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COMBINED

QUESTION BANK

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MATHS

1. Yard is equal to :

(i) 6 meter (ii) .9 meter (iii) 1.1 meter (iv) (ii) +also equal to 73 inches

 

2. 1 gallon is equal to the :

(i) 4. liters  (ii) 3.! liters(iii) 26 liters (iv) "one o# the a$ove

3. 1%13.2 milli$ar is equal to

(i) 29.92 inces o# &g  (ii) 29.92 mm o# &g(iii) 2.992 inces o# &g  (iv) 2.992 cm o# &g

4. 1 'ound is equal to

(i) g (ii) .4 g(iii) 2.2 g (iv) "one

. 1 "autical mile is equal to :

(i) 2!% #t (ii) 62!%#t

(iii) 6%!%#t  (iv) %!%#t

6. One micron isa) 10-3 meter   b) 10-6 meter c) 10-9 meter d) None of these

7. One angstrom (A0) is equia!ent to

a) 10-9 meters  b) 10-10 metersc) 10-9 seconds d) 10-10 seconds

34. &draulic sstem is $ased on

(a) charle*s la ($) ,ascal*s la(c) $ole*s la (d) neton*s la

1 -"/ 0 1.% nmiles,h  0 1.11 m,h

1 nautical mile 0 1.11 miles  0 1!2m

 0 6%!% #eet

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1 $ar 0 14. ,si

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AERODYNAMICS

1. hen angle o# attac increase(a) li#t decrease ($) li#t increase (239)

2. 'ur,ose o# #la,s and slats is(a) ncrease or decrease the s,eed o# ac

($) /o decrease landing and tae o## s,eed in turn reduce runalength. (24%)(c) as in (a) and reduce #uel consum,tion(d) as in ($) and used in high s,eed aircra#t onl

3. 5lider has li#t due to(a) high as,ect ratio (242)  ($)high li#t ..(c) smmetrical ing (d)reduce stalling s,eed

4. n #light e8tending #la,s

(a) increase li#t ($) increase li#t and drag $oth(c) increase drag (d) reduces stalling s,eed (24%)

. i#t de,ends u,on(a) velocit o# relative ind ($) densit o# air(c) ing s,an (area) (d) ll (24%)

7. device hich gives lateral control and is moving ith the o,,ositesur#ace o# ing

(a) s,oiler (234) ($) verte8 generator (c) ta$ (d) #la,

!. n straight and level #light(a) li#t 0 drag and thrust 0 eight($) li#t 0 thrust and drag 0 eight(c) li#t 0 eight and drag 0 thrust (236)(d) none o# the a$ove

9. ;or high s,eed ac it has ing(a) thicer than lo s,eed ac($) thinner than lo s,eed ac and thic ing ti,

(c) equal to lo s,eed ac(d) an one o# the a$ove

1%. 'rimar control sur#aces are(a) elevator rudder aileron and leading edge #la,($) elevator rudder aileron and trailing edge #la,(c) elevator slots s,oiler and #la,s(d) elevator rudder and aileron (234)

11. i#t and drag de,ends u,on(a) more cam$ered area o# u,,er side and less o# loer side o# ing (2

43)($) more cam$ered area o# loer side and less on u,,er side(c) $oth a < $(d) o (e) =,eed o# ac (#) "one

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13. ;la$ ta$ is(a) $alance ta$ ($) trim ta$(c) servo ta$ (d) none

14. >entra #in ,rovides(a) longitudinal sta$ilit

($) longitudinal and lateral sta$ilit(c) lateral sta$ilit(d) none o# the a$ove

1. =talling angle critical angle o# attac is the(a) ma8imum li#t angle($) minimum li#t angle(c) as in (a) and at hich se,aration o# air#lo taes #rom u,,ersur#ace o# ing (239)(d) as in ($) and at hich se,aration o# air#lo taes #rom loer sur#ace

o# ing

16. i#t o# ac de,end u,on :

(a) ngle o# attac + =ha,e o# ero #oil($) ngle o# attac + rea o# ero #oil(c) nl area o# ero #oil

17. erodnamic ?entre is the ,oint:

(i) $out hich ,itching moment o# the ero#oil is consant(ii) $out hich ,itching moment o# the ero#oil varies ith the (iii) @oth (i) and (ii)(iv) s in (i) and it is similar to the ?.'.

1!. /he resultant #orce on an ir #oil acts :

(i) 'er,endicular to the chord line(ii) 'er,endicular to the relative ind  (23!)(iii) Aither (i) or (ii)(iv) "one

19. s,ect ratio o# a ing is

(i) s,anaverage chord  (242) (ii) s,anrea o# the ir #oil(iii) s,anmean aerodnamic chord (iv) "one

2%. hich atmos,heric conditions ill cause the true landing s,eed o# anaircra#t to $e the greatest.

(i) o tem,erature ith lo humidit(ii) &igh tem,erature ith lo humidit(iii) &igh tem,erature ith high humidit  (234)(iv) o tem,erature ith high humidit

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21. # all or a signi#icant ,art o# a stall stri, is missing on an air,lane ing aliel result ill $e

(i) Becreased li#t in the area o# installation at high angle o# attac.(ii) ncreased li#t since it increases the li#t $ controlling stall at verlo angles o# attac

(iii) smmetrical lateral control at lo angles o# attac.(iv) smmetrical lateral control at or near stall angles o# attac. (242)(v) ircra#t ill stall(vi) ncreased li#t in the area o# installation on the o,,osite ing at

high angles o# attac.(vii) smmetrical lateral control at lo angles o# attac.

24. ing ith a ver high as,ect ratio (in com,arison ith a lo as,ectratio ing) ill have :

(i) ncreased drag at high angles o# attac(ii) lo stall s,eed (242)(iii) s in (i) so that stalling s,eed increases(iv) 'oor control qualities at lo air s,eed.

2. ings are made CBihedral* to

(i) ncrease the lateral sta$ilit (ii) Becreases the lateral sta$ilit(iii) Becreases the e8cessive dnamic sta$ilit(iv) ncreases the dnamic sta$ilit

27. 'ur,ose o# ventral #in

(i) ateral sta$ilit (ii) Birectional sta$ilit (234)(iii) >ertical sta$ilit (iv) "one o# the a$ove

2!. D/?s

(i) >orte8 generator is used on high s,eed ac at leading edge o# ing(2)

(ii) >orte8 generator is used on slo s,eed ac at trailing edge o# tail,lane(iii) >orte8 generator is never used on slo s,eed ac

29. n ing li#t is ,roduced $

(i) Bro, in ,ressure in u,,er sur#ace o# ing and increase in ,ressure$elo the ing (236)(ii) "egative ,ressure $elo the ing(iii) /he ,ressure $elo and a$ove the ing

3%. n increase in as,ect ratio at a given velocit results at high angle o#attac

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(i) ncrease in drag and higher stalling s,eed(ii) Becrease in drag and a loer stalling s,eed (242)(iii) Becrease in drag and a higher staling s,eed(iv) ncrease in drag and a loer staling s,eed

31. hen aircra#t is #ling at a give air s,eed the mach num$er ill

(i) ncrease ith increase in altitude(ii) Becrease ith increase in altitude(iii) Eemain same(iv) "one o# the a$ove

32. /he desired e##ect o# using inglets on an aircra#t*s ingti,s is to

(i) ncrease the li#t to drag ratio. (244)(ii) Eeduce the as,ect ration

(iii) Eeduce the #ineness ratio.(iv) ,timiFe ing dihedral and im,rove lateral sta$ilit.

33. D./.?.=

(i) /ransition ,oint moves #orard toards leading edge as the airs,eed increases(ii) /ransition ,oint is located at a,,ro8. 3%G o# the chord #rom the .A.(iii) /ransition 'oint does not move ith the change in s,eed(iv) @oth (i) < (ii)

34. =hortest length o# runa is required #or

(i) /ur$o#an (ii) /ur$oHet(iii) /ur$o,ro, (iv) EamHet

3. &igh s,eed air#oils have

(i) /hic cross section (ii) &igh cam$er(iii) Dedium cross section (iv) /hin cross section

36. D?=

(i) Eoll causes a and seer o# ac(ii) Ya causes roll < seer ac(iii) Eoll causes a < a causes roll(iv) "one o# the a$ove

1. "n a straight and !ee! f!ight of an aircrafta) #ift equa!s aircraft $eight (%-36) b) #ift is more than $eightc) #ift is !ess than $eightd) &e'ends u'on sie of aircraft and its !oading

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%. heneer !ift is generated* there is certain amount of drag associated $ith it.+his is ca!!eda) ,orm drag b) in friction dragc) "nduced drag (%-//) d) ha'e drag

3. #ift generated b an airfoi! is maimum at an ang!e of attac of abouta) 0 degrees b) / degreesc) 1% degrees d) ta!!ing a!ue (%-32)

/. #ift generated b an aircraft de'ends u'ona) &ensit* for$ard e!ocit aircraft area b) &ensit* square of for$ard e!ocit and aircraft areac) &ensit* square of for$ard e!ocit and $ing area (%-/0)d) &ensit* for$ard e!ocit $ing area

4. #ift on a $inga) Acts through centre of grait b) Acts ertica!! u'$ardsc) "s 'er'endicu!ar to chord !ined) Acts ertica!! u'$ards through centre of 'ressure (%-40)

6. An ob5ect demonstrates 'ositie dnamic stabi!it if the am'!itude of motiona) &ecreases $ith time  (%-40)  b) "ncreases $ith timec) Neither increases nor decreases d) None of these

7. +he ang!e bet$een the chord of the tai! '!ane and the chord of the main '!ane isno$n asa) #atera! dihedra!  b) #ongitudina! dihedra!c) Norma! dihedra! d) ertica! dihedra!

2. +he !ongitudina! stabi!it of aero'!ane is de'endent ona) osition of 8 of (%-40) b) :oement of 8 of on the main '!ane and fuse!age

c) Area of the tai! '!ane* its as'ect ratio* distance from 8 of d) A!! of these

9. :ar the correct statement for horionta! stabi!ier a) "t a!$as 'roduces nose u' 'itching moment b) "t a!$as 'roduces nose do$n 'itching momentc) ;ither a) or b) de'ending u'on the designd) roides no 'itching moment (%-3/)

10. !i' or side s!i''ing refers to an motion of the Aircrafta) +o$ards u''er $ing b) +o do$n$ardc) +o$ards the !o$er $ing  (%-41) d) A!! of these

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11. oth a) b)

19. hat is required to reduce the !anding s'eed?a) A !o$ minimum drag coefficient b) A sma!! moement of 8 of c) A high ma 8#

d) A high a!ue of 8#3@%@8&

%0. +o chec the ang!e of the main structura! com'onent in re!ation to the!ongitudina! and !atera! ais is no$n as

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a) "ncidence chec b) &ihedra! chec  c) tructura! a!ignment chec   d) ertica!it chec 

%1. ,or f!ight equi!ibrium adequate restoring moment can be achieed b fiing 8of (8entre of rait)a) And 8 of (ressure) together 

 b)

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%9. Ang!e of attac is the(a) acute ang!e bet$een aircraft !ongitudina! ais and cord !ine to $hichaerofoi! is mounted on the aircraft.(b) horionta! acute ang!e bet$een the smmetr of aircraft and $ind directionfrom $hich it touches the aircraft.(c) acute ang!e bet$een the smmetr of the aircraft and the cord !ine of the

aerofoi! section.30. +rim stab contro! used for 

(a) 8hange the ang!e of incident of horionta! stabi!ier (b) 8hange the !ongitudina! dihedra!(c) :oement of contro! surfaces fitted at em'ennage(d) A!! of the aboe

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BASIC ELECTRICITY

ELECTRICAL

1. # I is im,edance r is internal resistance and E is e8ternalresistance then

(a) I0 E + r ($) I2 0 E2 + r2(c) I0 E2 + r 2 (d) "one

2. Eesistance #or a straight conductor does not de,ends u,on(a) length ($) sha,e o# cross section(c) tem,erature (d) material

3. n a ca,acitor(a) ca,acit de,ends on se,aration o# ,lates and measured in #arads($) ca,acit de,ends on area o# ,lates and measured in #arads(c) ca,acit de,ends on nature o# dielectric material(d) all (37)

4. denti# the sm$ol(a) ca,acitor ($) condenser(c) resistor (d) $oth ($) > ohm (c) ohm E (d) > ohm E

11. /he o,,osition o##ered in ? circuit are called(a) im,edence ($) resistance

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(c) inductance (d) ll

12. Eelation $eteen volt am,ere and e$er is given $a. am,volt square Je$er$. am, K volt J e$erc. voltam, J e$erd. "one

13. hich o# the #olloing issued as voltage regulator device(a) car$on ,ile voltage regulator($) magnetic am,li#ier regulator(c) transistor regulator(d) all are correct

14. hen to s,here o# same mass one is +ve charged and other is Jvecharged then ne mass ill(a) change ($) unchanged

1. # the conductor is o# 4 ohm and it stretched to tice o# its length then itsresistance is(a) 1 ohm ($) ! ohm (c) 12 hm (d) 16 hm

16. and @ are $ig and small $atter having same em#. nternal resistance o#$atter is(a) ess than @ ($) 5reater than @(c) equal to @ (d) Lna##ected

17. hich statement is correct(a) #orce is e8erted on charged ,article($) #orce is a,,lied on charged ,article moving along ith magnetic#ield.

1!. Alectrical ,oer and energ is e8,ressed in terms o#(a) -iloatt and ilo att hour res,ectivel (2!)($) att and Houle res,ectivel(c) att and att hour res,ectivel(d) att and "eton

19. 3! inding rotate ith 1!%% r,m #ield having ! ,ole its #erequenc ill$e

2%. ire is connected to constant voltage su,,l hile the length and radiusis dou$led J(a) electric #ield is hal# ($) electric #ield is dou$le(c) heat is unchanged (d) electric #ield remain same

21. &eat energ is converted to electrical energ in

(a) /ransducer ($) /hermocou,le (c) @oth

22. n straight conductor the resistance do not de,end u,on(a) tem,erature ($) length

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(c) material (d) sha,e o# cross section

23. Alectrical $ounding and shielding is used to(a) avoid accumulation o# static charge($) give sta$ilit in radio rece,tion(c) $oth (a) < ($)(271)(d) "one

24. /he or done on a moving charge #rom one ,oint to another is de,endu,on(a) the ,ath taen ($) ,osition o# to ,oints

26. hich o##ers uni#orm magnetic #ield(a) earth ($) $ar magnet(c) circular magnet (d) horse shoe magnet

27. # 2! volt current is ,assed through resistant o# 1% ohm the ,oer

consumed $ the com,onent is ('0> =quareE)(a) 7!.4 att ($) 7!% att(c) 7!4 att (d) 7! att

2!. Ee#er the #igure : hat ill the ohmmeter read(a) 2% ohm ($) % ohm (c) 4% ohm

29. # the r,m o# the driver gear is 6% then the r,m o# driven gear is(a) 12% r,m ($) 1%% r,m (c) 6% r,m (d) 3% r,m

3%. /he resistance o# conductor de,ends on(a) tem,erature ($) length and material(c) cross sectional area (d) all

31. n an inductive circuit(a) current lags $ehind voltage $ 9% deg.($) current leads $ehind voltage $ 9% deg.(c) cross sectional area(d) "one

32. hich one is un,aired

(a) $atter J accumulator ($) diode J "E>(c) ? generator J vorte8 generator (d) AD; J DD;

33. hich one is not ,rimar cell

(a) Incar$on ($) ead acid cell (c) laline cell

34. -ircho##*s la is a,,lica$le in

(a) dc ($) ac

(c) dc ct having resistance (d) $oth a < c

3. Dagnetic #lu8 de,ends u,on(a) no o# turns ($) r,m (c) rate o# cutting #lu8 (d) all

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36. 'oer #actor in d.c. circuit is(a) unit ($) in#inite (c) Fero (d) none

37. Lnit o# electrical energ is(a) -iloatt hour ($) am,ear(c) att hour (d) all

3!. 'oer can $e calculated $(a) >2E ($) l 2E (?) >. (d) all

39. A##ect on the ,art $ varing #requenc in edd current testing(a) sin e##ect ($)

4%. @atteries are connect in series(a) total current is equal to the sum o# the individual current($) total voltage is equal to the sum o# the individual voltage

(c) $oth a < $(d) "one

41. hen three individual resistance are connected in ,arallel to each otherhich o# the #olloing is correct(a) E0E1+E2+E3 ($) E 0 E1 + 1E2 + E3

42. Lnit o# magnetic #lu8 is(a) e$er ($) "eton meter(c) $oth a < c (d) none

43. magnetic #orce alas e8ert on(a) a charged ,article($) a uncharged ,article(c) charged ,article ,arallel to magnetic #lu8

44. Assential ,arameters #or calculating ,oer are(a) #orce ($) distance traveled(c) time doing or (d) all o# the a$ove

4. 1 &' is usual to

(a) 73 electric atts ($) 746 electrical atts(c) $oth a < $ (d) none

46. hm*s la does not hold #or(a) diode ($) "'" transistor(c) &g (d) $oth a < $

47. hen coil o# ire is ,laced horiFontal to the earth sur#ace and a $armagnet dro,,ed #orm the to,(a) #all ith acceleration equal to Cg* 

($) #all ith acceleration less than Cg* 

4!. micro sitch ill o,en or close a circuit ith the movement o# (a) 116 or less ($) 116 or more

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(c) $oth (d) "one

49. n ac circuit consists o# inductance o# 1% ohm ca,acitance 1 ohm andresistance ! ohm the im,edance o# the circuit is ..(a) 6 ohm ($) 1% hm(c) . ohm (d) ! ohm

%. n ac circuit has inductance 3 ohm and resistance o# 4 ohm thenim,edance o# the circuit is(a) 3 ohm ($) 4 ohm (c) ohm (d) 7 ohm

1. nsulation resistance measurement ground continuit and short circuittesting can $e done $:

(i) =hunt t,e ohmmeter (ii) Degger(iii) Dultimeter (iv) ll are correct ( 391)

3. @onding o# ;uel tan done to :

(a) Bischarge static electricit

4. hen dia and length o# ire dou$led heat should $e

(a) dou$led ($) unchanged (9272)(c) "one o# a$ove

. Eesistance o# straight conductor does not de,end u,on

(a) Daterial ($) =ha,e o# conductor (9272)(c) /em, (d) length

6. nduced voltage in coil o# conductor de,end u,on :

(a) "o o# turns ($) ;ield strength(c) =,eed o# rotation (d) all are correct (42)

7. Dar the correct statement regarding transistor :

(a) A @ are #orard $iased and @ ? are reverse $iased.

!. /he value o# dielectric constant C* o# Dica is

(i) 3.% (ii) 6.% (3!)(iii) 6. (iv) 4.2

6%. /o ,rotect vi$rating contact #rom $urning ca,acitor is connected

(i) either across the contact ,oints or in series(ii) across the contact ,oints(iii) in series ith contact ,oints

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(iv) "one

61. /est #or insulators

(i) Bielectric strength test(ii) nsulation resistance test(iii) Bielectric resistance test and $rae don voltage test 

(iv) Bielectric strength test and insulation resistance test

62. ? electrical $us $ars are made o# :

(i) luminum (ii) ?o,,er(iii) luminum and co,,er (31) (iv) "one

63. hich one is near to transducer:

(i) 5enerator and attenuator and /ochelle salt ,ro$c

(ii) Dotor and am,li#ier(iii) ?a,acitor and Fener diode(iv) @atter

64. ;requenc o# .? (=ource):

(i) (ii) 6%(iii) 6 (iv) 7

6. Da8. ;requenc (in #igure) o# reed:

(i) (ii) 112(iii) 6 (iv) 11%

66. &o much ,oer must a 24volt generator #urnish to a sstem hichcontains the #olloing loadsM

Lnit Eatingne Dotor (!%G e##icient) 16% att/hree ,osition lights 2% att eachne heating element am,s

ne anti collision light 3 m,s

(i) 4%2 atts (ii) 3! atts(iii) 4% atts (iv) 472 atts

67. 12 > electric motor has 1%%% atts in,ut and 1&.'. out,ut maintainingthe same e##icienc ho much in,ut ,oer ill a 24> 1&.'. electriclmotor require ("ote 1 &.'. 0 74%)

(i) 1%%% (ii) 2%%%

(iii) %% (iv) s in (ii) and less current ill #lo

6!. &o much ,oer is $eing #urnished to the circuit

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(i) 11% (ii) 7% (iii) 29% (iv) 23%%

69. 24 > source is required to #urnish 4! to a ,arallel circuit consisting o##our resistors o# equal value hat is the voltage dro, across each

resistor:

(i) 12 > (ii) 3 > (iii) 24> (iv) 4! >

7%. # resistor E is disconnected at the Hunction o# E4 and E as shon hatill the ohmmeter read N

(i) 2.76 hm (ii) 3 hm (iii) 12 hm (iv) 6 hm

71. hen calculating ,oer in a reactive or inductive ac circuit the true

,oer is

(i) Dore than the a,,arent ,oer(ii) ess than the a,,arent ,oer in a reactive circuit and more thanthe a,,arent ,oer in an induction circuit(iii) Dore than the a,,arent ,oer in a reactive circuit and less than thea,,arent ,oer in an inductive circuit.iv) ess than the a,,arent ,oer.(364)

72. /he equivalent resistance is

(a) 2 O ($) 4 O(c) 1 O (d) 3 O

73. /he ammeter can $e converted in to voltmeter $ connecting

(a) a resistor in series ith meter coil (3!9)($) a resistor in ,arallel ith meter coilP a ca,acitor in series ith meter coil(d) "one

74. # resistor E is disconnected at the Hunction o# E4 and E as shon hatill the ohmmeter read N

(i) 2.76 O (ii) 3 O(iii) 12 O (iv) 6 O

7. /o ensure the ,ro,er demagnetiFation o# a ,art tae near to the com,assthe de#lection o# com,ass needle more that

(i) 3% degree minutes require demagnetiFation again

(ii) 1 degree no demagnetiFation(iii) 1 degree require com,onent to $e demagnetiFed again and test to$e re,eated(iv) 1 degree minute to require com,onent to $e demagnetiFed

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76. n a circuit the ca,acitor and inductor are in ,arallel then

(i) o voltage dro,(ii) "o current ill ,ass through the ct at resonant #requenc(iii) ?urrent ill #lo in the ct

77. n a circuit the ,oer is 2! att and voltage is 2! volt then the resistenceis

(i) 2! hm (ii) 6 hm (iii) 1 hm

7!. 'oer #actor is

(i) A##ective ,oer -a,,arent ,oer -> (364)(ii) ?osine o# ,hase angle+1

(iii) =ine o# ,hase angle +1(iv) nl (i) is correct

79. n trans#ormer thin laminated core is used #or

(i) reducing ed current loss (9361)(ii) o reductance(iii) 1+2

!%. # the coil length is decreased in the circuit the ,oer

(i) Eemains same (ii) ncreases(iii) Becreases (iv) Iero

!1. /he ordinar e##icienc o# trans#ormer is ma8imum hen

(i) t runs at hal# #ull load (i) t runs at #ull load(iii) t*s culoss equals iron lossNNN(iv) t runs slightl overload

!2. /he resultant resistance $eteen ' < Q as ,er the #igure shon is

(i) 2 hm (ii) 3 ohm (iii) 6 ohm (iv) 1! hm

!3. hich statement is correct #or $oth series < a ,arallel dc cct

(i) 'oers are additive (ii) >oltages are additive(iii) ?urrents are additive(iv) Alements have individual currents

!4. magnitude o# em# a,,lied across the ,rimar

(i) /he num$er o# turns in the ,rimar(iii) /he num$er o# turns in the secondar(iv) /he resistance o# ,rimar < secondar

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  !. -icho##*s voltage la is concerned ith

(i) E Bro,s (ii) @atter AD;() Runction voltage (iv) @oth (i) < (ii) (92!9)

  !6. #use is used in electrical circuit to

(i) indicate the consum,tion o# ,oer(ii) @rea the circuit hen ,oer is o## (iii) Daintain constant current(iv) @rea the circuit in case o# over current

  !7. n an .?. ct the ratio o# --> re,resents

(i) 'oer #actor (ii) oad #actor(iii) ;orm #actor (iv) Biversit #actor

  !!. n small dia ac electrical ca$les onl the recommend stri,,ing toolsshould $e used #or removing the insulation. n no account should a

(i) =ite cutting ,lier to $e used(ii) -ni#e $e used(iii) &eat $e used(iv) n o# the a$ove

!9. /he o,,osition o##ered $ a coil to the #lo o# alternating current is called(disregard resistance)

(i) m,edance (ii) Eeluctance(iii) nductive Eeactance(33) (iv) nductance and #requenc

9%. n ac circuit the e##ective voltage is

(i) ess than the ,redetermined voltage(ii) Aqual to the ma8imum instantaneous voltage(iii) 5reater than the ma8imum instantaneous voltage(iv) ess than the ma8imum instantaneous voltage

91. Lnless otherise s,eci#ied an values given #or current or voltage in anac circuit are assumed to $e

(i) nstantaneous values (ii) Dean values(iii) A##ective values (347) (iv) Da8imum values

92. /he ,otential di##erence $eteen to conductors hich are insulated #romeach other is measured in

(i) >olts (ii) m,eres(iii) ;arads (iv) ?oulom$s

93. /he correct a to connect a test voltmeter in a circuit is

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(i) Aqual to the voltage o# unit(ii) n series ith a unit(iii) @eteen the source voltage and the load.(iv) n ,arallel ith a unit

94. # three resistors o# 3 ohms ohms and 22 ohms are connected in seriesin a 2!volt circuit ho much current ill #lo through the 3ohmresistorN

(i) %.39 am,eres (ii) 9.3 am,eres(iii) 1.% am,eres (iv) %.93 am,eres

9. hich o# these ill cause the resistance o# a conductor to decreaseN(i) Becreases the length or the crosssectional area.(ii) Becrease the length or increase the crosssectional area.

(iii) ncrease the length or decrease the crosssectional area.(iv) Becrease the length and the cross section area.

96. /he voltage dro, in a conductor o# non resistance is de,endent o# 

(i) /he voltage o# the circuit.(ii) ?urrent o# the circuit.(iii) nl the resistance o# the conductor and does not change ith

 a change in either voltage or am,erage.(iv) /he am,erage o# the circuit.

9!. hen calculating ,oer in a reactive or inductive accircuit the true,oer is

(i) Dore than the a,,arent ,oer.(ii) ess than the a,,arent ,oer in a reactive circuit and more than

/he a,,arent ,oer in an inductive circuit.(iii) ess than the a,,arent ,oer.(36)(iv) n o# the a$ove.

99. /rans#er o# electrical energ #rom one conductor to another ithout theaid o# electrical connections

(i) s called induction.(ii) s called radiation.(iii) s called air ga, trans#er.(iv) ill cause e8cessive arcing and head and as a result is im,ractical.

1%%. hen re#erring to an electrical circuit diagram hat ,oint is consideredto $e at Fero voltage

(i) /he circuit $reaer (ii% /he atmos,here re#erence(iii) /he sitch (iv) /he ground re#erence

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1%1. # an electrode is removed #rom the cell and to no its ,otentialdi##erence it is com,ared ith

(i) n electrode in another cell(ii) rea o# ,lates(iii) "um$er o# se,arator

1%2. D/?=

(i) Eehostat is 3 terminal and use lo voltage(ii) 'otentiometer is 2 terminal and use high voltage(iii) Eehostat is 2 terminal and use lo voltage(iv) 'otentiometer is 3 terminal and use lo voltage

1%3. /he magnitude o# induced em# ,roduced in a coil hen a magnet isinserted in it does not de,end u,on

(a) no o# turns in coil($) resistance o# coil(c) magnetic moment o# magnet(d) =,eed o# rotation o# magnet (magnetic strength)

1%4. trans#ormer

(a) am,li#ies the lo in,ut signal to high out,ut signal($) used as a recti#ier(c) used in transducer set(d) $oth (a) < (c) are correct

1%. AD; is ,roduced in generator $

(a) enF*s la ($) Alectromagnetic induction(c) Eight hand #leming rule (d) "one

11%. &igh discharge tester is used to chec the

(a) voltage o# $atter in normal o,erating condition($) e##icienc o# condenser(c) ,enerator out,ut(d) voltage o# $atter to #ind its charge condition and i# recharging isrequired

111. cathode (electron emitter) used in thermionic emission must have#olloing characteristics

 (a) high matching ,oint ($) high matching strength(c) lo or #unction (d) dra e8tension lines

112. n a trans#ormer is ,rimar #requenc changes #rom %&F ee, the ,icvoltage constant then #renquenc(a) increases in secondar $ ratio 6%%

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($) decreases in secondar $ ratio %6%(c) $oth 1 and 2(d) none

113. Dar the correct statement #or trans#ormer(a) mutual induction is oring ,rinci,le($) out,ut voltage de,ends on trans#ormation ratioturn ratio

(c) all o# the a$ove

114. 'recision ire ound resistors are ounded ith(a) car$on ($) co,,er(c) magnanin(27!) (d) all o# the a$ove

11. /rans#ormer used #or :

(a) /rans#er ,oer at same #requenc($) /ransistor circuit

(c) a and $ are correct

116. hich one among #olloing is used to #ind out that hether concernedtrans#ormer is ste, u, or ste,don:

(i) hmmeter  (9364) (ii) >oltmeter and ammeter(iii) mmeter (iv) ll o# the a$ove

117. 'arts o# the ir#rame must $e demagnetiFed

(i) =o the ill not a##ect retraction o# under carriage(ii) =o the ill not a##ect instruments (iii) therise the com,onents ma #ail to o,erate(iv) Be magnetic sign is required onl #or engine ,arts not air #rame

11!. ?urrent trans#ormer is o,ened u,on

(i) =te, u, (ii) =te, don(iii) Lni transition (iv) "one

119. # voltage o# ste, u, trans#ormer is dou$led and trans#ormer ratio is 1:2

then the out,ut through the coil is

(i) =ame (ii) &al#NNN (iii) Bou$led

12%. magnitude o# the em# o# trans#ormer does not de,end u,on

(i) /he magnitude o# em# a,,lied across the ,rimar(ii) /he num$er o# turns in the ,rimar(iii) /he num$er o# turns in the secondar(iv) /he resistance o# ,rimar < secondar

121. /he all da e##icienc o# trans#ormer de,ends ,rimaril on

(i) t*s co,,er loss

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(ii) /he amount o# load(iii) /he duration o# load(iv) @oth (2) < (3)

122. n ammeter (B*rsonavol t,e) to o,,ositel ound s,ring are used #orthe ,ur,ose o#:

(i) ?om,ensating e8,ansion and contraction o# s,rings $ecause o# tem,erature changes (9 322)(ii) Eemoving $aclash(iii) as (i) and having stand $(iv) ll o# the a$ove

123. &o do ou connect an mmeter in a circuit.

(a) across the @atter ($) across the generator(c) in series ith the load (3!9)

124. &o do ou convert the 5alvanometers into voltmeter :

(a) connect high E in series (3!9) ($) lo E in series(c) lo E in ,arallel (d) high E in ,arallel

12. 5alvanometer is trans#erred in ammeter

(a) @ connecting lo resistance in series to the galvanometer($) @ connecting high resistance in series to the galvanometer(c) @ connecting lo resistance in ,arallel to increase range(d) @ connecting high resistance in ,arallel to increase range

126. =hunt ohmmeter measures

(a) lo resistance(391) ($) high resistance(c) ,recision resistance (d) in#inite resistance

12!. Eange o# ammeter can $e increased $

(a) connecting high resistance is ,arallel($) connecting high resistance in series.(c) connecting lo resistance in ,arallel (324)(d) connecting lo resistance in series

129. /he sensitivit o# voltmeter is measured in

(a) hm volt(39%) ($) att (c) ;arads (d) am,ere (e) >oltmeter (#) >oltohm

131. # acid is s,illed over sin #rom an ac $atter then it cleaned ith(a) ater ($) ater < $oric acid(c) ater < $icar$onate o# soda (d) all

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134. /he sensitivit o# a meter movement is usuall e8,ressed as

(i) /he amount o# current required to give #ull scale de#lection(ii) /he amount o# current required to give hal# scale de#lection(iii) s in (i) and ma $e e8,ressed as the num$ers o# mill volts acrossthe meter hen #ull scale current #los through it (324)(iv) s in (ii) and ma $e e8,ressed as the num$ers o# mill volts across

the meter hen #ull scale current #los through it

13. B*rsonval meter movement is a

(i) ?urrent measuring device (3!!)(ii) >oltage measuring device(iii) Eesistance measuring device(iv) @oth (i) and (iii)

1%6. ;or constant voltage S generator used is

(a) series ($) shunt (c) $oth a < $ (d) none

1%7. =hunt motor is used in

(a) 5 and #la, o,eration ($) &draulic motor(c) 5ro meter (d) @oth a < $

1%!. ? induction motor is used in ,lace o# the B? motor $ecause

(a) o# less eight($) it requires less maintenance(c) it is less e8,ensive than dc motor(d) it does not use $rush and commutator

1%9. generator rela has silver and co,,er lining

(a) to ,rovide greater $earing sur#ace and lo resistance($) co,,er made contact and $rea contact and increase li#e(c) #or the ,ur,ose o# s,ar(d) to ,revent arcing

136. n the shunt motor the #ield inding is connected in ,arallel or in shuntith the armature inding

(i) ;ield inding is connected directl across the ,oer su,,l(434)(ii) 'roduces lo starting torque $ut high s,eed at light loads(iii) Eelative s,eed $eteen the #ield and rotor

137. # load is removed #rom shunt motor and is in o,en circuit then thecurrent is

(i) Da8imum (ii) Dinimum(iii) Be,end u,on the a,,arent ,oer

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13!. n single ,hase induction motor

(i) #ield is rotating(ii) rmature is rotating(iii) rmature is stationar

139. series ound d.c. motor ill ,roduce

(i) o starting torque(ii) &igh starting torque(iii) 1+ its s,eed de,ends u,on the value o# load(iv) 2+its s,eed de,end the value o# load(434)

14%. /he astage o# energ in a ,otentiometer can $e minimiFed $ ee,ing

(i) /he resistance as lo as ,ossi$le(ii) /he resistance as high as ,ossi$le

(iii) /he resistance ,otentiometer loer than that o# load(iv) "one

141. n a di##erential rela sstem the charging o# $atter ha,,ens hen 22>generated voltage is there through

(i) >oltage rela coil(ii) Bi##erential rela coil(iii) Dain contactor(iv) @oth 1 < 2

142. n an aircra#t alternator the reverse current cut out rela can $e avoideddue to the ,resence o#

(i) Eecti#ier unit(ii) >oltage regulator(iii) ?urrent limiter(iv) "one

143. n a $rush less alternator there can $e(i) 3 #ield indings < 2 armature indings < one ,ermanent magnet

(ii) 3 #ield indings < 2 armature indings < to ,ermanent magnet(iii) 2 #ield indings < 3 armature indings < one ,ermanent magnet(iv) ne #ield indings < 1 armature indings < one ,ermanent magnet

144. =,eed o# the motor can $e increased $(a) #ield inding($) Ksectional area o# the #ield (armature)(c) A8itation inding(d) ll

14. =,eed o# motor increase hen load current decrease $ecause o# (a) #rictional loss $eteen motor*s moving ,arts($) #rictional loss $eteen #ield inding and other ,arts(c) induced $ac em# decreases(449)

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(d) "one

146. 5enerator #requenc de,ends on(a) "o o# ,oles ($) E'D (c) $oth a < $ (d) "one

147. series ound d.c motor ill ,roduce:(i) o starting #orque (ii) &igh starting #orque

(iii) (i) + it*s s,eed de,ends u,on the value o# load(iv) (ii) + it*s s,eed de,end the value o# load(434)

14!. n a single ,hase inductive motor the #ield ,roduced is(i) Eotating #ield(ii) 'ulsating < rotating #ield(iii) 'ulsating stationar #ield(437)(iv) =tationar $ut not ,ulsating #ield

149. /he counter em# is induced in the d.c. motor

(i) rmature(431)(ii) ;ield(iii) @oth 1 < 2(iv) "one

1%. hich o# the #olloing method can $e em,loed #or reversing thedirection o# rotation o# d.c. motor(i) ?hanging the ,olarit o# su,,l to #ield < armature(ii) Lsing s,lit #ield indings(432)(iii) Lsing dou$le,ole dou$le thro sitch(iv) @oth 2 < 3

11. ,ermanent magnet rotar inverter consists o#(i) d.c. generator < a.c. generator(ii) d.c. motor < a.c. motor(iii) d.c. motor < a.c. generator(43)(iv) d.c. generator < a.c. motor

12. thermal sitch as used in an electric motor is designed to

(i) =lo don the s,eed o# motor.

(ii) ?lose the integral #an circuit to allo cooling o# the motor.(iii) ,en the circuit in order to allo cooling o# the motor.(iv) Eeroute the circuit to ground.

13. n a series ound B? generator

(i) /he #ield coils are com,osed o# a #e turns o# large ire(433)(ii) /he #ield coils are com,osed o# more turns o# thin ire(iii) s in (i) and hen the load is increased the voltage decreases(iv) s in (ii) and hen the load is increased the voltage increases

14. n under com,ounded generator has

(i) "oload voltage value less than #ull load voltage

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(ii) ;ull load voltage less than the no load voltage(iii) s in (i) and changes in terminal voltage ith increasing loadde,ends u,on the degree o# com,ounding(iv) s in (ii) and changes in terminal voltage ith increasing loadde,ends u,on the degree o# com,ounding(41%)

1. n a B? generator inter,oles are used

(i) /o reduce #ield distortion(ii) /o s in (i) and the ee, the neutral ,lane ,arallel distorted #ield(iii) s in (i) and the ee, the neural ,lane ,er,endicular to distorted#ield(iv) s in (ii) and im,rove the e##icienc out,ut and service oi#e o# $rushes

16. hich statement is true regarding di##erential sitch(i) t connects the generator to main $us hen generator voltage

e8ceeds the $us voltage $ %.2 to %.4 v(ii) t connects the generator to main $us hen generator voltagee8ceeds the $us voltage $ %.3 to %.6 >.(iii) s in (i) and it disconnects the generator hen nominal reversecurrent #los #rom $us to generator(iv) s in (ii) and t disconnects the generator hen nominal reversecurrent #los #rom $us to generator

17. n shunt motor

(i) /he #ield inding is connected in ,arallel ith armature inding(ii) /he resistance in #ield inding is high and current through the #ieldinding is constant(iii) /he torque ill var onl ith the current through armature(iv) ll the a$ove are correct

19. /o e8ite a sel# e8cited B? generator

(i) B? generator is used initiall to e8ite(ii) t e8ite him sel# ith out source

(iii) B? motor is used

16%. &o man terminals can $e taen out #rom stud(a) one terminal ,er stud($) to terminal ,er stud(c) $oth ac and van are e,t at equal ,otential ith a ire(d) an no o# terminals can $e taen out #rom one stud

161. Biamagnetic material has ,ermea$ilit

(i) greater than one "B "" ;AEEL= DA/= EA ?AB'ED5"A/? (ii) less than one 93%2(iii) ver much greater than one (iv) equal to one

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BATTERIES

1. /he electrolte o# a "cad $atter is the loest hen the $atter is

(i) n a charged condition (ii) @eing charged(iii) n a discharged condition (314) (iv) Lnder load condition

2. &o can the state o# charge o# a nicel cad $atter $e determined

(i) @ measuring the s,eci#ic gravit o# the electrolte(ii) @ measured discharged(iii) @ the level o# the electrolte(iv) "one o# the a$ove

3. hen a charging current is a,,lied to a nicelcadmium $atter the cellsemits gas onl

(i) /oard the end o# the charging ccle.(314)(ii) n the $eginning o# the charging ccle.(iii) hen the electrolte level is lo.(iv) # the are de#ective.

4. /he +ve ,late in discharged "icd $atter is o# (i) "icel hdro8ide(ii) "icel o8 hdro8ide(iii) cdhdro8ide(iv) cdo8hdro8ide

. =torage o# "i?d $atter

(i) @atter #ull charged and electrolte drained(ii) s in 1 clean the terminals(iii) @atter discharged and #ull ith electrolte(iv) Daintain cored ater level also

6. /he active material o# "icd $atter are

(i) "icel hdro8ide(ii) 'odered cadmium and its hdro8ide(iii) 3%G solution o# caustic ,otash(iv) ll o# the a$ove.(314)

7. ircra#t $atteries should $e disconnected as a ,recaution against #ire

(i) hen soldering is carried out adHacent to iring looms or ca$les(ii) hen elding is carried out on ? structure(iii) hen ground run is given ith a e8ternal $atter(iv) hen ? is ,ared in side the hanger

!. ead $atter ca,acit out a#ter initial charge and therea#tera

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(i) ne month (ii) 3 months(iii) 6 months (iv) Aver ear at the time o# ? o# reneal

9. cid o# lead acid $atter neutraliFed ith :

(a) @oric cid ($) @icar$onate o# soda(339)

(c) "one o# a$ove

1%. ? $atter is :

(i) n au8iliar source o# electrical energ(ii) /he main source o# electrical energ in large ?(iii) (i) + the color o# ,ositive ,late in the lead acid $atter is choclet$ron (93%6)(iv) (ii) + (iii)

11. n a leadacid $atter the se,arators have vertical ri$s on the side #acingthe + ve ,late. t*s ,ur,ose is

(i) /o ,rovide electrical conductivit $eteen + ve < ve ,late throughthe electrolte(ii) /o ,rovide a ,ath #or ,late material sediment to settle to the $ottomo# the cell (93%!)(iii) /o ,revent electrical short have +ve < ve ,late(iv) ll are correct

12. /he material < color o# ,ositive ,late in the leadacid $atter is J

(i) '$ 5ra (ii) '$ choclet $ron(iii) '$2 choclet $ron (iv) '$ 5ra

13. tem,erature correction in s, 5ravit o# electrolte is not necessar atthe #olloing tem,

(i) 6 ; (ii) $eteen 7% degree ; < 9% Begree ; (9272)(iii) $eteen 9% degree J 1%% degree ; (iv) ll are correct

14. n ? $atteries are charged $ the #olloing method

(i) ?onstant >oltage method (9313)(ii) ?onstant >oltage varia$le current method(iii) ?onstant current method (iv) n o# the a$ove

1. hite ,oder on a ,ro,erl serviced "i ?d $atter indicates

(i) "ormal o,eration (ii) ver charging (9314)(iii) lader charging (iv) ver#illed electrolte 

16. hat determines the amount o# current hich ill #lo through a@atter hile it is $eing charged $ a constant voltage source N

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(i) /he total ,late area o# the $atter.(ii) /he stateo#charge o# the $atter.(iii) /he am,erehour ca,acit o# the $atter.(iv) "one o# the a$ove.

17. /he ,ur,ose o# ,roviding a s,ace underneath the ,lates in a lead acid $atter*s cell container is to

(i) 'revent sediment $uild u, #rom contacting the ,lates and causing short circuit.(33)(ii) . o# the electrolte in order to ,roved #rom cooling

o# the ,lates(iii) Ansures that the electrolte quantit ratio to the num$er o# ,lates

and ,late area is adequate(iv) 1 < 3 are correct.

1!. /he lead acid cell is said to $e charged com,letel hen

(i) /he cells starts gasing #reel (9313)(ii) 3 consecutive reading o# hdrometer is same(iii) >oltage ,er cell $ecomes 2.2> < a$ove(iv) ll the a$ove

19. "egative ,late o# "i?d $atter is o# (a) ,ure cadmium ($) nicel hdro8ide(c) cadmium hdro8ide (d) none

2%. hich statement is correct(a) $atter terminal voltage is equal to $atter em#.($) @atter terminal voltage is less than $atter em# (c) $atter terminal voltage is more that $atter em#.(d) de,ends on direction o# current #lo.

21. n nicle cadmium $atter

(a) during discharging the current #los #rom the negative ,ole to,ositive ,late and o8gen atoms are driven out #rom the ,ositive ,late($) electrical leaage is measured $ millimeter $eteen cell andcasting

(c) $oth a < $

22. n lead acid $atter tem,erature correction #actor is necessar

(a) #or tem,erature a$ove$elo !% deg ; ( .4 ever 1% deg ,lus orminus)($) #or tem,erature a$ove$elo 1%% deg ;(c) #or tem,erature a$ove$elo 12% deg ;(d) no correction is made

23. hen a ne "icd $atter is installed its cell seal is o,ened and ,ourelectrolte to ensure the #ull charge $atter(a) no charge is required($) charge is given and $oost u, and ()

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($) as in ($) and suddenl installed in ac service(d) as in ($) and a#ter to hours chec the electrolte and installed inservice

24. hat t,e o# $atter charger is recommended #or #inal charging o# "icd$atter

(a) constant current charger($) constant voltage charger(c) $oth a < $(d) an one o# the a$ove

2. "icad $atter is ra,idl charged ith

(a) constant current and varia$le voltage($) constant voltage and varia$le current(34%)(c) varia$le voltage and varia$le current

(d) $oth a < $

26. ;or a $atter to have high am,ere hour ca,acit and high terminalsvoltage

(a) should have lo internal resistance($) should have high internal resistance(c) does not de,end on internal resistance(d) "one

27. Alectrolte used in lead acid $atter

(a) -& ($) Bilute &2=4(c) ?oncentrated &2=4 (d) "one

29. &drogen gas is emits in the $atter

(a) during all times in lead acid $atter servicing($) in "icd $atter at the end o# charging(c) hen $atter is overcharged(d) $oth a < c

3%. n ? $atter #ails to ,er#orm !%G o# its rated ca,acit hich one should$e carried out

(i) ?ell $alancing (ii) Eeccle ?hec(iii) >oltage recover (iv) "one

31. /o neutraliFe acid de,osits in lead acid $atter com,artments and to treatacid $urns #rom chemical cleaners use:

(i) $oric ,oder (ii) mild soa, solution(iii) @aing soda  (93%!)(iv) il solu$le detergent cleaner

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32. ;unction o# antimon in a grid o# leadacid $atter is

(a) to mae ,ossi$le #iner casting($) ,roviding s,ace #or more active material(?) harden the lead and mae it less susce,ti$le to chemical action(d) all the a$ove

33. /he s,. 5ravit o# electrolte in a #ull lead acid charged $atter must $e$eteen

(a) 1.27 to 1.3%% at !% deg ;. ($) 1.23 to 1.2P 1.2 to 1.2 (d) 1.2 to 1.27

34. "egative ,late o# leadacid $atter is made o#

(a) lead (33) ($) lead o8ideP lead ,ero8ide (d) none

3. -& #rom ees is ashed ith(i) ater(ii) @oric acid (iii) Dild soa, ater

36. here $atter or there acids have $een s,illed the a##ected ,arts shouldthen $e $rushed ith a

(i) Biluted cetic acid #or nicel cd $atteries to neutraliFe electroltic(ii) Bilute solution o# sodium $icar$onate #or lead acid $atteries(iii) Bilute solution o# $ora8 and nitric acid #or $oth lead acid and nicelcad. $atteries res,ectivel(iv) (i) and (ii) are correct (33942)

37. Bue to s,aring in con#ined ,lace in the ,resence o# ater hat is,roduced

(i) ?orrosion (ii) Arrosion(iii) "itric acid (iv) =ul,huric acid

3!. /he active material o# "cd $atter are

(i) "icle hdro8ide (ii) 'odered cadmium and its hdro8ide(iii) 3%G =olution o# caustic ,otash (iv) ll o# the a$ove(341)

39. /he electrolte used in the "?B $atter is

(i) a 3%G solution ($ eight) o# -& in distilled ater (341)(ii) 4%G solution ($ eight ) o# -& in distilled ater(iii) %G solution ($ eight) o# oh in distilled ater(iv) "one

4%. .@atter ill not #reeFe until e8tremel lo tem,eratures are reached$ecause(i) /he acid in the ,lates there$ increasing the s,eci#ic gravit

o# the solution.

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(ii) Dost o# the acid is in the solution.(iii) ncreased internal resistance generates su##icient heat to

,revent #reeFing.(iv) Becreased internal resistance does not generating heat to

,revent #reeFing.

41. /o neutraliFe the sur#ace o# "icad $atter com,artment

(a) $oric acidNNNchec ($) ater (c) $aing soda (d) all

/%. 8e!!o'hane is used to 'rotect the Ni-8ad batter from

a) horting bet$een '!ates  b) +herma! runa$ac) Aoid !eaage of e!ectro!te d) A!! of these

/3. icious cc!e is connected to(a) Nice! cadmium batter (b) u!'huric acid batter(c) &r ce!! (d) None of the aboe

//. When applying gen left hand rule, your index finger points in the directionthe lines of magnetic flux travel, your thumb indicates the conductors direction of 

movement, and your second fingure indicates the direcion of induced EMF.

/4. When using the motor right hand rule, your right index finger indicates thedirection the magnectic flux flows, while your second fingure indicates thedirection of current flow and your thumb the direction the coil rotates.

/6. Series wound &8 generator hae 'oor o! regu!ation ca'abi!ities and aretherefore not suitab!e for ac. =o$eer the are suitab!e for situations $here a const

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 '!ate area b) !ate area and is not affected b the distance bet$een the '!ate.c) !ate area and inerse! 'ro'ortiona! to the distance bet$eenthe '!ated) None of these

%. +he correct $a to connect a test o!t meter in a circuit isa. "n series $ith a unit b. >et$een the source o!tage and the !oadc. "n 'ara!!e! $ith unitd. >oth (a) and (c) are correct

3. +'ica! a''!ication of ener diode is asa. ,u!! $ae rectifiers b. =a!f $ae rectifier  c. o!tage regu!ator  d. Am'!ifier 

/. +he method used to ra'id! charge a Nice! 8admium batter uti!iesa. 8onstant current and constant o!tage b. constant current and aring o!tagec. 8onstant o!tage and aring currentd. aring o!tage and aring current

4. otentia! difference bet$een t$o conductors insu!ated from each other ismeasured in

a) Am'ere b) 8ou!omb c) Ohm d) o!t

7. hich term means .001 am'erea) :icro am'ere  b) :i!!i am'erec) Bi!o am'ere d) Nano am'ere

2. Cnit used to e'ress e!ectrica! 'o$er isa) Am'ere b) o!t c) att d) 8ou!omb

9. +ransfer of e!ectrica! energ from one conductor to another $ithout the aid ofe!ectrica! connection isa) "nduction b) Air ga' transfer c) Not 'ossib!ed) ossib!e but $i!! cause ecessie arcing thus not 'ractica!

10. :agnetic !ines of force 'ass most readi! through

a) A!uminium b) 8o''er   c) "ron d) +itanium11. "n a straight conductor* the resistance is not affected b

a) #ength b) +em'erature

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c) ha'e of cross section d) :ateria!

1%. o$er and $or are measured ina) att and force  b) att and 5ou!ec) Am'ere hour and 5ou!ed) ,arad and 5ou!e

1/. +he change in resistance de'ends u'ona) +em'erature b) :ateria! and !engthc) 8ross sectiona! area d) >oth b) and c) are correct

14.  :ost etensie! used materia! in aircraft e!ectrica! cab!es isa) oth b) c) are correct

16. "n a 'ara!!e! circuita) +ota! resistance is !ess than sma!!est resistor  b) +ota! resistance decreases $hen one of the resistance is remoedc) +ota! o!tage dro' is same as tota! resistanced) A!! are correct

17. "f there are DnE numbers of ce!!s* each haing a o!tage of D;E and resistance D

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a) /%000Ω ± 10G  b) /%000Ω ± 4Gc) 1%000Ω ± 4G d) %%000Ω ± 10G

%3. One of the effect of negatie feed bac in am'!ifiers is toa) "ncrease the noise b) "ncrease the harmonic distortion

c) &ecrease the band$idthd) &ecrease the harmonic distortion

%4. +he deice used to measure er high insu!ation resistance of e!ectric cab!e isa) =igh resistance o!tmeter  b) :egger @ "nsu!ation resistance tester c) "ron ane meter d) Ammeter of high range

%6. "f si ce!!s are connected in series of each ; o!ts* the tota! o!tage of the batter $i!! bea) 6;  b) 3; c) /; d) 1%;

%7. 'ecia! test equi'ment com'rising a meter and t$o cab!es each of s'ecific!ength* is required for checing the resistance of bonding. A meter $ide!used * consists of an ohm-meter o'erating ona) rinci'!e of current ratio  b) rinci'!e of o!tage ratioc) None of these

%2. 8e!!'hane is used to 'rotect the Ni-8ad batter froma) horting bet$een '!ates  b) +herma! runa$ac) Aoid !eaage of e!ectro!te d) A!! of these

%9. +$o quantities are said to be in 'hase $ith each other $hena) +he 'hase difference bet$een t$o quantities is ero degrees b) ;ach of them 'ass through ero a!ues at the same time and rise in the samedirectionc) >oth a) b)

d) None of these

30. hen ca!cu!ating 'o$er in a reactie or inductie ac circuit* the true 'o$er isa) :ore than the a''arent 'o$er  b) #ess than the a''arent 'o$er c) As in b) in reactie circuit and as in a) in inductie circuitd) None of these

31. &iodes are used in e!ectrica! 'o$er circuit 'rimari! as

a) $itches  b)

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3%. "f three resistors of 3* 4 and %% ohms are connected in series in a %2 circuit*ho$ much current $i!! f!o$ through the 3 ohms resistor?a) 9.3 am's b) 1.04 am'sc) 0.93 am's d) 10.04 am's

33. hat is the a!ue of a resistance if gien co!our codes as bro$n* b!ac* bro$n*

 b!ac and bro$n.a) 1010 ohms b) 1000 ohmsc) 101 ohms d) 10.1 B ohms

3/. hat is the a!ue of a ca'acitor if gien co!our codes are orange* orange* b!ueand $hite.a) 33n,  b) 33I, c) 33', d) 3300I,

34. +he out'ut of a astab!e mu!ti-ibrator  isa) +riangu!ar $ae b) a$ tooth $aec) inusoida! $ae d) quare $ae

36. "n an osci!!osco'e b aring intensit contro!* $hat actua!! aried interna!!?a) 8athode o!tage b) Anode o!tagec) rid o!tage d) 8athode current

37. +he 'hase difference bet$een o!tage and current in a 'ure!resistie circuit is gien b(A) 00 (>) 900

(8) /40 (&) 1340

32. One micro farad is equa! toa) 0.001 mi!!i farad  b) 100 mi!!i faradc) 1000 mi!!i farad d) 10 mi!!i farad

39. +o smoothen the &8 in rectifier* $e em'!oa) #,  b. =, c) >, d) None

/0. +he o!tage @ 8urrent across the short circuita) J ma " J 0 b) J 0 " J mac) J 0 " J 0d) J ma " J ma

/1. +$o resistances of 14* 1% ohms each are connected in 'ara!!e!across a su''!* giing %7 am'ere* then current through 14 ohm $i!! be

a) %7 am' b) 1% am'c) 14 am'd) 1 am'

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/%. hich '!ating 'rocess 'roide ece!!ent base for 'ainta) 8d K !ating b) n K !atingc) ranodiing d) A!! of the aboe

/3. hich treatment gie ece!!ent base for 'aint

a) 8< K !ating b) areriingc) :eta! s'raingd) n K '!ating

//. +he 'rocess use inc as a medium for '!atinga) areriing b) heradiingc) a!oniingd) >oth b) and c)

4. +he term 10-4 farads meana. 1 mi!i-farad  b. 10 micro-faradc. 10 nano-farad d. None

/6. A ca'acitor consists of t$oa) conductors se'arated b an insu!ator ca!!ed the di-e!ectric. b) insu!ators se'arated b a conductor.c) insu!ators se'arated b air medium.

d) conductors se'arated b air medium.

/7. "n a ca'acitor e!ectric charge is stored in(a) meta! '!ates (b) di-e!ectric(c) both (a) (b) (d) none of these

/2. Cnit of m.m.f. is(a) $eber  (b) gi!bert (c) ma$e!! (d) henr

/9. Lou!e@co!oumb is the unit of (a) e!ectric fie!d 'otentia! ??? (b) 'otentia!(c) charge (d) none of these

40. "n a !ead-acid batter* ecessie formation of !ead su!'hate occurs due to(a) id!eness of batter for a !ong time(b) !o$ !ee! of e!ectro!te(c) 'ersistent under charging(d) a!! of them

41. 8ommon im'urit in a batter e!ectro!te is(a) dust 'artic!e (b) iron(c) !ead crsta!s (d) sodium ch!oride

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4%. Oercharging of !ead-acid batter $i!! cause(a) ecessie gassing(b) !oss of actie materia!(c) increase in tem'erature resu!ting in buc!ing(d) a!! of them

43. +he energ of a ca'acitor haing ca'acitance D8E and o!tage DEis gien b

  (a) 0.4 8%  (b) 8(c) 8% (d) 0.4 8%

4/. One unit of magnetic f!u is gien b  (a) eber  (b) eber 'er meter square

  (c) quare root of eber (d) =ener

44. enerators $ors on the 'rinci'!e of   (a) ,aradaEs !a$ of e!ectromagnetic induction  (b) OhmEs !a$  (c) >iot - seertEs !a$  (d) aussEs !a$

46. +he 8a'acitance of a 'ara!!e! '!ate is gien b  (a) Ac @ d (b) A%8 @ d (c) Ad @ c (d) None

47. "f there are DNE number of ce!!s* each haing o!tage ; andinterna! resistance DrE are connected in series* then the resu!ting e.m.fof the circuit is gien b

  (a) N; o!t (b) ;@N o!t (c) ; o!t (d) N;r o!t

60. +he abi!it of magnet to restore magnetism is ca!!ed

  (a)

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63. > o!tage diision ru!e the o!tage dro' 1 in the circuit $i!! be(a) 1 J (

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c) re'u!sie if direction of the current $i!! be reerse.d) >oth (b) and (c) are correct.

76. +he smbo! re'resents

(a) 8

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23. At the center of a coi!* amount of f!u is concentrated maimum at(a) starting of a coi! (b) end of a coi!(c) center of a coi! (d) remain equa! at a!! '!aces

2/. Negatie '!ate of !ead acid batter is(a) !ead (b) !ead 'eroide

(c) !ead su!'hide (d) s'ong !ead24. !ates of !ead acid batter is made of 

(a)!ead antimon on $hich actie materia! is attached.(b)!ead iron on $hich actie materia! is attached.(c)antimon iron on $hich actie materia! is attached.(d)none

26. ::,. is measured in i!bert and smbo!ied b the ca'ita! !etter.(a) (b) , (c) : (d)

27. o!enoid re!a is o'erated on(a) high current (b) !o$ current(c) high o!tage (d) !o$ o!tage

22.8onstruction of se'arator of a !ead acid batter is made in such a $a that itcircu!ates the e!ectro!te free! around the '!ates in addition it a!so 'roides a 'athfor sediments to sett!e.

(a) at the side of ce!! (b) at the to' of ce!!

(c) at the bottom of ce!! (d) none

29. +herma! 'rotector is used to(a) 'rotect a motor (b) to o'en the circuit automatica!!(c) it o'erates $hen tem'erature is er high(d) a!! of the aboe

90. @ designed for momentari! o'eration

(a) micro s@$ (b) 'ush button s@$(c) togg!e s@$ (d) none

91.

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93. Oi! ca'acitors genera!! restricted to be used in(a) radio transmitting equi'ment (b) radar transmitting equi'ment(c) both  (d) none

9/. "n fied mica ca'acitor the die!ectric is made of

(a) meta! '!ate (b) mica(c) both (a) (b) (d) none

94. :ica 'reents as a die!ectric(a) arching bet$een the '!ates(b) can $ithstand higher o!tage(c) both (a) (b)(d) none of these

96. +he ca'acitor $hich 'roides !arge ca'acitance in sma!! 'hsica! sie is(a) oi! ca'acitor (b) mica ca'acitor  (c) e!ectro!tic ca'acitor  (d) 'a'er ca'acitor 

97. et-e!ectro!tic ca'acitors must be mounted on (a) horionta!! (b) ertica!!(c) an 'osition (d) none

92. +he $oring o!tage of a ca'acitor de'ends on (a) t'e of materia! used as a di-e!ectric

(b) thicness of di-e!ectric(c) frequenc(d) a!! of the aboe

100. o$er factor is the ratio of a) +rue 'o$er @ a''arent 'o$er  b) A''arent 'o$er @ true 'o$er c) ero 'o$er @ true 'o$er d) None of the aboe

101. +ransformer $ors on the 'rinci'!e of a) e!f induction b) :utua! inductionc) ;!ectromagnetic inductiond) :agnetic induction

10%. +he factor* $hich determines $hether a gien transformer is ste''ed u' orstee'ed do$n* is gien b

a) 8urrent ratio b) o!tage ratioc) o$er ratiod) +urns ratio

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103. +he 'ur'ose of iron core in transformer isa) ien e!ectrica! energ from the source b) "so!ates 'rimar $ith secondarc) Loin 'rimar $ith secondard) roides !o$ re!uctance for magnetic !ines of force

10/.   "f the ratio of the transformer in'ut o!tage to the out'ut o!tage is same as theturn ratio then* transformer is said to be a) 40G efficient   b) 110G efficientc) 100G efficient  d) %4G efficient

104. hich of the fo!!o$ing transformer can a''roach 100G efficienta) "ron core transformer  b) ,errite core transformer c) 8o''er core transformer d) None of these

106. +he range of frequenc in the case of audio transformer isa) /0 to %0000 c.'.s b) %0 to %0000 c.'.s (360)c) 100 to 10000 c.'.sd) 10 to 10000 c.'.s

107.

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111. "n radio and radar transmitters $e genera!! 'refer to use(a) Oi! ca'acitor (b)a'er ca'acitor (c):ica ca'acitor (d);!ectro!te ca'acitor 

11%. +he range of mica ca'acitor is(a)40 micro micro farads to 0.0% micro farads(b)10 micro farad to /0 micro farads(c)reater than /0 micro farads(d)None of these

11/. 8!am'er is used toa) 8ut an 'ortion of A8 cc!e b) hift its &8 !ee!c) 8hange the frequencd) Ad5ust the A8 !ee!

114. "n conductor a) a!ence band is em't on! b) 8onduction band is fu!! on!c) >oth are oer!a''edd) >* 8> neer combined

116. +$o resistors (

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1%1. "n one time constant* the ca'acitor charges toa) 36.2G of its maimum a!ue b) 63.%G of its maimum a!uec) 92G of its maimum a!ued) None

*"- +. "- /+.0

"- 10

2"- 1/

0"- *33

1%%. +$o resistances of 14* 1% ohms each are connected in 'ara!!e!across a su''!* giing %7 am'ere.* then current through 14 ohm $i!! bea) %7 am'  b) 1% am'c) 14 am' d) 1 am'

136. hich is true statement about ca'acitor?

a) >!ocs &8  b) A!!o$s &8c) >!ocs A8 d) None

137. "n a series connection

(a)o!tage is same across each e!ement(b)8urrent is same in each e!ement(c)>oth are correct(d)None

132. +he smbo! indicates

(a) 8onductor  (b) 8a'acitor  (c) 8ondenser  (d) ariab!e 8ondenser  

139. "f su''! o!tage J 30* then $oring o!tage of ca'acitor cou!d bea. 90 b. /4 (40G more than su''! o!)c. 40

d. 4414%. "f e!ectro!te from a !ead acid batter is s'!it in the battercom'artment* $hich 'rocedure shou!d be fo!!o$ed

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(a) A''! boric acid so!ution to the affected area fo!!o$ed b the $aterrinse(b) iot-seertEs !a$d) aussEs !a$

%. +he +ension of brushes to 'roide brush 'ressure is a''ro.a) 6 si  b) 2 si c) 10 si d) 1% si

3. A four 'o!e generator $i!! haea) % inter'o!e  b) / inter'o!e(/-11)c) 6 inter'o!e d) 2 inter'o!e

/. "n a 3 'hase sstem* the 'hase $inding is s'aced smmetrica!! so that theo!tage induced isa) 90o a'art  b) 1%0o a'art(/-%1)c) 60o a'art d) 120o a'art

4. +o aoid armature reaction of sma!! &8 generator (1000 $att or !ess) t'e. +hemethod used isa) "nter'o!e :ethod b) >rush setting method

c) both (a) (b)(/-11) d) None of these

6. 8om'ensating $inding is used in series $ith inter'o!e $inding toa) "ncrease the !ife of brushes b) &istortion of fie!dc)

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9. A8 generator $ors on the 'rinci'!e of 

a) ,aradaEs !a$ of e!ectro-magnetic induction b) :utua! inductionc) e!f inductiond) A!! of these

10. +he re!ationshi' bet$een bac emf and a''!ied o!tage in case of a dc motor isgien b

a) ;b J "a

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fo!!o$ing arrangement is made?(a) > re'!acing the s!i' rings of the A.8. generator $ith commutator(390) b) > the addition of etra s!i' ringsc) > connecting a rectifier 

d) None of the aboe

17. +he rotating 'art of a &8 generator is ca!!eda) ,ie!d coi! b. Qoe c. Armature (/-6) d. None of these

12. ariations of &.8. o!tage generated b &.8. generator is ca!!eda) oth d) None of the aboe

%6. +he 'ur'ose of s!otting in armature isa) +o increase mechanica! safet(39%) b) +o increase e!ectrica! safet

c) +o increase both safetd) None of these

%2. "n &8 machine the commutator surface is high! 'o!ished toa)

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d) A!! of the aboe

3%. +he out'ut o!tage of a series $ound &.8 generator ma be contro!!ed ba) Csing a rheostat in 'ara!!e! $ith the fie!d $indings(39/) b) Csing a rheostat in series $ith the fie!d $indings

c) >oth a and bd) None of the aboe+his ind of gen can be used $here constant !oad and constant

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 b) ,ansc) +urbinesd) A!! of these

/0. "f the shunt fie!d of a com'ound generator is connected across both the armatureand series fie!d* then the connection is said to be

a) #ong shunt connection(/-10) b) hort shunt connectionc) ara!!e! connectiond) >oth a and b

/1. +hree $ire generators are designed to de!ier a. %/0 or 1%0 o!ts from either side of the neutra! $ire b. 1%0 o!ts or 360 o!tsc. %%0 or //0 d. >oth a and c

/%. +he distortion of the magnetic fie!d is ca!!eda) Armature reaction(/-10) b) ,ie!d reactionc) >oth a and bd) None of these

/3. ,or 'ara!!e! o'eration* the generators norma!! 'referred area) hunt generators

 b) eries generatorsc) >oth a and bd) 8om'ound generator 

//. "n &.8 generators* a inter 'o!e fie!d coi!s are connecteda. "n series $ith armature $inding b. "n 'ara!!e! $ith armature $indingc. "n series $ith !oad(/-1%)d. "n 'ara!!e! $ith !oad

/4. "n &.8 generators the brushes are a!$as '!aced a!onga) :agnetic neutra! ais b) eometrica! neutra! aisc) >isector of NA and :NAd) +here is no hard and fast ru!e for this

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ELECTRONICS

1. n outer shall o# semiconductor num$er o# electrons are:

(i) 4 (ii)

(iii) 3 (iv) (ii) and (iii)

2. Ienes diode used #or :

(a) >oltage Eegulation ($) s a am,li#ier(c) ll are correct

3. '.". Runction diode not used :

(a) as an am,li#ier

4. =ilicon control Eecti#ier consist :

(a) to terminal ($) three Hunction(c) /o are #orard $iased and to are reversed $ias

. hen tem, increases resistance o# semiconductor

(a) ncreases ($) decreases(c) "one

6. ;or Hunction transistors and vaccum tu$es hich one is correct

(i) the have high in,ut im,edence(ii) the have lo in,ut im,edence (iii) the are most e##icient and are ver chea,er(iv) the have high in,ut and out ,ut resistance

7. /ic or ,ic the correct o,tion : J 5;A/ (a) J ntru,ted 5ate ;ield A##ect transistor@ J @R/ ($) J ndicated 5ate ;ield e##ect transistor? J D=;A/ (c) J @i,olar Runction /ransistorB J R;A/ (d) J nsulated 5ate ;ield A##ect transistor

(e) J Detal o8ide semiconductor ;ield e##ect /ransistor(#) J Runction ;ield e##ect transistor(g) J Detal o8ide silicon #ield e##ect transistor(h) J Runction #ield e##ect transistoriFed transist

(i) d @c ?e B# (ii) $ @? ?g B# (iii) a @c ?e Bh(iv) a @c ?e B# 

!. @EA-B" BBA =

(i) >accume diode (ii) Iener diode(D!6)  (iii) "one

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9. vaccum diode can $e used as a

(i) Eecti#ier (ii) m,li#ier(iii) Dodulator (iv) scillator

1%. /he cause o# the ,otential $arier in '" Runction diode is

(i) Be,letion o# the ,ositive charges near the Hunction(ii) ?oncentration o# charges near the Hunction(iii) Be,letion o# negative charges near the Hunction(iv) ?oncentration o# (+ve) < (ve) charges near the Hunction(D2!)

11. hen semi conductor is heated

(i) "o. o# electron increase hile holes decrease(ii) "o. o# holes increase hile holes decrease(iii) "o. o# electron and holes remain same

(iv) "o. o# electron and holes increase equall (D23)

12. Biodes are used in electrical ,oer circuits ,rimaril as

(i) =itches (ii) Eecti#iers(iii) /rans#ormers (iv) Eelas

13. n an "'" transistor a,,lication the solid state device is turnedon hen the

(i) Amitter is ,ositive ith res,ect to the $ase.(ii) @ase is negative ith res,ect to the emitter.(iii) Amitter is negative ith res,ect to the $ase(iv) @ase is ,ositive ith res,ect to the emitter.

14. ;orard $iasing o# a solid state device ill cause the device to

(i) nduct (ii) ?onduct via Fener $rea don(iii) ?onduct (iv) /urn o##.

1. 'ure semiconductor shos(a) in#inite resistance at % degree($) increase in resistance ith increase in tem,erature(c) decrease in resistance ith increase in tem,erature(d) "one

16. n a transistors sm$ol the direction o# arro indicates(a) direction o# electron #lo in emitter($) direction o# maHorit charge carrier in emitter(c) direction o# minorit charge carrier in emitter(d) direction o# hole #lo in emitter

17. hen "'" transistor is used as an am,li#ier the electron #lo #rom(a) emitter to $ase ($) $ase to collector(c) collector to $ase (d) $ase to emitter

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1!. /ransistor used as(a) voltage regulatordou$le ($) recti#ier(c) am,li#ier (d) all are correct

19. Iener diode(a) has high #orard voltage rating

($) &as negative resistance(c) has shar, $readon o# lo reverse voltage(d) used as am,li#ier

21. n tetrode the screen grid is

(a) las at ,ositive ,otential and the voltage is less thanthe ,late voltage

22. n '"' transistor holes di##use #rom ' region " regiont..

(a) higher level o# energ($) thrillision(c) higher concentration o# holes in ' region(d) none

23. n a '" Hunction diode hole move #rom ' region to "region $ecause o# (a) di##usion(D2!)($) ,ressure di##erence(c) higher concentration o# holes in 'region(d) electrons in "region attracts holes #rom 'region

24. n a '"' transistor a,,lication a solid state device is turned on hen the(a) $ase is negative ith the emitter($) $ase is ,ositive ith the emitter(c) emitter is negative ith the(d) an one o# a$ove

26. # to end terminals o# '" Hunction is connected through a connectingire(a) a stead current #los #rom ' t,e to "t,e material($) no stead current #los #rom ire

(c) stead current #los #rom n t,e material to , t,e materialthrough ire(d) an one o# the a$ove

E!E"#76$"S&'()

1. +he acuum tube hasa) &irect! heated anode

 b) "ndirect! heated cathode (3-71)c) &irect! heated cathoded) "ndirect! heated anode

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%. +he emitter resistor

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11. hen the conduction-band orbit of one atom ma intersect theho!e orbit of another atom* merging of a free e!ectron and a ho!e taes '!ace. +his merging of e!ectron and ho!e is no$n as

(a) 8urrent f!o$ (b) :inorit current f!o$(c) 8ombination (d) ase is 'ositie $ith res'ect to emitter  b) >ase is negatie $ith res'ect to emitter c) ;mitter is negatie $ith res'ect to based) None

%0. +he unit of magnetic f!u isa) $b@m%  b) :i!i =enrc) $b d) ,arads

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DIGITAL

1. ?onvert 37 decimal into $inar(a) 1%%1%1 ($) 111111(c) 1%1%1% (d) 11%11%

2. /he logic sm$ol indicates(a) Egate ($) "Bgate(c) "/gate (d) KEgate

3. ?onvert 11.7 into $inar(a) 1%11.11 ($) 11%1.11(c) 1%11.1% (d) 1111.%1

4. ;igure indicate(a) KE ($) K"E (?) ?D=E (B) K""B gate

. ?hoose correct no used in he8adecimal(a) 2 ($) ! (c) 1% (d) 16

6. hich statement is correct(a) ut ,ut is energiFed hen all the in,uts energiFed in "B gate($) ut,ut is energiFed hen more than one in,ut energiFed in E gate(c) @oth (a) < ($)(d) "one

7. ?onvert 27 in $inar no(a) 11111 ($) 1%111 (c) 11%11 (d) 111%1

!. hich $oolean*s alge$ra is not true(a) +@0@+ ($) .%0%(c) .*0% (d) .10%

9. hich is used as universal $uilding $loc (gate)(a) "B ($) ""B (c) E (d) KE

1%. ut,ut is Fero hen one in,ut is 1 or $oth in,uts are 1 the gate is(a) "B gate ($) ""B gate(c) "E gate (d) E gate

11. hich is lo energ logic circuit(a) // ($) ;? (c) @oth a < $ (d) "one

12. /he truth ta$le is #or(a) Egate ($) KE gate(c) "B gate (d) @oth a < $

13. (11%)2 is the $inar o# decimal(a) 3 ($) (c) 6 (d) 7

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14. ;or given #igure hich is correct .(a) % % 1 ($) 1 % 1 (c) 1 1 % (d) 1 % %

1. (%.62)1%0( )2(a) %.11% ($) %.1%1 (c) %.%11 (d) %.1%%

16. (1%1%1%1)2 0 ( )1%

(a) 11% ($) ! (c) 7 (d) 9

17. hich o# the #olloing are universal gates(a) ""B < "B ($) "E < E(c) ""B < "E (d) ""A

1!. ?onvert the 11.7 in to @inar.

(a) 1%11.1% ($) 11%1.11

(c) 1%11.11

19. hich is universal gate :

(a) "B or E ($) ""B or "E(c) ""B or E

2%. 296 is equal to #olloing $inar

(i) 11%%1%1%%% (ii) 1%1%1%1%%%(iii) 1%%1%1%%% (iv) 1%%%1%1%%

21. hich statement concerning the de,icted logic gate is true

(i) n in,ut $eing 1 ill ,roduce a % out,ut(ii) n in,ut $eing 1 ill ,roduce a 1 out,ut(iii) ll in,uts must $e 1 to ,roduce 1 out,ut(iv) ll in,uts must $e % to ,roduce 1 out,ut

22. @inar equivalent o# decimal 4 is

(i) 1%1 (ii) 111 (iii) 1%% (iv) "one o# the a$ove

23. /he $inar num$er 111%1 indicates the #olloing decimal num$ers

(i) 2! (ii) 29(iii) 3% (iv) 27

24. hich gate has ,arallel gate

(i) "B gate (ii) E gate (iii) "E gate

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8$5$4! E!E"#76$"S&'()

1. :inimising the e'ressionQJA > 8 A > 8 & A > 8 & ; A > A > 8 & ; A the out'ut isa) QJA  b) QJ1 c) QJA A> d) QJA>

%. QJ W (4* 14* %3* %9* 37* /7* 44* 61) X (7* 13* %1* 31* 39* /4* 43* 63)a) QJ;, b) QJ A> c) QJ8& ;, d) QJ>&

3. "n ecess K3 codes* >8& 1001 $i!! be $ritten asa) 9 b) 1011 c) 1100 d) 1001

/. "f actie !o$ out'ut is required for checing odd 'arit $e $i!! usea) AN& gateb) O< gate c) XO< gate d) XNO< gate

4. hich series of "8Es is used for mi!itar 'ur'ose?a) 7/00 series b) 7/=00 seriesc) 4/00 series d) 7/ # 00 series

6. "f a demu!ti'!eer is conerted into decoder* to get out'ut high on requiredout'ut !ines* $e $i!! tie date !ine toa) O b) roundc) ;ither a) or b) d) 88

7. hich of the fo!!o$ing re!ation is correct?a) oJAddY1(1@8:

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d) +J c!oc 'eriod

1%. LB ,!i' f!o' is diiding the in'ut frequenc b %* then its condition isa) LJ0* BJ0 b) LJ0* BJ1c) LJ1* BJ0 d) LJ1* BJ1

13. "n decima! to >8& decoder a) 1 in'ut* 10 out'ut  b) 10 in'ut* / out'utc) / in'ut* 10 out'ut d) 10 in'ut* 1 out'ut

1/. "f C> 'in is high in a Adder-subtractor circuit* then circuit is[a) Adding +$o btes b) ubtracting in'ut bte from out'utc) ubtracting out'ut bte from in'utd) Adding %Es com'!ement bte to the other bte

14. +he out'ut of NO+ gate is a!$asa) =igh b) #o$c) ame as in'ut d) 8om'!ementar of in'ut

16. +$o s$itches are connected TTTTTTTTTTT to obtain AN& gate functiona) "n series b) "n 'ara!!e!c) ;ither 'ara!!e! or series d) None of aboe

17. hich gate is no$n as uniersa! gate

a) O< gate  b) NO< gatec) AN& gate d) XO< gate

12. +he fastest !ogic gate isa) ++# b) ;8#c) &+#d) oo!ean e'ression Q of t$o in'uts ;NO< gate isa) Q J A . > A > b) Q J A . > A >c) Q J A . > A >d) Q J A . > AE >E

%0. +o remoe ha!f cc!e of A8 in'ut o!tage* $e can em'!oa) 8!am'er circuit b) 8!i''er circuitc) ener dioded) #;&

%1. One nibb!e is equa! toa) 2 bits b) / btes c) 2 btes d) / bits

%%. >inar equia!ent of (%9)10 is

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a) 11101 b) 10101 c) 10011 d) 11111

%3. &ecima! equia!ent of (10111011101)% isa) 1400 b) 1/01 c) 1401 d) 1600

%/. >inar equia!ent of (91.74)10 is

a) 010110.11 b) 1110011.11c) 1011011.11 d) 1011010.1

%4. >inar addition of (1101111111)%a) 100101 (b) 110101c) 010101 (d) 101101

%6. +he >oo!ean e'ression for out'ut A> Q

  8a) QJ(A.>).8 b) QJA.>.8c) QJ(A.>).8d) QJA.(>.8)

%7. =o$ man bits are there in 1B>?

a) 1000 bits b) 10%/ bits

c) %0/2 bitsd) 102 bits

%2. +he out'ut is high on! $hen both in'ut are different. +he deice is

a) AN& gate (b) NAN& gatec) ;XO< gate (d) ;XNO< gate

%9. A ,;+ is a deice* $hich is

a) 8urrent drien b) o!tage drienc) o$er driend) None

30. +he condition for sustaining osci!!ations in resonant circuit is

a) X# \ X8 no feed bac 

 b) < J X# and ; feedbac c) X#JX8 and 'ositie feedbac d)

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31. +he osci!!ator* $hich does not em'!o #8 tan circuit

a) =art!a b) 8o!!'itc) 8rsta! d) 8!a''

COMPUTER 

1. hich one is in,ut device

(a) e$oard ($) mouse(c) tele,hone line (d) all are correct

2. DBAD (Dodulatordemodulator) is

(a) a ,art o# ?'L ($) a so#tare(c) a in,utout,ut ,eri,heral (d) o,erating sstem

3. ?om,uter ,rocesses at a time

(a) one instruction ($) millions o# instruction(c) to instruction (d) "one

4. lgorithm

(a) consists o# #inite no o# ste,s and out,uts are de#inite($) consists o# in#inite no o# ste,s

(c) Da not have out ,ut(d) "one

. B= is a

(a) ,rogramme ($) ,rocessing unit(c) dis o,erating sstem (d) ll

6. starting date is given on

(a) hard dis ($) ED   (c) ED   (d) ;lo,,

7. =o#tare is

(a) ,rogramme ($) language(c) ,erating sstem (d) ll

!. Dost latest device used in com,uter

(a) micro,rocessor ($) diode(c) transistor (d) chi,s

9. /he main control unit o# com,uter in ,resent is(a) >BL ($) ?'L(?) -e $oard (d) &ard dis

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1%. nalogue com,uter is(a) more correct than digital com,uter($) less accurate than digital com,uter(c) equal to digital com,uter(d) none

11. n com,uter machine level language is(a) high level language ($) lo level language(c) ver high level language (d) none

12. Becimal equivalent to $inar no 11% is(a) 2 ($) 3 (c) 6 (d) 9

13. L"K is(a) single o,erating unit($) dou$le o,erating unit (multi ,ur,ose)

(c) ?B and record o# engineering organiFation

14. /he most ,oer#ul com,uter is(a) micro com,uter ($) su,er com,uter(c) mini com,uter (d) la,to, com,uter

1. /he di##erence $eteen digital and analog com,uter(a) analog com,uter has large memor($) digital com,uter has high cost and is di##icult to ,rogram(c) analog com,uter is less accurate(d) ($) and (c) are correct

16. A8cess s,eed o# com,uter de,ends u,on(a) so#tare used($) #requenc and signal received(c) $oth so#tare and hardare used(d) onl on hardare used

17. /he devise having greatest memor(a) inchester t,e dis($) ta,e t,e recording instrument

(c) #lo,, dis(d) "one

1! hich is related to memor

(a) hard dis ($) e $oard (c) ?BED (d) Donitor

19. Ee,resentation o# 5/A= is(diagrams)

2%. modern digital com,uter use(a) ctal "o ($) &e8 (c) @inar "o. (d) "one

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21. ?om,uter ,er#orm onl the calculation(a) =im,le($) ?om,le8(c) 'ro$lem hich s,lit into no o# logic ste,s(d) "one

22. /he in,ut o# com,uter ,rimaril goes to the

(a) ED ($) ED (c) ;lo,, disc (d) &ard disc

24. Bigital sstem o# com,uter is oring on(a) decimal ($) $inar(c) he8agonal (d) octagonal

2. /he ,rocess ca,acit o# a com,uter is determined $(a) D&I ($) -&I(c) ED (d) #requenc

26 ?om,uter consist :

(a) L ?L ?'L ($) ut ,ut device ?'L n,ut device

27. ?om,uter Demor consists o# :

(a) ED ?D B?D ($) ED ED 'ED

2!. 1 $te is equal to ho man $its

(i) ! $its (ii) 16 $its(iii) 24 $its (iv) 32 $its

3%. =canners are

(i) 'rimar storage device (ii) =econdar storage device(iii) n,ut device  (iv) ut,ut device

32. Dain #unctions o# o,erating sstem is

(i) 'rocess management (ii) Demor management

(iii) =ecurit (iv) ll o# the a$ove

3. Dodern com,uters or ith a s,eed in

(i) Dilli seconds (ii) Dicro seconds(iii) "ono seconds  (iv) Dega seconds

36. AB' stands #or

(i) Alectrical Bata ,rocessing (ii) Alectronic data ,rocessing(iii) Antr data ,rocessing (iv) Alectronic discrete ,rogramme

37. n,ut unit o# a com,uter communicate $eteen

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(i) ,erator and com,uter (ii) Demor ith ,rinter(iii) ?'L ith monitor (iv) ut ,ut and com,uter

39. ;i#th generation uses hich technolog

(i) >= (ii) L= (iii) = (iv) "one o# the a$ove

4%. aser ,rinters have resolution o# 

(i) 6%% to 12%% d,i (ii) !%% to 16%% d,i(iii) 7%% to 12%% d,i (iv) "one o# the a$ove

41. aser ,rinters are :

(i) im,act ,rinter (ii) ,age ,rinter(iii) ine ,rinter (iv) Am$ossed ,rinter 

42. =' stands #or :

(i) anguage ,rocessing (ii) ist ,rocessing(iii) ingustics ,rocessing  (iv) (i) and (ii)

43. Dicro,rocessor unit should have at least

(i) ?'L (ii) L (iii) Demor (iv) Donitor

44. lgorithm is

(i) 'rogram (ii) 'rogram o# #lo chart(iii) ?alculations (iv) ll

46. hich o# the #olloing $est descri$es a com,uter $ased in#ormationsstem

(i) n,utting Bata(ii) 'rocessing data(iii) sstem in hich a com,uter is used to turn data into in#ormation

(iv) 'er#orming com,le8 mathematical calculation

1. +he unit $here ca!cu!ations are 'rocessed is ca!!eda) 8entra! 'rocessing unit (8C) b) 8ontro! unitc) Arithmetic and !ogic unit (A#C) d) 8om'uting unit

%. equence of ste's for com'uting a 'rogram is no$n asa) ,!o$ chart b) equence 'rocess

c) A!gorithm d) None of these

3. >asic function of a com'uter isa) Addition   b) :u!ti'!ication

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c) &iision d) A!! are correct

/. ;& stands for a) ;!ectrica! data 'rocessing b) ;!ectronic data 'rocessingc) ;ntr data 'rocessing

d) ;!ectronic discrete 'rogramme4. A com'uter basica!!

a) rocesses data b) tores data as 'er gien instructionsc) erform mathematica! ca!cu!ationsd) A!! are correct

6. 8om'uter stores instructions ina) ;ng!ish !anguage b) &ecima! number sstemc) Octa! number sstem d) >inar

7. Assemb!er isa) An indiidua! $ho assemb!es com'uter b) #anguagec) rogramme d) None of these

2. "n'ut unit of a com'uter communicates bet$eena) O'erator com'uter   b) :emor $ith 'rinter c) 8C $ith monitor d) Out'ut com'uter  

9. rimar memor of a com'uter area)

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16. "n com'uter termino!og* :"8< meansa. :agnetic "n 8haracter

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34. ,rom the 'oint of ie$ of integration* a micro'rocessor chi' em'!osa) .." (ma!! ca!e "ntegration) b) :.." (:edium ca!e "ntegration)c) #.." (#arge ca!e "ntegration)d) .." (rand ca!e "ntegration)

36. ,!o'' dis is a(a) ,!eib!e storage(b) ermanent storage(c)

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(d) 0 $ith no carr

/4. +he access time for semi conductor memories is of the order of a) A fe$ mi!!iseconds b) A fe$ microsecondsc) A fe$ nanoseconds

d) A fe$ seconds/6. emiconductor memories are faster than magnetic memories

+rue,a!se 

/7. +he memor unit that communicates direct! $ith the 8C is ca!!eda) :ain memor b) Aui!iar memorc) 8ache memord) ;

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 b) :icro'rocessor is usedc) +ransistors are usedd) None of the aboe

44. +he unit of D:emorE isa) >tes

 b) :ega bitec) :i!!d) >!es

47. "n com'uter machine !ee! !anguage isa) A =igh #ee! #anguage b) #o$ #ee! #anguagec) er =igh #ee! #anguaged) None

42. A modern com'uter usesa) &ecima! !anguage b) >inar !anguagec) =eadecima! !anguaged) A!! of the aboe

49. hen data has to be read* the contro! structure $i!! bea) "n sequence b) "n sequence and re'etition

c)

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d) A!! of the aboe are correct

66. ,O

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DRAWING

1. /he missing edge or ,lanes are shon $(a) dotted line ($) dashed line(c) hidden line (d) all

2. /he line used #or re#erence o# ,arts is(a) re#erence line ($) hidden line(c) ,hantom line (13) (d) $lac line

3. n engineering draing the line indicate the alternate ,osition o# ,arts orrelative ,osition o# a missing ,art(a) &idden line ($) 'hantom line (13)

4. >ertical location o# the structure in aircra#t is indicated $

(a) $utt line ($) ater line (17) (c) station line (d) all

. hat t,e o# line is normall used in a mechanical draing or $lue ,rintto re,resent an edge or o$Hect not visi$le to the vieer:

(i) Dedium eight continuous line (ii) Dedium curved line(iii) lternate short and long light dashes (iv) Dedium eight dashed line (13)

6. ines made u, o# alternate long and short dashes in the draing are

called

(i) Bimensional line (ii) ?entre lines(13)(iii) Batam lines (iv) &idden lines

7. n the draing lines indicated the alternate ,osition o# ,arts o# the o$Hectand are com,osed o# one long and to short evenl s,aced dashes is non as

(i) @rea lines (ii) =ectioning lines(iii) 'hantom lines(13)  (iv) =titch lines

!. Braing line consisting o# a series o# evenl s,aced dashes is called

(i) =titch lines(4) (ii) dutum lines(iii) centre lines (iv) dimensional lines

9. n the draing lines consists o# short dashes evenl s,aced and#requentl re#erred as dash lines are non

(i) 'hantom lines (ii) @rea lines

(iii) =ectioning lines (iv) &idden lines(13) 

1%. 'hantom lines indicate:

(i) lternate ,osition o# the ,arts o# the o$Hect(13)

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(ii) Eelative ,osition o# the ,arts o# the o$Hect(iii) @oth (i) and (ii)(iv) A8,osed sur#aces o# an o$Hect

11. =hort $rea lines are made:

(i) $ solid ruled lines ith IigIag

(ii) $ the solid thic #ree hand line(13) (iii) evenl s,aces sort dashes(iv) @oth (i) and (iii)

13. line used to sho an edge is not visi$le is a

(i) 'hantom line. (ii) &idden line(13).(iii) @rea line. (iv) @roen line.

14. /he setch giving the descri,tion o# o$Hect made u, o# to or more ,arts

(a) detail draing ($) assem$l draing (3)(c) installing draing (d) none

1. n draing hich shos the ,osition o# ,art in relation to other is

(a) detail draing ($) assem$l draing(c) installation draing(3) (d) sectioning draing

16. hat t,e o# diagram is used to e8,lain a ,rinci,le o# o,eration ratherthan sho the ,arts as the actuall a,,ear

(i) schematic diagram( (ii) Dedium curved line(iii) s in (i) and it ill sho ho the #unction(iv) @loc diagram

17. ne ,ur,ose #or schematic diagrams is to sho the

(i) ;unctional location o# com,onents ithin a sstem(!)(ii) 'hsical location o# com,onents ithin a sstem(iii) ocation and la out o# ,i,e line

(iv) =iFe and sha,e o# com,onents ithin a sstem

1!. =chematic diagrams are used mainl #or

(a) ac maintenance and re,air ($) trou$le shooting(!)(c) installation o# ,arts (d) all o# the a$ove

19. hdraulic sstem schematic draing t,icall indicates the

(i) =,eci#ic location o# the individual com,onents ithin the ac(ii) Birection o# #luid #lo through the sstem(!)

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(iii) mount o# ,ressure in the ,ressure and return lines and in sstemcom,onents(iv) "one o# the a$ove

2%. hat should $e the #irst ste, o# the ,rocedure in setching an ac ingsin re,air

(a) dra heav guide ness ($) ma out the re,airs(c) @loc in the vies (49) (d) dra e8tension lines

21. ,art at an angle to the ,lane is truell designated $

(i) u8iliar vie (1%) (ii) ;ront vie (iii) /o, vie

22. n #irst angle ,roHection

(i) 'lan is a$ove the #ront vie

(ii) 'lan is $elo the #ront vie (@14)(iii) 'lan is one o# the side vie(iv) "one o# the a$ove

23. rthogra,hic ,roHection shos

(i) the o$Hects as the actuall are in sha,e hen vieed #rom verticaland &oriFontal ,lane(ii) the o$Hects as the actuall are in siFe hen vieed #rom verticaland &oriFontal ,lane (iii) @oth (i) and (ii)(iv) s in (iii) unless #or convenience the draing is scaled u, or don(@14)

24. hich statement is true regarding an orthogra,hic ,roHectionN

(i) t ill have onl 3rd angle ,roHection(ii) /here are alas a least to vie(iii) t could have as man as eight vie.(iv) nevie tovie and threevie draings are the most common(1%)

2. revolved section shos :

(i) /he sha,e o# the cross section o# a ,art (42)(ii) ?urvature o# the round sha,ed ,arts(iii) ?ross section such as s,oe o# a heel (42)(iv) "one

26. imits o# ,artial vie or sections hen the line is not on a8is are shon inthe draing $

(i) ?ontinuous (thin) lines(ii) ?ontinuous short dashes (thin) lines(iii) ?ontinuous irregular (thin) lines(iv) ?hain (thin) lines

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27. hich o# the #olloing statement is not correct(i) n ,ramid sha,es all the #aces are rectangular(ii) n ,rismatic sha,es all the #aces are rectangular(iii) n ,ramid sha,es all the edges meet at a ,oint(iv) n ,rismatic sha,es all the edges are ,arallel to each other

2!. /he measurements shoing the ideal or ,er#ect siFes o# ,arts on draingsare called

(i) lloances (ii) Bimensions(14)(iii) 1 < 2 are correct (iv) /olerance

29. hich material sm$ol is #requentl used in draings to re,resent allmetals

(i) =teel (ii) ?ast iron(13)

(iii) ood (iv) luminium

3%. hen a right circular cone is cut $ a ,lane ,er,endicular to the a8is it iso$tained

(i) ?ircle (ii) Alli,se(iii) &,er$ola (iv) @oth (i) < (ii)

1. 8hoose the correct sets of ang!es of set square of one 'iece

a) /40

300

 b) 300

900

c) /40 600 d) 600 600

%. hantom !ine is used for indicating the TT a!ternate T 'osition of 'arta) Actua!  b) =iddenc)

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c) As in a