Module 2 Part 66

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Module Two

1. A force of 10 million Newton's is expressed numerically as

a) 1 MN# b) 10,000 N

c) 10,000,000 MN

!. T"e $ unit of ener%y is t"ea) &ascal &a)b) (att ()

# c) oule )

*. T"e "eat re+uired to c"an%e a li+uid to a %as is called t"e "eat ofa) fusion

# b) apourisationc) condensation

-. An atom wit" * free electrons is said to be# a) trialent

b) coalentc) pentaalent

. T"e specific %raity of a substance is calculated by# a) t"e density of t"e body diided by t"e density of water

b) density of t"e body multiplied by t"e density of waterc) density of t"e body s+uared multiplied by t"e density of water

/. T"e most common refri%erants are# a) water, ammonia, freon

b) water, freon, carbon dioxidec) ammonia, freon, met"yl bromide

. $n fibreoptics t"e type of cable is c"osen by# a) matc"in% t"e diameter of t"e cable to t"e waelen%t"

b) distance re+uired to trael

c) t"e stren%t" of si%nal needed

. ("at is t"e 2inetic ener%y of an aircraft of mass of ! metric tonnesand "as a elocity of !m3s4

a) ! 2# b) - 2

c) 2

5. ("at is t"e mass number of an element4a) Number of electrons and protons

# b) Number of neutrons and protons

c) Number of electrons and neutrons&a%e 1 6 Mod !

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10. ("at is t"e momentum of a ball of mass ! %rams and "as a elocityof 10cm3s# a) 0.000! 2%m3s

b) !0 2%m3s

c) 2%m3s

11. ("at do you %et w"en you add !7! and 8!a) 7!8

b) !7!8!# c) !7!8

1!. A time period of 10 microseconds is e+ual to a fre+uency ofa) 10 279b) 1 M"9

# c) 100 279

1*. ("en "eat flows from a "ot area to a cold area it is calleda) conection

# b) conductionc) radiation

1-. t"e specific "eat capacity of a %as "eated at constant pressure, w"encompared to t"e specific "eat capacity of a %as "eated at constantolume, is

a) t"e sameb) less

# c) more

1. A %yroscope suffers from apparent wander. T"is is due toa) friction on t"e %imbals and bearin%sb) t"e aircraft flyin% alon% a nort"3sout" trac2

# c) t"e eart"'s rotation

1/. T"e splittin% of a c"emical compound is called# a) analysis

b) bombardment

c) synt"esis

1. T"e +uadrature component of a ector isa) 10o to t"e ori%inal

b) -o to t"e ori%inal# c) 50oto t"e ori%inal

1. 1 Newton is e+ual toa) 1 :oule per secondb) 1 2ilo%ram of force

# c) 1 2ilo%ram meter per second per second

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15. 1 de%ree rise on t"e centi%rade scale will cause aa) 0.511 de%ree rise in ;a"ren"eitb) ** de%ree rise in ;a"ren"eit

# c) 1. de%ree rise in ;a"ren"eit

!0. Adiabatic compression is w"ena) 2inetic ener%y is %ained

# b) no "eat is lost or %ainedc) "eat is %ien off to t"e surroundin%s

!1.

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!5. 1 >alorie is e+ual to a) -00 b) -0 # c) -

*0. 1 ?T@ e+uals# a) 10 oules b) 10 2 c) 10 >alorie

*1.T"e intensity of radiated "eat isa) directly proportional to distance from t"e source of t"e "eat

# b) inersely proportional to t"e s+uare of t"e distance from t"esource of t"e "eat

c) not effected by t"e distance from t"e source of t"e "eat

*!. As a bloc2 of ice is melted to -o>) its olumea) increases

# b) decreasesc) remains t"e same

**. A material wit" a %radually aryin% refractie index is said to "ae aa) step indexb) sin%le index

# c) %raded index

*-. A slu% is a unit of# a) mass

b) wei%"tc) speed

*. $f an ob:ect in air is submer%ed in a li+uid or a %as its wei%"t willa) increaseb) decrease

# c) remain t"e same

*/. As an ob:ect slides down a slope, its# a) 2inetic ener%y increases and its potential ener%y decreasesb) 2inetic ener%y decreases and its potential ener%y increasesc) 2inetic ener%y increases and its potential ener%y increases

*. $f a body starts at rest and reac"es - m3s in * seconds, itsacceleration is# a) ! m3s!

b) 1- m3s!

c) !! m3s!

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*. T"e speed of sound in air at 0o> is approximately# a) **1 m3s

b) 11 m3sc) * x 10m3s

*5. $f a material is loaded excessiely and is permanently deformed, it issaid to be

a) stressed# b) strained

c) stretc"ed

-0. T"e "ei%"t of water re+uired to produce a "ead pressure of 1 bar isa) 5.1 mb) 11.05 m

# c) 10.15 m

-1. T"e $ unit of pressure is t"ea) 2ilo%ram per metre cubed 2%3m*)

# b) Newtons per metre s+uared N3m!) c) >ubic metre m*)

-!. T"e $ unit of force is t"e# a) Newton N)

b) &ascal &a)c) Metre m)

-*. T"e $ unit of elocity is t"e# a) metre per second m3s)

b) metre per second s+uared m3s!) c) metre m)

--. T"e $ unit of momentum is t"e# a) 2ilo%ram metre per second

b) 2ilo%ram 3 metre 2%3m)c) metre s+uared m!)

-. T"e formula for calculatin% stress isa) load multiplied by cross sectional area# b) load diided by cross sectional area

c) area diided by load

-/. A %au%e indicates 1 &$. ("at is t"e absolute pressure4a) 0.* &$b) Bero &$

# c) *0 &$

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-. ;ibre optic cables are capable of transmittin% li%"t ata) * x 10m3s

# b) 1.55 x 10m3s c) 0.55 x 10m3s

-. tep index fibres suffer from# a) dispersion

b) scatterc) attenuation

-5. Attenuated pulses "ae t"eir si9es and s"ape restored by# a) re%enerators

b) opto6isolatorsc) impedance matc"in% transformers

0. Attenuation in fibre optic cables is caused bya) bac2scatterin% and microbends

# b) absorption and scatterin%c) microbends and scatterin%

1. $f a wae traelin% to a point meets a wae traelin% from t"at point,of e+ual fre+uency# a) a standin% wae is formed

b) t"e two waes cancel eac" ot"er outc) t"ey will "ae no effect on eac" ot"er

!. ;or a concae lens t"e ima%e isa) a c"romatic orbb) real

# c) irtual

*. ("at s"ape is a enturi tube4a) radually taperin% to a minimum cross sectional areab) Maximum cross sectional area in t"e centre

# c) Minimum cross sectional area in t"e centre

-. $f a fluid moes slowly it "as# a) "i%" iscosityb) low iscosityc) medium iscosity

. $n a fibre optic flyin% control systema) t"e sensor re+uires electrical power

# b) t"e sensor and t"e transmitter re+uire electrical powerc) t"e transmitter re+uires power

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/. &"otons in a semiconductor are stimulated to produce excessp"otons to be emitted. T"is is a

a) p"otodiodeb) =CD

# c) laser diode

. $n a fibre optic flyin% control system, w"ic" of t"e followin% are used# a) multi mode

b) sin%le modec) dual mode

. A fibre optic cable is attenuated at !5 d?3metre. T"is is referrin% toa) allowable loss

# b) t"e fi%ure allowed w"en calculatin% power %ainc) t"e maximum cable run allowed in t"e system

5. T"e fibre optic receier is a# a) p"otodiode

b) laser diodec) li%"t emittin% diode

/0. Ee%enerators are used in fibre optic systems to reducea) dispersion

# b) attenuationc) random emission

/1. An atom consists ofa) protons and electronsb) protons and neutrons

# c) protons, neutron and electrons

/!. T"e maximum number of electrons in t"e inner s"ell of an atom is# a) !

b) -c)

/*. A %ood refri%erant "asa) "i%" condensin% pressure, "i%" eaporatin% temperature# b) "i%" condensin% pressure, low eaporatin% temperature

c) low condensin% pressure, "i%" eaporatin% temperature

/-. tress is %ien bya) extension per ori%inal len%t"

# b) force per unit areac) force per ori%inal len%t"

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/. An ob:ect acceleratin% down a slope would %ain 2inetic ener%y# a) e+ual to t"e potential ener%y lost

b) %reater t"an t"e potential ener%y lostc) less t"an t"e potential ener%y lost

//. Fuality of sound depends upona) +uality of t"e receierb) pure sound waes bein% produced by t"e source

# c) fre+uency and "armonics of t"e waes bein% produced

/. Temperature is a measure ofa) t"e "eat ener%y of particles

# b) t"e amount of ibration of particlesc) t"e amount of friction produced by two matin% surfaces

/. $n a "eat pump

a) flow across t"e condenser is always in one directionb) t"e compressor %ains "eat

# c) t"e condenser loses "eat

/5. &recession in a %yro isa) inersely proportional to t"e ma%nitude of t"e tor+ues applied

# b) proportional to t"e ma%nitude of t"e tor+ue appliedc) proportional to t"e s+uare of t"e ma%nitude of t"e tor+ue applied

0. &articles ibratin% in air# a) produce waes

b) tend to %ie off "eatc) tend to %ie off li%"t

1. T"e force w"ic" opposes twistin% deformation isa) strainb) s"ear

# c) torsion

!. A %yro wit" a fixed point free to rotate in t"ree axis isa) an eart" %yro

b) a space %yro# c) a tied %yro

*. ("en li%"t rays enter a medium wit" a different refractie index t"ey# a) c"an%e speed

b) c"an%e directionc) reflect

-. A coner%in% lens can focus li%"t rays because# a) it is a sp"ere

b) t"e incomin% rays are already coner%in%

c) t"e li%"t rays trael more slowly at t"e centre&a%e 6 Mod !

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. T"e mass of a proton e+uals t"e mass of aa) beta particleb) electron

# c) neutron

/. >atalystsa) slow down reactions

# b) speed up and slow down reactionsc) speed up reactions

. A force perpendicular to a beam produces w"at type of stress4a) compressie

# b) s"earc) tensile

. ("at temperature scale is used wit" t"e combined %as law4a) centi%radeb) ;a"ren"eit

# c) elin

5. $f a ray of li%"t enters a fibre optic cable wit" a refractie index of 1.,w"at is t"e speed of t"e ray in t"e cable4# a) !00,000 2ilometres per second

b) *00,000 2ilometres per secondc) -00,000 2ilometres per second

0. A %raded index fibre optic cable "as# a) a ariable refractie index across its cross sectional area

b) a sudden c"an%e in refractie indexc) a constant refractie index across its cross sectional area

1. ("ic" of t"e followin% will not transmit pressure4# a) solid

b) li+uidc) %as

!. >"arles' =aw states t"at# a) olume aries directly wit" temperatureb) olume aries inersely wit" temperaturec) olume e+uals pressure x temperature

*. ?oyle's law states t"ata) pressure aries directly wit" olume

# b) pressure aries inersely wit" olumec) pressure e+uals temperature diided by olume

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-. >onection does not occur in# a) solids

b) li+uidsc) %ases

. A mirrora) reflects all li%"t

# b) absorbs a percenta%e of li%"tc) refracts all li%"t

/. $f t"e outer s"ell of an atom is full t"e t"e element isa) unstable 3 reactieb) a %ood conductor

# c) practically inert

. ("ic" law describes t"e relations"ip between potential ener%y,2inetic ener%y and pressure# a) ?ernoulli's law

b) >"arle's lawc) Newton's t"ird law

. Molecules of t"e same compound are "eld to%et"er bya) ad"esie forces

# b) co"esie forcesc) %raitational forces.

5. T"e widt" of a multimode fibre optic cable is# a) 100 Gm

b) 10 Gmc) 1 Gm

50. T"e fundamental fre+uency is t"e# a) 1st "armonic

b) !nd "armonicc) *rd "armonic

51. T"e first oertone of a sound wae is t"ea) 1st "armonicb) fundamental fre+uency

# c) !nd "armonic

5!. 8xy%en "as a alency of# a) !

b) /c)

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5*. A process w"ere olume does not c"an%e is# a) isoc"oric

b) isobaricc) isot"ermic

5-. A process w"ere "eat is not transferred to or from a %as isa) isoc"oricb) isobaric

# c) adiabatic

5. A aryin% refractie index is aa) step index

# b) %raded indexc) sin%le index

5/. T"e furt"er from t"e nucleus t"e s"ells are in an atoma) t"e closer t"e s"ells %et to eac" ot"er

# b) t"e furt"er t"e s"ells %et from eac" ot"erc) t"e s"ells retain t"e same spacin% from eac" ot"er

5. ("at determines an element's identity4# a) T"e number of protons

b) T"e number of neutronsc) T"e number of electrons

5. An isotope of an element will "ae morea) protons

# b) neutronsc) electrons

55. Eefractie index is# a) t"e speed of li%"t in air diided by t"e speed of li%"t in t"e medium b) t"e speed of li%"t in t"e medium diided by t"e speed of li%"t in air c) t"e speed of li%"t in air multiplied by t"e speed of li%"t in t"emedium

100. T"e smallest part of an element isa) a molecule# b) an atom

c) a compound

101. A process w"ere pressure does not c"an%e is 2nown asa) isoc"oric

# b) isobaricc) isot"ermic

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10!. T"e extension of a sprin% can be determined usin%a) >"arles' =aw

# b) 7oo2e's =awc) Newton's !nd =aw

10*. T"e nucleus of an atom containsa) protons and electrons

# b) protons and neutronsc) electrons and neutrons

10-. ("at is t"e speed of li%"t in 2m3sa) * x 10

# b) *00,000c) *000

10. Eelatie density is

# a) density of medium density of water

b) density of waterdensity of medium

c) density of water x density of medium

10/. ("at is t"e boundary layer4# a) T"e layer of still air due to friction) around t"e aircraft s2in

b) T"e outer layer of electrons in an atomc) T"e t"ic2ness of t"e insulation of a cable

10. ("at is atomic mass4a) Number of neutronsb) Number of protons

# c) Number of protons plus t"e number of neutrons

10. An aircraft flies 1*0 nmiles in !" 1mins. ("at is t"e aera%espeed

a) 10 nmiles3"ourb) /00 miles3"our

# c) /00 nmiles3"our

105. A sprin% extends cm to t"e %round and bac2 a%ain !0 times aminute. ("at is t"e period4

a) 13* cycle# b) * seconds

c) cm

110. A solid melted into a li+uid will ta2e up a) t"e same amount of space b) more space# c) less space

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111. A cyclist %oes from rest to 0 m3s in seconds. ("at is t"e aera%eacceleration4

a) 1! m3s!

# b) 10 m3s!

c) m3s!

11!. ("at form of "eat is used to turn a solid into a li+uid4a) specific "eatb) coefficient of "eat

# c) "eat of fusion

11*. ("en a steel bar is oerstressed, w"at is t"e name of t"e point atw"ic" it does not return to its ori%inal form after t"e load is released4# a) yield point

b) ultimate pointc)

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1!0. ! couples wit" ma%nitude ; act a%ainst eac" ot"er. T"e resultantwill be

a) !;b) 6 !;

# c) 0

1!1. T"e "ei%"t of mercury re+uired to %ie 1 bar is# a) /0 mm

b) 00 mmc) 1000 mm

1!!. A essel "as ! ml of water w"ic" produces 10 2&a. $f anot"er 1!ml of water is added, w"at will be t"e pressure in t"e essel

a) -0 2&ab) 0 2&a

# c) /0 2&a

1!*. ! "ydraulic :ac2s wit" different diameters "ae t"e same fluidpressures enterin% at t"e same rate. T"ey will extend at

a) t"e same rate# b) different rates

c) t"e same rate until t"e smaller :ac2 becomes full

1!-. T"e standard for measurin% pressure is# a) H!0o> and /0 mm of mercury b) 0o> and /0 mm of mercury c) 6!0o> and 00 mm of mercury

1!. ("at load can be lifted on :ac2 ?4

# a) 100Nb) !00Nc) *00N

1!/. ("at is t"e period of a fre+uency of - 794a) - seconds

# b) 0.! secondsc) seconds

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1!. A dot rotates around t"e circumference of a circle. $f t"e erticalposition of t"is dot is plotted on a %rap" wit" respect to time t"e resultwill be# a) a sinusoidal waeform

b) a transerse waeform

c) a linear motion

1!. A process w"ere temperature remains t"e same is 2nown asa) isobaricb) isoc"oric

# c) isot"ermic

1!5. ("at is ?oyle's =aw4a) & is proportional to Tb) & is proportional to 13T

# c) & is proportional to 13I

1*0. Dew point isa) t"e temperature t"at condensation occurs w"en "eatin% a %asb) t"e coolin% of %as w"ere no condensation occurs

# c) t"e temperature t"at condensation occurs w"en coolin% a %as

1*1. ("at is t"e speed of li%"t in air at 0J>a) **1 mm3sb) **1 m3s

# c) *00 m3Gs

1*!. A process w"ere "eat is not transferred to or from a %as is 2nownas

a) isoc"oricb) isobaric

# c) adiabatic

1**. 7ow far will li%"t trael in one year4# a) 5.-/ x 101m b) 1. x 1011m c) * x 101m

1*-. Two sound waes of t"e same fre+uency and amplitude are moin%"alf a waelen%t" out of p"ase wit" eac" ot"er. ("at will be "eard4# a) Not"in%

b) Twice t"e olume of one of t"e sound waesc) 7alf t"e olume of one of t"e sound waes

1*. (ater is most dense at# a) H-o> b) 0o>

c) 6-o>

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1*/. ("ic" type of circuit is used w"en t"e temperature of t"e source"as insufficient "eat for t"ermocouple application4

a) Temperature bulbb) ?alanced brid%e

# c) T"ermistor

1*. T"e most common met"od of expressin% pressure is ina) %rams per s+uare inc"b) inc" pounds per s+uare inc"

# c) pounds per s+uare inc"

1*. T"e difference between two pressures is# a) differential pressure

b) acuum pressurec) static pressure

1*5. T"e impact pressure caused by t"e impression of air a%ainst t"eopenin% of a

a) static port is pitot pressure# b) pitot6tube is pitot pressure

c) pitot6tube is static pressure

1-0. tatic pressure is present ina) t"e pitot tubeb) any ram air port

# c) undisturbed air

1-1. ("at tor+ue loadin% would you apply to a nut if t"e force is 0 lbs,exerted ! feet from its axis4# a) 100 lbs.ft

b) !1 lbs.ftc) /00 lbs.ft

1-!. ("en different si%nals are transmitted down a fibre optic core, aret"ey distin%uis"ed by a

a) star couplerb) actie filter

# c) passie filter

1-*. $n a :ac2 wit" a ram only on one side and "ydraulic fluid appliedfrom bot" sides# a) t"e ram will moe to t"e side w"ere t"e ram is, due to pressureactin% on differential areas

b) t"e ram will moe opposite to t"e side w"ere t"e ram is due topressure actin% on differential areas

c) a condition of "ydraulic loc2 exists and no moement will ta2eplace

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1--. @sin% t"e same "ydraulic pressure, t"e force applied by a "ydraulic:ac2 of - s+ inc" piston area

a) will be e+ual to t"at applied by a similar :ac2 of ! s+ inc" pistonarea# b) will be twice t"at applied by a similar :ac2 of ! s+ inc" piston area

c) will be "alf t"at applied by a similar :ac2 of ! s+ inc" piston area

1-. A pressure of 100 psi act on two :ac2s in a "ydraulic system pistonarea ! s+ in and - s+ in

a) t"e smaller :ac2 will exert a force of 0 lb and t"e lar%er a force of! lb

b) t"e two :ac2s will exert t"e same force# c) t"e smaller :ac2 will exert a force of !00 lb and t"e lar%er a force of-00 lb

1-/. on an 8ptical Time Domain Eeflectometer 8TDE),t"e attenuation is

a) deried from a %rap"b) dialed into 8TDE

# c) read from t"e cat"ode ray display

1-. T"e purpose of an accumulator in a "ydraulic system is toa) collect air from t"e "ydraulic fluid, t"us reducin% t"e re+uirement

for fre+uent bleedin%b) reliee excess pressure

# c) store "ydraulic fluid under pressure

1-. $f t"e "ydraulic system accumulator "as a low air pressure, it willcause# a) rapid pressure fluctuations durin% operation of serices

b) rapid moement of t"e operatin% :ac2sc) slow build up of pressure in t"e system

1-5. T"e specific tor+ue loadin% for a bolt is 0 lbs.ins but an extensionof !K is needed to reac" t"e bolt in addition to t"e K tor+ue wrenc".("at will t"e actual readin%4

a) - lb.ins # b) -0 lb.ins

c) /0 lb.ins

10. $f 100 psi "ydraulic pressure is pumped into an accumulator, wit"a pre6c"ar%e air pressure of 1000 psi t"e %au%e will read

a) !00 psib) 1000 psi

# c) 100 psi

11. A compressor increasesa) 2inetic ener%y

# b) potential ener%y

c) moin% ener%y&a%e 1 6 Mod !

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1/1. A freely fallin% body, fallin% from a "ei%"t of !2m, and assumin% % L10m3s!, will stri2e t"e %round in a time of# a) !0s

b) 0s

c) -00s

1/!. ("at is t"e an%ular elocity of a s"aft rotatin% at *00rpm inradians3second4

a) pi radians3secondb) !pi radians3second

# c) 10pi radians3second

1/*. $f a mac"ine "as a mec"anical adanta%e of 10 and a elocity ratioof !0, t"e efficiency of t"e mac"ine is

a) !

# b) 0.c) !00

1/-. T"e force t"at acts on a body to cause it to rotate in a circular pat"is called t"e

a) centrifu%al force# b) centripetal force

c) inertia force

1/. A temperature of -1 de%rees ;a"ren"eit is, in >enti%rade is# a) de%rees

b) 5 de%reesc) de%rees

1//. 7eat is defined asa) t"e stored ener%y in a "ot body

# b) ener%y in transitc) a "i%" temperature

1/. An aircraft of ! metric tones uses 00 2ilo:oules 2inetic ener%y toma2e an emer%ency stop. $ts bra2es apply a force of 10 2iloNewtons.

("at distance does it trael before it comes to a stop4a) -0m# b) 0m

c) 00m

1/. ("at is t"e smallest particle of matter t"at can exist in nature4a) A molecule

# b) An atomc) An isotope

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1/5. A positie iona) "as extra electrons

# b) "as missin% electronsc) is a radioactie isotope

10. Eadiant "eat# a) "eats up t"e interenin% medium

b) does not "eat up t"e interenin% mediumc) is %enerated by fast moin% electrons

11. A pilot re+uests 5.! tones of fuel. T"e bowser drier reports to t"epilot t"at t"e specific %raity is 0., w"at will t"e uplift be4

a) */0 liters# b) 1100 liters

c) 5!00 liters

1!. A molecule wit" li2e atoms is said to be aa) compound

# b) elementc) neutroid

1*. pecific %raity is measured in# a) is measured in %3m*

b) is measured in %3mc) "as no units

1-. Two elements in t"e same substance is said to be a# a) compound

b) elementc) mixture

1. A mass on a sprin% nearly "its t"e %round !0 times a minute, itsfre+uency is a) * cycles per second# b) 13* cycle per second

c) !0 cycles per second

1/. A process w"ere "eat is %ien off to its surroundin%s is called a) Adiabatic# b) $sot"ermal

c) $sobaric

1. A body traellin% at !0 m3s accelerates to */ m3s in seconds, w"atis its acceleration4

a) m3s!

b) - m3s!

# c) ! m3s!

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1. Temperature is a measurement of t"ea) amount of 2inetic ener%y stored

# b) amount of ibration in particlesc) amount of "eat possessed by a body

15. A coner%in% lens can focus because# a) its surfaces are sp"erical in s"ape

b) li%"t is slower in t"e centre of t"e lens compared to outerextremities

c) li%"t is already coner%in%

10. $n a flat surfaced mirror, t"e an%le of reflection is# a) e+ual to t"e an%le of incidence

b) less t"an t"e an%le of incidencec) more t"an t"e an%le of incidence

11. A body w"ic" is allowed to expand w"en "eated, expands past t"epressure imposed on it and# a) wor2 is done

b) a force is producedc) not"in% will "appen

1!. A body dropped from 10 m will "it t"e %round in# a) root ! seconds

b) ! secondsc) 1 second

1*. /00 is e+ual to# a) *!/.J>

b) * J>c) * J>

1-. T"e number of protons in an atom is e+ual to t"e number of# a) electrons

b) neutronsc) mass number

1. T"e c"ar%e of an electron is a) positie# b) ne%atie

c) neutral

1/. $n a fiber optic flyin% control system# a) t"e sensor does not re+uire electrical power

b) t"e electronic processor re+uires power before transmissionc) t"e sensor re+uires power for t"e electronic processor

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1. $n a multimode fiber optic cable, t"e# a) diameter is %reater t"an t"e waelen%t"

b) diameter is e+ual to t"e waelen%t"c) diameter is less t"an t"e waelen%t"

1. Fuality of sound is dependant on# a) number and pitc" of "armonics

b) fre+uency of t"e supplyc) medium it is traelin% t"rou%"

15. A mass on a sprin% nearly "its t"e %round !0 times a minute. $tstime period is# a) * seconds

b) 13* secondc) cm

150. A mass of -002% moes ! meters wit" a force of -N. ("at is t"ewor2 produced4# a) 1-

b) 10.12c) *.!2

151. ("en %ases c"an%e temperature3pressure, t"e scale used is# a) elin

b) De%rees >enti%radec) De%rees ;a"ren"eit

15!. A alance electron is an electron# a) in t"e outermost s"ell

b) in t"e innermost s"ellc) w"ic" is not wit"in an atom

15*. Molecules of unli2e atoms are combined by# a) ad"esie force

b) co"esie forcec) %raitational force

15-. ("at is t"e difference between "ydro%en, deuterium and tritium4 a) T"e number of protons# b) T"e number of neutrons

c) T"e number of electrons

15. T"e smallest material in t"e unierse isa) an ion

# b) "ydro%enc) "elium

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15/. ("at is t"e atomic number4

# a) *b) -c)

15. ("at is t"e mass number4

# a) b) -c) 5

15. ("at is t"e rate of %raity4# a) 5.1 m3s!

b) 0.51 m3s!

c) 1!. m3s!

155. >onert 100o> to elin a) 1*

b) !*# c) **

!00. ("at is 1 :oule in calories4a) -.1/

# b) 0.!*5c) !!

!01.

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!0-. 12% of water is "eated from 0o> to !o>. Does its olume# a) decrease b) stay t"e same c) increase

!0. A fire en%ine is approac"in% you wit" its siren on. As it passes youdoes its pitc" a) increase# b) decrease c) stay t"e same

!0/. A body rotatin% at an an%ular elocity of radians3sec, wit" a radiusof metres "as a speed of a) Opi meters per second b) meters per second# c) ! meters per second

!0. A mass of -00 2% moes !metres, wit" a force of -N, w"at is t"ewor2 produced# a) 1- b) 10.1 c) *.!

!0. A cylinder filled wit" water to "alf a meter will exert a pressure of a) -.5 pa b) -5 pa# c) -500 pa

!05. A mass of 102% placed ! meters away from a piot will "ae amoment of# a) 15/ NM b) !0 NM c) 0 NM

!10. ! liters of fuel exerts a pressure of 10&a, if a furt"er 1! liters isadded, t"e pressure will now be a) 0&a

# b) /0&a c) -0&a

!11. T"e +uantity of "eat deeloped by burnin% 1 2% of fuel is 2nown as a) radiant "eat b) latent "eat# c) "eat of combustion

!1!. T"e transfer of "eat t"rou%" radiation is ac"ieed bya) warmin% up t"e interenin% medium

b) not warmin% up t"e interenin% medium

# c) t"e application of radioactie isotopes&a%e !- 6 Mod !

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!1*. 1 2( is a) 1./ 7 b) *-1* btu per "our c) */0 oules

!1-. 1000 lb3in!is in an accumulator. $f *000 lb3in!of "ydraulic fluid ispumped in, w"at is t"e pressure on t"e air side4 a) -000 lb3in!

b) 1000 lb3in!

# c) *000 lb3in!

!1. A coner%in% lens coner%es li%"t rays because a) t"e li%"t source is already coner%in%# b) t"e li%"t waes moe slower in t"e centre of t"e lens t"an t"eydo at t"e extremities c) it is not a sp"ere

!1/. >oded li%"t waes of aryin% waelen%t" trael down a fiber opticcable. To separate t"em at t"e ot"er end you would use a) a star couplin%# b) a passie filter c) an actie filter

!1. 6 -0J> in ;a"ren"eit is minus# a) 6 -0J; b) !J; c) J;

!1. Absolute 9ero isa) 0J>

b) !*.1 # c) 6 !*.1J>

!15. A -. 2( electric motor is 50 efficient. 7ow muc" ener%y does ituse in !0 seconds4# a) 100 2 b) 50 2

c) !.! 2

!!0. An optical fiber "as attenuation. ("en usin% an 8TDE# a) dial in t"e 2nown attenuation b) t"e s"ape of t"e cure will tell you "ow muc" attenuation t"ere is c) i%nore it

!!1. 8ne de%ree on t"e >enti%rade scale is e+ual to w"at on t"e;a"ren"eit cale a) 1!J;# b) 1.J;

c) **J;&a%e ! 6 Mod !

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!!!. T"e dew point is a) t"e point at w"ic" air can be "eated b) t"e point w"en air is cooled at w"ic" t"e moisture does notcondense# c) t"e point w"en air is cooled at w"ic" t"e moisture :ust starts to

condense

!!*. ("at are common refri%erant a%ents4 a) Dry ice, met"yl bromide, water# b) water, ;reon, ammonia c) formalde"yde, ammonia, carbon dioxide

!!-. durin% a process of %as "eatin%, no "eat is absorbed or %ien out.$t is

a) isot"ermal# b) adiabatic

c) isoc"oric

!!. durin% a pressuri9in% process, all "eat is %ien away. $t is# a) isot"ermal b) adiabatic c) isoc"oric

!!/. A fractional decrease in olume of a material w"en it is compressedis a) compressie stress b) compressie strain# c) bul2 modulus

!!. T"ere are solids, li+uids and %ases present in t"e unierse andeery unit of t"eirs occupy some space. T"is is called# a) matter b) mass c) compound

!!. A material capable of %oin% direct from solid to %as is a a) substance

b) substrate# c) sublimate

!!5. A particle ibratin% in air produces a) li%"t b) "eat# c) a wae

!*0. T"e composition of t"e atmosp"ere is approximately a) -3 oxy%en and 13 nitro%en b) !3 oxy%en and *3 nitro%en

# c) 13 oxy%en and -3 nitro%en&a%e !/ 6 Mod !

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!*1. Transfer of "eat from a "ot area to a cold area is# a) conduction b) conection c) radiation

!*!. An atom "as t"ree electrons in its outer s"ell. $t is# a) trialent b) tetraalent c) trealent

!**. A ram "as a piston wit" ! s+.in!. Anot"er ram wit" a piston of -s+.in!will# a) double t"e force b) s+uare t"e force c) "ae t"e same force

!*-. An atom deficient of a alency electron is deficient# a) of an electron in t"e outer s"ell b) of a neutron in t"e outer s"ell c) of an electron in t"e inner s"ell

!*. T"e maximum number of electrons in t"e second s"ell is a) ! b) -# c)

!*/. ("at is meant by adiabatic4# a) No "eat crosses t"e boundary b) All "eat crosses t"e boundary c) ome "eat crosses t"e boundary

!*. ("at does an oxy%en atom consist of4# a) &rotons, neutrons and electrons b) &rotons and electrons c) &rotons and neutrons

!*. ("at type of fiber optic cable is used on aircraft4

a) in%le mode# b) Multi mode c) Multi core

!*5. urface molecular attraction between two different molecules is a) co"esie# b) ad"esie c) %raitational

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!-0. T"e atomic mass number is t"e number of# a) protons plus neutrons b) protons plus electrons c) neutrons plus electrons

!-1. An ob:ect traels 1 2m in 1 minute *0 seconds. ("at is itsaera%e speed4# a) !00 m3s b) 100 ms c) !0 m3s

!-!. $%norin% friction, if you let an ob:ect slide down a slope, at t"ebottom a) t"e potential ener%y is more t"an t"e 2inetic ener%y

b) t"e potential ener%y is e+ual to t"e 2inetic ener%y# c) t"e 2inetic ener%y is more t"an t"e potential ener%y

!-*. A pile drier of wei%"t 1000 2%, "its a post * m below it. $t moest"e post 10 mm. Assumin% %raity L 10 m3s!, w"at is t"e 2inetic ener%yof t"e pile drier4 a) - 2 b) 50 2# c) *0 2

!--. ("at fre+uency is a tone w"ic" is - times t"e fundamentalfre+uency4 a) *rd "armonic b) !nd oertone# c) *rd oertone

!-. ("at is t"e standard temperature and pressure for measurin% t"edensity of %ases4 a) !0J> and /0 mm of mercury# b) 0J>and /0 mm of mercury c) 6!0J> and 00 mm of mercury

!-/. $f a %as is "eated and its temperature is raised by 1 w"at "appens

to its olume4# a) $ncreases by 13!* b) Decreases by 13!* c) Eemains t"e same

!-. $f a bloc2 of ice melts in a %lass of water, t"e leel if water in t"e%lass will a) rise# b) fall c) remain t"e same

&a%e ! 6 Mod !

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!-. 7ow muc" force is exerted by piston if it is sub:ected to a pressureof *000 psi and "as surface area of !. m!4# a) 00 N b) 1!00 N c) *000 N

!-5. $ntensity of sound waes a) ary directly as per distance from source# b) aries inersely as t"e s+uare of distance from source c) is not affected by distance

!0. Ten 2ilo%rams is expressed numerically as# a) 10 2% b) 1 M% c) 10

!1. A force of 10 million Newtons is expressed numerically asa) 1 MNb) 10 mN

# c) 10 MN

!!. A milliliter is e+ual toa) one million litersb) one milliont" of a liter

# c) one t"ousandt" of a liter

!*. $f a s+uare "as an area of 5m!, t"e side is a) * m!# b) * m

c) * s+. m.

!-. A mass of *2% wei%"s approximately# a) /./ =?

b) 1.* =?c) 0./ N

!. 100 m is approximately

a) // yards# b) 105 yardsc) !!0 yards

!/. A car moes oer a distance of miles at steady speed in 10minutes. ("at is t"e speed4# a) *0 mp"

b) /0 mp"c) 1 mp"

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!. A spaces"ip traels a distance of -0,000 miles in ! days. ("at isits speed4# a) 10,000 mp"

b) -,000 mp"c) */,000 mp"

!. A cyclist coers a distance of 1,000 m at a constant speed in 50seconds, w"at is "is speed4

a) 10 m3s# b) 1!. m3s

c) 0 m3s

!5. 7ow lon% will it ta2e a car moin% at /0 2m3"r to trael 50 2m4a) -0 minutesb) minutes

# c) 50 minutes

!/0. An aircraft traels at 00 2m3"r for *0 minutes at steady speed. 7owfar does it moe in t"at time4

a) 00 2m# b)!0 2m

c) 1000 2m

!/1. ("ic" of t"e followin% affect t"e elocity of an ob:ect4 a) peed and distance

b) peed and mass# c) peed and direction

!/!. Acceleration inoles# a) c"an%e in speed or direction of moement

b) c"an%e of position wit" timec) steady speed oer a fixed period of time

!/*. ("at acceleration is produced if a mass increases speed from restto 10 ft3sec in seconds4 a) 0 ft3sec!

b) 0. ft3sec!

# c) ! ft3sec!

!/-. A car traelin% at a speed of m3s accelerates at t"e rate of 1 m3s!.7ow lon% will it ta2e to reac" a speed of !0 m3s4 a) !0 secs# b) 1 secs

c) 10 secs

!/. Newtons laws of motion apply to a) solid substances only# b) all substances irrespectie of state

c) %ases and li+uids only&a%e *0 6 Mod !

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!//. ("ic" of Newtons =aws apply to an aircraft w"ic" is acceleratin%down a runway4 a) T"e 1st law# b) T"e !nd law

c) T"e *rd law

!/. ("ic" of Newtons =aws apply to a car w"ic" is slowin% down dueto t"e bra2in% action4 a) T"e 1st law# b) T"e !nd law

c) T"e *rd law

!/. ; L ma is an e+uation w"ic" expresses a) Newtons 1st law# b) Newtons !nd law

c) Newtons *rd law

!/5. ("at force is re+uired to produce an acceleration of m3s!on amass of ! 2%4 a) !. N

b) 10 2%# c) 10 N

!0. T"e ?ritis" unit of mass is a) t"e 2ilo%ram# b) t"e slu%

c) t"e Newton

!1. $f a force of 10 lbf produces an acceleration of !. ft3sec!on w"atmass is it actin%4# a) - slu%s b) ! slu%s c) - lb

!!. ("at is acceleration4 a) Eate of c"an%e of position# b) Eate of c"an%e of elocity

c) Eate of c"an%e of moement

!*. &ower is t"e rate of doin% wor2, it is measured in a) oules x econds# b) oules3econds c) (atts3econds

!-. ;a"ren"eit may be conerted to >elsius by usin% t"e e+uation a) >J L 53 x ;J H *!# b) >J L 35 x ;J 6 *!) c) >J L 35 x ;J 6 *!

&a%e *1 6 Mod !

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!. A ector +uantity is a +uantity w"ic" a) possesses sense only# b) possesses sense, ma%nitude and direction c) possesses direction only

!/. 8ne atmosp"ere is e+ual to a) !.5 inc"es of "% b) 1.!! 2%3m!

# c) 1-. lbf3in!

!. train is calculated by# a) Cxtension P 8ri%inal =en%t" b) 8ri%inal =en%t" P Cxtension c) 8ri%inal =en%t" P tress

!. $n a %ear train t"e Drier "as 100 tpi and t"e Drien as 0 tpi.

# a) T"e drien rotates twice as fast b) T"e drien rotates "alf as fast c) T"e drier and drien rotate at t"e same speed.

!5. $n fiber optics. T"e fiber cable "as a refractie index of 1., w"at isits speed4# a) !00 meters3microsecond b) *00 meters3microsecond c) -00 meters3microsecond

!0. A catalyst in a c"emical reaction does w"at4# a) peeds it up b) lows it down c) >an eit"er speed it up or slow it down

!1. A material, w"ic" "as a aryin% refractie index "as a# a) step index b) sin%le index c) double index

!!. ("at is t"e number of electrons in t"e inner s"ell of an atom4

a) - b) # c) !

!*. ("at form of "eat is used to turn a solid into a %as4 a) pecific "eat# b) =atent "eat c) ensible "eat

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!-. ("en a twistin% force is applied to a bolt, w"at stress is exerted onto t"e "ead4 a) "ear b) >ompressie# c) Torsion

!. ("en you oer stress a steel bar, w"at is t"e point called w"ere itdoes not return to its ori%inal form4 a) Deformation limit b) &lastic limit# c) Clasticity limit

!/. A cyclist %oes from rest to 0m3s in sec, w"at is t"e aera%eacceleration4 a) 1!m3s# b) 10m3s

c) m3s

!. $f "eat is constant, if pressure increases on a li+uid w"at will t"eolume do4 a) $ncreases b) Decreases# c) Eemains constant

!. ("at s"ape is a enturi tube4# a) Narrow in t"e middle b) (ide in t"e middle c) >one li2e

!5. ("at is 1 ?T@ in :oules per 2ilo%ram4 a) 5.1 :oules per 2ilo%ram# b) !*!/ :oules per 2ilo%ram c) -1! :oules per 2ilo%ram

!50. Eadiant "eat of a body, "eated from a radiant source is a) proportional to distance b) inersely proportional

# c) inersely proportional to t"e s+uare of t"e distance

!51. A ray of li%"t t"at traels t"rou%" t"e centre of curature beforebein% reflected, "ow is it reflected4# a) Eeflected t"rou%" t"e focal point b) Eeflected t"rou%" t"e centre of curature c) Neit"er

!5!. ("at will t"e ima%e produced t"rou%" a dier%ent lens be4 a) Eeal# b) Iirtual

c) Ne%atie&a%e ** 6 Mod !

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!5*. ("en a beam of li%"t passes from one medium to anot"er wit" adifferent refractie index, w"at will "appen to t"e beam of li%"t4# a) >"an%e speed b) Total internal reflection c) Total internal refraction

!5-. A fiber optic cable "as different refractie indexes across itsdiameter, it is a) step index# b) %raded index c) sin%le mode

!5. T"e formula for calculatin% s"ear is a) force x area# b) force P area c) force P cross6sectional area

!5/. >ombined %as law relates olume, pressure and# a) temperature b) elocity c) density

!5. An aircraft of ! metric tones lands wit" -00 2ilo:oules of ener%y, 102iloNewtons of force is applied at t"e bra2es, "ow far does t"e aircraftta2e to stop4 a) -00 M# b) -0 M c) 00 M

!5. $f a car traels 12m in 1 Q minutes, w"at is it elocity in m3s4# a) !00 m3s b) 10 m3s c) 100 m3s

!55. T"ree common types of refri%erant are# a) dry ice, freon, ammonia b) ammonia, freon, met"yl bromide

c) dry ice. Met"yl bromide, ammonia

*00. T"e "eat re+uired to c"an%e a li+uid to a %as at constanttemperature is t"e "eat of a) fusion# b) apori9ation c) condensation

*01. An atom wit" a full outer s"ell is a) a %ood conductor# b) practically inert

c) a %ood insulator&a%e *- 6 Mod !

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*0!. =i%"t traelin% from air to water, t"e waes are a) bent more# b) bent less c) not bent

*0*. A pilot re+uests 5.! tones of fuel to be put on board "is aircraft. T"especific %raity of t"e fuel is 0., "ow many liters are put on board4# a) 11 liters b) *! liters c) *5 liters

*0-. An element wit" a full alence s"ell is a) %ood conductor b) ery reactie# c) inert

*0. A force 10 N is placed ! Meters from a piot point, w"at is t"emoment4 a) 15/ N.M.# b) !0 N.M. c) 0 N.M.

*0/. T"e "eat %ien off by burnin% a 12% bloc2 of wood is a) latent "eat# b) radiant "eat c) transmissie "eat

*0. $f a li%"t is beamed at a flat mirror w"at is t"e an%le it reflects at4# a) An%le of incidence b) Eeflectie index c) Eeactie an%le

*0. $n a %raded index multi mode fiber is t"e refractie index a) "i%" b) low# c) alternates "i%" and low

*05. A fiber optic cable is attenuated at !5d?3Metre. T"is is referrin% to a) allowable loss# b) t"e fi%ure t"at "as to be allowed for w"en calculatin% power %ain c) t"e maximum cable run allowed in t"e system

*10. T"e fiber optic receier is a# a) p"otodiode b) laser diode c) li%"t emittin% diode

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*11. T"e standard temperature and pressure for measurin% t"e densityof li+uids is a) 0J> and /0 mm7%# b) -J> and /0 mm7% c) 1J> and /0 mm7%

*1!. T"e standard temperature and pressure for measurin% t"e olumeof li+uids and solids is# a) !0J> and /0 mm7% b) !0J> and 00 mm7% c) 0J> and /0 mm7%

*1*. &ure semiconductors "ae a) many "oles b) lar%e amounts of free electrons# c) few free electrons

*1-. 7!0 in w"at form "olds most ener%y a) $ce# b) team c) (ater

*1. $f a tensile load is placed on a bar it will# a) stretc" b) bend c) crus"

*1/. >ompressibility is a) stress3strain# b) strain3stress c) stress x strain

*1. A radar rotates 1 reolution eac" *0 seconds and uses 10 ofener%y eac" reolution. 7ow many :oules does it use in a day4# a) !. 2 b) !0 2 c) !00 2

*1. T"e usable bandwidt" of a fiber is determined by a) t"e an%le of total internal reflection# b) t"e intermodal dispersion c) t"e waelen%t" of t"e li%"t

*15. A bloc2 of metal is melted. $t will a) increase in olume# b) decrease in olume c) remain t"e same olume

&a%e */ 6 Mod !

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*!0. 7ow would you wor2 out t"e wor2 done by a mac"ine assumin% itis 100 efficient4# a) Mec"anical adanta%e and input b) $nput and output c) Mec"anical adanta%e and output

*!1. A bloc2 slides down a slope. Assumin% t"ere is no friction# a) 2inetic ener%y is %ained at t"e same rate as potential ener%y islost b) 2inetic ener%y is %ained at a %reater rate t"an potential ener%y islost c) potential ener%y is %ained at a %reater rate t"an 2inetic ener%y islost

*!!. pecific %raity is a) 2%3m*

# b) pure numbers c) m3s!

*!*. A body of 10 2% is swin%in% attac"ed at t"e end of a !m pole. ("atis its moment at t"e bottom4# a) 15/ NM b) !0 NM c) 0 NM

*!-. T"e transfer of "eat from a "ot place to a cold place is called a) conection# b) conduction c) radiation

*!. A li%"t aircraft flies in a semi6circle from point A to point ?. $f t"ecircle "as a radius of !02m and t"e time ta2en is *0mins, t"e aera%espeed is4# a) 1!. 2m3" b) 0 2m3" c) 110 2m3"

*!/. T"e landin% speed of an aircraft is - m3s. $f t"e maximumdeceleration is *m3s!t"e minimum len%t" of runway re+uired is a) 1/!m b) */0m# c) -/m

*!. T"e number of radians in a semi circle are a) exactly * b) !pi# c) pi

&a%e * 6 Mod !

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*!. t"e an%ular elocity of 00 rpm is, in rads3seconds is e+ual to a) 1000pi rads3s# b) 1/.// rads3s c) .** rads3s

*!5. T"e wor2 done in liftin% a mass of !000 2% ertically to a "ei%"t of-0 meters is# a) -. 2: b) 0 2: c) 00 2:

**0. $f, wit" a concae mirror t"e ima%e is placed beyond t"e centre ofcurature, t"e ima%e produced will be a) real, erect and lar%er b) real, inerted and smaller# c) irtual, erect and lar%er

**1. T"e power of a lens is calculated from t"e# a) reciprocal of t"e focal len%t" b) product of t"e focal len%t" and its distance from t"e pole c) focal len%t" s+uared

**!. $n a standin% wae t"e point w"ere continuous ibration ofmaximum amplitude occurs is called t"e a) node# b) anti6node c) "armonic

***. t"e name %ien to sounds below t"at w"ic" t"e "uman ear candetect, i.e. below !079 is a) ultra sound b) sonic pitc"# c) infra sound

**-. T"e speed of sound in dry air is **1 m3s. $n a solid t"e speed would# a) increase b) decrease

c) stay t"e same

**. A substance of two or more different atoms is# a) a c"emical compound b) a neutrino c) an isotope

**/. An atom wit" electrons in its outer s"ell is# a) trialent b) pentaelant c) coalent

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**. 1 ( is e+ual to a) !! ?T@# b) 1.*- 7& c) 1000 oules

**. ("at atmosp"eric conditions will cause t"e true landin% speed ofan aircraft to be "i%"est4# a) 7i%" temp, "i%" "umidity b) =ow temp, "i%" "umidity c) 7ead wind, low "umidity

**5. $f a tunin% for2 is struc2 and "eld close to t"e ear and slowlyrotated about t"e ertical axis, in one rotation "ow many times is t"ereno sound4 a) -# b) !

c) ound is audible for t"e w"ole reolution

*-0. ("at type of friction re+uires t"e %reatest force to oercome it4 a) Eollin% friction# b) tatic friction c) Dynamic friction

*-1. ("ic" of Newton's laws relates to t"e formulaR ;orce L mass xacceleration a) 1st# b) !nd c) *rd

*-!. A /000 2% en%ine is lifted off a win% to a "ei%"t 0. meters and t"enpus"ed across t"e "an%ar !- meters. T"e force re+uired to pus" t"etrolley is 1! 2N. ("at is t"e wor2 done to moe t"e trolley4 a) !52# b) !2 c) -M

*-*. ("at is t"e p"enomenon t"at occurs w"en a siren t"at approac"es

you, at t"e point of passin%, t"e pitc" decreases4 a) Eesonance b) Cc"o# c) Doppler effect

*--. Iiscosity is 2nown as# a) t"e internal resistance for a fluid to flow b) fluids flowin% in a strai%"t line c) Newton's 1st law of motion

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*-. 7ow lift on a win% is produced can be deried from a) >"arles law# b) ?ernoulli's T"eorem c) ;araday's law

*-/. $n a fiber optic system w"ic" components use t"e laser4# a) in%le mode laser for t"e transmitter b) in%le mode laser for t"e oscillator c) in%le mode laser for t"e transmitter and t"e oscillator

*-. in%le mode optic fiber cable will a) cause distortion to t"e li%"t wae at t"e output end w"ic" isdependent upon t"e len%t" of t"e cable b) "ae seeral li%"t rays to pass# c) "ae diameter matc"ed to waelen%t" of li%"t passed

*-. ("en an emer%ent li%"t wae enters a dier%ent lens# a) it will focus be"ind t"e lens b) it will focus beyond t"e lens c) it is s sp"erical

*-5. in t"e concae mirror, li%"t rays parallel to mirror axis will bereflected# a) t"rou%" t"e focal point b) parallel to mirror axis c) bac2 to t"e centre of curature

*0. &rotons "ae# a) positie c"ar%e b) ne%atie c"ar%e c) no c"ar%e

*1. $f %yro is constrained to an external reference and "as t"reede%rees of freedom it is a) a space %yro# b) a tied %yro c) an eart" %yro

*!. in a concae mirror, a li%"t ray passin% t"rou%" t"e focal point willbe reflected a) t"rou%" t"e focus b) parallel to t"e axis# c) on t"e centre line of t"e mirror

**. A passie sensor a) re+uires power for t"e sensor# b) does not re+uire power c) re+uires power for t"e transmitter

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*-. tructures desi%ned to wit"stand compression are called a a) tie# b) strut c) beam

*. 1 &ascal e+uals# a) 1 N3m s+. b) 10N3m s+. c) 10 Nm

*/. A ector is a p"ysical +uantity w"ic" possesses a) a ma%nitude only# b) ma%nitude and direction c) ma%nitude direction and sense

*. &roducin% a compound from commonly aailable materials is

a) analysis b) bombardment# c) synt"esis

*. A different number of nucleons in t"e nucleus of atoms wouldrepresent a) isotones# b) isotopes c) semiconductor

*5. Molecules of matter are in constant motion. T"e amount of ibrationor motion is dependent on# a) temperature b) pressure c) olume

*/0. T"e addition of ! different ectors to produce a ector is called a) sun# b) resultant c) component

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