155-2014 Question Paper
155-2014 Question Paper
(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 :
8. The Pn * sluft indued by rhe eim bridgG in t wi'n brid$ oscitllror at d lftqutrv oI
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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
(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
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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
2r. SomproFii6 of ncSatile leedback e lisFd ()rcc tht PrcPerrywhj'i i! not aPPli'al'le
!o regatile fdM.k :
oR irpu, ot d 2 ,npu, f\OR g.te h !.anrt lqtl hr loBr I and to th other rnPul'A'! siven
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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
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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
35. who the phase .harfftailtic ot . lilter is li@r wlt in itr Pas ban4 the 8rcup dlay or E
36, An dDlor {qn.lis b"nd lrmil.d lo 4 kIIz, $npled .r Nyquisl tate rnd rhe Dmd6 e
qu.nh*d;to 4 levels The{u,nrird l*Laresuftd to b? ind.Fndmt and equiP'ob.bb
If we kansm t*o q!.ntired sanples p.f t*nd, th inlo.mtion 6te ir
(A) 1 (B) 2 (c) I (D) 3
spa.d 2 mh aPart on rh lire B round to h ;r.dia6 rh. PhaF veldty or rhe wave
155/2014
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41. The doni@nr wav ol R.tan8al.r @wguidc G:
(^) TErr (B) Ero (C) (D) TMn
46, The nusbr or poles in tne ltt half plan, ;Eht nau plane and on th jw axis on b found
(a) plot
Root locus (B) Nyqliet cnrerim
(C) Msont Eain tomula (D) R@th Husitz.ritridn
52. A s'8nal n(r) thil liniied ro 3 kHz ls smPl.d .t a ate lt I x highd rhan Nvqui$ 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 :
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$re (D) Br5K.nd BFSK bt comParcd
"nnot
5!. A ontinuds tin 5i8ml an nvert.d to dird.re time sigol bv :
b
(A) smptin8.n<l {o.ntising (B) qudntising and ehPlin8
(c) Mvoluting with lr.in of Puls (O) l@ pss lihenn8 and difr'Entitiid
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59, Theimpul* Bpon* ot a linear lime invarianl 6lter Elched lo an inpur si8nal is
(A) inplr sianar isdf
(B) dla],ed veE on or ih input
(C) bne re6ed and dlayed vFion of input -
(D) dlayed input multiplicd with . cmsrant
64, A cMG invdter can be rormed lroh th proper.onnfttion or NMO6 rEnsislor Qr ind
PMos rraftisror Qr. nF com(rion will bc (power supply @nndion, prc?dly gi@h) |
(A) Or and O, parallel, i/p lo g.t ot bod\ o/p d!.:! ot bolb supply to drain
(B) q and Q, paranel i/p to Ear. or bo$ 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
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!
tt. !o. a Hdrti.n dPole anl6m rhe halt Pow b,ffiidth in th' E Pbt' it I
t1 7r5/20t4
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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 ?
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
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
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83, r,h?st Schedule.l Tnbe popurahont tound in whdr slaie :
93. Hory frany disfnts ire lhft in thc trwly ioftd Tlan8.na grrre ?
13 t55/2011
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94. Wnich colour in the OlynPic rinSs intlicate Asian C.ntiml ?
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