EXAMSTARTTIME:14:00:00EXAMDURAITON:03:00:00

TOTALNOOFQUESTIONS:200

EXAMDATE:25092016EXAMNAME:BSNLOnlineExamination2016TOTALMARKS:200

Question1.PicktheAntonymfortheword"Abbreviate"Options:a)abridgeb)expandc)achieved)acceptCorrectAnswer:expandQuestion2.AsentenceisgivenintheDirect/Indirectform.Outofthefouralternativessuggested,selecttheonewhichbestexpressesthesamesentenceintheIndirect/Directform:"Youhavealldoneamarvellousjob!"saidtheteacher.Options:a)Theteachersaidthattheyhavealldoneamarvellousjob.b)Theteacherexclaimedwithhappinessthattheyalldidamarvellousjob.c)Theteacherexclaimedwithhappinessthattheirjobwasmarvellous.d)Theteacherexclaimedwithhappinessthattheyhadalldoneamarvellousjob.CorrectAnswer:Theteacherexclaimedwithhappinessthattheyhadalldoneamarvellousjob.Question3.Markthemostappropriatesubstitutetofilltheblanksinthegivendescription:Davidcleanedhisroombystuffingeverything______________hisbed.Options:a)Inb)Onc)Underd)AlongCorrectAnswer:UnderQuestion4.Changethefollowingsentencesintopassivevoice:Theygreetmecheerfullyeverymorning.Options:a)Iamgreetedcheerfullybythemeverymorning.b)Iambeinggreetedcheerfullybythemeverymorning.c)Cheerfulgreetingisdonebythemeverymorningtome.d)EverymorningIwasgreetedcheerfully.CorrectAnswer:Iamgreetedcheerfullybythemeverymorning.Question5.Thefirsttwowordsarerelatedinaparticularmanner.Selectthewordfromgivenchoices,whichisrelatedtothirdoneinthesamemanner:GRAIN:SALT::blades:Options:a)glassb)cutc)grassd)steelCorrectAnswer:grassQuestion6.ChoosethewordwhichistheexactOPPOSITEofthegivenwords:PROSPEROUSOptions:a)distressedb)helplessc)underprivelegedd)worseCorrectAnswer:underprivelegedQuestion7.Choosetheappropriatewordintheblankfromthegivenalternatives.Theyarrivedattheconclusiononlyafter_________allpossibleavenuesofresearch.Options:a)seekingb)exploringc)diagnosingd)embarkingCorrectAnswer:exploringQuestion8.Choosethecorrectpluralofthefollowingword:Roof

Options:a)Roofsb)Rooesc)Riesd)RoofesCorrectAnswer:RoofsQuestion9.Selectonewordwhichisclosestinmeaningtothestatementinthequestion:OnewhopossessesmanytalentsOptions:a)Versatileb)Nubilec)Exceptionald)GiftedCorrectAnswer:VersatileQuestion10.Fourpartsofasentence(P/Q/R/S)aregiven.Arrangethemintherightordertoproduceacorrectsentence:evenwhen/arewellinformed/peopleengagedinaconversation/theirconversationmaybedullP/Q/R/SOptions:a)QSPRb)PRQSc)SRQPd)SQRPCorrectAnswer:PRQSQuestion11.InIndiaTropicofCancerdoesnotpassthroughwhichofthestate

?Options:a)MadhyaPradeshb)Maharastrac)Gujaratd)ChatissgarhCorrectAnswer:MaharastraQuestion12.LowestLiteracystateinIndia,asper2011Census

2011Options:a)Telanganab)Biharc)Rajasthand)ArunachalPradeshCorrectAnswer:BiharQuestion13.TheinstrumentusedformeasuringthePurity/DensityorrichnessofMilkis

/Options:a)Glucometerb)Hydrometer c)Spectrometerd)LactometerCorrectAnswer:LactometerQuestion14.WhoisthefounderofArtofLivingconcept

?

Options:a)SrisriRaviShankarb)BabaRamdevc)MorariBapud)AasaramBapuCorrectAnswer:SrisriRaviShankarQuestion15.TheSecretariatofSAARCislocatedat:

SAARCOptions:a)Colombob)Kathmanduc)Dhakad)NewDelhiCorrectAnswer:KathmanduQuestion16.Whatisdryice?

Options:a)frozenammoniab)frozencarbonmonoxidec)frozencarbondioxided)frozenhydrogenoxide CorrectAnswer:frozencarbondioxideQuestion17.Brightestplanetofoursolarsystemis

Options:a)Marsb)Venusc)Jupiterd)MercuryCorrectAnswer:VenusQuestion18.Decimalsystemofnumberoriginatedin?

Options:a)Greeceb)Germanyc)Chinad)IndiaCorrectAnswer:IndiaQuestion19.Whichoneamongthefollowingisasourceofrenewableenergy?

?

Options:a)Woodb)Fossilfuelc)Windpowerd)CoalCorrectAnswer:WindpowerQuestion20.Whichoneofthefollowingpairsisincorrect?

?Options:a)JeevMilkhaSinghGolfb)IrfanPathanCricketc)SaniaMirzaBadmintond)SabaAnjumHockeyCorrectAnswer:SaniaMirzaBadmintonQuestion21.LetAandBbenonsingularsquarematricesofthesameorder.Considerthefollowingstatements.I.(AB)T=ATBTII.(AB)1=B1A1III.adj(AB)=(adj.A)(adj.B)IV.(AB)=(A)(B)V.|AB|=|A|.|B|

Whichoftheabovestatementsarefalse?

AB?I.(AB)T=ATBTII.(AB)1=B1A1III.adj(AB)=(adj.A)(adj.B)IV.(AB)=(A)(B)V.|AB|=|A|.|B|Options:a)I,III&IV

b)IV&V

c)I&II

d)AlloftheseCorrectAnswer:I,III&IVQuestion22.

Options:a)Log(ex1)

b)Log(1ex)

c)Log(ex1)

d)Log(1ex)CorrectAnswer:Log(1ex)Question23.Thedivergenceofvectorxi+yj+zkis

xi+yj+zkOptions:a)i+j+k

b)3

c)0

d)1CorrectAnswer:3

Question24.ThetransposeoftheCofactorMatrixiscalled

Options:a)Adjointmatrixb)Skewsymmetricmatrix c)Cofactormatrixd)Noneofthese CorrectAnswer:AdjointmatrixQuestion25./20(logtanx)dxequalto

/20(logtanx):Options:a)/2loge2

b)/2loge2

c)/2loge2

d)0CorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion26.Everydiagonalelementofaskewsymmetricmatrixis

:Options:a)1

b)0

c)Purelyreal:d)Noneofthese CorrectAnswer:0Question27.Whichoneofthefollowingiaananalyticfunction

?Options:a)f(z)=sinz

b)f(z)=z

c)f(z)=Rz

d)f(z)=Im(z)CorrectAnswer:f(z)=sinzQuestion28.Differentialequationareequationsthatinvolve____________Variablesandtheir___________withrespecttothe____________variables.

,_______________________________Options:a)dependent,derivatives,independent,,(dependent,derivatives,independent)b)independent,derivatives,independent,,(independent,derivatives,independent)c)dependent,derivatives,dependent,,(dependent,derivatives,dependent)d)noneofthese CorrectAnswer:dependent,derivatives,independent,,(dependent,derivatives,independent)Question29.TheFourierTransformationofasinewaveis

Options:a)StraightlineparalleltoXaxisXb)StraightLineparalleltoYAxisYc)ASineWaved)LinePassingthroug(0,0)(0,0)CorrectAnswer:StraightLineparalleltoYAxisYQuestion30.FirstOrderDifferentationofanyfuntionatapointis

Options:a)SlopeofPerpendiculartofunctionatthatpointb)Slopeoftangenttofunctionatthatpointc)Valueoffuntionatthatpointd)Noneofthese CorrectAnswer:SlopeoftangenttofunctionatthatpointQuestion31.Thefunction(x)=3x(x2)has:

(x)=3x(x2)Options:a)minimumatx=1x=1b)maximumatx=1x=1c)minimumatx=2x=2d)maximumatx=2x=2CorrectAnswer:minimumatx=1x=1Question32.

Options:a)1/x

b)1/x

c)ex(1/x)

d)ex(1/x)CorrectAnswer:1/xQuestion33.

Options:a)1/9log(4+9)+e

b)1/9log(4+9)+e

c)1/9log(4+9)e

d)noneCorrectAnswer:noneQuestion34.sec3xtan3xdx=

Options:a)1/3sec3x+c

b)1/3sec3x+c

c)1/3secx2+c

d)noneCorrectAnswer:1/3sec3x+cQuestion35.sin23xdx=

Options:a)

b)

c)

d)noneCorrectAnswer:

Question36.

Options:a)a=2

b)a=1

c)a=2

d)a=1CorrectAnswer:a=1Question37.Ifthevectors2i3j+k,3i+xj+kareorthogonalthenx=

2i3j+k,3i+xj+k'x'Options:a)2

b)4

c)2

d)1CorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion38.Findtheanglebetweentwovectorsaandbwithmagnitudes3and2respectivelyhavinga.b=6

3and2a.b=6ab?Options:a)45

b)90

c)180

d)30CorrectAnswer:45Question39.Uranium(Z=92,A=238)emitsaparticle.TheproducthasAandZ

(Z=92,A=238)aAZ

Options:a)236,92

b)234,90

c)238,90

d)236,90CorrectAnswer:234,90Question40.Mostpenetratingradiationofradioactiveelementis

Options:a)raysb)raysc)raysd)XraysXCorrectAnswer:raysQuestion41.Anylengthoftransmissionlinemaybemadetoappearasaninfinitelylonglineby

Options:a)leavingthelineopenattheendb)increasingthestandingwaveratioaboveunityc)shortingthelineattheendd)terminatingthelineinitscharacteristicimpedanceCorrectAnswer:terminatingthelineinitscharacteristicimpedanceQuestion42.Whichofthefollwingcanbeusedtomeasuresrms,peakandavergevalueofana.cvoltage?I)Hotwireinstrument.II)Rectiferinstrument.III)Megger.IV)CRO

,?I),II),III),IV)CROOptions:a)IandIIonlyIIIb)IIandIIIOnlyIIIIIc)IIIOnlyIIId)IVOnlyIVCorrectAnswer:IVOnlyIVQuestion43.Fluxmeteruseswhichofthefollowingeffect

:Options:a)Magneteffectb)InductionEffectc)HallEffectd)electricaleffectCorrectAnswer:HallEffectQuestion44.TheQmeterworksontheprincipleof

Q__________________

Options:a)mutualinductanceb)selfinductancec)seriesresonanced)parallelresonanceCorrectAnswer:seriesresonanceQuestion45.Aconverginglensisusedtoformanimageonascreen.Whentheupperhalfofthelensiscoveredbyanopaquescreen

Options:a)halfoftheimagewilldisappearb)imagewillnotformonthescreenc)intensityofimagewillincrease d)intensityofimagewilldecrease CorrectAnswer:intensityofimagewilldecrease Question46.Astoneisdroppedinawellandsplashisheardafter1.5secondsafterthestonehitsthesurface.Ifthevelocityofsoundis327m/s,thedepthofwellis

1.5327m/s?Options:a)218m

b)227m

c)490.5m

d)Noneofthese CorrectAnswer:490.5mQuestion47.AcinemaHallhasvolumeof7500m3.Itisrequiredtohavereverberationtimeof1.61seconds.Thetotalabsorptioninthehallshouldbe_______(consider0.161asmultiplicationfactorintherelaventformula)

7500m31.61_________(1.61)Options:a)7500sabians

b)750sabians

c)1980Wm2

d)995OWUCorrectAnswer:995OWUQuestion48.PotentialDifferenceis

Options:a)ScalarQuantityb)VectorQuantityc)BothScalarQuantity&VectorQuantityd)Noneofthese CorrectAnswer:ScalarQuantityQuestion49.Lightwillundergoapathdifferenceoflamda/2

________?

Options:a)glassairb)glasswaterc)glassdiamondd)airalcoholCorrectAnswer:glassdiamondQuestion50.Visiblespectrumliesbetween

Options:a)radiowavesandmicrowavesb)infraredspectrumandultravioletrays c)microwavesandinfraredspectrum d)xraysandgammaraysCorrectAnswer:infraredspectrumandultravioletrays Question51.Laserisadevicefor

Options:a)productionofbeamofwhitelightb)producingabeamofnonchromaticlightc)producingabeamofhighintensityraysd)producingabeamofhighlypenetratingxrays CorrectAnswer:producingabeamofhighintensityraysQuestion52.Thephenomenonofresonanceisusedin

:Options:a)radiob)capacitorc)transformer d)amplifierCorrectAnswer:radioQuestion53.Unitofwavelengthis

Options:a)

b)meterc)s1

d)secondCorrectAnswer:meterQuestion54.Theintramolecularattractioninsolidsis

Options:a)lowb)thegreatestc)nild)fairlygoodCorrectAnswer:thegreatestQuestion55.Verysmalltimeintervalsareaccuratelymeasuredbythe

.Options:a)Pulsarsb)Whitedwarfs c)Atomicclocksd)QuartzclocksCorrectAnswer:AtomicclocksQuestion56.Wavestravelingthroughasolidmediumare_____

.Options:a)Transversewavesb)Longitudinalwavesc)eitherofthebothd)None CorrectAnswer:eitherofthebothQuestion57.A680loadresistorRL,isconnectedacrossaconstantcurrentsourceof1.2A.Theinternalsourceresistance,RS,is12k.TheloadcurrentthroughRL,is

680RL12kRLOptions:a)12A

b)1.2A

c)114mA

d)1.14ACorrectAnswer:1.14AQuestion58.Abatteryhasashortcircuitcurrentof30Aandopencircuitvoltageof24V.Ifthebatteryisconnectedtoanelectricbulbofresistance2,thepowerdissipatedbythebulbis

30A 24V2Options:a)80W

b)1800W

c)112.5W

d)228WCorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion59.Whilethevenizingacircuitbetweentwoterminals,Vthequals

,Vth:

Options:a)shortcircuitterminalvoltage b)opencircuitterminalvoltage c)EMFofthebatterynearesttotheterminalsd)netvoltageavailableinthecircuitCorrectAnswer:opencircuitterminalvoltage Question60.Whilecalculatingtheveninresistance(Rth),constantcurrentsourcesinthecircuitare

(Rth),_________Options:a)replacedby'opens''b)replacedby'shorts''c)treatedinparallelwithothervoltagesourcesd)convertedintoequivalentsourcesCorrectAnswer:replacedby'opens''Question61.Amperesecondcouldbetheunitof

_____________Options:a)powerb)conductancec)energyd)chargeCorrectAnswer:chargeQuestion62.Theaboveresultswereobtainedfrommeasurementstakenbetweenthetwoterminalofaresistivenetwork.TheTheveninresistanceofthenetworkis

:

Options:a)16

b)8

c)0

d)CorrectAnswer:8Question63.Forthecircuitfindtheequivalentthevenin'svolatgeandresistance

:

Options:a)100V,75

b)100V,55

c)155V,75

d)155V,55CorrectAnswer:155V,55

Question64.Inanetworkconsistingoflinearresistorsandidealvoltagesource,ifthevalueofresistorsaredoubled,thenvoltageacrosseachresistor

,,:Options:a)increases4timesb)remainsunchangedc)doubledd)reducedtohalfvalueCorrectAnswer:remainsunchangedQuestion65.Thermsvalueofthecurrentinawirewhichcarriesad.c.currentof10Aandasinusoidalalternatingcurrentofpeakvalue20Ais

,10A20A,:Options:a)10A

b)14.14A

c)17.32A

d)15ACorrectAnswer:17.32AQuestion66.Four100Wbulbsareconnectedinparallelacross200Vsupplyline.Ifonebulbgetsfusedthen:

100W200V:Options:a)nobulbwilllightb)allthefourbulbswilllightc)restofthethreebulbswilllightd)Noneofthese CorrectAnswer:restofthethreebulbswilllightQuestion67.Petroleumjellyisappliedtotheterminalsoftheleadacidbatteryinordertoprevent

___________Options:a)corrosionb)localheatingc)shortcircuiting d)alloftheseCorrectAnswer:corrosionQuestion68.Afuseisprovidedinanelectriccircuitfor

?Options:a)safeguardingtheinstallationagainstheaveycurrent b)reducingthecurrentflowinginthecircuit c)reducingthepowerconsumption d)AlloftheseCorrectAnswer:safeguardingtheinstallationagainstheaveycurrent Question69.A60%laggingpowerfactorimpliesthattheloadis

60%______________

Options:a)inductiveb)capacitivec)inductiveorcapacitived)resistiveCorrectAnswer:inductiveQuestion70.________isaunitusedinradioastronomytomeasurethestrength(fluxdensity)ofradiosignalsfromspace

() Options:a)Ampb)Janskyc)Hertzd)KnotCorrectAnswer:JanskyQuestion71.Nortan'sTheoremresultsin

Options:a)aCurrentsourcewithanimpedanceinParallelb)aVoltagesourcewithanimpedanceinseriesc)aVoltagesourcealoned)aCurrentsourcealoneCorrectAnswer:aCurrentsourcewithanimpedanceinParallelQuestion72.Anidealvoltagesourcewillchargeanidealcapacitor

.Options:a)inInfinitetimeb)Exponentiallyc)Instantaneouslyd)Noneofthese CorrectAnswer:InstantaneouslyQuestion73.ReluctanceinMagneticcircuitsisanaloguesto____________inelectriccircuit

, .Options:a)Resistanceb)Voltagec)currentd)PowerCorrectAnswer:ResistanceQuestion74.Twocapacitorsof2Fand3Fareconnectedinseriesacross10V.Thepotentialdifferenceacrossthe2Fcapacitorwillbe

2Fand3F10.2F.

Options:a)4V

b)6V

c)10V

d)0VCorrectAnswer:6VQuestion75.Ifyouneedtodesignarelaxationoscillatorcircuit.Themostlikelydevicetousemightbe

:Options:a)aSCRSCRb)aUJTUJTc)aTriacTriacd)AlloftheseCorrectAnswer:aUJTUJTQuestion76.Theripplefactorofapowersupplyisameasureof

Options:a)itsfilterefficiencyb)itsvoltageregulationc)dioderatingd)purityofpoweroutputCorrectAnswer:itsfilterefficiencyQuestion77.Crossoverdistortionoccursin

Options:a)pushpullamplifiersb)classaamplifiersAc)classBamplifiersBd)classABamplifiersABCorrectAnswer:pushpullamplifiers[OR]classaamplifiersA[OR]classABamplifiersABQuestion78.Themaximumnumberofelectronswhichthevalenceshellofanatomcanhaveis

Options:a)6

b)8

c)18

d)2CorrectAnswer:8Question79.Dopingmaterialsarecalledimpuritiesbecausethey

,

Options:a)decreasethenumberofchargecarriersb)changethechemicalpropertiesofsemiconductorsc)makesemiconductorslessthan100percentpured)alterthecrystalstructuresofpuresemiconductorsCorrectAnswer:alterthecrystalstructuresofpuresemiconductorsQuestion80.InaPNPNdiode,breakoverconditionismarkedby

PNPN:Options:a)asuddendecreaseincurrent b)asuddenincreaseincurrent c)diodegettingburntoffd)asuddenglowtakingplaceCorrectAnswer:asuddenincreaseincurrent Question81.Inanamplifier,theoutputcurrentflowsfor200ofinputcycle.Theclassofoperationoftheamplifieris

200:Options:a)A

b)AB

c)B

d)CCorrectAnswer:ABQuestion82.InanPNjunctiondepletionlayeriscreateddueto

Options:a)Diffusionofionsb)DiffusionofMinoritycarriersc)DiffusionofMajoritycarriersd)DiffusionofMinority&MajoritycarriersCorrectAnswer:DiffusionofMajoritycarriersQuestion83.InaschmittTriggerUTP=12V,LTP=8V,thehysterisesVHis

...=12,...=8VH?Options:a)12V12b)8V8c)4V4d)20V20CorrectAnswer:4V4Question84.Inatransistor,maybeexpressedintermsofasbelow:

,:Options:a)/1

b)/1+

c)1+/

d)1/

CorrectAnswer:/1Question85.InputresistancesRiofidealvoltageamplifierandidealcurrentamplifierarerespectively

Ri:__________Options:a),0

b)0,

c),

d)0,0CorrectAnswer:,0Question86.InaclassABamplifierwithsinusoidalinputsignal,theoutputcurrentflowsfor

AB_________Options:a)halfthecycleb)fullcyclec)lessthanhalfcycled)morethanhalfcycleCorrectAnswer:morethanhalfcycleQuestion87.The3dBfrequencyofanamplifierisoneatwhichgainreducesto

3db_______Options:a)unityb)zeroc)1/2ofitsmidbandvalue1/2d)halfofitsmidbandvalueCorrectAnswer:1/2ofitsmidbandvalue1/2Question88.Inasingletunedcapacitancecoupledamplifier,thefrequencyresponsedependson

,:Options:a)onlytheinputcircuit b)onlytheoutputcircuit c)bothinputandoutputcircuits d)neitherinputcircuitnortheoutputcircuit CorrectAnswer:onlytheoutputcircuit Question89.Monostablemultvibratormaybeusedtogenerate

_________Options:a)sweepvoltageb)pulsesc)sinusoidalvoltaged)sweepcurrentCorrectAnswer:pulsesQuestion90.ThemaximumacpoweroutputfromaclassApoweramplifieris10W.Whatshouldbetheminimumpowerratingofthetransformerused?

Aac10W ?

Options:a)10W

b)15W

c)5W

d)20WCorrectAnswer:20WQuestion91.Ifahighdegreeofselectivityisdesired,thendoubletunedcircuitshouldhave

, _____________Options:a)Loosecouplingb)Tightcouplingc)Criticalcouplingd)noneofthese CorrectAnswer:LoosecouplingQuestion92.Asemiconductorhas_________temperaturecoefficientofresistance

_________Options:a)Positiveb)Zeroc)Negatived)Noneofthese CorrectAnswer:NegativeQuestion93.TheBooleanfunctionY=AB+CDistoberealizedusingonly2inputNANDgates.Theminimumnumberofgatesrequiredis

Y=AB+CD2NAND?Options:a)2

b)3

c)4

d)5CorrectAnswer:3Question94.WhichofthefollowingBooleanExpressionscorrectlyrepresentstherelationbetweenP,Q,RandM1

P,Q,RM1?

Options:a)M1=(PORQ)XORR

b)M1=(PANDQ)XORR

c)M1=(PNORQ)XORR

d)M1=(PXORQ)XORRCorrectAnswer:M1=(PXORQ)XORR

Question95.Iftheinputtothedigitalcircuit(inthefigure)consistingofacascadeof20XORgatesisX,thentheoutputYisequalto

20XORXY?

Options:a)0

b)1

c)X

d)XCorrectAnswer:1Question96.AsequentialcircuitusingDflipflopandlogicgatesisshowninthefigure,whereXandYaretheinputsandZistheoutput.Thecircuitis

DXYZ

Options:a)SRFlipFlopwithinputsX=RandY=SSRX=RY=Sb)SRFlipFlopwithinputsX=SandY=RSRX=SY=Rc)JKFlipFlopwithinputsX=JandY=KJKX=JY=Kd)JKFlipFlopwithinputX=KandY=JJKX=KY=JCorrectAnswer:JKFlipFlopwithinputX=KandY=JJKX=KY=JQuestion97.Aringcounterconsistingoffiveflipflopswillhave

:Options:a)5states

b)10states

c)32states

d)infinitestatesCorrectAnswer:5statesQuestion98.Whichoneofthefollowinglogicfamiliescanbeoperatedusingsupplyvoltagefrom3Vto15V?

3V15?Options:a)TTL

b)ECL

c)PMOS

d)CMOSCorrectAnswer:CMOSQuestion99.USBFlashDrive(USBMemorystick/Pendrive)is

USB (USB/ ):

Options:a)SRAM

b)DRAM

c)VolatileMemoryd)NonVolatilememoryCorrectAnswer:NonVolatilememoryQuestion100.NORGateisequalto

NOROptions:a)ORGatewithnegatedinputsORb)NANDgatewithnegatedoutputNANDc)NANDgatewithnegatedinputNANDd)Noneofthese CorrectAnswer:ORGatewithnegatedinputsORQuestion101.Thechargeofanelectronis:

Options:a)1.6x1017Coulomb1.6x1017b)1.6x1019Coulomb1.6x1019c)1.6x1021Coulomb1.6x1021d)1.6x1023Coulomb1.6x1023CorrectAnswer:1.6x1019Coulomb1.6x1019Question102.Oscillatorsarewidelyusedin

:Options:a)radiobroadcastingb)televisionbroadcastingc)radioandtelevisionrecieiverd)AlloftheseCorrectAnswer:AlloftheseQuestion103.264:Options:a)180

b)170

c)166

d)none CorrectAnswer:none Question104.Whichofthefollowingcircuitcanbeusedasparalleltoserialconvertor

?

Options:a)digitalcounterb)decoderc)demultiplexerd)multiplexerCorrectAnswer:multiplexerQuestion105.Astringof4bitsiscalledas

4 .Options:a)Bitb)Bytec)Wordd)NibbleCorrectAnswer:NibbleQuestion106.WhentheInputtoasevensegmentdecoderis"0100"thenumberondisplaywillbe

"0100",Options:a)0

b)2

c)4

d)9CorrectAnswer:4Question107.Whichofthefollowinghexadecimalnumbersrepresentsanodddecimalnumber

:Options:a)FF

b)EG

c)CC

d)AACorrectAnswer:FFQuestion108.Halfadderisalsoknownas

:Options:a)ANDcircuitAND b)NANDcircuitNAND c)NORcircuitNOR d)EXORcircuitEXOR CorrectAnswer:EXORcircuitEXOR Question109.Logic1inpositivelogicsystemisrepresentedby

1:Options:a)zerolevelb)lowervoltagelevelc)highervoltageleveld)negativevoltage

CorrectAnswer:highervoltagelevelQuestion110.Whichofthefollowinglogiccircuitsacceptstwobinarydigitsonitsinputsandproduce

,,Options:a)fulladderb)halfadderc)decoderd)multiplexerCorrectAnswer:halfadderQuestion111.MajordisadvantageofusingthreesetsofSCRsforvariablevoltagespeedcontrolofaSCIMisthe

(SCIM)3SCROptions:a)ConsiderableI2RlossI2Rb)Poorpowerfactorc)Longdelayofthyristorfiringpulsesd)NecessityofusingaprocessorCorrectAnswer:ConsiderableI2RlossI2RQuestion112.Whichofthefollowingconnectionisbestsuitedfor3phase4wireservice?

34?Options:a)

b)YY

c)Y

d)YCorrectAnswer:YQuestion113.ForthethreephasecircuitshowninthefiguretheratioofthecurrentsIRIYIIBisgivenby

3IRIYIIB:

Options:a)1:1:3

b)1:1:2

c)1:1:1

d)1:1:2CorrectAnswer:1:1:3Question114.Atransformertransforms

Options:a)frequencyb)voltagec)currentd)voltageandcurrentCorrectAnswer:voltageandcurrentQuestion115.Delta/starorstar/deltatransformationtechniqueisappliedto

// Options:a)oneterminalnetworkb)twoterminalnetworkc)threeterminalnetworkd)noneofthese CorrectAnswer:threeterminalnetworkQuestion116.TheresonancefrequencywofRLCcircuitisdefinedas

RLCOptions:a)Sqrt(LC)

b)1/Sqrt(LC)

c)Sqrt(R/LC)

d)Sqrt(LC/R)CorrectAnswer:1/Sqrt(LC)Question117.Tricklechargingofstoragebatteryhelpsto__________

____________Options:a)preventsulphationb)keepitfreshandfullychargedc)maintainproperelectrolytelevel d)increaseitsreservecapacityCorrectAnswer:keepitfreshandfullychargedQuestion118.Themainpurposeofusingcoreinatransformeristo_____________

Options:a)decreaseironlossesb)preventeddycurrentc)decreasereluctanceofthecommonmagneticcircuitd)eliminatemagnetichysteresisCorrectAnswer:decreasereluctanceofthecommonmagneticcircuitQuestion119.Inasynchronousmachine,incasetheaxisoffieldfluxisinlinewiththearmaturefluxthen______________

_____________

Options:a)themachineisworkingassynchronousmotorb)themachineisworkingassynchronousgeneratorc)themachineissaidtobefloatingd)themachinewillvibrateviolentlyCorrectAnswer:themachineissaidtobefloatingQuestion120.Whichofthefollowingpairisusedforfrequencyconverter?

,?Options:a)Squirrelcageinductionmotorandsynchronousmotorb)Woundrotorinductionmotorandsynchronousmotorc)woundrotorinductionmotorandsquirrelcageinductionmotord)Anyofthese CorrectAnswer:SquirrelcageinductionmotorandsynchronousmotorQuestion121.Thedirectionofrotationofd.c.motorcanbereversedby_______

______________Options:a)reversingtheconnectionsofbotharmatureandthefieldwindingb)reversingtheconnectionofeitherthearmatureorfieldwindingc)reducingthefieldfluxd)introducingextraresistanceinthearmaturecircuitCorrectAnswer:reversingtheconnectionofeitherthearmatureorfieldwindingQuestion122.Inordertoachievealldayefficiencyinatransformer

:Options:a)Thecopperlossesshouldbelessb)Theoperatingtemperatureshouldbelowc)Theshelltypeconstructionshouldbeusedd)TheironlossesshouldbelessCorrectAnswer:ThecopperlossesshouldbelessQuestion123.Thesurgeimpedancevalueofoverheadlinesis

______________Options:a)50to100ohms50100b)400to600ohms400600c)800to1000ohms8001000d)10to50ohms1050CorrectAnswer:400to600ohms400600Question124.Whatisthebeamwidthbetweennullsofa2mparaboloidreflectorusedat6GHz?

6GHz2m?

Options:a)7degrees7b)3.5degrees3.5c)1.75degrees1.75d)5degrees5CorrectAnswer:3.5degrees3.5Question125.A1mWsignalhavingabandwidthof100MHzistransmittedtoareceiverthroughcablethathas40dBloss.Iftheeffectiveonesidenoisespectraldensityatthereceiveris1020Watt/Hz,thenthesignaltonoiseratioatthereceiveris

100MHz1mW,40dB 101020Watt/HzSNROptions:a)50dB

b)30dB

c)40dB

d)60dBCorrectAnswer:50dBQuestion126.Thepreemphasiscircuitisused

Options:a)Aftermodulationb)priortomodulationc)toincreaseoremphasistheamplitudeoflowfrequencycomponentsofthesignald)Noneofthese CorrectAnswer:priortomodulationQuestion127.MicrowaveMB_Communicationuses_________amplifiertoobtainlargegainoverwidebandwidth

MB____________Options:a)ReflexKlystron b)PiModeMagnetronPic)TravellingwaveTube d)AlloftheseCorrectAnswer:TravellingwaveTube Question128.BoostingofhigheraudiofrequenciesinFMtoimprovenoiseimmunityiscalled

__________Options:a)DeEmphasisb)Preemphasisc)Compressiond)ExpansionCorrectAnswer:PreemphasisQuestion129.InanFMsystem,whentheAFis500HzandtheAFvoltageis2.4V,thedeviationis4.8kHz.IftheAFvoltageisnowincreasedto7.2V,thenewdeviationwillbe

FM,AF500HzAF2.4V,4.8kHzAF7.2V:

Options:a)4.8KHz

b)9.6KHz

c)14.4KHz

d)28.8KHzCorrectAnswer:14.4KHzQuestion130.WhenabroadcastAMtransmitteris50%modulated,itsantennacurrentis12A.Whatwillbethecurrentwhenthemodulationdepthisincreasedto90%?

AM50%1290%?Options:a)13.4A

b)12.9A

c)16.6A

d)21.8ACorrectAnswer:13.4AQuestion131.Whichofthefollowinghastheleastwavelength?

_____________Options:a)Ultravioletb)UHFc)Infraredd)XraysXCorrectAnswer:XraysXQuestion132.Underwhichofthefollowingsituations,fadingwillnotoccur?

?Options:a)thefrequencyofthesignalishighb)Asingleskywaveispresentc)Manyskywavesarrivebydifferentpathd)Noneofthese CorrectAnswer:Noneofthese Question133.Whichofthefollowingfrequencybandsfallundermicrowavefrequency

?Options:a)UHFandSHFb)SHFandEHFc)VLF,LFandMFd)UHF,SHFandEHFCorrectAnswer:UHF,SHFandEHFQuestion134.Oneditisequalto___________

______________Options:a)1.14bits

b)3.32bits

c)1.17bits

d)noneofthese CorrectAnswer:3.32bitsQuestion135.Speechsignalfrequencymayliesbetween

_________

Options:a)015Khzb)15Hzto15KHzc)150KHzd)01MHzCorrectAnswer:15Hzto15KHzQuestion136.Indicatewhichofthefollowingsystemisdigital

,:Options:a)PPM

b)PCM

c)PWM

d)PFMCorrectAnswer:PCMQuestion137.Anidealfiltershouldhave

Options:a)Infiniteattenuationintheattenuationband.b)Infiniteattenuationinthepassbandc)Zeroattenuationintheattenuationband.d)ZeroattenuationinthepassbandCorrectAnswer:ZeroattenuationinthepassbandQuestion138.Alinebecomesdistortionlessif

Options:a)Itisproperlymatchedb)LG=CR

c)LC=GR

d)ItisterminatedintoZoZoCorrectAnswer:LG=CRQuestion139.Anetworkissaidtobereciprocalif

Options:a)Z12=Z21

b)Y12=Y21

c)ADBC=1

d)alloftheseCorrectAnswer:alloftheseQuestion140.Attenuatorsareused

:Options:a)toincreasethesignallevelb)toreducethesignallevelc)tomaintainthesignallevelconstantd)Noneofthese CorrectAnswer:toreducethesignallevel

Question141.Theintrinsicimpedanceoffreespaceis

:Options:a)75

b)37

c)377

d)3670CorrectAnswer:377Question142.Whatisthecharacteristicimpedanceofthetransmissionlineofinductance144H/mandcapacitanceof100F/m

144H/m100F/m ?Options:a)12

b)14

c)1.2

d)120CorrectAnswer:1.2Question143.TheCharacteristicImpedanceofalowpassfilterinattenuationBandis

:Options:a)Complexquantity.b)Realvalue.c)Zerod)Purelyimaginary.:CorrectAnswer:Purelyimaginary.:Question144.LDAPworksonthe________layerofOSIModel

LDAP,OSI__________Options:a)Physicalb)Networkc)DataLinkd)Transport CorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion145.Witheveryincreasein3dBofpowerlevel

3dbOptions:a)Thepowerbecomeshalfb)Powerincreasesbyoneunitc)Powerreducesbyoneunitd)PowerbecomesdoubleCorrectAnswer:PowerbecomesdoubleQuestion146.Theimpactofrainsonmicrowavecommunicationishigherin

Options:a)LowerFrequencyRangeb)MediumFrequencyRangec)NoImpactatall d)HigherFrequencyRangesCorrectAnswer:HigherFrequencyRangesQuestion147.Fortransmissionmatchingoverarangeoffrequencies,itisbesttousea___________

______________Options:a)singlestubofadjustablepositionb)doublestubc)broadbanddirectionalcouplerd)balunCorrectAnswer:doublestubQuestion148.A50wattlightbulbburnsanaverageof10hrsadayforoneweek.Thetotalkilowatthourconsumptionis

5010Options:a)3.5

b)35

c)0.35

d)0.035CorrectAnswer:3.5Question149.A12Vbatterywithaninternalresistance0.5ohmsfeedsaseriescircuitcontaining20ohms,10ohms,andR.FindthevalueofRifthecurrentinthecircuitis0.2A.

0.512V20,10RR0.2AOptions:a)14.5ohms14.5b)15.5ohms15.5c)4.5ohms4.5d)5.5ohms5.5CorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion150.Anammeterhasacurrentrangeof05A,anditsinternalresistanceis0.2.Inordertochangetherangeto025A,weneedtoaddaresistanceof

05A0.2025A________Options:a)0.05inparallelwiththemeter0.05b)0.04inparallelwiththemeter0.04c)1.0inserieswiththemeter1.0d)0.8inserieswiththemeter0.8CorrectAnswer:0.05inparallelwiththemeter0.05Question151.Adeviceusedtodisplayoneormoredigitalsignalssothattheycanbecomparedtoexpectedtimingdiagramsforthesignalsisa

,:

Options:a)DMMDMMb)Spectrumanalyzer c)LogicAnalyzerd)FrequencycounterCorrectAnswer:LogicAnalyzerQuestion152.AnLVDTisusedtomeasuredisplacement.TheLVDTfeedsavolmeterof05Vrangethrougha250gainamplifier.Foradisplacementof0.5mmtheoutputofLVDTis2mV.Thesensitivityofinstrumentis

LVDT250LVDT05V0.5mmLVDT2mV:Options:a)0.1V/mm

b)0.5V/mm

c)1V/mm

d)5V/mmCorrectAnswer:1V/mmQuestion153.Themeasureofmismatchbetweentheloadandthetransmissionlineisknownas__________

______________Options:a)directivityb)(Igain)(1)c)reflectioncoefficientd)standingwaveratioCorrectAnswer:reflectioncoefficientQuestion154.Agalvanometerhas_________

______________Options:a)airfrictiondampingb)fluidfrictiondampingc)eddycurrentdampingd)springcoildampingCorrectAnswer:eddycurrentdampingQuestion155.Thermocouplesare_____

______________Options:a)passivetransducers b)bothactiveandpassivetransducers c)outputtransducers d)activetransducers CorrectAnswer:activetransducers Question156.Dummystrainguagesareusedfor_______________

_______________

Options:a)calibrationofstraingauges b)increasingthesensitivityofbridgeinwhichtheyareincludedc)compensatingfordifferentexpansiond)compensationoftemperaturechangesCorrectAnswer:compensationoftemperaturechangesQuestion157.Ameterconnectedinparallelwithacomponenttomeasure___

_______Options:a)Voltageb)Currentc)Powerd)None CorrectAnswer:VoltageQuestion158.WhentheD.C.Voltmeterisconnectedwithpolaritiesreversed

Options:a)Thepointerdeflectsupscaleb)Thepointerdeflectsdownscalec)Thepointerremainsstationeryd)None CorrectAnswer:ThepointerdeflectsupscaleQuestion159.Voltmetersensitivityisdefinedby

:Options:a)Volt/ohm/b)Volt/ohm2/2c)Ohm/volt/d)Ohm/volt2/2CorrectAnswer:Ohm/volt/Question160.Anoscilloscopeindicates:

:Options:a)Peaktopeakvalueofvoltageb)DCvalueofvoltagec)AveragevalueofaA.C.voltaged)RMSvalueofaA.C.voltageRMSCorrectAnswer:RMSvalueofaA.C.voltageRMSQuestion161.Whichoftheinstrumentisusedfora.c.andd.c.

?

Options:a)movingiron(attractiontype)ammeter( )b)movingiron(repulsiontype)voltmeter()c)permanentmagnettypeammeterd)inductiontypemeterCorrectAnswer:movingiron(attractiontype)ammeter( )Question162.AhighQcoilhasa

Q:Options:a)highbandwidthb)lowpowerfactorc)highlossesd)aflatresponseCorrectAnswer:lowpowerfactorQuestion163.ALagnetworkforcompensationnormallyconsistsof

?Options:a)R,LandCelementsR,LCb)RandLelementsRLc)RandCelementsRCd)RonlyRCorrectAnswer:RandCelementsRCQuestion164.Thepolezeroplotgiveninfig.belowisthatofa

?

Options:a)PIDcontrollerPIDb)PDcontrollerPDc)Integratord)LagleadcompensatingnetworkCorrectAnswer:LagleadcompensatingnetworkQuestion165.TheimpulseresponseofaLTIsystemisaunitstepfunction,thenthecorresponding

LTIOptions:a)1/s

b)s

c)2s

d)0CorrectAnswer:1/sQuestion166.DeterminetherangeofKforstabilityofunityfeedbacksystemwhoseopenlooptransferfunctionisG(s)=K/s(s+1)(s+2)

G(s)=K/s(s+10)K

Options:a)10b)15c)6d)0CorrectAnswer:6Question167.Theunityfeedbackcontrolsystemhasaforwardpathtransferfuntionequalto42.25/s(s+6.5).Theunitstepresponseofthissystemstartingfromrest,willhaveitsmaximumvaluteatatimeequalto

42.25/s(s+6.5),,Options:a)0sec0b)0.56sec0.56c)5.6sec5.6d)infinityCorrectAnswer:infinityQuestion168.Peaktimetp,isthetimerequiredfortheresponsetoreachthe______peakoftheovershoot

_______________tpOptions:a)1st

b)2nd

c)3rd

d)noneofthese CorrectAnswer:1stQuestion169.Whichofthefollowingistheanalogouspairunderforcecurrentanalogy?

,?Options:a)Massinductanceb)Forcecapacitancec)Displacementcharged)ViscousfrictioncoefficientreciprocalofresistanceCorrectAnswer:ViscousfrictioncoefficientreciprocalofresistanceQuestion170.ThenegativerealaxisofNyquistplotcorrespondstothe_____

______________Options:a)anegative180degreephaselineofBodeplot180b)apositive180degreephaselineofBodeplot180c)0dblineBodeplotd)noneofthese CorrectAnswer:anegative180degreephaselineofBodeplot180Question171.Withfeedbacksystem_______________

____________Options:a)thetransientresponsegetsmagnified b)transientresponsedecaysataconstantrate c)thetransientresponsedecaysslowly d)thetransientresponsedecaysmorequickly

CorrectAnswer:thetransientresponsedecaysmorequickly Question172.Aregulatorthatcontainsfourphaselagsatt1sec,t2=0.1sec,t3,t4=0.01sec,isstableifitssteadystategainis__________

t1sec,t2=0.1sec,t3,t4=0.01sec,______________Options:a)10db10b)30db30c)20db20d)noneofthese CorrectAnswer:20db20Question173.Theidealamplifiertakescurrentfromtheinputsourceas

________Options:a)Inmilliampereb)Zeroc)Inampered)InmegaampereCorrectAnswer:ZeroQuestion174.Thesystemresponsecanbetestedwith

____________Options:a)Sinusoidalinputsignalb)Unitimpulseinputsignalc)Rampinputsignald)ExponentiallydecayingsignalCorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion175.Inacriticallydampedsystem,thedampingfactorofthesystemis

,____________Options:a)zerob)lessthanunityc)unityd)greaterthanunityCorrectAnswer:unityQuestion176.TheminimumnumberofMOStranistorsrequiredtomakeadynamicRAMcellis

RAMMOS :Options:a)4

b)3

c)2

d)1CorrectAnswer:1Question177.Thenumberofstatusflagpresentin8085are

8085:

Options:a)5

b)8

c)10

d)16CorrectAnswer:5Question178.TherangeofaddresswheretheInterruptserviceproceduresarestoredis

_______Options:a)00000000FFH

b)00000001FFH

c)00000002FFH

d)00000003FFHCorrectAnswer:00000003FFHQuestion179.FARCALLorFARJUMPistobranchifprogramareaisoutside________segmentin8086

FARCALLFARJUMP8086___________Options:a)4KByte4Kb)16KByte16Kc)32KByte32Kd)64KByte64KCorrectAnswer:64KByte64KQuestion180.Theoutputresistanceofavoltagesourceis4ohm.Itsinternalresistancewillbe

4ohmOptions:a)4ohm

b)2ohm

c)1ohm

d)infiniteCorrectAnswer:4ohmQuestion181.NormallyInternettrafficismeasuredin

Options:a)Voltsb)MbpsMbpsc)Erlangs(Erlangs)d)WattsCorrectAnswer:MbpsMbpsQuestion182.ComputationalcircuitryinaCPUisrefferedtoasthe____________

______________Options:a)ALUb)ProgramCounterc)ROM

d)RAMCorrectAnswer:ALU

Question183.Whichofthefollowinginstructionsarenotusedbythe8080MPU?

8080?Options:a)RIM,STA

b)SIM,STA

c)STA,XCHG

d)RIM,SIMCorrectAnswer:RIM,SIMQuestion184.Decimal15equals____inbinary.

15:Options:a)0111

b)1111

c)1011

d)1101CorrectAnswer:1111Question185.Whichofthefollowingfunctionsisnotperformedbyamicroprocessor?

?Options:a)Controllingtimingofinformationflow.b)Performingthecomputingtasksspecifiedinaprogramc)Communicatingwithallperipheralsusingsystembusd)StoringresultsanddateCorrectAnswer:StoringresultsanddateQuestion186.Thenumberofbytesinaninstructionfor8085canbe

8085___________Options:a)Oneortwob)One,twoorthree,c)Twoonlyd)OneonlyCorrectAnswer:OneonlyQuestion187.Thememoryaddressingcapacityof8086is

8086 _____Options:a)32KB

b)64KB

c)1Megabyte1d)32Megabyte32CorrectAnswer:1Megabyte1Question188.In8086,thephysicaladdressofaninstructioncontains_______bits.

88086 _______

Options:a)10

b)16

c)18

d)20CorrectAnswer:20Question189.WhichofthefollowingcodewillremovealltherowsfromthetableLOCATIONS?

LOCATIONS?Options:a)DROPTABLELOCATIONS

b)DELETETABLELOCATIONS

c)TRUNCATETABLELOCATIONS

d)Noneofthese CorrectAnswer:TRUNCATETABLELOCATIONSQuestion190.WhichprotocoldoesDHCPuseattheTransportlayer?

DHCP ?Options:a)IP

b)TCP

c)UDP

d)ARPCorrectAnswer:UDPQuestion191.TCPportNumberforhttpservicesis

:Options:a)21

b)22

c)80

d)88CorrectAnswer:80Question192.TheCharacteristicequationofTflipflopis

T:Options:a)Q=T'Q+TQ'

b)Q=T'Q'+QT'

c)Q=TQ

d)Q=TQ'CorrectAnswer:Q=T'Q+TQ'Question193.ASCIIstandsfor

ASCII:Options:a)AmericanstandardcodeforinformationInterchange

b)AmericanscientificcodeforinformationInterchange

c)AmericanstandardcodeforintelligentInterchange

d)AmericanscientificcodeforintelligentInterchangeCorrectAnswer:AmericanstandardcodeforinformationInterchangeQuestion194.ThehighestmodulationfrequencytypicallyusedinAMbroadcastis

AM

Options:a)5KHz

b)10KHz

c)15KHz

d)1MHzCorrectAnswer:5KHzQuestion195.InRCinductivereactance,FETissoarrangedthat

RC,FET,Options:a)Xc>R

b)Xcc)Xc=R

d)Xc=10RCorrectAnswer:FullMarksawardedtoallappearedcandidatesQuestion196.WhichofthefollowingoperationsisnotperformedbytheCPUofacomputersystem?

Options:a)Arithmeticoperationb)Providingtimingsignalc)controlinstructionprocessing d)Noneofthese CorrectAnswer:ProvidingtimingsignalQuestion197.Thedatatransferrateofadoubledensityfloppydiscsystemisabout________

_______________Options:a)5Kbits/sec

b)50Kbits/sec

c)500Kbits/sec

d)5000Kbits/secCorrectAnswer:500Kbits/secQuestion198.Thedecimalfraction0.375inbinaryformis____________

0.375_______________Options:a)0.0011

b)0.111

c)0.011

d)0.0111CorrectAnswer:0.011Question199.Hardwareofthecomputeris

:Options:a)physicalcomponentb)programingcomponentc)hardcomponentd)noneofthese CorrectAnswer:physicalcomponent[OR]programingcomponent

Question200._________isalowlevellanguage

__________Options:a)Fortran b)MachineLanguagec)binaryd)PascalCorrectAnswer:MachineLanguage