphating imparts (T-260, 261)

1. a good paint adhering surface 2. a good oil absorptive surface 3. a corrosion resistance surface*4. all of the above

117. Granodizing is (T- 261)1. chemical process 2. electrochemical process*3. electroplating process depositing a metallic phosphate coating 4. applicable to Al. or Mg. Alloys

119. Chromatizing is an corrosion protection process is applicable to (T- 267)*1. Al. alloys 2. Mg. Alloys 3. steel alloys 4. 1 or 2 is correct

121. Surface corrosion on metals occurs (FAA 9A Pg. 172)1. often on bare aluminum alloys surface 2. beneath painted surface in steel by peeling or blistering 3. as whitish gray powdery deposit or small, dark gray lumps in clad aluminium alloys *4. all the above are correct

122. If 1100 Al-alloy and 2017 alloy are in contact with each other in presence of moisture a weak acid (Jeppesen-6)1. inter crystalline corrosion initiates *2. galvanic corrosion initiates3. stress corrosion occurs4. both 1 & 2 inititates

127. Best way to protect iron from corrosion is (Jeppesen Pg. 5, 4th para)1. give a coat of grease 2. boil in solution of sodium chloride *3. cover the surface with any film that will prevent oxygen reaching the metal 4. give a coat of cyanide layer

128. Pickling processes are used to (CAIP BL 4-2, Pt 3.2)1. remove corrosion product2. remove residue of original treatment 3. etch the treated surface *4. 1, 2 & 3 are correct

129. Serious electrolytic or galvanic action can set in between two metals (Jeppesen Pg. 6)1. if there is a slight difference in their inherent electrical potentials2. if one metals is anodic & other is cathodic 3. if both metal are made wet*4. due to difference in their inherent electrical potential and in the presence of an electrolyte

132. Anodision is applied to (T- 264)1. steel2. transparent plastic*3. aluminum & aluminum alloys4. magnesium and magnesium base alloys

133. Worn out dimensions of steel parts are restored by ( T- 263)1. anodizing *2. chromium plating 3. bonderizing 4. cadmium plating

136. During cadmium plating a high current supply result in (T-258, last para)1. hard deposit *2. burnt deposit 3. soft deposit 4. coarse deposit

138. Which is the best means for removing the rust from steel (FAA 9A Pg. 177)*1. mechanical 2. chemical 3. electrical 4. bio-chemical

139. Specified thickness of cadmium coating on threaded portion is (T-258, 1st para)1. 0.0005” 2. 0.005”*3. 0.0002” 4. 0.002”

142. Name the metal on which the corrosion is indicated by black pits (CAIP BL 4-1, Pt. 2.3c)1. alloy of carbon and steel 2. magnesium alloy 2. zinc alloys *4. corrosion resistant steel

145. Ventilation & draining points prevent (CAIP BL 4-1, 3.2.3)1.fretting corrosion 2. filliform corrosion *3. crevice corrosion 4. exfoliation

148. Purpose of phosphating is to (FAA 9A Pg. 1)1. increase the resistance of steel to corrosion 2. provide a base for the subsequent organic coating3. to make the surface rough *4. 1 & 2 are correct

149. Bonderising is a modified process of Parkerizing & can be completed within ( T-256)1. 30-45 min *2. 3-5 min3. one hour 4. 15 min

150. Anodic oxidation may be specified (T-261)1. to improve resistance to wear 2. as an aid to inspection 3. to provide temporary protection from corrosion *4. all are correct

153. Hard anodizing has a thickness of film (B Tech Pg. 14)1. 0.0003”-0.0005” 2. 0.003”-0.005”*3. 0.001”-0.003” 4. 0.001”-0.005”

154. Damaged film can be repaired in the ______ process ( T- 267) 1. alrok process 2. sulphuric acid anodizing 3. chromic acid anodizing *4. chromatizing

161. Coating the surface of a metal with varnish to protect from corrosion is called (CAIP BL 4-3, Pt. 2.6)1. chemical inhibition *2. mechanical protection 3. chemical protection 4. none of these

162. Galvanic anodizing is carried out on (T- 270)1. dissimilar metals *2. magnesium alloys

3. pure aluminum4. magnesium rich aluminum alloys

163. Protection against corrosion can be carried out by (CAIP BL 4-3, Pg. 2)1. mechanical protection 2. chemical or electro-chemical protection 3. coating with other metals *4. all are correct

171. Which one of the following is called metallic cancer1. concealed corrosion *2. intergranular corrosion 3. fretting corrosion 4. none

173. In case of cadmium plating electrolyte used is (T-258)1. cadmium cyanide *2. sodium cyanide3. magnesium cyanide 4. none

174. The process by which Zn phosphate are applied over the surface is known as (T-261)1. costelizing *2. granodizing 3. phosphating 4. none

176. In fuel tanks, corrosion takes place is ______ corrosion (CAIP BL 4-1, Pt. 2.3.7)*1. microbial 2. concealed 3. crevice 4. pitting

178. The angle between sand blasting nozzle and the component is maintained between (T-256)*1. 45-60 degree 2. 20-40 degree3. 60-80 degree 4. 90 degree

179. Electrolytic pickling is preferred because1. pitting formed are less2. surface guts shinning effect*3. no hydrogen embrittlement 4. surface texture is brightened

181. While carrying sealed-chrome pickle treatment for Mg alloy, the job is dipped in a solution of (T-269)1. 10-20% potassium dichromate 2. 10-20% sodium dichromate*3. 10-20% potassium or sodium dichromate 4. none

182. Select the metal on which corrosion forms a greenish film (FAA 9A Pg. 171)1. aluminum and its alloy 2. steel & iron3. titanium & its alloy *4. copper and its alloys

183. The first requirement for corrosion is the presence of 1. contact of dissimilar metals 2. improper heat treatment*3. moisture 4. all are correct

184. Steel parts are pickled to remove (T-256)1. scale 2. rust

3. other foreign metal *4. all are correct

185. White powdery deposit corrosion product is generally found on (T-171)1. steel *2. aluminum alloys 3. copper 4. iron

200. Best way to protect iron from corrosion is (FAA-177)1. give a coat of grease 2. boil in solution of sodium chloride*3. cover the surface with any film that will prevent oxygen reaching the metal4. give a coat of cyanide layer

202. Chemical treatment given to steel is (CAIP Vol-I, BL 4-2, Pt.3.2)1. remove corrosion product2. remove residue of original treatment3. etch the treated surface *4. 1,2 & 3 are correct

204. When metal spraying a surface the material used to spray (T-262, FAA-257)1. small regular grains of sand2. steel wire having low melting temperature*3. Aluminum wire4. soft chromium wires

205. The chemical treatment that covers the surface with passive layer to resist corrosion is given after (T-257)1. anodizing 2. chromium plating *3. cadmium plating 4. coslettizing

206. Magnesium alloys are treated in the hot solution of (T-2)*1. potassium dichromate, ammonium sulphate, ammonium dichromate2. potassium dichromate, sodium dichromate, ammonium chloride3. ammonium nitrate, ammonium sulphate, potassium sulphate4. both 2 & 3 are correct

207. Which of the following provides most satisfactory form of protections for AGS and other parts of non stainless 1. nickel plating 2. zinc plating *3. cadmium plating 4. galvanizing

211. Formation of corrosion on the surface of aluminum is indicated by (FAA 9A Pg. 171)1. swelling or bulging of skins 2. pulled or popped rivets *3. whitish powdery deposit 4. 1,2 & 3 are correct

212. To prevent corrosion between dissimilar metal joints in which magnesium alloy is involved (FAA-180)*1. prime both parts with two coats of zinc chromate primer and place a layer of pressure sensitive vinyl tape between them2. primer only magnesium part with one coat of zinc chromate primer3. coat both mating surfaces with an aluminized varnish4. magnesium parts must be plated with the same metal as the part it will be in contact

213. Galvanic action caused by dissimilar metal contact may best be prevented by 1. applying a nonporous dielectric material between the surface *2. priming both surface with a light coat of zinc chromate primer3. special precautions are not required if they are properly bonded4. application of paper tape between the surfaces

214. All metal are affected to some extent by the atmosphere. This effect is called (CAIP BL 4-1, Pt.2)*1. corrosion 2. weathering 3. welding 4. brinelling

215. Corrosion reduces the 1. strength 2. ductility*3. strength and ductility of metals 4. none

216. Find the odd man out1. corrosion resisting steel 2. alclad3. K. monel *4. magnesium

221. Corrosion should be removed from magnesium parts with a (FAA-179, 2nd vol Pt. 2)1. silicon carbide brush 2. carborundum abrasive *3. stiff, hog-brush4. none

222. What may be used to remove corrosion from highly stressed steel surfaces1. steel wire brush *2. fine grit aluminum oxide3. medium-grit carborundum paper4. none of the above

223. Inspection for corrosion is a continuing problem and should be handled on a *1. daily basis 2. weekly 3. monthly 4. yearly basis

224. Seaplane and amphibian aircraft bilge areas are protected1. by plating 2. by painting*3. by small bags of potassium dichromate inhibitor suspended near the low point 4. all of the above

225. Which is the best means of removing the rust from steel*1. mechanical 2. chemical 3. electrical 4. bio-chemical

226. What is used for general cleaning of aluminum surfaces by mechanical means1. carborundum paper *2. aluminum wool3. crocus cloth 4.none of these

227. Select the solvent used to clean acrylics and rubber*1. aliphatic naphtha 2. methyl ethyl ketone 3. aromatic naphtha 4. none of these

228. Fayed surfaces cause concern in chemical cleaning because of the danger of 1. forming passive oxides *2. entrapping corrosion material3. corrosion by imbedded iron oxide 4. all of the above

229. Caustic cleaning products used on aluminum structures have the effect of producing 1. passive oxidation 2. improved corrosion resistance *3. corrosion 4. all are correct

231. Cleaning of parts by blowing abrasive particles against the surface is known as (T-255)1. metalising 2. metal spraying *3. sand blast 4. pickling

236. What type of corrosion can take place when parts are bolted tightly together and yet slip slightly on one another during flexing or other movements of aircraft parts1. surface 2. stress 3. inter granular *4. fretting

241. Anodizing is the most common surface treatment of ( T-267)1. alclad or pure clad surfaces*2. non clad aluminum alloy surfaces 3. both 1 & 2 4. none of the above

242. Worn out dimensions of steel parts are restored by (FAA –183)1. anodizing *2. chromium plating 3. bonderizing 4. cadmium plating

243. When metal spraying a surface the material used to spray is (FAA- 182)1. small regular grains of sand 2. steel wire having low melting temperature*3. aluminum wire4. soft chromium wires

244. When the corrosion attacks the boundaries of crystals inside the metal it is called (T-252)1. surface corrosion *2. inter crystalline 3. corrosion due to stress 4. oxidation

247. Steel parts are pickled to remove1. scale 2. rust 3. other foreign metal *4. all of these

General Engineering-2D1)Weight and balance data can be obtained from:- (15 a-54) a) aircraft specification b)aircraft flight manual c)aircraft operating limitation*d)all

2)Datum is an imaginary_ ______ plane from which all _________ measurements are taken for balance purpose:- (15a-54)*a)vertical,horizontalb)horizontal,verticalc)horizontal,horizontald)vertical,vertical

3)A maintenance program should consist of:- (handbuk-147)a)maintenance planning documentb)approved maintenance schedulec)maintenance manual

*d)all4)The operator cannot operate an aircraft unles its maintained and released to service by:- (hb-147)*a)part 145-amob)part 146-amoc)part 155-amod)none

5)Approved maintenance schedule are of how many types:- (hb-148)a)3b)4*c)2d)6

6)The arm distance always measured in :- (15a-54)a)cmb)m*c)inchesd)none7)Moment is the product of :- (15a-54)a)wt*datumb)datum*arm*c)wt*armd)only b) is correct

8)Empty weight does not include:- (15a-56)a)airframe and powerplantb)fixed ballastc)residual fuel and oil*d)sand ballast

9)3 ways in which maintenance actions can be organised are:- (hb-148)a)block,unequalized,never exceed maintenanceb)block,equalized,exceed maintenance*c)block,equalized,never exceed maintenanced)none10)The primary maintenance process are:- (hb-150)A)hard timeb)on conditionc)condition monitoring*d)all

11)Lightning strike damage is generally found at the :- (hb3-129)a)wing tipsb)leading edge of wingsc)only 1 is correct*d)both a and b are correct

12)if the landing gear was extended when the lightning strike occurred which parts of the gear is examined:- (hb3-130)*a)lower partb)upper part

c)middle partd)all

13)Radio waves are :- (hb3-130)a)ionizing electromagnetic radiation*b)non-ionizing electromagnetic radiationc)electromagnetic radiationd)none

14)Modifications can be classified as:- (hb2-153)a)major modificationb)minor modificationc)mandatory modification*d)all

15)major modification can be done by:- (hb2-153)a)manufactureb)regulatory authority*c)both a and b d)none16)Super high frequency and extremely high frequency waves range between:- (hb-131)*a)3GHz-300Ghzb)1GHz-100GHzc)6GHz-600GHzd)10GHz-100GHz

17)the strength of the electromagnetic energy in radio waves depends on the :- (hb-131)a)Frequency of the waves *b)frequency and intensity of the wavesc)intensity of the wavesd)length of the waves

18)Useful load is given by:- (15a-56)a)max gross wt+empty wt.b)empty wt-max.gross wt*c)max gross wt-empty weightd)none

19)MAC of a constant chord wing is always:- (15a-37)*a)equal to the actual chord of the wingb)greter than actual chord of the wingc)smaller than actual chord of the wingd)eother b or c

20)MTCS :- (hb2-153)a)Major modification involves design change b)minor modification involves no safety concernsC)only a is correct*d)both a and b is correct

21)A part that has been confirmed as conforming to the receipt requirement is placed into :- (hb2-157)*a)bonded storeb)quarantine storec)unbounded stored)all

22)The coaxial cables that are used I the communication equipment are sheathed with :- (hb3-131)a)metallic tubeb)metallic rod*c)metallic braidd)none

23)Over-Stressing may also be caused by:- (hb-132)a)landing with driftb)landing in an abnormal attitude*c)both are correctd)none

24)In preparation for rigging checks the aircraft has to be leveled:- (hb-135)a)longitudinallyb)laterallty*c)both 1 and 2d)none

25)Take off wt is indicated by:- (15a-56)a) empt wt---tare wtb) ramp wt+ empty wt*c) ramp wt—fuel consumed during taxingd) tare wt+ramp wt

26)After transit for inspection the parts are stored in :- (hb2-157)a)bonded store*b) quarantine storec) unbounded stored)none

27)which angle a wing or a tail plane is inclined outwards and downwards relative to the lateral datum:- (hb-135)a)dihedral angle*b) anhedral anglec)incidence angled)none

28) Incidence angle are usually checked at aminimum :- (hb-136)a)one positionb)three positionc)five position*d)two position

29)MTCS:- (15a-58)a)Zero fuel wt does not include wt of the passenger and crew

b)Zero fuel wt is minimum wt of the aircraft without fuel*c)it includes wt of cargod)none

30)No aircraft will be granted a C of A without first having a valid :- a)Cof R*b)Type certificate c)bothd)none

31)MTCS(15a-56)a)operational wt of aircraft includes payload & fuel loadb)empty wt – payload = zero fuel wt*c)take off wt > landing wtd)zero fuel wt – usable fuel=ramp wt

32)Type certificate is issued by:-*a)regulatory authorityb)operatorc)manufacturerd)all

33)MTCS:-(HB-157)*a)bonded store must be completely & physically separate from quarantine storeb)defective parts must be kept in bonded storec)the quarantine store must have filling & recording systemd)all

34) Engines are usually mounted with their thrust line parallel to the horizontal plane of aircraft(HB-137)a)lateral datumb)longitudinal datum*c)only b is correctd)both a&b are correct.

35)On small aircraft,symmetry measurements are usually taken using(HB-137)a)iron measuring tapeb)copper measuring tape*c)steel measuring taped)none of the above

36)_____________ should be placed ahead of forward C.G and __________ weight behind the rearward C.G:- (15a-66)*a)maximum,minimum wt.b)minimum ,maximum wt.c)minimum,minimum wt.d)none

37)MTCs with respect to wt and balance:- (15a-61) STATEMENT 1-empty the fuel till o reading

STATEMENT 2- DRAIN ALL ENGINE OIL INCLUDING RESIDUAL*a)Only 1 is correctb)only 2 is correctc)bothd)none

38)The floor under each plumbob point is marked with :- (hb-137)a)a vertical line b)horizontal line*c)acrossd)none

39)When the brakes are used to reduce the speed of the aircraft on the ground the kinetic energy is transformed into:- (hb-139)a)mechanical energyb)electrical energy*c)heat energyd)none

40)which certificate is required before flight after any maintenance or any rectification work:- *a)CRSb)FRCc)Cof Ad)C of R

41)MTCS regardin MEL:-a)Mel is based on MMelb)MEL must be approved by regulatory authorityc)MEL must be no less restrictive than MMEL*d)all

42)Examintaion of something to establish its conformity with its approved standard is called :- (hb2-165)*a)inspectionb)modificationc)repaird)none

43)After how many hours one should approach the landing gear after the aircraft has made a high energy stop:- (hb-139)a)atleast 4 hrsb)atleast 3 hrsc)atleast 2 hrs*d)atleast 1 hrs

44)Which information is not given in type certificate or the data sheet or in a/c specification:- (15a-60)a)C.G locationb)leveling meansc)baggage capacity*d)max take off wt

45)Which type of weighing scales are used for weight and balance :-a)platformb)portablec)electrical*d)all

46)Operational techniques and activities that sustain a product or service to special requirements is called:- (hb2-165)a)quality*b)quality controlc)quality assuranced)none

47)Program used to monitor the performance of an organization and institute correction is:- (hb2-166)a)quality control*b)quality assurancec)both d)none

48)An aircraft is weighed with wheels placed on scales,what is the first thing to be done:- (15a-61)*(a)release the brakesb)replace inspection panelsc)to remove excess dirt from the a/cd)none

49)Which is true in case of electronic load cell:- (15a-70)a)these are strained gagesb)placed between jacks and a/c structurec)its resistance changes with the amount of the pressure applied to them*d)all

50)C.G is computed by:- (15a-64)*a)total moment/total wtb)total wt/total momentc)arm/total wtd)moment*arm

51)C.G in % of MAC is given by :- (15a-59)a) (H-C)/x *100b)(X-C)/H *100*c) (H-X)/C *100d)none

where H=dist from datum to EWCGX=dist from datum to MAC leading edgeC=length of MAC

52)Tare weight includes:- (15a-59)a)jacks

b)blocksc)chocks*d)all

53)The tyre must be serviced and reinflated with nitrogen within :- (hb3-141)a)30 flying hrs’b)28 flying hrs*c)25 flying hrs’d)20 flying hrs

54)Volcanic ash is :- (hb-142)a)very fineb)highly abrasivec)can erode surface finishes*d)all

55)Drops of free mercury will show on a radiograph as small “- (hb-143)a)black spots*b)white spotsc)green spotsd)red spots

56)Static discharge damage will usually be found at :- (hb3-129)a)wing tipsb)T.E c)antenna*d)all

57)The tail unit can whip during particularly:- (hb3-134)a)soft landing*b)hard landingc)normal landingd)none

58)Additional maintenance procedure may include :- (hb2-169)a)structural samplingb)corrosion control programc)a/c weighing*d)all

59)Maintenance planning document forms the basis of :-*a)approved maintenance scheduleb)maintenance manualc)MELd)all

60)Operating C.G range indicates :- (15a-57)a)dist. b/w datum and forward cg limitb)dist b/w datum and rearward cg limit

*c)dist b/w rearward and forward cgd)none

GEN ENGG.-2D general1)Which fracture tend to occur suddenly with little or no plastic deformation? (H.B-Pg.151)a)ductile fracture *b)brittle fracture c)both a and b d)none2)Which of these occur where a mould is filled with metal at too low temperature and the flow becomes sluggish?a)inclusions b)weld metal crads *c)cold shuts d)porosity3)Which test based on conductivity are often the best way of determining the extent of heat damage in materials?*a)eddy current test b)ultrasonic c)both a and b d)none4)The proof load limit is usually set at .a)1.25 *b)1.125 c)1 d)1.55)The AMM is divided into chapter/system,section/subsystem and subject and subject/unit according to which system.*a)ATA-100 system b)ATA-120 system c)both a and b d)none6) A critical bolted joint is any bolted joint where stress levels are? * a)High b)very high c)low d) very low7 ) Before inserting the bolt it must ensure that?

a) Parts are properly assemble db) There is misalignment.c) There is no misalignment.d) *Both a & c

8) Fatigue damage is created by?*a)constant application of stress. b)electro chemical corrosion c)repetitive stress cycle d)all of the above.9) which is also known as “fault diagnosis “? *a)trouble shooting b)maintenance c)assembly d)prods10) which makes the rectification task much easier particularily when maintenance computer fault code has identified it?a) black boxes b)line replacement units *c)either a or b d) both a & b11) The structural insulation in the structural repair manual indentify the class of structure either by- a)Hatching code b)color code c) both a & b *d) either a 0r b.12) Which type of backing plates should be used where possible to stop the travel of cutting tools and protect underlying structure- *a) stainless steel b) iron c)aluminum d) copper13) Certificate of release to service must be signed by- a) technician * b) certifying engineer c) pilot d)QCM 14) A/C structure may be designed on which of these concept- a) fail-safe b) damage tolerance c) safe-life *d) all are correct15) In modern A/C design safe life construction is usually combined with which construction? *a)damage tolerance b)fail safe c)both a&b d) none16) Primers contains a corrosion inhibiting compound such as- *a)zinc chromate b)methane c)epoxy d) znso417) Which electrolyte process produce a thicker oxide film that is more resistance to corrosion and abrasion- a)alodizing *b) anodizing c)chromating d)alclad18) In chemical inhibition process steel are treated with a) chromate treatment b) fluoride treatment *c) phosphate treatment d)All19)Which is a rapid chromate treatment used for corrosion protection on Al-alloy and is often used to repair anodized film *a) Alochrome 1200 b)Alochrome 1000 c)varnish d)none20) Non-etch type priming paints contain- a) barium b)zinc-chromate *c)either a or b d)chromic anhydride.21) MTCS with respect to engine start safety precautions a) a/c head must be towards bind b) if external electrical power is used for starting, make secure it can be remove safety

c) area is front of jet inlet must be proper clear of debres*d) all

22) maneuvering area includes ;a) area other than apronb) movement of a/c used for take offc) movement area of a/c used for landing*d) all

23) movement area is ;*a) maneuvering area + apron b) apron- maneuvering areac) maneuvering – aprond) none

24) MTCSa) nose wheel a/c are normally towed backwards.b) in tail wheel a/c , tow bar will be attached to tail wheel and towed forward*c) in tail wheel a/c , tow bar will be attached to tail wheel and towed rearwardd) none25.) when tow operation commences , which will not hold true *a) a/c towing speed should be limited to 5 to 10 miles per hourb) a/c brake application to be kept min.c) a/c should be moved state ahead before entering a turmac d) ensure a/c wing tip & tail will not encounter any obstacle

26. The main jacking points are provided ina)wings and vertical stabilizer.b) vertical stabilizer and fuselage.*c)wings and fuselaged) none

27 ) which method is used for leveling of an a/c.a)plumb bob & indicator plateb) spirit levelc)engineers transit and sighting rods *d) all

28) which jack is used to absorbs a degree of radial movement a) tripod jack *b) bipod jack c) both a & b d) none

29) _____ is used to steady the a/c after liftinga) trestlesb) bipod jack *c) only a is correctd) tripod jack

30) MTCSa) the a/c wt. , fuel state and c.g position must be checked before jackingb) jacks should be inspected for lifting capacityc) during jacking complete a/c all jacks should be raised simultaneously *d) all

31) securing the a/c on ground permanently is called ;

a) parking*b) mooringc) picketing d) none 32) _______ rope is used where more tensile strength is required while tieing the a/c a) monila *b) nylon c) yellow poly propylened) all

33) location of tie down is usually indicated by ;a) red or white paintb) red or yellow paint*c) white and yellowd) yellow white and red 34) MTCS a) tie down cabel are often used to secure a/c , specially for light a/c b) tie down ropes capable of resisting a pull of approximately 3000 lb are used to secure HA c) manila tie down rope are preferable to nylon or Dacron type*d) none

35) deicing/anti-icing fluid with high glycol content is;a) type 1 fluid ( thickened )b) type 1 fluid ( unthickened)*c) type 2 fluid ( thickened)d) type 2 fluid ( unthickened)

36) Method to control ice on leading edge of wing and stabilizer and fin ;*a) pneumatic and thermal b) electrical and chemical c) thermal and chemicald) none

37) ______ ice is formed on a/c when air temp. is below freezing point but water has time to flow before it freezea) Rime ice b) glaze ice c) both a & b *d) only b is correct

38) MTCS a) hot air is used to melt snow b) in icing condition , flap and slat or spoiler are kept extended position *c) hot fluid / water can be used as deicing fluidd) all

39) In taxing light system and flashing white indicate…..a) Clear to taxi b) Stop*c) Return to starting pointd) Taxi clear off runway is used

40) While taxing a/c a) A and c technician can taxi the a/c b) Clearance is taken from ATC and signal-man *c) Both a & bd) None

Gen Eng-2D wt & balance

1)Weight and balance data can be obtained from:- (15 a-54) a) aircraft specification b)aircraft flight manual c)aircraft operating limitation*d)all

2)Datum is an imaginary_ ______ plane from which all _________ measurements are taken for balance purpose:- (15a-54)*a)vertical,horizontalb)horizontal,verticalc)horizontal,horizontald)vertical,vertical

3)A maintenance program should consist of:- (handbuk-147)a)maintenance planning documentb)approved maintenance schedulec)maintenance manual*d)all4)The operator cannot operate an aircraft unles its maintained and released to service by:- (hb-147)*a)part 145-amob)part 146-amoc)part 155-amod)none

5)Approved maintenance schedule are of how many types:- (hb-148)a)3b)4*c)2d)6

6)The arm distance always measured in :- (15a-54)a)cmb)m*c)inchesd)none7)Moment is the product of :- (15a-54)a)wt*datumb)datum*arm*c)wt*armd)only b) is correct

8)Empty weight does not include:- (15a-56)a)airframe and powerplantb)fixed ballastc)residual fuel and oil*d)sand ballast

9)3 ways in which maintenance actions can be organised are:- (hb-148)a)block,unequalized,never exceed maintenanceb)block,equalized,exceed maintenance*c)block,equalized,never exceed maintenanced)none

10)The primary maintenance process are:- (hb-150)A)hard timeb)on conditionc)condition monitoring*d)all

11)Lightning strike damage is generally found at the :- (hb3-129)a)wing tipsb)leading edge of wingsc)only 1 is correct*d)both a and b are correct

12)if the landing gear was extended when the lightning strike occurred which parts of the gear is examined:- (hb3-130)*a)lower partb)upper partc)middle partd)all

13)Radio waves are :- (hb3-130)a)ionizing electromagnetic radiation*b)non-ionizing electromagnetic radiationc)electromagnetic radiationd)none

14)Modifications can be classified as:- (hb2-153)a)major modificationb)minor modificationc)mandatory modification*d)all

15)major modification can be done by:- (hb2-153)a)manufactureb)regulatory authority*c)both a and b d)none16)Super high frequency and extremely high frequency waves range between:- (hb-131)*a)3GHz-300Ghzb)1GHz-100GHzc)6GHz-600GHzd)10GHz-100GHz

17)the strength of the electromagnetic energy in radio waves depends on the :- (hb-131)a)Frequency of the waves *b)frequency and intensity of the wavesc)intensity of the wavesd)length of the waves

18)Useful load is given by:- (15a-56)a)max gross wt+empty wt.b)empty wt-max.gross wt

*c)max gross wt-empty weightd)none

19)MAC of a constant chord wing is always:- (15a-37)*a)equal to the actual chord of the wingb)greter than actual chord of the wingc)smaller than actual chord of the wingd)eother b or c

20)MTCS :- (hb2-153)a)Major modification involves design change b)minor modification involves no safety concernsC)only a is correct*d)both a and b is correct

21)A part that has been confirmed as conforming to the receipt requirement is placed into :- (hb2-157)*a)bonded storeb)quarantine storec)unbounded stored)all

22)The coaxial cables that are used I the communication equipment are sheathed with :- (hb3-131)a)metallic tubeb)metallic rod*c)metallic braidd)none

23)Over-Stressing may also be caused by:- (hb-132)a)landing with driftb)landing in an abnormal attitude*c)both are correctd)none

24)In preparation for rigging checks the aircraft has to be leveled:- (hb-135)a)longitudinallyb)laterallty*c)both 1 and 2d)none

25)Take off wt is indicated by:- (15a-56)a) empt wt---tare wtb) ramp wt+ empty wt*c) ramp wt—fuel consumed during taxingd) tare wt+ramp wt

26)After transit for inspection the parts are stored in :- (hb2-157)a)bonded store*b) quarantine storec) unbounded store

d)none

27)which angle a wing or a tail plane is inclined outwards and downwards relative to the lateral datum:- (hb-135)a)dihedral angle*b) anhedral anglec)incidence angled)none

28) Incidence angle are usually checked at aminimum :- (hb-136)a)one positionb)three positionc)five position*d)two position

29)MTCS:- (15a-58)a)Zero fuel wt does not include wt of the passenger and crewb)Zero fuel wt is minimum wt of the aircraft without fuel*c)it includes wt of cargod)none

30)No aircraft will be granted a C of A without first having a valid :- a)Cof R*b)Type certificate c)bothd)none

31)MTCS(15a-56)a)operational wt of aircraft includes payload & fuel loadb)empty wt – payload = zero fuel wt*c)take off wt > landing wtd)zero fuel wt – usable fuel=ramp wt

32)Type certificate is issued by:-*a)regulatory authorityb)operatorc)manufacturerd)all

33)MTCS:-(HB-157)*a)bonded store must be completely & physically separate from quarantine storeb)defective parts must be kept in bonded storec)the quarantine store must have filling & recording systemd)all

34) Engines are usually mounted with their thrust line parallel to the horizontal plane of aircraft(HB-137)a)lateral datumb)longitudinal datum*c)only b is correctd)both a&b are correct.

35)On small aircraft,symmetry measurements are usually taken using(HB-137)a)iron measuring tapeb)copper measuring tape*c)steel measuring taped)none of the above

36)_____________ should be placed ahead of forward C.G and __________ weight behind the rearward C.G:- (15a-66)*a)maximum,minimum wt.b)minimum ,maximum wt.c)minimum,minimum wt.d)none

37)MTCS with respect to wt and balance:- (15a-61) STATEMENT 1-empty the fuel till o reading STATEMENT 2- DRAIN ALL ENGINE OIL INCLUDING RESIDUAL*a)Only 1 is correctb)only 2 is correctc)bothd)none

38)The floor under each plumbob point is marked with :- (hb-137)a)a vertical line b)horizontal line*c)acrossd)none

39)When the brakes are used to reduce the speed of the aircraft on the ground the kinetic energy is transformed into:- (hb-139)a)mechanical energyb)electrical energy*c)heat energyd)none

40)which certificate is required before flight after any maintenance or any rectification work:- *a)CRSb)FRCc)Cof Ad)C of R

41)MTCS regardin MEL:-a)Mel is based on MMelb)MEL must be approved by regulatory authorityc)MEL must be no less restrictive than MMEL*d)all

42)Examintaion of something to establish its conformity with its approved standard is called :- (hb2-165)*a)inspectionb)modification

c)repaird)none

43)After how many hours one should approach the landing gear after the aircraft has made a high energy stop:- (hb-139)a)atleast 4 hrsb)atleast 3 hrsc)atleast 2 hrs*d)atleast 1 hrs

44)Which information is not given in type certificate or the data sheet or in a/c specification:- (15a-60)a)C.G locationb)leveling meansc)baggage capacity*d)max take off wt

45)Which type of weighing scales are used for weight and balance :-a)platformb)portablec)electrical*d)all

46)Operational techniques and activities that sustain a product or service to special requirements is called:- (hb2-165)a)quality*b)quality controlc)quality assuranced)none

47)Program used to monitor the performance of an organization and institute correction is:- (hb2-166)a)quality control*b)quality assurancec)both d)none

48)An aircraft is weighed with wheels placed on scales,what is the first thing to be done:- (15a-61)*(a)release the brakesb)replace inspection panelsc)to remove excess dirt from the a/cd)none

49)Which is true in case of electronic load cell:- (15a-70)a)these are strained gagesb)placed between jacks and a/c structurec)its resistance changes with the amount of the pressure applied to them*d)all

50)C.G is computed by:- (15a-64)*a)total moment/total wt

b)total wt/total momentc)arm/total wtd)moment*arm

51)C.G in % of MAC is given by :- (15a-59)a) (H-C)/x *100b)(X-C)/H *100*c) (H-X)/C *100d)none

where H=dist from datum to EWCGX=dist from datum to MAC leading edgeC=length of MAC

52)Tare weight includes:- (15a-59)a)jacksb)blocksc)chocks*d)all

53)The tyre must be serviced and reinflated with nitrogen within :- (hb3-141)a)30 flying hrs’b)28 flying hrs*c)25 flying hrs’d)20 flying hrs

54)Volcanic ash is :- (hb-142)a)very fineb)highly abrasivec)can erode surface finishes*d)all

55)Drops of free mercury will show on a radiograph as small “- (hb-143)a)black spots*b)white spotsc)green spotsd)red spots

56)Static discharge damage will usually be found at :- (hb3-129)a)wing tipsb)T.E c)antenna*d)all

57)The tail unit can whip during particularly:- (hb3-134)a)soft landing*b)hard landingc)normal landingd)none

58)Additional maintenance procedure may include :- (hb2-169)a)structural samplingb)corrosion control programc)a/c weighing*d)all

59)Maintenance planning document forms the basis of :-*a)approved maintenance scheduleb)maintenance manualc)MELd)all

60)Operating C.G range indicates :- (15a-57)a)dist. b/w datum and forward cg limitb)dist b/w datum and rearward cg limit*c)dist b/w rearward and forward cgd)none

SUBJECTIVE QUESTIONS:- (Attempt any four) 5 x 4 =20

1. Define NDT and its advantages. 2. Briefly explain dye-penetrant inspection.

3. Write the principle & procedure of eddy current test.

4. Define: a) Echo pulse b) Transmission

5. What are the methods of NDT?6. Write the name of emergency equipment fitted in a/c.7. Explain bonded and quarantine stores.8. Write the checks carried after heavy landings.9. Write the procedure and precaution of towing.10. What are the procedure observe for ground deicing?11. Procedure and precaution of a/c jacking.12. Explain – parking, picketing, towing and taxying.