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155-2014 Question Paper

1. Options A and C are correct - both the P and N regions are lightly doped. 2. The CE configuration offers the highest input impedance. 3. The average value of the fundamental component of a half wave sinusoidal waveform with a peak voltage of 10V is 0V.

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0% found this document useful (0 votes)
87 views12 pages

155-2014 Question Paper

1. Options A and C are correct - both the P and N regions are lightly doped. 2. The CE configuration offers the highest input impedance. 3. The average value of the fundamental component of a half wave sinusoidal waveform with a peak voltage of 10V is 0V.

Uploaded by

akashgkamal
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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r55 / 2074

(A) only rhe P nSio is hravily doFd


(B) only tlE N Esron is heavilY doPd
(g hlt P and N re8ios e li8hdy ddpd
(D) Doih P N FAim N havilY doFd
'nd

2, lYhich ot th folowing tansistor cdfitlFtion ofte6 hiEh6i inPDi ihPdde ?

(A) CB (B) CE
(c) cC (D) cscad. cd{igu'arion

3, A hau w5v E tiied sinsoidal wavefoifr h.s a llak voltdge of 10 V' Its avdage valu ot
the tundamenial comPonni is :

rA' ;v rB) -v ic) tv (D) !v

4. Bdkhtutm d e.n ior @iuati6n is aPPli6bL to :


(A) situ$idal6riLtoB G) asr.ble mtltivibratoE
(c) relabtion Gollah (D) all irr'h

5. u/hich allms the lolloring mt a. adv.ntag. ot rET dd Btt ?


iB

(A) olmtits conEolld belEvidr (B) hith inPul inPedanc


(g los noise (D) hEh sain bandwidth Ploduct

6, Rc.drpled amPtfiet is use'las a I

(A) pow{ anPlitier


(c) bu(tu amPliiiq
7, It a sp*ific aPPlicaiion or d
ahPlifier dmands btt'r imunitv to noise als {hl'h of the
rollNins.spn6d sn b. chos6 ?
(A) RC dtled ahPlifid (B) DifiBnldl
'nPliris
(c) TF|lffiisbnG .mPlifi6 (D) Tlad@ductane an?iirier

8. The Pn * sluft indued by rhe eim bridgG in t wi'n brid$ oscitllror at d lftqutrv oI

{A) rso" (B) 350" (c) 0" (D) eoe

{Pr.o.l
Wltch ahong the followjng w not ilftct th dc pertumance ot t! op.adp ?
(A) conmon mod. plctid ratio (B) bandwidth
(c) slaw nte (D) inpufteshran.e
10. ComnuniotiM syrlems rhat do not u* moduLrion are called :
(^) canier .omuni.ariotu (B) ba* rEnd comicarjons
(C) teresh.ial.onnuricalions (Dl powerlinecomnuni.arions

11. Which a'Mg tl[ foll.wins Gn be tak6 as aGranr ovelope modrLrion ?


() DsaFC AM (O Dsasc AM (C) SSB (D) FM
12. Choose ih co ecl rine.r, regardinS rht measuremenr or a sjnuroidal voltaSe

(^) uqn8 cRo thc R.M \ vruF.dnbcmocurd


(B) osing cRO th. R.M.S value and 6ing nulbmerd the .v{age value can be m6$red.
(c) using cRo th averag value and using mulrimrcr rhe maximum v6lue n b

(D) ueing cRo the peak vokase aid uFins multimete! th. R.MS val@ en b hasurd.

13. A *ries RL.iruit takes 160 watts or 4*gy aI0.3 power ractor lagSrg rrem 100 V 50 Hz
supply. Th vah. ot R is:
(A) 62.5 O (B) 30O (c) 4on (D) 50o
14. Magtritude ol Ele.tric Field Intensiry in th deplcrion resion of an open circuited

(A) unifornly distribured


(B) maximum .r rhe juncrion
(c) mdinum d h F8ion mar rs'dc
(D) mnnum ar rh Fgion n6r N side

15, Drift c@nt in th. mionductor depends lpon :


(A) only the al*hi. ri.ld
(B) only th Eier concdrration
(C) both the l{r.ic ficld and .afti.r otMr-arim
(D) !'@ oI the.bov
16. A znd diode whh used in volbge stabitization cinlts is biased in :
(a) leyeM bias Egion below lhe brakdoM voliage
(B) Evee brcakdown 48d
(c) ro a..l birs reEion
(D) fotrard bias comtant onnr EDde

1sa/2014
17. The PN iun.ti.n ,n Photodiode n :
(Al foB.rd bia*d
G) roruanl hir{d in lhe ensrant r]lj1el rgior
(c) eithet lotrard q ieveree biased
(D) revese I'iaR'd

13. I{4ri.i MO6Iril amPlifid is bsl suited lor high frequency aPPlications ?
iA) cs (B) cD (c) cc (D) sdKe Iollowd

19, A pdiculat afdi.ilio. rqui6 d. lwe! rdtontion oI si.usidal riSmle


ca be used frtr dc r.{oralon
(q pelr&1d (n)

20, The npnt rsistancc oi a cI amPlifter can b in.taeerl by :

(A) indeasing ihe itPur b'as resstot


(B) in.ludlng t .oltlinS.apn.ltor al the i/l
(c) includinE in lnbyPassed resistan e in lic cmittr lad
(D) itrPasing lhc inPlt vollaS

2r. SomproFii6 of ncSatile leedback e lisFd ()rcc tht PrcPerrywhj'i i! not aPPli'al'le
!o regatile fdM.k :

(A) G.in enhanccncnt (B) ( j'in d@itivit!'


(cl Bandw th.lrension (D) Nois Fdudidn

22, Op adp inlegEtdr ..n be 6ed as


(A) HPF (B) BPF (c) r.rl (D) 8RF

sine (avc lo rquaE qav (fivdter' (ol $ft rrcgudn.v)

24 A non mve*'n8 a'nPltf'erwrth a Aa'n k/ and R, Jrr lh.,eqibbB


ued rhr Fo$'bh vrlucs of ltJnd !i
(Bl r0 a, r !r (() t0 L!r,l0lo (D) 9kll,1 kr)

oR irpu, ot d 2 ,npu, f\OR g.te h !.anrt lqtl hr loBr I and to th other rnPul'A'! siven

(A) I (B) t (c) o (D) A

lP.T,O,l
26, A logi.al *pression in 3 variabls i! ro be implmdted usin8 a muljptexr
j.qlr=/(A, A, g. Tt nuttipler* ch*n h:
(A) I I l Multiplder (B) 3: l Mrtriptqer
(C) 4lMultiplerd (D) 16 i l Muhiplex.
27. An ener8/ sigml is dwhich has j
(A) nJinib ftis)| and rinire aveage powd
(B) inlinit lowo and finie ener8y
(C) tinile power and zrc oqgy
(D) tiniie m681, dd @ arera8e po@r

23. A syerem t sid to be srabb if:


(A) dery bounded inpur Eulrs in a bounded ourput
(B) lrperpositin applies to that sFtefr
(C) th. syslem is tine invdhnl
(D) tlE output des nor bgin befor. rhc nlp tundion aplli.I

29- The outpur ot LI stsrm is egual ro rh. :


(A) prod!.|ot imPtl* 6Fr and input sluft
(B) snm of impul& Gpor .nd inpur sq!6e
(C) mvolutio. or inpur and t!@rer tun $m
(D) @nvolution or impul* Bpotu. and inPtr *qumc

30. WlEr b the condido rd *istene oI Folrir baftrm or a sigmt ,(r) ?

1A) IrsiSnalrO is absolurely inregrable


(B) If signal j(4 rs penodk
(c) rr signat:o isaPanodic
(D) No sch cdditi@ exisls

31. ThetrjgdmeEi( Ftui.' *ri6 ot an even tumrion dej nor have th :


(^) dc r.rm (B) sie rem
(q GnE lm 1D) odd hamic rens

32, A linite duhridhso sided Fqucncc,s ROc :


(A) EntiF z plane excepr z= 0 and z =s
(B) h r dn8 Gmuld reBion) in th. z plare
(c) EntiE z pl,ne xcpt z =0
(D) Inside 6 .ircle cmtding ongin

155/2Or4
33- Aboul rhe rcal,zation of LTI slt(ens, which ahong the rolldwing slaledenl is iost
(A) IIR 6ystemc can be inplemmled Rusively onl]
(B) FtR s'sths cd be imPbmenled r<!tslvcly or non{<usively
(c) both (^) and (B) are cotKt
(D) IIR lstN c.n be implen.ntd ldEivly or non'ftBtwly

3r, For efficimt cd!!ttion of 16 pdinl DFI :

(A) radix 2 FFT tlgorithm is Md


(B) dict c@Irt tion FFT is u*d
(c) radit 2 DIT FFI alEorifin is used
(D) Edix 4 FrT aEorithm is u*d

35. who the phase .harfftailtic ot . lilter is li@r wlt in itr Pas ban4 the 8rcup dlay or E

(A) ao (B) @dr.nt (c) lnlqr {D) non li@r

36, An dDlor {qn.lis b"nd lrmil.d lo 4 kIIz, $npled .r Nyquisl tate rnd rhe Dmd6 e
qu.nh*d;to 4 levels The{u,nrird l*Laresuftd to b? ind.Fndmt and equiP'ob.bb
If we kansm t*o q!.ntired sanples p.f t*nd, th inlo.mtion 6te ir
(A) 1 (B) 2 (c) I (D) 3

37. A Faisoi$ion line of chtra.lrirlic thPedanc 50 (I is tminalcd !y . 50 O load whm


x.ild by a sinus .t voli.A. !ou(e .r 10 Clt& th Ph4e dififtfte betws two poinrs

spa.d 2 mh aPart on rh lire B round to h ;r.dia6 rh. PhaF veldty or rhe wave

. (A) o.8x1d n/s (B) 1.2x1d m/3


(c) 3x1d m/s (D) l6xldm/.

33, The inbilec imFda@ of fft sPae is I

l^) 75 tr @) ma (c) 7:l o (D) 120 O

39. Dui.s nighl which layd do* nol etist I


(A) D layd (3) Fr htq (c) Frlay* (D) Elava

40, R.diation aristanca oi I/2 dipole b :

(B) 7s o (c) 7J O (D) 120 n

155/2014
lP.T,O.l
41. The doni@nr wav ol R.tan8al.r @wguidc G:
(^) TErr (B) Ero (C) (D) TMn

e| n.rmrlly ar the cuta? or " perA I diel{ki(, ir ij


IAI lu ly r?n'nfrPd
(B) tully pnetd

(D) partially hasmittd and parrially EflEred

43. A lnitom plane det,l)fugtuhc rave popagaring in i-difthon have :


(a) r;.omPomnt onlv
lB) Conponcnb oI L and H n rn,r6-t'on only
(C) componenb or E and H only in dihtion prpandiculd ro r-diFtio
(D) Hr compone.t only

44. VSWR of a lin lrdimtd in an oper circuit is :


(A) iniinfty (B) 0 (c) 1 (D) -1
45. Fd BIBO stability or a systm whi.h ol Lttowing shrmr ir clrcr
rh ?
(A) aI mls ot th duEcbislic glatid must Ue in RI Is plare
(B) .'l oots Nst be in lh. LHs plane
(c) tuts nust lie either on jw ari' or I.trS plane
{D) @ts nust te iths on jw .iis or RIIS plare

46, The nusbr or poles in tne ltt half plan, ;Eht nau plane and on th jw axis on b found

(a) plot
Root locus (B) Nyqliet cnrerim
(C) Msont Eain tomula (D) R@th Husitz.ritridn

47. For tEquency domin elrsis ot sysrn,, lhe Nrho& avaitabte ar :

{a) Nyqui$ plor (t) Bod pld


(g Borh (A) and(B) (D) Rd to6 plot

48. Sjgn.l Flob cEph applies :


(a) !o au 3Fre6 (B) only to rinear systetu
(c) only ro dhdete dy$ms (D) only ro.on tiner srsrehs

49. r''hphalis and dftmprDsis is rsociatd with:


(A) AM b@dcasting (B) Tv bredcfrting
(C) Atuiur emnunicarion (D) FM brcadcdring
1L/2074
50. Gn be u*d
lor dE dmJubthn or PM.
(A) FM dcmduLior lollodd by an n'Egnkrt
(B) AM d@dul.tor lollowd tY . 6lEr
(c) E.EloF d.rt(ror with a lo* p.$ riller
{D) FEqurry cmvdter

5r, IlEm du. to iEufticlht $hPling 61. callc<l :


(a) .t.sins (3)', quanrisation drc!
(c) .loFovElod (D) gr.nnuhr e'or

52. A s'8nal n(r) thil liniied ro 3 kHz ls smPl.d .t a ate lt I x highd rhan Nvqui$ Ble'
whal ir the..tual sahPlinE rate ?
(^) 6{00 Hz (B) 8000 flz (c) 6600 llz (D) 3300 H'

53, Th. numbs ol nEstaa. poinle in the ntBl sP.ce di.gnm of BFSK is :

(^) 8 (B) 6 (c) | (D) 2

5a. The Pnhtry objetive ol sFF.Uy fii.iat hodulati.n is lo :

(A) Mrimiz Power dici*Y


(B) Educ bt emr E|e
(c) maxini4 th b.ndwidth eltici69
(D) iopffsNR

55, Av@te intonallon cdtdrt F @R synb.l of a dE4te mmorylc$ @c is lErEEd

{A) infmdon r.r. (B} entroPY


{C) infod.tion caPtcity (D) dala emPetion

56. Tl Pow* sPcttrl d*iny ot . slationary prffi is alw'y3 :


(A) Fo (B) P6itiv. (c) ncsadve {D) non n'Bative

s7. For th. ffi bir 6.rg)| !o noi* d63i9 Ftio lh bil ffir
rab oI :
(A) Coh.rmtBFSK itl6 (8) ciheFnl BI5K B ls
(c) BP5K.nd BFSK a$re (D) Br5K.nd BFSK bt comParcd
"nnot
5!. A ontinuds tin 5i8ml an nvert.d to dird.re time sigol bv :
b
(A) smptin8.n<l {o.ntising (B) qudntising and ehPlin8
(c) Mvoluting with lr.in of Puls (O) l@ pss lihenn8 and difr'Entitiid

raa/2m1
lP.r.o.l
59, Theimpul* Bpon* ot a linear lime invarianl 6lter Elched lo an inpur si8nal is
(A) inplr sianar isdf
(B) dla],ed veE on or ih input
(C) bne re6ed and dlayed vFion of input -
(D) dlayed input multiplicd with . cmsrant

input !o a stable lirear tihe invdiant tilts is statimarv rkd


(B) non d.rioi.ly (c) 4ndon
61,
(A) an 8 bit registel in the ridoprca$or
(B) a 16 bit rcgisb rn rhe niooproft$d
(C) a *t oI mmory l@tions in R/w nmory elened lor doring innrmrim Ehporan),
duing the e,{ution ol a pregram
(o) a 15 bir Ilrmory :ddrs siorRl in thc prcaram counter

6! Th. OUT iNhclim :


(A) sds rhe dala from rgbter lo.rrr pon
(B) *nds the dara flm acmLror ro outPrr p6.r
{Cl sds ddr, frm remory lmrion to.ulput pod
{D) *nds dp flaa pgitter @ntot to a@mulator
63. cosidrr an inveding amplifier sntiSuririon using dpamp with slry Ere I V/pl' Th.
valu of resistm usd in the ciruit k R/=I{.=l0lll What is the shdtest inte{al ot rth.
rhat th input pdse.orld rise to 5 v wjlnout exceedirg the ar|lti6el! stew E[e ?
(q 0r Fs

64, A cMG invdter can be rormed lroh th proper.onnfttion or NMO6 rEnsislor Qr ind
PMos rraftisror Qr. nF com(rion will bc (power supply @nndion, prc?dly gi@h) |
(A) Or and O, parallel, i/p lo g.t ot bod\ o/p d!.:! ot bolb supply to drain
(B) q and Q, paranel i/p to Ear. or bo$ o/p.lDin of Q2
(C) Q, and q in s6ies, dEin di q b drail of q, to Sate or both, o/p lron drain.
SupplY ro sutr of Q? '/p
(D) q dd Q, in *ris, supply ri' i\rp or q, i/p ro gare or bor.\, o/p rrom dEin

65. l!'ire ANDinS is pGsible wit] :

{A) SchdkY rrl-


(c} rorem pore ourPlr (D) oFn collcror dtput
755lXn1
65. O@ atME lhe ioltMing is nol .n aPPliotim of fliP noPs Whkn is 0ut ?

(A) dat stoEge (B) fr.qMcv divition


(c) trqlenc.v onffiid (D) multivibrator

67. Fd .n n smicmductor Feni ldel li6


llF :

(A) i6r belfl the cotdu.rion btnd


(B) Just .bovc the valeN
b.nd
(q ar lh Fre of the fobidde. btnd
(D) inside lh ealoce band

63. An oPtiel fibq @ndocE Ughr but an t tlide a Edio fEqu'fty eiEEl b<au* :
(A) OPtic.l ffber .annol suPporl EM 6dt ii6
(B) Optt.t fib.r tupFris EM Ediatio It and drly il th. d<li.ltm wav'l'ddh is tuh
ih,rl.r thln tib1s coF diinEr.r
(q OPdl fib.B @Mol $Pto irau*ie ld{ {han cut'of tqr6tv
{D) RF 6&n.k .D TEM siSnl!

69, cimFndin8 is u*d to :


(A) drcm d.grad.[on in s/N ratio
(E ovsoru rll#ing
(c) de@m. quanti$Ed mr
(D) t(F* d.la Er

m, DouHe sPotlin8 in ndio E elv.6isdu.to:


lF,nPlifiE
(A) lN g.in ol (B) hiSh Ir
(c) pd ldal dill.td hcltry (D) Pd eeleliv'iv of RF tnd IF t&{@

tt. !o. a Hdrti.n dPole anl6m rhe halt Pow b,ffiidth in th' E Pbt' it I

(A) 360' (B) 180' (q m' (D) 45'

72, The dydni. itnSe of ,n 8 bt ADc i5 :

(A) 256 dB {3) 1182dB lcl nzdB (D) 8dB

t3. Dpth ol.clh$i. c.. b. delfrin d !s'ng ;

(A) EEC (B) [cc


(c) EMG (rr) None of ihe (A, (8) or (c)

t1 7r5/20t4
lr.T,o.t
ir an ex.mple oI non ,ei8hbd.ode.
lAr BcD (B) cray code {c) Binary

75- Atmchbnous ounreE are pef{d in tome aPPljelions due to th. fet 6,t :
(A) they aE taFter (B) they requir lss nnnbq ot oiP nops
(c) thcy rre easy to dsign (D) they have leier proPsSdhon dela]s

76. wlrich am6g the lolloting .in be usd as { volta8 vdiabl rsistor ?

(A) lFf (B) BJT (c) UJT (D) Diode

7Z The Nor!.n quilalentdrun and rhc'lh&enin equivalent.imit ofa given cimit isdBwn.
lf Z,m is tfic inremal impedanft of lnev.nin circuit and ZN k th. inlernal inpedare of
orftnt &ra nr Nonon cirun:
l ) zN-1/21h p) zN-z.F
,, /N-/nl rD, /\.'dlfr,dfdb".ompd.ed

73. A3 input NAND gate is available as a cncult elemmt. Tne nthod in wh(hit.an be
Mverted to an nvdbr n {As!ft A" B, C d dE inPuts of NAND) :
(A) rhort ,\, B and c and uF it as sinSle inPut rd invder
(B) short A dd B and aP?Ly iogic 1 !o dui, !e C a5 ihe input lor inv.nd
(Cl rlDn .nd B and u* il as input for invne and cod{t C to logic 0
(D) both (A) and (B) nrhods can b uted

79. choGe thc cotecl stdtenni regardihs SuPerPosiiion ThoPm :


(A) Sup..p@nion Itord can be apPlied to an ntuorks
G) Srp.rtcilion Th@rem can.ol be n*d l itlt .uffit ertes
ic) suF rflditiDn Thoren can b apPri.d to linft cjmils only
(D) SuFrpocinon Thsm Gnnol b. applied lo cinire conlainiq inductors

30. The filkr whic[ is pletered fo u* with Ktifi-s for road dftnts incGs of 50 mA is :
(A) LC filter {B) Rc rilter (c) cfiltd (D) L tiltd

31, Comd is the Eibutory or


(A) YamuN (B) cansa (c) Godavri (D) Mahanadi

82. Narhulr Pnsr k ldiled in *hich nalr l


(B) ,\m.nar Pradeh

755/2014 12
83, r,h?st Schedule.l Tnbe popurahont tound in whdr slaie :

(A) co. (Bl $krin (c) Kesla (D) Nasaland

34. Ssal unemplormcnr EleE to :


(^) Banrs (B) Priv.tp s..td (c) Pubfic sdtor (DJ gri.nlrlE

85. is a pan of Ldd Devlopfrdr Brnk.


(A) Fmd corporalk'n ol hdia (B) cmpralile Cre.lil stru.tu.
(c) conm.rDl nrnrs (D) Indushal oeveloprenr frJik

86. Abhi,rav BhaEi S.tiety ras tolndd by whom :

(A) htindranath (B) v.r). Salar(d


{C) Chandrashekdr ,^zad (D) Sur Da

37, Thh&l novmmt relared with which pla.e :

(A) lihar (B) Gljahi (c) Hlde'abad (D) lrensal

33, commonweal was edited by l


(a) S,N sanete (B) Anni 8ent (c) sarqini Nridu (Di Til.k

69. In our conetituhon whi.h ; el.ted


aiiclr to the ll.tion Confiissi.n :

(A) 314 (B) 324 (C) 352 (n) 371

90, ltho is the Chaiman ot Fimn.e Com*sion ar tr6r in Indir ?

(A) Y. Vnugopal Reddy (B) N.KP. salwe


(c) K. Sanrhanan (D) K.c. Pantr

91. who is 0E Aurhd.t tne ftdk " rrrin to Pakklrn- ?


(A) R.K Naray.n (8) Kushwant sin8h
(C) Mulk RajAnand (D) Mallana Azad

92. Th arr fom ir Kdal. known as lilor tmt lothnloli :


(A) Theyyan (B) Chakir Koothu
(c) Koodiyattaft (D) Ott'm flrullal

93. Hory frany disfnts ire lhft in thc trwly ioftd Tlan8.na grrre ?

{A) 9 (B) 10 (C) 13 (D)

13 t55/2011
{P.r.o.l
94. Wnich colour in the OlynPic rinSs intlicate Asian C.ntiml ?

(A) c4en (B) Red ic) Yellow (D) BlacL

95. llighest town in Kdala is :

(A) Mund (B) Kartapana (C) KalPeha (D) Rajakumdi

96, The largst underytund water elecrri( Power stahon in Kdald l


(A) Idukti P) Pailivasl (c} Mmlatuttom (D) ldahalaya.

97, Who was the ediior ot'MilavadL ?


Keshawahdon
(A) K.P. (B) K.
(c) Ayyankali (D) c. ^yyaPpan
K shnan

98, The year of Guruvayer s.tyagnha l


(B) 1930 (c) 1e34 (D) 194r

99. Aaoding to Candhiji -- is a "nnacb 6f nodd rifts"


(A) va*kom satyagraha
(B) Abolhhionof slavery
(c) Tehtle nby Pml.matio of 1936
(D) F edm or otr. @untry

100, Chrfiampi Swar*al attained Samadhi al Panmdnt in tlE year :

(A) 1809 (B) 1903 (C) 1909 (D) 1924

t's/2014 t4

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