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Uttar Pradesh Power Corporation Exam Paper 2013 | Infipark.com Assistant Engineer (Electrical) Q.1 Which Heritage monument was restored and reopened in Sep,2013? 1) Humayun Tomb 2) Char Minar 3) Tajmahal 4) Aurangzeb’s Tomb. Q.2 What is the approximate number of young voters of the age of 18 21 years who will participate in the National elections 2014 1) 12 crores 2) 15 crores 3) 22 crores 4) 10 crores Q.3 मानवककालक कस हस मफमरयाज घािथ िथत होती ह ? 1) जा 2) पीठ 3) बा 4) Q.4 For which,the first Canadian women won the Noble Prize for Literature? 1) Short Stories 2) Biography 3) Plays 4) Poetry Q.5 Which woman archer who won the gold in the 2010 Common wealth games ? 1) Bombayla Devi 2) Arati Saha 3) Deepika Kumari 4) Kamaam Malleshwari Q.6 What aspect did the Kothari Commission on Education 1965 place emphasis on? 1) Education for Agriculture and Industry. 2) Higher education for all . 3) Girls Education upto Upper Primary Stage 4) Education only in Mother Tongue Q.7 Who is the Chief Election Commissioner of India at present? 1) V.S.Sampath 2) J.M Lyngdoh 3) S.Y , Quereshi

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  • UttarPradeshPowerCorporationExamPaper2013|Infipark.com

    AssistantEngineer(Electrical)

    Q.1 WhichHeritagemonumentwasrestoredandreopenedinSep,2013?1)HumayunTomb2)CharMinar3)Tajmahal4)AurangzebsTomb.

    Q.2 Whatistheapproximatenumberofyoungvotersoftheageof1821yearswhowillparticipateintheNationalelections20141)12crores2)15crores3)22crores4)10crores

    Q.3 ?

    1)

    2)

    3)

    4)

    Q.4 Forwhich,thefirstCanadianwomenwontheNoblePrizeforLiterature?1)ShortStories2)Biography3)Plays4)Poetry

    Q.5 Whichwomanarcherwhowonthegoldinthe2010Commonwealthgames?1)BombaylaDevi2)AratiSaha3)DeepikaKumari4)KamaamMalleshwari

    Q.6 WhataspectdidtheKothariCommissiononEducation1965placeemphasison?1)EducationforAgricultureandIndustry.2)Highereducationforall.3)GirlsEducationuptoUpperPrimaryStage4)EducationonlyinMotherTongue

    Q.7 WhoistheChiefElectionCommissionerofIndiaatpresent?1)V.S.Sampath2)J.MLyngdoh3)S.Y,Quereshi

  • 4)T.N.Seshan

    Q.8 InwhichtwoStateswastheSarvaShikhaAbhiyanfirstlaunched?1)RajasthanandUttarPradesh.2)GujaratandMadhyaPradesh3)UttarPradeshandMadhyaPradesh4)BiharandRajasthan

    Q.9 Towhichplanet,therehavebeentillnowabout40missionsandnow,newinformationwillcomeupfromIndianeffortinyear2013,?1)Mars2)Venus3)Uranus4)Moon

    Q.10 WhichPresidentoftheUnitedStatesofAmericawaselected3times?1)FranklinDRoosevelt2)HerbertHoover3)ThomasJefferson4)AndrewJackson

    Q.11 WhichamendmentoftheConstitutionsupportstheconstitutionalrighttoeducation.1)44thamendmentof19792)93rdamendmentof20063)17thamendmentof19644)86thamendmentof2002

    Q.12 WhichSriLankantownhasIndiahasrecentlyopenedaconsulatein?1)Jaffna2)Galle3)Negombo4)Trincomalee

    Q.13 WhichmineralofhasbeenbannedforminingandexportinGoafrom2013?1)Bauxite2)Uranium.3)Pyrite4)IronOre

    Q.14 WhichstatehasbeenthefirsttoachievefullsanitationcoverageandcalledaNirmalstate?1)Tamilnadu2)Meghalaya3)Sikkim4)Maharashtra

    Q.15 WhatwascommonbetweentheearlycivilisationsofIndia,China,MesopotamiaandEgypt?1)Manysportsandcommongameswereorganised.2)Welldevelopedscriptandlanguageusingpictographs3)RiverValleybasedcitiesandagriculturedependent4)Dependentontradeandinhabitedbycitydwellers.

    Q.16 WhichbirdmigratesfromAfricatoGujaratandRajasthan

  • 1)Flamingo2)Cranes.3)Ostrich4)PaintedStork

    Q.17 ThePresidentofIndiaiselectedbythemembersofanelectoralcollegewhichdoesn'tincludetheelectedmembersof1)StateAssemblies2)RajyaSabha3)StateLegislativeCouncils4)LokSabha

    Q.18 Whichcontinentalplateismovingapartattherateof15cmsayear?1)IndianandEurasianPlate2)MidAtlanticRidge.3)NazcaandPacificplates4)PacificandAustralianPlate

    Q.19 Howwereigneousrocksformed?1)Coolingoflavafromeruptions.2)Heatingandcoolingofmagma3)FoldingofrocksintheEarthsinterior.4)Earthmovementswhichledtofaulting.

    Q.20 WhichmineralhasbeenbannedforminingandexportinTamilnadufrom2013?1)Ilmeniteandgarnet2)Bauxite3)IronOre4)Uranium.

    Q.1 Whichismissinginthefollowingsequenceofletterclusters?

    bdfh,cfil,eimq,?,lrxd1)glqv2)hlpt3)hmrv4)hmrw

    Q.2 Howmany5sarethereinthefollowingnumbersequenceeachofwhichisimmediatelyfollowedbyanoddnumber,butnotimmediatelyprecededbyanevennumber?

    4582575835965375195547531)32)63)44)5

    Q.3 Whenthestudentsinaclassareranked,Arvindis7thfromthetopandAnandis9thfromthebottom.SunilisexactlyinthemiddleofArvindandAnand.PrakshandSunilhave5boysbetweenthem,whileArvindandPrakshhave3.Howmanystudentsarethereintheclass?1)362)35

  • 3)344)33

    Comprehension:Acubeispaintedredontwoadjacentfacesandononeoppositefaceblueontwooppositefacesandgreenontheremainingface.Itisthencutinto64smallercubes.Answerthefollowingquestions.

    Q.4SubQuestionNo:1

    Howmanysmallercubeswillhaveonly2facespainted,onewithredandtheotherwithblue?1)162)123)84)24

    Q.5SubQuestionNo:2

    Howmanysmallercubeswillhaveonlyoneredcoloredface(theothermayormaynotbepainted)?1)402)163)324)12

    Q.6 IfAdenotesx,Bdenotes+,Cdenotes,andDdenotes,then

    15D(7C2)B5A(11C6)=?1)402)383)284)29

    Q.7 Choosethemissingnumberfromamongthealternatives.

    1)72)33)114)5

    Q.8 Among5items,BweighstwiceasmuchasA.DweighshalfasmuchasC.AweighsthreeandhalftimesasmuchasD.CweighshalfasmuchasE.

    Whichofthefollowingrepresentstheascendingorderofweightsoftheitems?1)DCAEB2)DCEAB3)DCABE4)CDAEB

    Q.9 Thefirsttwoletterclustersontheleftofthesign::arerelatedinacertainway.Thesamerelationshipholdsforthesecondpairontherightofthesign::ofwhichoneismissing.Choosethemissingonefromamongthealternatives.

    BDEG:YVTQ::FIKN:?

  • 1)UQNJ2)VROK3)URPM4)UQMI

    Q.10 Howmanytrianglesarethereinthefollowingfigure?

    1)222)243)204)18

    Q.11 IfeveryalternateletterinthewordORDERLYstartingfromthefirstletterisreplacedbythenextletterintheEnglishalphabetandeachoftheremaininglettersisreplacedbythepreviousletterandthenewlettersarearrangedalphabetically,whichwillbethemiddlemostletter?1)D2)K3)P4)Q

    Q.12 Whichofthefollowinggroupsoflettersistheoddoneout?1)CXVE2)EVRI3)BYUG4)GTQJ

    Q.13 Twofacesofacubearegivenbelow.Whichnumberwillbeopposite5?

    1)22)63)34)1

    Q.14 IfAxBmeansAisthehusbandofBA+BmeansAisthemotherofBanABmeansAisthebrotherofB,whichofthefollowingmeansPisthepaternaluncleofT?1)P+QxR+T2)PQxR+T3)PQ+RxT4)PxQ+RT

    Q.15 ApersonisstandingonaplatformfacingSouth.Heturned1600clockwiseandthen850

    anticlockwise.Finally,heturned1500clockwise.Whichdirectionishefacingnow?1)NorthWest2)SouthEast3)NorthEast4)North

  • Q.16 If4personstake4daystocomplete4timesofaworkbyworking4hoursaday,howmanydays,would2personstaketocomplete2timesofthesameworkbyworking2hoursaday?1)42)83)164)2

    Q.17 ThreestatementsarefollowedbytwoconclusionsnumberedIandII.Assumingthestatementstobetrue,eveniftheyareatvariancewithcommonlyknownfacts,decidewhichoftheconclusionslogicallyfollow?

    Statements:(1)Allmammalsarevertebrates(2)Somevertebratesareanimals(3)Someanimalsarehumanbeings.

    Conclusions:I.SomevertebratesarehumanbeingsII.Somehumanbeingsareanimals1)OnlyconclusionIfollows2)BothconclusionsIandIIfollow3)OnlyconclusionIIfollows4)EitherconclusionIorIIfollows

    Q.18 Ifthepositionofthefirstandthethirddigitsareinterchangedineachofthefollowingnumbers,whichofthefollowingwillbethedifferencebetweenthehighestandthelowestnumbersafterrearrangement?

    7594,3985,6427,9215,85371)62352)81973)73974)8279

    Q.19 Whichistheoddnumberpair?1)60482)65523)85684)2015

    Q.20 Oneofthenumbersinthefollowingnumberseriesiswrong.Whichisthewrongnumber?

    5,11,23,49,95,1911)232)493)1914)95

    Comprehension:II,III,

  • ?Q.1SubQuestionNo:1

    1)

    2)

    3)

    4)

    Q.2SubQuestionNo:2

    1)

    2)

    3)

    4)

    Q.3SubQuestionNo:3

    1)

    2)

    3)

    4)

    Q.4 '?

    1)

    2)

    3)

    4)

    Q.5 ?

    1)

    2)

    3)

    4)

    Q.6 '?

    1)

    2)

    3)

    4)

  • Q.7 '?

    1)

    2)

    3)

    4)

    Q.8 ?

    1)

    2)

    3)

    4)

    Q.9 '?

    1)

    2)

    3)

    4)

    Q.10 ?

    1)

    2)

    3)

    4)

    Q.1 Staticsystemarealsocalledas1)Analogsystem2)Memorysystem3)Digitalsystem4)Memorylesssystem

    Q.2 IfLaplacetransformofx1(t)andx2(t)areX1(s)andX2(s)respectively.ThenStatetimeconvolutionpropertyofLaplacetransform,L[x1(t)*x2(t)]is1)X1(s)X2(s)2)2X1(s)X2(s)

    3)X12(s)X22(s)4)X1(s)X2(s)

    Q.3 Thecapacitanceappearingacrossareversebasedsemiconductorjunction1)Increaseswithincreaseinbiasvoltage2)Isindependentofbiasvoltage3)Dependsuponbreakdown4)Decreaseswithincreaseinbiasvoltage

  • Q.4 Reactanceofathreereactorsratedat7500kVA,3300V,having7.5%reactanceis1)2ohm2)0.219ohm3)0.209ohm4)0.109ohm

    Q.5 Choosetheincorrectstatement.1)AbranchformedbytheseriesconnectionofanyresistorRandashortcircuithasthecharacteristicofresistorR.2)AbranchformedbytheparallelconnectionofanyresistorRandopencircuithasthecharacteristicofanopencircuit.3)AbranchformedbytheseriesconnectionofanyresistorRandanopencircuithasthecharacteristicofanopencircuit.4)AbranchformedbytheparallelconnectionofanyresistorRandashortcircuithasthecharacteristicofashortcircuit.

    Q.6 Currentthroughacapacitorisexpressedas__________.1)(d/A)dv/dt2)(Ad/)dv/dt3)(/Ad)dv/dt4)(A/d)dv/dt

    Q.7 Fromthepolezeroplotsifthepolesarelyingonleftsideofjaxisthensystemis1)unstable2)causal3)Stable4)critically

    Q.8 Astepdownchopperisfedbyadcbusof100V,tofeedacoilofresistance5andinductance200mH.AfreewheelingdiodeisusedtofacilitateZCSofthepowerswitch.Switchisbeingoperatedat1kHzwithadutyratioof0.5.Peaktopeakcurrentrippleinthecoilwillbe1)0.25A2)0.125A3)0.5A4)10A

    Q.9 Atwophaseservomotorhas1)Woundrotor2)Cagerotor3)Woundandcagerotor4)Rotorsimilartothatindcmotor

    Q.10 Onekilowatthourofelectricalenergyisthesameas1)36x105joules2)36x105watt3)36x105B.T.U.4)36x105ergs

    Q.11 ThepurposeofsynchronizingcontrolinaCROisto1)Adjusttheamplitudeofdisplay

  • 2)Lockthedisplayofsignal3)Focusthespotonthescreen4)Controltheintensityofthespot

    Q.12 TheopenloopDCgainoftheunityfeedbacksystemwithcloselooptransferfunction

    is 1)42)4/133)4/94)13

    Q.13 Whichmethodcanbeusedforabsolutemeasurementofresistance?1)Releighmethod2)Lortentzmethod3)Ohmslawmethod4)Wheatstonebridgemethod

    Q.14 ToeliminatethirdharmonicinasinglepulsemodulatedPWMinverter,pulsewidthshouldbeof1)1202)1503)604)30

    Q.15 Thereisazerosequencecurrentifthetransformerisconnectedby1)StarStar2)StarDelta3)DeltaStar4)DeltaStar,neutralgrounded

    Q.16 Acircuithasavoltagesourceof15voltsandthree15resistorsconnectedinparallelacrossthesource.WhatNortonresistance(RN)wouldaload"see"whenconnectedtothiscircuit?1)452)03)154)5

    Q.17 Forlowvaluesofdrainsourcevoltages,theJFETactsas1)BJT2)Resistor3)Currentsource4)Voltagesource

    Q.18 Thefollowingtypeofdcgeneratorismostsuitableasbooster1)Shuntgenerator2)Separatelyexcitedgenerator3)Seriesgenerator4)Compoundgenerator

    Q.19 Kirchhoffsvoltagelawappliestocircuitswith

  • 1)nonlinearelementsonly2)linear,nonlinear,activeandpassiveelements3)linear,nonlinear,active,passive,timevaryingaswellsastimeinvariantelements4)linearelementsonly

    Q.20 Thestatevariabledescriptionis

    Thestatetransitionmatrixofthesystemwillbe

    1)

    2)

    3)

    4)

    Q.21 Twotransistoranalogyisusedtoexplaintheoperationprincipleof1)MOSFET2)IGBT3)Thyristor4)BJT

    Q.22 Theoperatorarotatesthevectorintheanticlockwisedirectionby1)90degree2)120degreebutclockwise3)180degree4)120degree

    Q.23 Thevoltageatfarthestloadpointfromsupplyatoneendwillbetheleastalwaysfor1)interconnectedsystem2)Networksystem3)Ringsystem4)Radialsystem

    Q.24 Intermsofcurrentdensity,BiotSavart'sLawisexpressedas____________(Note:Jandararevectorquantities.)1)(Jxar).dv/4r

    2)(Jxar).dv/2r2

    3)(Jxar).dv/4r2

    4)(Jxar).dv/2r

    Q.25 Potentiometersensitivitycanbeincreasedby1)Decreasingthecurrentinpotentiometer2)Decreasingthelengthofpotentiometerwire3)Usingregulatedsupplyinplaceofstandardcell.

  • 4)Increasingthelengthofpotentiometerwire

    Q.26 Theenergysignalisobtainedby

    1)

    2)

    3)

    4)

    Q.27 Alinewhichconnectsadistributortothecustomer'sloadpointiscalledas1)line2)Distributor3)Feeder4)Servicemain

    Q.28 Laplacetransformofrectangularpulseshowninfigis

    1)

    2)

    3)

    4)

    Q.29 Intwowattmetermethodifpowerfactoris0.5,thenoneofthewattmeterwillread1)Zero2)W/23)W/34)W/2

    Q.30 Skineffectoccurswhenaconductorcarriescurrentat_____frequencies.1)low2)verylow3)high

  • 4)medium

    Q.31 TheFouriertransformofanunitstepfunctionisgivenas

    1)2)Rampfunction

    3)

    4)

    Q.32 Thecommoncollectorbiasandemitterbiasareexampleof1)Voltageseriesfeedbackandcurrentseriesfeedbackrespectively2)Currentseriesfeedbackandcurrentshuntfeedbackrespectively3)Voltageseriesfeedback4)Voltageseriesfeedbackandvoltageshuntfeedback,respectively

    Q.33 Piezoelectrictransducersare1)Passivetransducers2)Secondarytransducers3)Activetransducers4)Primarytransducer

    Q.34 Thedailyloadpatternonaplantisasfollows:50MWfor20hours100MWfor4hours.Whatistheloadfactor?1)0.682)58.33)684)0.583

    Q.35 TheFouriertransformoftheexponentialsignalejw0tis1)aseriesofimpulses.2)animpulse3)aconstant4)arectangulargate

    Q.36 Theimpulseresponseofasystemis5.Itsstepresponseisequalto1)0.5(11e10t)2)10(1e10t)3)5(1e10t)4)0.55e10t

    Q.37 Thevoltageacrossacomponentismeasuredas80Vr.m.s.andthecurrentthroughitis4Ar.m.s.Ifthecurrentleadsthevoltageby200whatistheapparentpowerinthecomponent?1)109VA2)301VA3)320VA4)116VA

    Q.38 Ausefulpropertyoftheunitimpulseisthat

  • 1)

    2)

    3)

    4)

    Q.39 InbodeplotoftheunityfeedbackcontrolsystemthevalueofphaseofG(j)atthegaincrossoverfrequencyis1250,thephasemarginofthesystemis1)552)1253)1254)55

    Q.40 Electromechanicalenergyconversiondevicesare1)Grossmotiondevices2)Staticdevices3)Grossmotionandincrementaldevices4)Incrementaldevices

    Q.41 Laplacetransformofthefunctionetsin5tis

    1)

    2)

    3)

    4)

    Q.42 Introductionofhysteresisinacomparatormakesit1)Pulsegenerator2)Asquarewaveformgenerator3)Immunetofalsetriggeringcausedbynoisyinputsignal4)Pronetofalsetriggeringcausedbynoisyinputsignal

    Q.43 AnRCdifferentiatorcircuitwithalower3dBcutofffrequencyof3.5KHzwillrespondtoastepinputwitharisetimeof1)Practicallynilvalue2)100ms3)10s4)100s

    Q.44 OneofthereasonsofusingBundleconductorisfor1)transposingthelines2)bothmoreinductanceeffectandlesscoronaeffect3)moreinductanceeffect

  • 4)lesscoronaeffect

    Q.45 InhalfwaveSCR,powercontrolcircuit,ifthefiringangleis300,thenforonecompletecycleofoperation,theloadgetspowerfor1)1500

    2)600

    3)300

    4)3330

    Q.46 Thepurposeofaparallelcircuitresonanceistomagnify1)frequency2)voltage3)current4)power

    Q.47 Inductionrelaysareusedwithquantities.1)d.c.2)Bothacandd.c.3)a.c.4)HVDC

    Q.48 Theopenlooptransferfunctionofunityfeedbackcontrolsystemisgivenby

    IfthegainKisincreasedtoinfinitythenthedampingratiowilltendstobecome1)12)1/3)Infinite4)0

    Q.49 InducedCurrentactstoproduceanopposingfluxaccordingtowhichofthefollowinglaws:1)BiotSavartslaw2)Lenzslaw3)Ampereslaw4)Faradayslaw

    Q.50 Atwostageamplifiercomposedofanactivehighpassfilterandanactivelowpassfilterforms:1)anotchfilter2)anactivebandpassfilter3)anactivebandstopfilter4)ahighgainamplifierwithnonetfiltration

    Q.51 TransferfunctionisdefinedasLaplacetransformoftheoutputtotheLaplacetransformofinputwith1)initialconditiont=02)Initialconditiont=3)initialconditiont0

    Q.52 Asinglephasehalfwaveconverterwithfreewheelingdiodeisdrivingaseparatelyexciteddcmotorat900rpmandisachievedwith60firingangle.Ifthesamemotorisfedthrough

  • singlephasesemiconverterwithfiringangle60,motorwillrunataspeed1)1800rpm2)1500rpm3)1200rpm4)900rpm

    Q.53 Inanytransformer,ifPibetheironlossandPcubethecopperlossonfullload,whichofthefollowingconditionhastobesatisfiedtoobtainmaximumefficiencyat.1)Pcu=9/16Pi2)Pcu=Pi3)Pcu=4/3Pi4)Pcu=16/9Pi

    Q.54 Thep.f.ofatransformerhavingloadispoordueto1)Lowprimarywindingresistance2)Opencircuitedsecondary3)noloadcurrent4)Magnetizingreactanceofthetransformer

    Q.55 IncomparisonwithpowerMOSFET,BJTshas1)higherswitchinglossesbutlowerconductionloss2)higherswitchinglossesandhigherconductionloss3)lowerswitchinglossesbuthigherconductionloss4)lowerswitchinglossesandlowerconductionloss

    Q.56 Thecontinuoustimesystemdescribedbyis1)noncausal,nonlinearandtimeinvariant2)Noncausal,linearandtimeinvariant3)Causal,nonlinearandtimevarying4)Causal,linearandtimevarying

    Q.57 Positiveandnegativesequencenetworkfortransmissionlineis1)notsame2)same3)Negativeandzerosequencenetworksaresame4)Positiveandzerosequencenetworksaresame

    Q.58 Thedeepbarrotorondoublecagerotorofaninductionmotorareused1)Toimproveefficiency2)Toreducerotorcoreloss3)Toincreasepullouttorque4)Toincreasestartingtorque

    Q.59 Iftheimpulseresponseisdefinedas[h(t)=1,for0tTsotherwiseitiszero],thenitis1)Quantizer2)Zeroorderholdcircuit3)Sampler4)SecondorderHoldcircuit

    Q.60 Piezometerisusedtomeasure1)Pressureinpipesandchannel

  • 2)Pressuredifferencebetweentwopoints3)Veryhighpressure4)Verylowpressure

    Q.61 ElectromagneticWavesareusedin__________.1)RadarOnly2)Radar3)Radio4)TV

    Q.62 Adiodewhichistobeusedinachopperhasswitchingspecificationsasdi/dt=20A/sandreverserecoverytimetrr=5s.Expectedpeakreversecurrentis1)141.422)100A3)70.71A4)44.72A

    Q.63 Whichinstrumentisnotaffectedbystraymagneticfields?1)Hotwiretype2)Movingironrepulsiontype3)Movingcoiltype4)Movingironattractiontype

    Q.64 Inaninvertingsummercircuitusingopamp,DCvoltagesof+1V,2Vand+2Vare,respectivelyappliedtotheinputthrough10k,20kand50kresistors.Itthefeedbackresistancewere50k,theoutputvoltagewouldthenbe1)+2V2)+3V3)2V4)3V

    Q.65 Thevoltagegainofanamplifierdecreasesat20dB/decadeabove100kHz.Ifthemidbandfrequencygainis80dB,whatisthevalueofvoltagegainat2MHz?1)52dB2)54dB3)64dB4)60dB

    Q.66 Anunderexcitedsynchronousmotorbehavesas.1)Aresister2)Aninductor3)Acapacitor4)aandb

    Q.67 DeterminethePlugSettingMultiplier(P.S.M)ofa5ampereovercurrentrelayhavingacurrentsettingof125%connectedtosupplycircuitthrougha400/5currenttransformerwhenthecircuitcarriesafaultcurrentof4000amp.1)82)63)74)10

  • Q.68 Fortheshiftingifx(Z)=Z{x(n)}andinitialconditionforx(0)arezerothetimeshiftingis1)Z{x(nm)}=ZnX(z)2)Z{x(nm)}=ZmX(z)3)Z{x(nm)}=ZmX(z)4)Z{x(nm)}=ZnX(z)

    Q.69 Ifasinusoidalwavehasfrequencyof50Hzwith30Ar.m.s.currentwhichofthefollowingequationrepresentsthiswave?1)42.42sin314t2)30sin50t3)84.84sin25t4)60sin25t

    Q.70 Athreephasealternatorwitharatingof10MVA,33kVhasitsbaseresistanceof15ohm/phase.Determinebaseimpedance.ChoosebasevoltageandbaseMVAequaltothesamegivenforalternatorrating.1)163ohm2)1633ohm3)107ohm4)108.9ohm

    Q.71 A20bitaddressbussupports1)20,000memoryaddresses2)10,48,576memoryaddresses3)20,97,152memoryaddresses4)1,00,000memoryaddresses

    Q.72 11.Athreephase,10MVA,11kVgeneratorhas10%subtransientreactance.Athreephaseshortoccursatitsterminal.Thefaultcurrentwillbe.1)6249kA2)6249A3)5200A4)5249A

    Q.73 Theelectricalentityinductancecanbecomparedtothemechanicalentity1)Energy2)Torque3)Impulse4)inertia

    Q.74 Inasinglephasefullconverter,ifandarefiringandextinctionanglesrespectivelythentheloadcurrentis1)discontinuousif()=2)discontinuousif()>3)discontinuousif()

  • 3)V1constant4)V1*fconstant

    Q.76 TheprincipleofoperationofaVMOSdeviceisasimilartothatof1)JunctionFET2)Insulatedgatebipolartransistor3)EnhancementMOSFET4)DepletionMOSFET

    Q.77 Twoammetershavingfullscalereadingof1mAand10mAareconnectedinparallel.Ifthereadingofthetwoammetersare0.5mAand2.5mArespectively.Ratiooftheinternalresistanceofammetersis1)10:12)1:103)5:14)1:5

    Q.78 PWMswitchingschemesusedinsinglephaseinverter1)reducesthetotalharmonicdistortionwithmodestfiltering2)minimisestheloadonthedcside3)increasesthelifeofthebatteries4)Reducesloworderharmonicsandincreaseshighorderharmonics

    Q.79 Innerfilamentreactanceishigherthanouterfilamentreactanceofaconductorwhen1)trueforbothACandDC2)HVDCcurrentflows3)ACcurrentflows4)DCcurrentflows

    Q.80 Whichofthefollowingsignaliscausal1)(1/2)nu(n+3)2)u(n+2)u(n2)3)sintu(t)4)e2tu(t2)

    Q.81 anoutputpulsewidthof400s.Ifitwerefedwith11triggerpulseswithsuccessivetriggerpulsesseparatedby10s,theoutputpulsewidthwouldbe1)400s2)100s3)200s4)500s

    Q.82 Asinglephasesemiconverterisoperatingincontinuousconductionmode.Averagevalueoftheoutputvoltageis

    1)

    2)

  • 3)

    4)

    Q.83 Howarethecapacitorandresistorarrangedwithinatypicalsinglepolehighpasscircuit?1)Thecapacitorisinseriesandtheresistorisinparallelwiththeinput.2)Thecapacitorandresistorarebothinserieswiththeinput.3)Theresistorisinseriesandthecapacitorisinparallelwiththeinput4)Thecapacitorandresistorarebothinparallelwiththeinput.

    Q.84 Swingbuswouldgenerallybeabusinanetworkwhichisa1)Voltagecontrolledbus2)PQbus3)PVbus4)Anybus

    Q.85 InanautotransformerthevoltageratioisV1/V2whereV1>V2.thefractionofpowertransferredinductivelyis1)V2/V12)(V1V2)/V13)(V1V2)/(V1+V2)4)V1/(V1+V2)

    Q.86 Theacarmaturewindingofanalternatoroperatesat.thefieldwindingvoltage1)Thesamevoltageas2)Muchlesservoltagethan3)Muchhighervoltagethan4)Halfthevoltageof

    Q.87 Asteppermotoris1)atwophasemotor2)dcmotor3)amultiphasemotor4)asinglephaseacmotor

    Q.88 Avoltagesourceof100voltsisconnectedinserieswiththreeresistorsR1=10,R2=10,R3=20.AloadisplacedinparallelwithR3.DeterminetheTheveninvoltage(VTH)theloadwould"see."1)25Volts2)50Volts3)10Volts4)100Volts

    Q.89 Twosequencesx1(n)andx2(n)arerelatedbyx2(n)=x1(n).Inthezdomain,theirROCsare1)Same2)Reciprocalofeachother3)Negativeofeachother

  • 4)Complementsofeachother

    Q.90 AdeltaconnectedinductionmotoristobeoperatedinV/fcontrolisfedbyathreephasevoltagesourceinverter.Duringthestartthisinductionmotordriverequires1)autotransformer2)deltastarstarter3)stardeltastarter4)DOLstarter

    Q.91 Thestageofpipelineoperationinwhichinstructionsareretrievedfromthememoryiscalled1)Accumulate2)Fetch3)Execute4)Decode

    Q.92 TheapproximateGMandPMforunitfeedbacksystemwithlooptransmittancee0.1s/sarerespectively1),0

    2)0,

    3)24db,840

    4)

    Q.93 Theaccuracyofa0100mVvoltmeteris+5%.Afullscalereadingof100mVmaybeduetoavoltageof1)110mVor90mV2)90mV3)100mV4)105mVor95mV

    Q.94 NyquistplotofthelooptransferfunctionG(j)H(j)ofasystemenclosesthe(1,j0)point.Thegainmarginofthesystemis1)Graterthenzero2)Infinity3)Zero4)Lessthenzero

    Q.95 Thepowerismeasuredintermsofdeciblesincaseof1)electronicequipment2)transformers3)currenttransformers4)autotransformers

    Q.96 InAC.circuits,laminatedironisinvariablyusedinorderto1)reduceeddycurrentloss2)reducecircuitpermeability3)makeassemblycheapandeasier4)increaseheatradiation

    Q.97 Whichoneofthefollowingstatementiscorrect?Aplantiscontrolledbyproporsanalcontroller.Ifatimedelayelementisintroduceinloop,its1)Phasemargindecreases

  • 2)Phasemarginremainthesame3)Gainmarginincreases4)Phasemarginincreases

    Q.98 InthesignalflowgraphgivenblowthegainC/Rwillbe

    1)44/232)24/233)11/94)22/15

    Q.99 thesystemrepresentedbytransferfunction

    has1)4poleinthelefthalfofthesplane2)3poleinthelefthalfofthesplane3)3poleintherighthalfofthesplane4)2poleintherighthalfofthesplane

    Q.100 InaYYsource/loadconfiguration,the1)phasecurrentandthelinecurrentareinphase,andbothare120outofphasewiththeloadcurrent2)phasecurrent,thelinecurrent,andtheloadcurrentare120outofphase3)linecurrentandtheloadcurrentareinphase,andbothareoutofphasewiththephasecurrent4)phasecurrent,thelinecurrent,andtheloadcurrentareallequalineachphase

    Q.101 AccordingtoMaxwellsequation,whichofthefollowingiscorrect?(Note:Disavectorquantity.)1).D=v2)xD=v3).D=s4)xD=s

    Q.102 Lineintegralofanelectricfieldaroundaclosedpathis1)Infinity2)Zero3)somefinitevalue4)Unity

    Q.103 Whichofthefollowingamplifierclasssuffersmainlyfromtheproblemofcrossoverdistortion?1)ClassA2)ClassC3)ClassB

  • 4)ClassAB

    Q.104 Considerthefollowingstatements

    i.Dy1andyd11transformercanoperateinparallelii.Yd1andYd11transformercanoperateinparalleliii.Yd1andDy1transformercanoperateinparalleliv.Yd1andYz1transformercanoperateinparallel

    Usethecodebelowtoindicatecorrectstatement1)iionly2)iandivonly3)iiandiiionly4)iiiandivonly

    Q.105 Theopenlooptransferfunctionofunitynegativefeedbacksystemisgivenby

    fork>6thestabilitycriteriaoftheopenloopconfigurationandthecloseloopconfigurationofthesystemarerepresentedby1)unstable,unstable2)Stable,stable3)Stable,unstable4)unstable,stable

    Q.106 Theelectricstressintheundergroundcableis1)Zeroattheconductoraswellasonthesheath2)Maximumattheconductorandminimumatthesheath3)Sameasconductorandsheath4)Minimumattheconductorandmaximumatthesheath

    Q.107 ThetransconductancecurveofaJFETis1)Linear2)Hyperbolic3)Sinusoidal4)Parabolic

    Q.108 A220Vsinglephasemeterhasaconstantloadcurrentof5Apassingthroughitfor2Hr,atunitypowerfactor.Ifthemeterdiscmakes1056revolutionsduringthisperiod,whatisthemeterconstantinrevolution/kWh?1)2402)4803)3604)120

    Q.109 Thefollowingsignalisexpressedas

  • 1)tu(t)+(t)12)tu(t)+u(t1)3)tu(t)u(t1)4)tu(t)(t1)u(t1)

    Q.110 Forsinusoidalpulsewidthmodulationofaswitch,sinusoidalreferenceismodulatedwithatriangularhighfrequencycarriersignal.Ifzeroofthereferencesignalcoincideswiththezero/peakofthecarrierwave,thenthenumberofpulsesgeneratedineachhalfcycleare1)m/(m1)2)(m1)/m3)(m1)/(m1)4)1

    Q.111 Transferfunctionofaphaseleadcompensatorisgivenby

    wherea>1andT>0.Themaximumphaseshiftprovidedbysuchcompensatoris

    1)

    2)

    3)

    4)

    Q.112 Theunitimpulseresponseofalineartimeinvariantsystemistheunitstepfunctionu(t).Fort>0,theresponseofthesystemtoanexcitation,eatu(t)a>0,willbe1)(1eat)2)(1eat)/a3)a(1eat)4)aeat

    Q.113 Astringofseriesconnectedthyristorsistobeusedforanapplicationof6kVand1000Awithderatingfactor0.2.Iftheavailablethyristorsareofrating1000Vand200A,thenwhatshouldbethenumberofseriesandparallelconnectedthyristors1)7,8

  • 2)7,63)8,74)8,6

    Q.114 Mostdevicesareinterfacedtoabuswith1)Tristatedrivers2)pnpTransistors3)Resistors4)Totempoleoutputs

    Q.115 Shuntreactorsareneeded1)toboostreceivingendvoltageunderlightloadcondition2)tobringdownreceivingendvoltageatlightloads3)tobringdownreceivingendvoltageunderheavyloads4)toboostreceivingendvoltageunderheavyloads

    Q.116 DCmotorshouldbestoppedbyopeningthelineswitchandnotbyforcingthestarterhandletofirststudofstartingresistance1)Heavysparkingatthemiddleofresistance2)Heavysparkingoccursatthebrushes3)Heavysparkingoccursatthefirststudofstartingresistance4)BoththeHeavysparkingoccursatthefirststudofstartingresistanceHeavysparkingoccursatthebrushes

    Q.117 Anidealvoltagesourcehas1)terminalvoltageinproportiontocurrent2)zerointernalresistance3)opencircuitvoltageequaltothevoltageonfullload4)terminalvoltageinproportiontoload

    Q.118 Ferrantieffectiscausedfor1)Linecapacitance2)Linereactance3)Lineconductance4)Lineresistance

    Q.119 InacapacitorstartmotorifC1isthecapacitancerequiredforbeststartingtorqueandC2isthecapacitancerequiredforbestrunningcharacteristicthen1)C1isequaltoC22)C1ismuchsmallerthanC23)C1ismuchlargerthanC24)C1approximatelyequaltoC2

    Q.120 TheinertiaconstantHfora50Hz,100MVAhydroelectricgeneratoris4.0MJ/MVA.Howmuchkineticenergyisstoredintherotoratsynchronousspeed?1)82)23)254)400

    Q.121 Inzbusbuildingalgorithm,anewbusisaddedtothepartialnetworkof'm'busandtheresultantbusimpedancematrixisofdimension

  • 1)(m1)(m1)2)both(m1)(m1)and(m1)(m1)3)(m+1)(m+1)4)(m+1)(m1)

    Q.122 TherearetwosemiconductordiodesAandB.Theirratingsare5.6Vand2V,respectively,then1)Bothofthemareavalanchediodes2)Aisavalanche,Biszener3)Bothofthemarezenerdiodes4)Aiszener,Bisavalanche

    Q.123 Theregionofconvergenceoftheztransformofthesignal2nu(n)3nu(n1)1)isz>12)isz

  • appliedtotheverticaldeflectingplates,thebrightspotmoves1cmawayfromthecentre.Ifwiththesamesetting,a30voltacisappliedtotheverticaldeflectingplate,thenthepictureobservedonthescreenwouldbe1)Averticallineapproximately3cmlong2)Twospots2cmverticallyaboveeachother3)Aspotapproximately3cmawayfromthecentre4)Averticalline2cmlong

    Q.129 A10kmlosslesslinehasareactanceof0.3ohm/km.TheABCDconstantsare1)A=1,B=j0.3,C=0,andD=12)A=1,B=0.3,C=0.3andD=13)A=1,B=0.3,C=0,andD=14)A=1,B=j3,C=0,andD=1

    Q.130 Anelectriccarwithdcmotordriveisrunningataspeedof100km/hour.Driverofthecarreducesthepressureontheacceleratortoreducethespeedofthecarto80km/hour.Thisisacaseof1)regenerativebraking2)dynamicbraking3)reversemotoring4)countercurrentbraking

    Q.131 Thefaultsareduetoopencircuit1)Symmetrical2)Series3)LG4)Shunt

    Q.132 Themostaccuratetestforfrequencyresponserequires:1)afrequencygenerator2)amultimeter3)aspectrumanalyzer4)afilter

    Q.133 Theunitimpulseresponseofalineartimeinvariantsecondordercontrolsystemg(t)=10e8tsin6t(t).Thenaturalfrequencyanddampingfactorofthesystemarerespectively1)6rad/sand0.82)10rad/sand0.63)6rad/sand0.64)10rad/sand0.8

    Q.134 let

    wherebisunknownconstant.Thesystemis1)unobservableforallthenonzerovaluesofb2)Observableforallthenonzerovaluesofb3)Observableforallthevalueofb4)Unobservableforallthevalueofb

    Q.135 ThepartofarmatureelectriccircuitofadcmotorwhichtakeactivepartinEMFgenerationare

  • 1)BothThecoilsidesinsidetheslotsandTheoverhangpartofthecoil2)thecommutatorsegment3)Thecoilsidesinsidetheslots4)Theoverhangpartofthecoil

    Q.136 Inthehparametermodel,theinputandtheoutputsectionsaremodeledas1)Voltagesources2)Currentsources3)Inputsectionascurrentsourceandoutputsectionasvoltagesource4)Inputsectionasvoltagesourceandoutputsectionascurrentsource

    Q.137 Whichofthetransistorconfigurationiscapableofprovidingbothvoltagesandcurrentgains?1)Commonemitter2)Commoncollector3)Bothcommonemitterandcommonbase4)Commonbase

    Q.138 Accordingtosamplingtheorem,thesamplingfrequencyshouldbe1)Greaterthanthelowestsignalfrequency2)Lessthanhalfthehighestsignalfrequency3)Lessthanhalfthelowestsignalfrequency4)Greaterthantwicethehighestsignalfrequency

    Q.139 InanacbridgethreeimpedancesareasfollowsZ1=200ohm

  • 2)Weinsbridge3)Andersonsbridge4)Campbellbridge

    Q.143 Avaryingmagneticfluxlinkingacoilisgivenby=Xt2.Ifattimet=3s,theemfinducedis9V,thenthevalueofXis1)1.5Wb.s2

    2)0.66Wb.s2

    3)1.5Wb.s2

    4)0.66Wb.s2

    Q.144 Autilityofferstwotariffsformonthlybilling

    (i)Rs.2.5/unit(ii)Rs.200+Rs.1.75/unit

    Atwhatconsumptionlevelistariff(i)preferable1)Below267units2)Lessthan30units3)Above267units4)Atalllevels

    Q.145 Anamplifierwithopenloopinputresistanceof100khas20dBofvoltageseriesfeedback.Closedloopinputresistancewouldbe1)10k2)5k3)1000k4)2000k

    Q.146 Merzpriceprotectionschemeistheonefrom1)Distanceprotection2)Overcurrentprotection3)DifferentialProtection4)Earthfaultprotection

    Q.147 Thetransferfunctionofthesystemgivenbelowis

    1)

    2)

    3)

    4)

  • Q.148 Firingangleofathreephasesemiconverteris90.Toachievecontinuousmodeofconductionfreewheelingdiodeshouldconductfor1)302)903)04)60

    Q.149 Thetimeconstantofthecapacitivecircuitisdefinedasthetimeduringwhichvoltage1)risesto38.6%ofitsfinalsteadyvalue2)fallsto36.8%ofitsfinalsteadyvalue3)risesto63.2%ofitsfinalsteadyvalue4)risestoitsfinalsteadyvalue

    Q.150 Timeconstantofaninductivecircuit1)increaseswithdecreaseofinductanceandincreaseofresistance2)increaseswiththeincreaseofinductanceandtheincreaseofresistance3)increaseswithdecreaseofinductanceanddecreaseofresistance4)increaseswithincreaseofinductanceanddecreaseofresistance

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