203t2014

1-

i! pd!.lt.t in ord.r io I (A) i!cF@ th€ rcltq. .vlilabl€ (B) rcduo @t oawilin! (O) i!.!we th6 cusdt .va abb

C€IE de ontuct€d

(D) eds

,.

_t.

tLs

t6.

dquied to ftiily ctB4!

ttla rft.r @

Iae6Dbi4dE.itt !6 ol t{o.qutl s.bto6 dncct (A) 0!6 hru th. Ed!t@ of @ c!i!0or (B) i{i6 tn6 d't to€of m di.toi Gl nruf@. tLF.iit uol@utirtq (D) re hutl !!. E!i!t!@ of @ Eilod SuDqlciliE thdeo @

b. eppraDl.

il in

p.ftlLl i! eq!,l

io i

dry b crluB n.vtlt

(D) liDs biht rd '15..F€d of d ildEti@ etot: . (A) dd.e. too Duh ti|h

t!. id!@ of lo.d (B) ialts. titt rb. i!@!F of l@d {O [email protected] dishtb ith tr. ii|6B- ollo.d (D) FDsi$ @Et.Dt

Whict DC 6oioE

'i$

thd

it:ed

!u .ppt!triDt lv @!.t ri

of

loil

.FGd?

(A) s.ie. @tor (B) thui tloior (C) C\tott.tirtlY @Pouod (D) AU ofth.6td. 6.

tl6 cmdiiion of !.Fn.@, (A) push esirtiv€ .iltuit

Und€!

(C)

6010!

RLC .

.ari..

cisit hehav4 u a : (B) PNIY indutiv6

dircuit

capacitive circuit lP.T.OJ

'

(A) n)uprjuc.btrr

(B) tbs p!ju!.ti@

(c) tm Dn jurctioB E.

Tb. ripde

aactor of a

(D) . ore

lowq .uppv n ,

(B) rti &oil€ nDrs (D) itsilter€ftciebcy

(q pudtyofpow output

TLe symhJonoG .p€erl lor ! 3 phrF 6,pole mdutio! Eotor i! l2oo rpd. If rho nqeb.r of pol6 ld nor rsducd td ,t wii! th. t q@ncy red.ining 6nst$t, the rctd sped {itl a .lip

(B)

(A) 1690.pn

1?60r!b (D) r?rolpB

(c) rsoo.i,n 10.

jurcttoD

6.,!N of'

fO, * **o ***"

0.

DD

A ilewice

sh@ chetct tutr6 aE Ery

cl6

to

th.t

(A) a@diode

(A)

O.m?

(o

7oo

u

i.le.l @ltq€

s)|e i.:

(B) cDlAc (D) . FEr

(c) amdio& rr. WLr ffidtins

of

7,O0 !A to

Dic!!Gp@., iL.

u

/,A

t

i.

:

@) O.7 tA (Dt |t,A

/rA

rl|, llE'.I€!th'd led h c.bL to : (A) pdiL .lr.oatn 10 !h. qbl6 (B) pNid. prcp.. i$rLtbo (C) pe@Dt the roirtuE ftoli .d€!i!a (D) avoid chaiceE of rui o! lrlrtrd. 18. W!6n t!€ ildued

sp€eil voltege?

.t

which a

6A@b!

iF

bord

(r\) inc@3 bltase acr@

"L.-dlg !t r Erc

ot a

.

WU. n

1,000v (q 3L25V 2034t0l{

..Uo

th&u8h

.

nssnetic Eel.l is itr!€a..d, th.

(B) d.@as. (D) e.clE. a@

(c) ftmiMdat.nt la. 'lle iDd@d

iho

@il wiih ,60

tl|ru rb.t

ib lcateil

ir

a

DrcEti

fEld

ihrt n

.

(A)

@) 9000v (D) 3,r26V

a

A

16,

Slip oflhc jnduction nBchine s 6.02 and thc s!{n,r iupply frequencr is lle hoq@ncy ol tl'e rot r indu@d enfl (A) loltz iB) t0 Hz

((r) I Hz

16.

The €ddy

1D)

curFni lcs tn a.

a c el€ctric motor ia t00

(q r00$an€ 1?. TIc arnalure of a dc nachire

(n)

is

(B) (D)

Eddy cuneni

A single phase Fysteresis

can ruD ai syncbmnous 3p€cd only

(lt)

can run at sub sydchJonout rpe€d

(C)

can run

{airs

HFr€resis loss Frictiotr and windase lossea

otly

synchonous and Gupcr synchbnous speeil

(l)) dn dt stnchsnous lr.

4o0

lN d r 0o Ez wiu bc :

notoi:

(A)

,t

Ez lt€ 5g*atts 50

labinaed b rodu@ i

los (C) Copper los*s

18,

2500 Hz

waiis er

(B) (D)

(A) 25{aG

50llz what{illbo

5nd 3ub

The kmD€rarurc of.€sisetue turnaes

.ynchrems

d.

bc

3peed

ontreUcd bv chnEing the

(B) (D)

(A) appliedrcltac€ (C) cn uitonisuaiion

:

number of tr€ating el€nc're

all or lhe aboY€

20, lor a linc volilg€ v dnd reelbrion of, lrdnsni$iot li.e a : (tl W6r ( ) n{Y

(c)

21. Thc rotot

2n<

t

frequency for

(D) 2vxd1

a:

pha.e

IOOO

RIM 6 pole induciion not r with

r

'lip

of004

(B) !

(c) 22,

(D)

6

Wlctr iwo tlmfomers are operating in padllcl. lhov (^) Dhrortional io th€ir idP.dans6 (B) inver$ly proDoftional to thei. idped,n@3

(()


2

$iI sh.e tte

load as uddor?

50%

15v,

20an0t4 lP.f,o,l

23,

A 9-Dha6e,400 volrs,50gz 100 XW,4 Dolc sqnimlcase induction mot r wiih or2% *iU bsv. a rotDr speed ofl

t,l.

:\ il

plase,

-

vill

of 2%

,100

havc

,

rclts, 50 Hz, 100 KW. rcto. sped of:

4

pllc 6qui!rc1

(l) l500.pb (C) r$olTn

(I})

csge indnction 1,170

hotor sith

r mlsd

n

(D) l570rpn

the t{o ends or a iEtrsDissior line are l3z KV and its eactane Tllc Crpacity of the line is : (B) 2r?.3MW

20,

r.tod tlip

IIn

25. Itc rhdae ,t

(c)

ehp

i.

40

ohn.

15l.sMw

A iynchr.noN notor h operaiins on noload ai unity Dower facior. If the ficld curcni ig in.nracd. pos- i,do-q' I be@m€ (A) lagcins snd curre.r sill decrelee

(IJ) lagging and a;nl s,[ ,hch.* (C) loadins tud [email protected] *ill dec&aec (D) tedinc anil cwre $ mcDe 27. A d.c. 6hu!t motor runs at no lodd br'€.d of ll,l0 rp.n. At f l load, dbaiuro re6.1'on *e.lcru ihe main flux by 5% shctu8s th€ arnaturc ciftuii voltac€ d&p. by 10',6. Tne mobr full load dpeed h r.D-n. b :

(A) 1200

(c) 1000 28,

1203

(D)

1030

'fhe mo6t euitabl€ seNonotor for los po*cr applicaiionB is:

(A)

(c) ,9.

(B)

?\ 40{}

a dc sorics

nolor

rn ,c two'phase induciion not

tw, 3-phas.,

,110

v,

(A) 0.06

(c) 0.0.1 30. Ir { sali.nt r}ole syd.bronons

203t2074

r

noto. (D) rn ac s.i€s Botor

i.du.don mot ! h.s ol'h^ mrchinc w'llbc

50 Hz

nnchrn€ ha3 6 pol5. TbF 6Lp

(A) rs>i/ (C) rq< ri

(B)

(B) (D)

a dc shunt

a spe€d of 950

0 r0 0.05

nachinc (ucu0l rymbola are ued) :

(B) & ., (D).4=0

r.p.n. o! tul1 l@d. The

31,

l.nrnatiot. in a ha.sfod€. (-4) eddycuteniloss

((i) 32.

are

CRGO

An

hdh

(.^) and

rsd

to

{n)

(r))

(B)

Air'orc |Iansfomef, !s conpared

to

(B) (D)

lc55 nagnetic cor€

33. TrtnsforEer d.rinun

eficiencv, for

t ostaDl

3.r. A &

th. ratod

4 *a 4 -"*"t

(A)

d{roasine

& odv

(c)

dkf.adns

4

cudn! l@6

dt

tos

:

uni9 PNe' f'cbr

:

aid incFasing

(B) inoeasi'g E (D) increasins 4

&

odv and d€oeaiin8

A dc Prier notor is running at El€d ipecd tithout 'nv tdilitioMl 'esi3dne additional resist.n@ it p|led s sie. !h€ sn4'd olihe motor:

&

ir stics lf an

(B) decFases (D) Mnbt$ mmd !h"!td

?Iuseing of d. noioB is norD,llv €recur'il bv (A) rcwrsin8 the 6erd Polarily

(C) (D)

st'eed

:

rcveEids tbe ardatule PoladtY rcv€rsins both arbaiuE ad 6old polaniv connecling a Pdistance across ih€ arnature

a! dnaturc 6il of a dc dachine b : (A) the sMc as thll ofthe curElr lor bolh tl'e sEnerator and the Dolor (B) opposiic io that of tlE curretr! for dE s€d€ratouad the mob' (C) thc aMe !s tnat otcurcnt lo' lhc generaior dd oppGite to thdr of$c cur€nt for ttrc notor Itr' non.nrth€*

The [email protected] of indued eDt in

33, Thewalc forn of ihe dmatN nnlin

(A) square

(c) tdanenlsr

^

hare nosn't'c coa lcss ohnic rG'

spesd sith rabd exciiation Th€ ndtor has rso d aoos6 the arnilue and the 6eld F3p{tivelv spccds above

spe6d can be acnieved bY

(ll)

3?.

has :

is runline.ai ra!€d

(A) in@a*s (C) rcnains unch'ns€d 86.

lodd

(I))

Plldgging

6eri€s noior

*Jt*"

36.

arc

ohnic loss

(B) @Pfl@dins

(A) O.8pl

lC)

\Yst€Hb los

isn 6rc tmo8rorder'

ro6s (C) no naenelic e€ lo$ (A)

ninrm&:

a dc dBchlne

8:

(D) (D)

Ectansular drnusoidtl 20gt2o1.4

'"to'

39,

Md6e

ofa p.oto. is hN

grcrtd rhan adss ofan etectron:

nen_\, tiDea

(A) 184000

(B) (D)

() 1840 .10.

Cond

lctd nce of any conduclor is exprcsdcd

1S.1OO

rs.t

r$:

(A)

(B) (D)

'opererwatt (O voltwati

Dho

Narr,npere"

,rr. Tlo esi6ta.c* ar

and rq gire @nt,inqd Esi,tanccs.!5 o dd ro *hen.lBr !re onn*(€d rD 6eries ,nd pdallel reADocrively. $Iar {outd be the valc. of tIN* bsislades? (A) 3r) and6o G) 6r) and 9() (C) 3.} aldgo (I)) t.5oandio

42.

Kirchhofis &cond

lar

( ) charse

is based on law otconicNation of:

(B) erersr

(c) nohenrun 43. ADp.ro s@!.1

is d€ u.ir

&r nE$ of:

(A @.durd@ (C) c.e.€y {4.

An

€lehic curent ol6 A

i6

sane

de

(b,

power

(D)

chaEe

:

.!6, Ine colou

band sequende of a Esisror i6 yolow, violet, o.ange dnrl Col{t Thc mnse in which its vdiuo nusi lie so as r! srtisfy rhc t ldrance sDociEed is bei$s€n l

(A)

49.35I1-w (O 44.65 KW and ,r9 36 I{W a6.

Th€

14,66

SNrddry

Kwsnd

litr€ volbe€ is

haxinu

for Nhich

(A) Detb DeLa (C) Deltr -sbr ,t7.

Tho dawling

()

(0) 20xt20t4

i!

High

Loads

c,1.65ItW and 49 35 Kw

(tJ)

.rs

K{ ed

,19.34

l(w

.f the ldUcins onnerio,s

:

(B) 56 Srar {D) std-Delta

an Inducrion Molor is couBsd by

lnprcper Desip

(B)

otMachine

:

(D) Low,otbse

(l))

qahonics

supply

Devctopod iD lhc nrolor

,8.

Sp*d v,nationr ofo dquineicrse i.dudion froior are *sentrrlb snniler

(A)

(C) 10.

Dc shutrt motor Srachomus hotor

tB)

Dcsedesoobr

(D)

Differential u,mpcu.d

(B) (D)

(c) 350 A 23l230o V

taNforder

(A)

300_2

{q

2a?.5

6r, Tn.po!.rBlen

62.

A

W

G)

w

(D)

byr s.phase lord

eai@dlctor i. lom€d

'r

s1v.n by

O

25 poNe. factar l,ssins. The ddd

192_5 W

2r2.6W

by

Electbvarent None of rhe

,bdo

A&€. tuing an SCR, ib€ Baiing puls€ is remov€d The currcnt in the SCR will : (A) R.nain6 tlE 6ane (D) IeDediatsly lsll to bro

The

m.i.iry erri€h

(D) Ris a littlo in a

*nionducto.

,a

pod@ed by

(c) Dopina

66.

210

l!,.FvLtL@sd

(A) BourdELctos

!6,

fln\ in

tlc eipresson

(Ct Rieup

ta.

:

90O

iakes no l@d currena of 5 A at

(B) (D) 51,

rlNe of

Tne m-load ratio d ! 50 gz single p!a* .tran6aomer is 6000/250 \, .The m.ximnn dre coE is 0.06 Wb, Whal ir the nunberdlprintrry tun6?

(A) 450 60,

t

The

l€ddcr cu..cnt in d crystal diod€ is due to (A) Juction Caplciiance (C) Minonty and M4onty Ca.rie!6

(B)

:

E]ectmn

(D) No&

(B) (D)

and thcn foll to Dro

- Ilolc pang

ol iLe lbove

Msjority CarioB Minority Carri€rs

res;hne i. cflnecreil in tne Ere! ciEuir to : (A) proaEdy rcEr* bis the an€r (D ptutdtthozner. (c) proecrly loruari bias tle eDer (D) cureniamplifi€r

A sries

20v20\1 IP.r.o.l

5?.

Shuy lo$er rn aninductian

not

.g€n€raUy urc: the squsre oflhe llutorcurrcnr

(A)

pbpo.tiond t 1B) pbportional,o the squ.re ol thc fol.o cuuen! (C) proporlional to the otor curroni (l)) inv€rs.ly Dtuporuo.al io ihc squnrc of mt f cnrrenr

6a, !

hat

de'rrEin6thc 'hprmal l@drngun IIF moror,

(-'\) Du.y/r,ad crcl€ (C) -{ee ollhe notor

59.

(B)

(c)

61,

(B) (Dl

No orpoles Nore olrhe above

The spNd ofan AC nolo.depends on l

( ) F.equency 60.

(D)

Temp€raru€ ol the qinding Ambiont Mdi.iona

Reduction

BoiI (A) and

i!

(B)

lupplyvoltage by 10% qill chdnse lhe torque ofure tuotor by:

(A) 33%

(B)

19%

(O) 9,5Y!

(D)

no chanee

Output p@er equiren€lts of @mtant lorqus loado rrJy wiih :

(,\) .ptud (c) cllmnr 52. A.ry6lal

(B) (D)

diode is a

63. Apnjlnciiods.tu

(A) (C)

as

a:

unidiEc.io.al swirch conholed sFibn

(B) bidnsdoml swtch (D) none oft[e ahde

64.

The rctor pd.r ouaput of e 3 p}iase inducrior The rctor .opper loss will be :

65.

Tho budbdr

noio. is l5 KW dd oft6pondi4 .lip

pmt c.ion nmns p.oteciion of:

(A) Bwblr

(B) lsolatins svit lc. (r)) Ar above

(c) oinulrbr€lrteB 203120t4

v;l'asp poad factor

r0

is 4%.

06.

A

cimit

brcaker tu abre b oDe! u!d6t :

(B) loadonditions @) llGot.blr

(A) m loldoditioft (C) f,uli@d,tFG

6t.

R..ctoE @

'(A)

d,et€d _

wiib rlp !y8r.E.

eri€. (C) b *i.&par.rbl

6&

(B) inrdmnel (D) tum oi6b-E

in

'I1r. diltEbutior tr.nsforDs a

rti.d

r

:

(B) lffAX

(c)

KvA

69. Volt.r! ofpliDary diltribution .y.t! n i!

(c)

230

:

(B) 33 KV (D) lrKv

v

?0. II the lDan i. hcE*4

thc 6!r :

(A) &.@

(c) mriE s.@ ?r h .

in ti Misi@of &chi. Ddc (A) 3-pl&, t-rn€tr.t3b (c) l-pla&syst@

Indi;,

?2. D!.id.l

t6 in bildyFy3t6m

e!

b€

looo (c) 1100

In

celdirlg wtich

(A)

of ihe

CC

4t6ttD

(B)

I1r0

(D)

1111

6olding 6n6!u!atiou i! nodalv {*d? ( cB (D) Atl oftlE lbd€

o{! tr@iltq ud.r

hrsb (c) eryhich

(AJ

@) 3_pha*, 'l'ti& (D) mtu of.bM

)

(q cE ?r. 1!. ilBur ibDedDe

tt:

*itt!! a.:

(A) ?8.

i. dom

i!: (BJ L*

bfltld

Dis

(D)

dlErm 20&f20r4 IP,T.OI

75.

76.

pefered fo! [email protected] i! : (A) wosd eror indocrion moto" (C) ..quiftl @se induqrion hot E

Motor

SUp

nn$

are ftuauy

rAr

(B)

na& of:

(B) braEsorsr*l

rarbo! o!

Tbe @tour code of r

Esrot

of

(D) cop!e!; ahniniuE

noEisl valu;

sitEr (C) AEd, violer, htrs. !Dd.itv.! tA)

R6d,

7& AElffr{e

'

violst Fd.nd

79.

A

nc.dr

o

D.C.

(c) 30- Pe@

vorq! dei4 poie. io

d€vic.

i€d, viot6r,

(D)

R.d, vlrlor, 'euow Fd.nd soid

eil

goid

tL eiDcal ot: (B) Et@t @ @) E.i!i.@

l1r. &;o h.ror

of

! [email protected] waE ir

r.41.t (c) rlr

:

(A)

@t (D)

z

1J

Whic! of rbe tlUof,ils i! r femnagmlic aabnd?

(A) Turslte!

(c) CoDper

.

(B)

(B) .l|t@rdeyi6 (D) @!! fB &yics

(c) urectum

32.

lo ri ia :

:

(A) dud.r.iry

8!.

Ko

(E) i. @lrrnt ,ped (D) .[ort'he sboE

*ir.|ld

rDgg trandr@! i! I olsJr!trt GA)

2.7

.

Eotor:

(A) i. *r.r8tidg

(c)

6hu!i @tor

(D) D.c aarie. o;to!

sraphiE (c) 6drer o. gori ??.

D.C

69. .t" eauator owerts

(A)

. _ 20312014

(D) Nic*€l

:

pop€liiro il.c. pow€! (C) d€cbarical pm$ inro..c pow.r a.c.

G) Alud,nun

(B)

d.c.

powerinro a... po*61

(D) ntu of,boft

81.

Tho

&eqslcy of DC .!DDh i.

:

(A) %F

(D rsr

(C) 60qr

(D)

l0oHz

(B) (Dt

I IVE

G)

r0

85. R.leiis p.ru.biliry (A) 4.

of

vacuun

i.

:

(c) I Ea. Tb

uii

ba.ic

ofGL.iric clEr6 i!

a,

:

(A) aop.Glrour (C) ouloDb 6?. s.6ibd!.rd Mt id LrE

8&

t'|E biNy

.rrt o @. p@!

of

'(A)z (o8 19.

An

(D)

16

eti* .Ltult i. : (A) R..n'bM

(c) c\rtri sut€

,0.

(A) (B)

ir ud to : slDEt€ Fw.r chr4s 6&lei.d

Gl

cbrnap

A trc. Doior

€!6rar Dlt into

imtrub..t3

.Lctricd 64rA/ dech.nic.l eels

to

d*tnd .n.rd ro

@) i!@ae 0t,

.*4y it

are D@l

sDitiE. (B)

(C) dvrrDoh.i.. 0t.

The

(D)

FE.lcntdisrEt

6@ira @il

@d eU i!: (A) led.&id eU (C) nictr€lqdniun eu

Dot

@oly

l8

,03/r0!a tP.L0l

93,

The emciency.la prinary cell i€ about:

G) (D) 94. lodatlnce

(A) 95,

35%

opp@er onlJ increasc

wlBn a magn€tbheat€d

(A) ii8!iN drsnerird (8) il 1064 @seiilo {C) ii neither IG. or rain (D) ii

gaim

nagtretbb

.rpacihns

96. I@ i! &eeacnedc: (A) above ?70'C tC) a. oI @6pedi@

,?,

r5%

For ihs

pes.

(A)

of

(B) b€ld ?70'C (D) non€ofabok

elatsly3is, we BquiE:

Bupply (C) varrns wltlsp 93, the okEse v.l@ of3id , oq

(l) erc

(c)

G)

d.c.

(D) a

@oplere clcle

-l

e0, Ar mnplEd b .hut rnd ompound rorqB b.c6o& of

(A)

203tto\4

boih d.; dDd s.c supplv

i.: (B)

+r

o)

r/2

nobrs, thc a.ie. DC

@oplrorively arn,tuc cai.tarce 't3

(A) ld€r (C) Fsv€r sri€! 100. MNiDg-ircn

DC

r.c. supply

nMr will Lse

(B) Strcnger *ne. 6elil (D) L.rg.r *naiuft

turne

imt uDsnls hav.

squaled

14

rbe brgbost