ML13364A057

Exam (Test Answer Key) 2013 ILO NRC - RO

ML13364A057
Person / Time
Site:	Fermi
Issue date:	09/09/2013
From:	Division of Reactor Safety III
To:	Detroit Edison, Co
Carl Moore
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ML11355A016	List: ML13364A056 ML13364A057 ML13364A061
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Download: ML13364A057 (144)

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EXAMINATIONANSWERKEY2013ILONRC-RO 1ID:R01Points:1.00Theplantisoperatingat100%poweratendofcorelife.Followingpowermaneuverslastnight,conditionsareasfollows:Allrodsout80%RatedCoreFlowRecircPumpAspeedis75%RecircPumpBspeedis70%Basedontheseconditions,whatactionisrequired?(SeeattachedPower-to-FlowMap.)A.PlacetheReactorModeSwitchinSHUTDOWN.B.MaintaincurrentparametersuntilXenonhasreachedequilibrium.C.NotifySNEofunexpectedoperationoutsidethePowertoFlowMap.D.WithdrawControlRodsand/orraisecoreflowwiththe"B"Recircpumptoreturntopre-maneuverpositions.Answer:CAnswerExplanationPerMOP19,ReactorEngineering(SNE)shallbenotifiedofallunplannedcorereactivitychangesandabnormalities.PlausibleDistractors:A.AReactorScramisnotwarrantedsincethereisnocoreinstabilitynotedANDnoproceduralguidancetoscram.B.Again,iftheoperationisoutsidethenormalpowertoflowmapregions,thesituationshouldbeaddressedimmediatelyandcorrected.D.Justmakingunsupervisedcoreparameterchangesisnotallowedandcouldpotentiallyleadtoamoreseveresituation.ILOEXAMPage:1of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion1InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31866User-DefinedID:R01CrossReferenceNumber:26639Topic:UnplannedCoreReactivityChangesNumField1:LOKHNumField2:10CFR55.41(b)4TextField:ILO2013mikeComments:K/A-PartialorCompleteLossofForcedCoreFlowCirculation:Abilitytointerpretreferencematerials,suchasgraphs,curves,tables,etc.CopyofpowertoflowmapmustbeprovidedQuestion1Table-ItemLinksPlantProcedures20.138.01ODE-01ReactivityManagementMOP19NUREG1123KACatalogRev.2G2.1.253.9/4.2Abilitytointerpretstationreferencematerialssuchasgraphs,curves,tables,etc.295001PartialorCompleteLossofForcedCoreFlowCirculationILOEXAMPage:2of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 2ID:R02Points:1.00Theplantisoperatingat100%whenabirdstrikeresultsinalossof120KV.Allsystemsoperateasdesigned.Withnooperatoraction,whatistheeffectontheDCsystem?A.Chargers2A-1/2A-2willcarrytheDCloads.B.SpareCharger2A1-2willcarrytheDCloads.C.Division1ESFbatterieswillcarryitsDCloadsforonly3hours.D.Division1ESFbatterieswillcarryitsDCloadsforatleast4hours

.Answer:DAnswerExplanationWithalossof120KVthebatterychargerswillhavetobemanuallyplacedbackinthechargingstate.TheESFbatteriesaredesignedtolastatleast4hourswithoutthechargersinoperation.Aisplausible,butchargerswouldhavetobeplacedinoff/reset,thenrun.Bisplausible,butsparechargerwouldhavetobemanuallyplacedinrun.CisamisunderstandingofTS3.8.4batteryrequiredtimes.Question2InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.50SystemID:31446User-DefinedID:R02CrossReferenceNumber:NEWTopic:DCoperationNumField1:LOKHNumField2:10CFR55.41(b)8TextField:ILO2013mikeComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoPARTIALORCOMPLETELOSSOFA.C.POWER:EffectofbatterydischargerateoncapacityILOEXAMPage:3of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion2Table-ItemLinks*DoNotUse*-OperationsRelatedProcedures23.309260/130vDCElectricalSystem(ESF&BOP)NUREG1123KACatalogRev.2295003AK1.012.7/2.9EffectofbatterydischargerateoncapacityILOEXAMPage:4of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 3ID:R03Points:1.00ThereactorhasscrammedduetoaLOSSofOffsitePower.ONLYEDGs13&14havestartedandloaded.WhatisthecurrentSOURCEofpowerforthestationDCloads?A.Division1ChargersaresupplyingDivision1DCLoads.Division2ChargersaresupplyingDivision2DCLoads.B.Division1BatteriesaresupplyingDivision1DCLoads.Division2ChargersaresupplyingDivision2DCLoads.C.Division1ChargersaresupplyingDivision1DCLoads.Division2BatteriesaresupplyingDivision2DCLoads.D.Division1BatteriesaresupplyingDivision1DCLoads.Division2BatteriesaresupplyingDivision2DCLoads.Answer:DAnswerExplanationWithONLYEDGs13and14loaded,Div1andDiv2DCloadsaresuppliedbyBatteries.MANUALactionisrequiredtoresetDiv2Chargers,whichhavepoweravailable.Aisplausible;isthenormalconfigurationforDCDistribution.Bisplausible;wouldbeselectedifcandidatehadmisconceptionthatEDG13and14automaticallyreenergizeDiv2Chargers.Cisplausible;wouldbeselectedifcandidatehadmisconceptionthatEDG13and14automaticallyreenergizeDiv1Chargers.Question3InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31546User-DefinedID:R03CrossReferenceNumber:315-0064-B000-001Topic:LOOP-EDGsNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013Comments:KA-KnowledgeoftheinterrelationsbetweenPARTIALORCOMPLETELOSSOFD.C.POWERandthefollowing:BatterychargerILOEXAMPage:5of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion3Table-ItemLinksPlantProcedures20.300.OffsiteNUREG1123KACatalogRev.2295004AK2.013.1/3.1BatterychargerILOEXAMPage:6of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 4ID:R04Points:1.00Whileoperatingat100%power,theGeneratorFieldBreaker41CSonCOPH11-P804opens,causingageneratortrip

.ThegeneratortripoccurredtoprotectagainstwhichONEofthefollowingconditions?A.MaintransformeroverexcitationB.ExcessiveinputcurrenttothegeneratorC.PhasetophasefaultsinthestatorwindingsD.PhasetogroundfaultsinthemaintransformerAnswer:BAnswerExplanationOpeningthefieldbreakerwouldresultinalossofgeneratorfieldandwiththegeneratortiedtothegridwouldresultinhighinputcurrentinthegenerator.Aisplausible,butifvoltsperhertzexceed114%,aturbinetripwillresult.Cisplausible,butphasetophasefaultsintheStatorwindingswillresultinaturbinetrip.Displausible,butgroundrelayswilldetectgroundfaultsinthegeneratorwindingsandleads,andresultinaturbinetrip.Question4InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31466User-DefinedID:R04CrossReferenceNumber:315-0155-A010-001Topic:MTGTripsNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeofthereasonsforthefollowingresponsesastheyapplytoMAINTURBINEGENERATORTRIP:MaingeneratortripILOEXAMPage:7of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion4Table-ItemLinksPlantProcedures23.118NUREG1123KACatalogRev.2295005AK3.043.2/3.2MaingeneratortripILOEXAMPage:8of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 5ID:R05Points:1.00Reactorhasscrammed.TheP603operatormustverifyallrodshaveinsertedintothecore.Whichofthefollowingmethodswilltheoperatorusetoverifytherodsfullyinserted?A.AllblueScramlightsarelitontheFullCoreDisplay.B.AllblueScramValvePilotSolenoidlightsonP603areoff.C.TheRWMConfirmShutdownscreenindicatesallrodsarein.D.AllIRMdetectorsareinserted,andpowerisonscalebelowIRMRange4.Answer:CAnswerExplanationTheRWMConfirmShutdownscreenwillindicatehowmanyrods(ifany)failedtoinsert.A.indicatesscramvalvesopen,butdoesnotindicaterodsinserted.B.isanimmediateaction,butdoesnotverifyrodposition.D.indicatespowerisbelowthePOAH,butdoesnotconfirmrodposition.Question5InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31266User-DefinedID:R05CrossReferenceNumber:NEWTopic:ScramCRPositionVerificationNumField1:LOKLNumField2:10CFR55.41(b)6TextField:ILO2013dougComments:KA-Abilitytooperateand/ormonitorthefollowingastheyapplytoSCRAM:ControlRodPositionQuestion5Table-ItemLinksPlantProcedures20.000.21NUREG1123KACatalogRev.2295006AA1.074.1/4.1ControlrodpositionILOEXAMPage:9of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 6ID:R06Points:1.00Theplantisoperatingat68%powerwhentheControlRoomisevacuatedduetotoxicfumes.Areactorscramcouldnotbecompletedpriortoevacuation.Whichofthefollowingisthepreferredmethodofscrammingthereactoranddeterminingactionsweresuccessful?A.OpenCB2A(C71-P001A),andverifyRPSTestabilitycabinetde-energized.B.OpenGeneratoroutputbreakerCF/CM,andverifyAPRMsindicatedecreasingReactorPower.C.Turnoffcircuits5&6onDistCab2PA-2and2PB-2,andverifyRPSwhiteGroupScramlightsindicateoff.D.Take2operableAPRMModeswitchesoutofoperate,andverifyAPRMsindicatedecreasingReactorPower.Answer:DAnswerExplanationTheRemoteShutdownPaneldoesnotincludereactorshutdownandturbinetripcontrolsbecauseitisassumedthatreactorshutdownandturbinetripwillbeperformedpriortoleavingtheControlRoom.Ifthisactionisnotpossible,thenreactorshutdownwillbeinitiatedbytakingtwoAPRMsoutofoperation.Aisplausible,butopeningCB2AwillonlyresultinaDiv1halfscram.Bisplausible;openingthebreakerswouldresultinareversepowerturbinetripandthusareactorscrambutisnotthepreferredmethod.Cisplausible;actionisrequiredtoremovepowertoSRVstopreventauncontrolledRPVblowdownforcontroloftheplantfromthededicatedshutdownpanelbasedonfirein3Lzone.Question6InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31467User-DefinedID:R06CrossReferenceNumber:NEWTopic:CREvacuationNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-Abilitytodetermineand/orinterpretthefollowingastheyapplytoCONTROLROOMABANDONMENT:ReactorpowerILOEXAMPage:10of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion6Table-ItemLinksPlantProcedures20.000.19NUREG1123KACatalogRev.2295016AA2.014.1*/4.1*ReactorpowerILOEXAMPage:11of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 7ID:R07Points:1.00Theplantisoperatingat100%withNorthandCenterTBCCWPumpsinservice,whenthefollowingoccurs:5D5,TBCCWPUMPSDIFFERENTIALPRESSUREHIGH/LOW,alarms.P43-R805,TBCCWHeadersPressureIndicator,indicatesad/pof19psi.Withtheseconditions,whichoneofthefollowingisthecorrectdiagnosisandrequiredoperatoraction?A.TBCCWDifferentialPressureistooLOW;STARTSouthTBCCWPump.B.TBCCWDifferentialPressureistooHIGH;STOPanoperatingTBCCWPump.C.TBCCWDifferentialPressureistooLOW;REDUCEMainTurbineGeneratorLoad.D.TBCCWDifferentialPressureistooHIGH;OPENP43-F405,TBCCWDPControlValve.Answer:AAnswerExplanationWithPressureIndicatorbelow20psig,TBCCWDifferentialPressureistooLOW.WithdegradedPressure,startingthestandbyTBCCWPumpisdirectedbyAOP20.128.01,LossofTBCCWSystem.QuestionrequirespersontodetermineifDPisHIGHorLOWbasedonareportedpressureindication,andselecttheappropriatemitigationresponse.b.Isplausible,andwouldbeappropriateperARP5D5forDifferentialPressureabove30psig.c.Isplausible,andistherequiredactionforacompletelossofTBCCWorwithindicationsofrisingtemperaturesontheMainTurbineGeneratorStatorWaterCoolingSystem.d.Isplausible,andwouldbeappropriateperARP5D5forDifferentialPressureabove30psigifaccompaniedby5D2,TBCCWPUMPSRECIRCVALVECLOSEDQuestion7InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.50SystemID:31528User-DefinedID:R07CrossReferenceNumber:NEWTopic:TBCCWPumptripNumField1:LOKHNumField2:10CFR55.41(b)4TextField:ILO2013mikeComments:KA-PartialorCompleteLossofComponentCoolingWater:Knowledgeofthepurposeandfunctionofmajorsystemcomponentsandcontrols.ILOEXAMPage:12of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion7Table-ItemLinksPlantProcedures20.128.0105D005NUREG1123KACatalogRev.2G2.1.284.1/4.1Knowledgeofthepurposeandfunctionofmajorsystemcomponentsandcontrols295018PartialorCompleteLossofComponentCoolingWaterILOEXAMPage:13of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 8ID:R08Points:1.00TheIASheaderhasruptured,andIASpressureisapproaching20psig.Thereactorwasmanuallyscrammed,andRPVleveldroppedto105inches.RPVlevelwasrestored,andRPVlevelandpressurearenowstabilized.Currently,ventilationtothefourthfloorReactorBuildingSLCTankareais_____________________.A.inservicesuppliedbySGTSB.inservicesuppliedbyRBHVACC.isolatedduetolossofStationAirD.notinserviceduetolowIASpressureAnswer:AAnswerExplanationSGTSautostartsonRBHVACisolationatRPVLevel2.B.isplausibleifthereisamisconceptionconcerningwhenRBHVACisolates.C&D.areplausibleifthereisamisconceptionconcerningtheeffectoflossofStationorInstrumentAirsystems.Question8InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31267User-DefinedID:R08CrossReferenceNumber:NEWTopic:LossofIAS-RBHVACNumField1:LOKHNumField2:10CFR55.41(b)8TextField:ILO2013dougComments:KA-KnowledgeoftheinterrelationsbetweenPARTIALORCOMPLETELOSSOFINSTRUMENTAIRandthefollowing:PlantVentilationILOEXAMPage:14of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion8Table-ItemLinksPlantProcedures20.129.01NUREG1123KACatalogRev.2295019AK2.082.8/2.9PlantventilationILOEXAMPage:15of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO 9ID:R09Points:1.00TheplantisoperatinginMode4withRHRpumpBinShutdownCooling.AtransientoccursintheplantwhichresultsinE1150-F008,RHRSDCoutboardisolationvalve,failingclosed.YouhavebeendirectedtoplaceaReactorRecircpumpinserviceanddefeatRWCUisolations.Whichoneofthefollowingisthereasonfortheseactions?A.Ensuresthenecessarypressureheadtopreventboilinginthecore.B.AllowsforloweringofleveltopreventatripoftheSBFWpump.C.PreventsaRWCUfilterdemininlettemperaturetrip.D.ProvidesameanstofeedandbleedtheRxvessel.Answer:DAnswerExplanationRHRSDCislostwiththeF008closed.StartingaRecircpumpanddefeatingRWCUisolationsalignsforafeedandbleedcontrolmethod.Aisapossiblemisconceptionofsystemsusedforpressurecontrol.BIsplausible;SBFWreceivesanisolationsignalforLevel8signal.SDCisinservicewithlevelatorabove220".Cisplausible,butRWCUfilterdeminsdonotcauseanisolationforhightemp.Question9InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31468User-DefinedID:R09CrossReferenceNumber:NEWTopic:ShutdownCoolingNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeofthereasonsforthefollowingresponsesastheyapplytoLOSSOFSHUTDOWNCOOLING:FeedingandbleedingreactorvesselILOEXAMPage:16of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion9Table-ItemLinksPlantProcedures20.205.0123.800.04NUREG1123KACatalogRev.2295021AK3.023.3/3.4FeedingandbleedingreactorvesselILOEXAMPage:17of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO10ID:R10Points:1.00FuelHandlingoperationsareinprogress,withtheReactorModeSwitchinREFUEL.Thefollowingsequenceofeventsoccurs:00:00-Drivetherefuelingbridgefromthefuelpooltooveracorecell.00:05-LowertheMastfromthefulluppositiontothebundleatthatcorecell.00:10-Grapplethefuelbundle.00:15-Raisethemastandfuelbundle.Whenshouldarodwithdrawalblockfirstbereceivedduringthissequenceofevents,ANDwhatisthereasonforthisrodblock?A.00:05;topreventinadvertentcriticality.B.00:15;topreventinadvertentcriticality.C.00:05;topreventunloadingacellwithawithdrawncontrolrod.D.00:15;topreventunloadingacellwithawithdrawncontrolrod.Answer:AAnswerExplanationThepurposeofrefuelinginterlocksistorestrictcontrolrodmovement,andrefuelingequipmentoperation,toreinforceoperationalproceduresthatpreventmakingthereactorcriticalduringrefueling.ArodblockresultswhentheModeswitchisinREFUELandtherefuelingplatformisnearoroverthecoreandthefuelgrapplenotfullup.BIsplausible,becausethereasonfortheinterlockistopreventinadvertentcriticality.CIsplausible,becausearodblockfirstoccursat00:05.DIsplausible,becausethereasonistopreventinadvertentcriticalitywhichoccursat00:05Question10InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31529User-DefinedID:R10CrossReferenceNumber:26603Topic:RefuelingrodblocksNumField1:LOKHNumField2:10CFR55.41(b)13TextField:ILO2013mikeComments:KA-Abilitytooperateand/ormonitorthefollowingastheyapplytoREFUELINGACCIDENTS:FuelhandlingequipmentILOEXAMPage:18of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion10Table-ItemLinksPlantProcedures03D113NUREG1123KACatalogRev.2295023AA1.033.3/3.6FuelhandlingequipmentILOEXAMPage:19of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO11ID:R11Points:1.00Theplantisbeingstartedafterarefuelingoutage.Reactorpowerwas9%whenasmallsteamleakdevelopedinthedrywell.TheCRShasentered29.100.01,Sheet2,PrimaryContainmentControl,basedonahighDrywelltemperatureof145°F.Drywellpressureis1.4psigandrising0.05psigevery15minutes.Whatactionshouldbetakeninaccordancewithplantprocedures?A.StartSGTS,andventtheTorus.B.VerifyRBHVACisrunning,andventtheDrywell.C.Scramthereactorinanticipationofanautomaticscram.D.PlaceRHRinTorusCooling,TorusSprayandDrywellSpray.Answer:BAnswerExplanationTheEOPs,stepPCP-1,directventingthedrywelltokeepDWpressure<1.68psiginaccordancewith29.ESP.07.A.isplausiblebecauseasteamleakwouldindicateparticulateintheair.TheexamineecouldexpecttheventpathtobethroughSGTStoreduceradioactiverelease.C.isplausiblebecausetheEOPshavebeenentered.Theexamineemaydeducethatascramonhighdrywellisimminentandconservativelyscramthereactor.Thisisnotthecorrectanswerbecauseventingthedrywellisdirectedandshouldallowtheoperatorstoperformacontrolledshutdownwithoutplacingtheplantthroughascramtransient.D.isplausiblebecausethereareelevatedcontainmentparameters.Theexamineemaydeterminethatcontainmentcoolingandpressurereductionisnecessaryatthistime.Question11InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:32866User-DefinedID:R11CrossReferenceNumber:NEWTopic:VentingDWPressureNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013Comments:KA-Abilitytodetermineand/orinterpretthefollowingastheyapplytoHIGHDRYWELLPRESSURE:DrywellpressureILOEXAMPage:20of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion11Table-ItemLinksPlantProcedures29.ESP.07NUREG1123KACatalogRev.2295024EA2.014.2*/4.4*DrywellpressureILOEXAMPage:21of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO12ID:R12Points:1.00Theplantisoperatingat100%whenacircuitcardfailureresultsinanuncontrolledloweringoftheReactorFlowLimit.Whatactionswouldyouberequiredtotake?A.Lowerthepressureregulatorsetpoint.B.Placethereactormodeswitchinshutdown.C.Verifythebackuppressureregulatortakescontrol.D.Adjusttheturbineflowlimitertomatchreactorflowlimit.Answer:BAnswerExplanationSuddenloweringoftheReactorFlowLimitwouldresultinthereactorpressureregulatorsystemselectingthisvaluethroughthelowvaluegatelogic.RPVpressurewillcontinuetoincrease,andneithertheTCVsnortheBPVswillopen.A.Isplausible,loweringthepressureregulatorsetpointwouldnormallycausethecontrolvalvestoopencausingpressuretolowerbutreactorflowlimiterfailurewouldpreventthis.C.Isplausible,wouldbetheactionifthepressureregulatorfailslow.

D.Isplausible,loweringtheturbineflowlimitwouldopenthebypassvalves

.Question12InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31530User-DefinedID:R12CrossReferenceNumber:NEWTopic:PressureRegulatorFailureNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-HighReactorPressure:Abilitytoperformwithoutreferencetoproceduresthoseactionsthatrequireimmediateoperationofsystemcomponentsandcontrols

.ILOEXAMPage:22of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion12Table-ItemLinksPlantProcedures03D16820.000.21NUREG1123KACatalogRev.2G2.4.494.6/4.4Abilitytoperformwithoutreferencetoproceduresthoseactionsthatrequireimmediateoperationofsystemcomponentsandcontrols295025HighReactorPressureILOEXAMPage:23of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO13ID:R13Points:1.00Afteraplanttransientandreactorscram,thefollowingconditionsexist:Div1RHRisinjectingwithONEPumpat13,500gpm.Div1CoreSprayisinjectingwithTWOPumpsat7,750gpm.TorusPressureis3.0psig.TorusLevelis-70(minus70)inches.TorusTemperatureis180°F.RPVPressureis85psig(steady).RPVWaterLevelis-10(minus10)inches(rising).TheNOintheReactorBuildingcallstoreporttheRHRandCoreSprayPumpsarerattling.Usingcurrentpumpconfiguration,whichofthefollowingistheMAXIMUMinjectionpermissibletoassureadequatecorecooling?(Seeattached29.100.01Sheet6curves.)A.CoreSprayFlow-6,000gpm;RHRFlow-8,000gpmB.CoreSprayFlow-7,000gpm;RHRFlow-10,000gpmC.CoreSprayFlow-7,000gpm;RHRFlow-8,000gpmD.CoreSprayFlow-6,000gpm;RHRFlow-10,000gpmAnswer:CAnswerExplanationCandidatemustapplyNPSHandVortexlimits.CSflowislimitedbyNPSHlimitcurve,andRHRflowislimitedbyVortexlimitcurve.TorusOverpressurecalculatestobe4.2psig.TheRHRvortexlimitfor-70"is<10,000gpm,whileNPSHis10,000gpm.Alldistractorsareplausiblebecausetheycontainaviolationofoneorbothcurves.Question13InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31486User-DefinedID:R13CrossReferenceNumber:802-3002-0007-050Topic:ECCSPumpLimitCurvesNumField1:LOKHNumField2:10CFR55.41(b)8TextField:ILO2013mikeComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoSUPPRESSIONPOOLHIGHWATERTEMPERATURE:PumpNPSHProvide29.100.01Sheet6withoutcautions.ILOEXAMPage:24of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion13Table-ItemLinksPlantProcedures29.100.01SH6NUREG1123KACatalogRev.2295026EK1.013/3.4PumpNPSHILOEXAMPage:25of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO14ID:R14Points:1.00WhichofthefollowingisareasonwhyDrywellSpraysareinitiatedtocontrolDrywellTemperatureintheEOPs?A.Ensurestheeffectsofchuggingareavoided.B.EnsuresNPSHlimitsforECCSpumpsarenotexceeded.C.MaintainstemperaturebelowDrywellTemperatureLCOlimits.D.MaintainstemperaturewithinPrimaryContainmentdesignlimits.Answer:DAnswerExplanationIfoperationofallavailabledrywellcoolingisunabletoterminateincreasingdrywelltemperaturebeforeapplicablecomponentqualificationorstructuraldesigntemperaturelimitsarereached,drywellspraysareinitiatedtoeffecttherequireddrywelltemperaturereduction.Thisisdonethroughthecombinedeffectsofevaporativeandconvectivecooling.AIsplausible,DrywellspraysareinitiatedwhenSuppressionChamberSprayInitiationPressureisexceededtoprecludechugging.BIsplausible,ToruswatertemperaturehasadirecteffectonNPSHlimitsbutDrywellSprayswouldhaveminimaleffectonToruswatertemperature.CIsplausible,DrywellLCOtemperatureisEOPentrycondition.Question14InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31533User-DefinedID:R14CrossReferenceNumber:802-3004-0007-019Topic:DrywellSprayNumField1:LOKLNumField2:10CFR55.41(b)9TextField:ILO2013mikeComments:KA-KnowledgeofthereasonsforthefollowingresponsesastheyapplytoHIGHDRYWELLTEMPERATURE:IncreaseddrywellcoolingILOEXAMPage:26of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion14Table-ItemLinksPlantProceduresBWROGEPGsVolume1BWROGEPGsVolume2NUREG1123KACatalogRev.2295028EK3.043.6/3.8IncreaseddrywellcoolingILOEXAMPage:27of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO15ID:R15Points:1.00RCICisbeingusedtocontrolRPVWaterLevelwithitssuctionalignedtotheToruswhenaleakintheTorusoccurs.WhichONEofthefollowingwilloccurFIRSTasTorusLevelcontinuestolower?A.RCICwillTRIPduetoLowSuctionPressure.B.RCICwillTRIPduetoLowCoolingWaterFlow.C.RCICsuctionwillAUTOTRANSFERtotheCSTduetoLowSuctionPressure.D.RCICsuctionwillAUTOTRANSFERtotheCSTduetoLowTorusWaterLevel.Answer:AAnswerExplanationRCICwilltriponLowSuctionPressure.B.Isplausible,iflowsuctionpressuretripdidNOToccur,RCICLubeOilTemperaturewouldrisetoapointwhereequipmentdamagecouldoccur.NotriponlubeoiltemperatureC.Isplausible,lowsuctionpressurecausesatrip,butnotasuctiontransfertotheCST.D.Isplausible,commonmisconceptionmaybeidentified-CSTlowwaterlevelactuatessuctiontransfertoTorus.Question15InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31531User-DefinedID:R15CrossReferenceNumber:315-0143-C002-001Topic:RCICTripNumField1:LOKLNumField2:10CFR55.41(b)8TextField:ILO2013mikeComments:KA-Abilitytooperateand/ormonitorthefollowingastheyapplytoLOWSUPPRESSIONPOOLWATERLEVEL:RCICILOEXAMPage:28of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion15Table-ItemLinksPlantProcedures01D94NUREG1123KACatalogRev.2295030EA1.023.4/3.5RCIC:Plant-SpecificILOEXAMPage:29of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO16ID:R16Points:1.00Followingatransient,plantconditionsare:DrywellPressureis8psig.NOHighORLowPressureInjectionsystemsarerunning.WhichofthefollowingistheLOWESTstableRPVWaterLevelwhichassuresAdequateCoreCooling?A.TopofActiveFuel(TAF)B.25inchesBELOWTAFC.40inchesBELOWTAFD.48inchesBELOWTAFAnswer:CAnswerExplanationMinimumZeroInjectionWaterLevel(MZIRWL)definedbytheEOPFlowchartsis-40inches.IntheEPGs(AppC,pgC-2-53),theMZIRWListhelowestRPVwaterlevelatwhichthecoveredportionofthereactorcorewillgeneratesufficientsteamtopreventanycladtemperatureintheuncoveredpartofthecorefromexceeding1,800°F.TheMZIRWLisdeterminedassumingnowaterisinjectedintotheRPV.Aisplausible;TAFassuresAdequateCoreCooling,butisNottheLowestlevel.Bisplausible,andisthelowerlimitifInjectionSystemsareoperating.DisplausibleifBOTHCoreSprayPumpsinoneloopareoperating.Question16InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31487User-DefinedID:R16CrossReferenceNumber:802-3001-0108-001Topic:ACCwaterlevelNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-Abilitytodetermineand/orinterpretthefollowingastheyapplytoREACTORLOWWATERLEVEL:AdequateCoreCoolingILOEXAMPage:30of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion16Table-ItemLinksPlantProcedures29.100.01SH3BWROGEPGAppCNUREG1123KACatalogRev.2295031EA2.044.6*/4.8*AdequatecorecoolingILOEXAMPage:31of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO17ID:R17Points:1.00Afailuretoscram(ATWS)hasoccurred.Thefollowingconditionsexist:Fortyeight(48)controlrodsremainpartiallywithdrawn.BothCRDpumpsareoperating.MPUs2and3arede-energized.P50-R870IASHeaderPressureIndicatorreads0psig.Whichoneofthefollowingmethodsshouldbeattemptedtoinsertthecontrolrods?A.ManuallyventtheCRDMover-piston.B.Scramwithdrawncontrolrodsindividually.C.Manuallydrivewithdrawncontrolrodsindividually.D.DefeatRPSandARIlogic,resetthescram,theninsertmanualscram.Answer:AAnswerExplanationThelossofairpreventsresettingscram,andthelossofMPU3preventsuseofRMCS(norodselectpower).Ventingtheover-pistonareaistheonlyavailableoption.B.isincorrectbecausetherodscannotbeindividuallyscrammedifthescramairheadercannotbepressurized.C.isincorrectbecausenorodselectpowerisavailable.D.isincorrectbecausedefeatingRPSandARIlogicwillnotclosethescramvalvesbecausethelossofair.Question17InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31506User-DefinedID:R17CrossReferenceNumber:NEWTopic:ATWS-methodsNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-SCRAMConditionPresentandReactorPowerAboveAPRMDownscaleorUnknown:Generic2.4.31-Knowledgeofannunciatoralarms,indications,orresponseprocedures

.ILOEXAMPage:32of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion17Table-ItemLinksPlantProcedures29.ESP.03NUREG1123KACatalogRev.2G2.4.314.2/4.1Knowledgeofannunciatorsalarms,indications,orresponseprocedures295037SCRAMConditionPresentandReactorPowerAboveAPRMDownscaleorunknownILOEXAMPage:33of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO18ID:R18Points:1.00Duringanaccidentconditioninvolvingfueldamageandaradiationrelease,thefollowingconditionsexist:ModeSwitchisinSHUTDOWN.ReactorPoweris12%andoscillating.Div1AXMChannel4is6.0Ci/cc(rising).Div2AXMChannel4is5.8Ci/cc(rising).WhydotheEPGBASESpermitbypassoftheMSIVLevel1andHighRadiationinterlocksinthiscondition?A.PreventsathreattoDrywellintegrityfromHydrogenaccumulation.B.PreventspoweroscillationsfromexceedingtheSteamFlowcapacityoftheSafetyReliefValves.C.AllowstheMainCondenserinconjunctionwiththeOffGasSystemtoreducethedosetothepublic.D.AllowsMainSteamLineRadiationMonitordatatobeusedtoimprovetheaccuracyofOffsiteDoseCalculations.Answer:CAnswerExplanationBWROGEPGstates:If,instead,highradiationinterlocksarenotbypassedandsteamisdischargedthroughtheSRVsintothesuppressionpool,radionuclidesnotscrubbedinthepoolwillaccumulateinthecontainmentatmosphere,fromwhichtheymayescapeduetonormalcontainmentleakage.EvenifprocessedpriortoreleasebytheStandbyGasTreatmentSystem,thepublicdosewillbehigherthaniftheseradionuclideswereretainedinorprocessedbytheOffgasSystem.Aisplausible;FuelDamagemaybeaccompaniedbyHydrogengeneration,whichcanbealongtermcontainmentthreat.Bisplausible;otherATWSmitigationactionsreducetheprobabilityoffueldamagefromcorepoweroscillations.Displausible,MSLradmonitorreadingsareNOTusedforoffsitedosecalculationsILOEXAMPage:34of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion18InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31507User-DefinedID:R18CrossReferenceNumber:802-3003-0013-049Topic:FuelDamage-RadreleaseNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoHIGHOFF-SITERELEASERATE:ProtectionofthegeneralpublicQuestion18Table-ItemLinksPlantProceduresBWROGEPGsVolume1NUREG1123KACatalogRev.2295038EK1.024.2*/4.4*ProtectionofthegeneralpublicILOEXAMPage:35of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO19ID:R19Points:1.00Theplantisoperatingatratedconditionswhenasmallfirestartsaroundthe2ATransformer.Whichoneofthefollowingdescribestheresponseofthe2ATransformerDelugeSystemwhenthe2ATransformerHeatSensoractivates?A.TheWetPipesystemwillonlyspraywhenthefusiblelinkmelts.B.Spraywillnotoccuruntilthe2ATransformerisde-energizedbyopeningbreakersCMandCF.C.Spraywillautomaticallyoccur,whichwillresultinasubsequenttripoftheCMandCFbreakers.D.Thedelugevalveopensadmittingwatertothesprinklerpiping,butdoesn'tsprayuntilthefusiblelinkmelts.Answer:BAnswerExplanationTransformerDelugeSystemswillnotactuateunlessTransformerOutputBreakersareopenORpushbuttononCOPisdepressedANDanyotherinitiationsignalorfaultalarmisin.A.Isplausible,theDelugesystemusesopensprinklersinsteadoffusiblesprinklersC.Isplausible,thesystemwillnotactuateunlesstheoutputbreakersareopened.D.Isplausible,thetransformerusesaDelugeSprinklerSystemandnotthewetpipefusiblelinkQuestion19InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31532User-DefinedID:R19CrossReferenceNumber:315-0172-A021-002Topic:Transformer2AdelugeNumField1:LOKLNumField2:10CFR55.41(b)4TextField:ILO2013mikeComments:KA-KnowledgeoftheinterrelationsbetweenPLANTFIREONSITEandthefollowing:Sensors/detectorsandvalvesILOEXAMPage:36of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion19Table-ItemLinksPlantProcedures23.501.01NUREG1123KACatalogRev.2600000AK2.012.6/2.7Sensors,detectorsandvalvesILOEXAMPage:37of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO20ID:R20Points:1.00RHRpumpBisoperatinginTorusCoolingModewhenaGridDisturbanceoccurs.ONLYthe345kVpowerlinesvoltageisdegradingat0.3metervoltsperminute.WhichONEofthefollowingdescribestheeffect,ifany,ofthisvoltagedegradation?RHRPumpB___________________________________________________.A.breakerwilltriponundervoltageB.breakerwilltriponadegradedvoltageloadshedC.breakerwilltriponovercurrent,duetovoltagereductionD.willcontinuetooperateUNAFFECTEDforaprolongedperiodoftimeduetoautomaticLoadTapChangerAnswer:BAnswerExplanationAsvoltagegraduallylowers,theBUSDegradedVoltageconditionwilloccurfirstthuscausingaloadshed.Aisplausible,wouldbetrueforarapidgridvoltagedrop.Cisplausible,asvoltagelowerscurrentwillrisewithconstantpower.Displausible,LTC'sarenotusedonthe345kVsideduetothewidefluctuationsinvoltage.Question20InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31526User-DefinedID:R20CrossReferenceNumber:315-0057-B003-001Topic:GridDisturbanceNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeoftheinterrelationsbetweenGENERATORVOLTAGEANDELECTRICGRIDDISTURBANCESandthefollowing:Breakers,relaysILOEXAMPage:38of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion20Table-ItemLinksMaintenancePlantDrawingsSD-2500-04I-2572-29NUREG1123KACatalogRev.2700000AK2.023.1/3.3Breakers,RelaysILOEXAMPage:39of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO21ID:R21Points:1.00Theplantisoperatingat68%power.Condenserpressureisrising.Thecurrentvalueis3.0psia.Atthistime,whatactionshouldtheoperatortake,andwhatisthereasonforthataction?A.PlaceadditionalSJAEsintoservicetolowercondenserpressure.B.StartanadditionalRingWaterBufferPumptolowercondenserpressure.C.Performarapidpowerreductiontostabilizecondenserpressureat0.7to2.5psia.D.PlacetheReactorModeSwitchtoSHUTDOWNtoprecludeanautomaticscramonMainTurbineTrip.Answer:DAnswerExplanationAOP20.125.01overridestatesthattheModeSwitchistobeplacedinShutdownifcondenservacuumreaches2.8psia.Thecrewwillmakeaconservativedecisiontoshutdownpriortolosingtheheatsink.Distractorsareplausibleinthattheyareactionstobetakenascondenserpressurerises,buttheoverridetakesprecedence.Question21InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.50SystemID:31347User-DefinedID:R21CrossReferenceNumber:NEWTopic:LossofVacuumNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013dougComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoLOSSOFMAINCONDENSERVACUUM:LossofHeatSinkILOEXAMPage:40of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion21Table-ItemLinksPlantProcedures20.125.01NUREG1123KACatalogRev.2295002AK1.033.6/3.8LossofheatsinkILOEXAMPage:41of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO22ID:R22Points:1.00HPCIandRCIChaveautomaticallystartedfollowingalossoffeedwaterevent.RPVlevelrisesto220inches,andashorttimelaterHPCIturbinespeedis0RPM.AsRPVlevelbeginstolowerbelow160inches,theCRSdirectsHPCItoberestarted.WhatMINIMUMaction(s)mustbetakentorestoreHPCIinjection?A.OpenE4150-F001,TurbineSteamSupplyIsolationValve.B.DepresstheReactorHighWaterLevelSignalResetpushbutton.C.OpenE4150-F003,HPCISteamSupplyOutboardIsolationValve.D.DepresstheReactorHighWaterLevelSignalResetpushbutton,andopenE4150-F006,HPCIPumpDischargeOutboardIsolationValve.Answer:DAnswerExplanationWithnoinitiationsignalpresent(L2/HiDW),E4150-F006willhavetobemanuallyopenedoncethehighwaterlevelresetispushed.A.E4150-F001remainsopenafteraL8trip.B.TheL8resetpushbuttonwillopentheHPCIturbinestopandcontrolvalve,buttheF006mustbemanuallyopened.C.E4150-F003remainsopenafteraL8trip.Question22InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31547User-DefinedID:R22CrossReferenceNumber:26581Topic:LossofFeedwaterNumField1:LOKHNumField2:10CFR55.41(b)8TextField:ILO2013mikeComments:KA-Abilitytooperateand/ormonitorthefollowingastheyapplytoHIGHREACTORWATERLEVEL:HPCIILOEXAMPage:42of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion22Table-ItemLinksPlantProcedures23.20202D089NUREG1123KACatalogRev.2295008AA1.043.5/3.5HPCI:Plant-SpecificILOEXAMPage:43of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO23ID:R23Points:1.00Theplantisoperatingat100%powerwhenthefollowingalarmsarereceived:3D156,REACTORWATERLEVELLOW5D68,RFPLOWFLOW/SRFPTTRIPPEDWhatistheexpectedresponsefromtheReactorRecirculationsystemandthebasisforthatresponse?A.BothRRpumpstriptopreventinadvertentpoweroscillations.B.RRPumpsrunbacktoLimiter1topreventinsufficientsubcooling/NPSHloss.C.RRPumpsrunbacktoLimiter2/3toreducesteamflowandwaterlossfromthevessel.D.RRPumpscontinueoperatingatpre-transientspeedstoprovideadditionalheatremoval.Answer:CAnswerExplanationRRLimiter2isactuatedwhenRPVLevel4(192.7)alarmsandaRFPistrippedorhaslowsuctionflow.ArunbackofRecirculationPumpspeedreducessteamflowthuswaterlossfromthevessel.Thisrunbackallowstheplanttimetorecoverfromatrippedfeedpumpwithoutthereactorscrammingonlowlevel.BIsplausible,RRLimiter1isactuatedforfeedflowlessthan20%orRecirculationpumpdischargevalvenotfullopen.AIsplausible,AlternateRodInsertion(ARI)tripsbothRRMGsetsforRPVLevel2.DIsplausible,misdiagnosedRRresponsetoaRFPtriptransient.Question23InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31548User-DefinedID:R23CrossReferenceNumber:NEWTopic:RRresponseNumField1:LOKHNumField2:10CFR55.41(b)3TextField:ILO2013mikeComments:KA-KnowledgeoftheinterrelationsbetweenLOWREACTORWATERLEVELandthefollowing:RecirculationsystemILOEXAMPage:44of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion23Table-ItemLinksPlantProcedures20.107.0120.138.01NUREG1123KACatalogRev.2295009AK2.033.1/3.2RecirculationsystemILOEXAMPage:45of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO24ID:R24Points:1.00WhatisthebasisfortheEmergencyOperatingProceduresrequiringTorusandDrywellSpraystobeterminatedpriorto0PSIG?A.ToensureNPSHlimitsforECCSpumpsarenotviolated.B.Topreventprimarycontainmentfrombecomingde-inerted.C.ToensuretheDrywellSprayInitiationLimitisnotexceeded.D.Topreventthecycliccondensationofsteamatthedowncomeropenings.Answer:BAnswerExplanationTheoperationofdrywellandsuppressionpoolspraysmustbeterminatedbythetimedrywellpressureandsuppressionchamberpressuredecreaseto0psigtoensurethatprimarycontainmentpressureisnotreducedbelowatmospheric.Maintainingapositivesuppressionchamberpressureprecludesairfrombeingdrawninthroughthevacuumreliefsystemtode-inerttheprimarycontainmentandalsoprovidesapositivemargintothenegativedesignpressureoftheprimarycontainment.AThisisacautionassociatedwithreducingToruspressurethuspotentiallyviolatingNPSHlimits.C:TheDWSILpressurelimitationis2.68PSIGandisusedforinitiationofdrywellsprays.D:ThisistoprecludethechuggingeffectassociatedwiththeTorusSprayInitiatinglimitandthebasisforstartingsprayspriorto9psig.Question24InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31366User-DefinedID:R24CrossReferenceNumber:NEWTopic:Drywell/TorusSprayTerminationNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-HighDrywellPressure:KnowledgeoftheoperationalimplicationsofEOPwarnings,cautions,andnotes.ILOEXAMPage:46of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion24Table-ItemLinksPlantProcedures29.100.01SH6NUREG1123KACatalogRev.2G2.4.203.8/4.3KnowledgeofoperationalimplicationsofEOPwarnings,cautions,andnotes295010HighDrywellPressureILOEXAMPage:47of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO25ID:R25Points:1.00Duringacontrolrodwithdrawal,thefollowingindicationsarereceived:3D109RBMUpscale/Inop3D113ControlRodWithdrawalBlockWhiteRodPermissivelightOFFWhichofthefollowingisthefirstactiondirectedbyplantprocedures?A.BypasstheRodBlockMonitor.B.Verifythermallimitsareacceptable.C.Deselect,thenreselecttheselectedrod.D.EnsuretheRBMalarmreferencepointhasautomaticallyresettoLOWorMEDIUM.Answer:BAnswerExplanationBoth3D109and23.607directsperformanceofthermallimitverificationpriortomovinganyotherrods.A.isplausibleifexamineethinksRBMmalfunctionisindicated.C.isplausibletoresetRBMforanedgerod.D.isplausiblebutisonlyrequireduponstartoftheunit.Question25InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31367User-DefinedID:R25CrossReferenceNumber:NEWTopic:RBMResetPrereqsNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-KnowledgeofthereasonsforthefollowingresponsesastheyapplytoINADVERTENTREACTIVITYADDITION:ControlRodBlocksILOEXAMPage:48of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion25Table-ItemLinksPlantProcedures23.607NUREG1123KACatalogRev.2295014AK3.023.7/3.7ControlrodblocksILOEXAMPage:49of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO26ID:R26Points:1.00AsystemthatcannotbeisolatedfromtheRPVisdischargingoutsideoftheprimarycontainment.TheCRShasentered29.100.01,Sheet5,SecondaryContainmentandRadRelease.WhichofthefollowingsituationsrequiresthatanEmergencyDepressurizationbeperformed?(Tables12and14fromEOP29.100.01,Sheet5provided)A.HPCI/CRDpumpareaat220°FwithSBHPCIrmat6R/hrB.NWRHRpumproomat230°FwithSECSpumprmat200°FC.RBSBNECORNERat5.3R/hrwithRBSBNWCORNERat5.1R/hrD.SWRHRpumproomat205°FwithRBSBSWcornerat5.1R/hrAnswer:CAnswerExplanationBothRadlevelsaregreaterthanmaxsafe.ThisisavalidROquestionbecauseROsarerequiredtoknowEOPbases.A/Dareincorrectbecausetheyeachsuggestinter-parametercombinations.TheirplausibilityisbasedonthefactthattheystillrequireananalysisofTable12and14todrawaproperconclusion.BisincorrectbecauseSECSPUMPRMisstillbelowitssafemaxvalue.ItsplausibilityisbasedonthefactthatitstillrequiresananalysisofTable12and14todrawaproperconclusion.Question26InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:32886User-DefinedID:R26CrossReferenceNumber:GRANDGULFEXAMBANK(MOD)Topic:SCradlevelsNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mcComments:KA-Abilitytodetermineand/orinterpretthefollowingastheyapplytoHIGHSECONDARYCONTAINMENTAREARADIATIONLEVELS:ArearadiationlevelsILOEXAMPage:50of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion26Table-ItemLinksPlantProcedures29.100.01SH5NUREG1123KACatalogRev.2295033EA2.013.8/3.9ArearadiationlevelsILOEXAMPage:51of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO27ID:R27Points:1.00WhileoperatingDivision1SGTSmanuallyforasurveillance,thefollowingindicationsexist:SGTSFlowchangedfrom4100scfmto3500scfmandisloweringslowlySGTSExhaustFanisrunningSGTSCoolingFanisnotrunningTheoperatorinadvertentlydepressestheDivision1Manualisolationpushbutton.Whichofthefollowingisapotentialconcernforthiscondition?A.Reducedflowwilllowertheresidenttimeinthecharcoalfilterbedsreducingtheeffectiveness.B.Reducedflowwillraisetraintemperaturescausingreducedtraineffectiveness.C.Unlessflowisraised,anautomaticstartoftheotherdivisionwilloccur.D.SGTSmaynotbeabletomaintainbuildingdifferentialpressure.Answer:DAnswerExplanationA.RaisesresidencetimesB.truebutisaminorifanyeffectontraineffectivenessC.isnottruebutifinitiatingconditionsarenotwellunderstoodcoulddistractD.istruebasesforSGTSflowismaintainingbuildingdppost-LOCA.Question27InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31406User-DefinedID:R27CrossReferenceNumber:NEWTopic:SChighd/pNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mdComments:KA-Abilitytooperateand/ormonitorthefollowingastheyapplytoSECONDARYCONTAINMENTHIGHDIFFERENTIALPRESSURE:SBGTILOEXAMPage:52of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion27Table-ItemLinksPlantProcedures23.404NUREG1123KACatalogRev.2295035EA1.023.8/3.8SBGT/FRVSILOEXAMPage:53of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO28ID:R28Points:1.00WhichofthefollowingisthemethodusedbyRHRLPCImodetoassureadequatecorecooling?A.spraycoolingB.steamcoolingC.shutdowncoolingD.coresubmergenceAnswer:DAnswerExplanationCorrectAnswerD-RHRinjection,alongwithjetpumpconfiguration,isusedtofilltheRPVtocoverthecoreduringaLOCA.PlausibleDistractors:A-othermethodusedtoassureACC,butnotthemethodusedbyRHRLPCI.B-othermethodusedtoassureACC,butnotthemethodusedbyRHRLPCI.C-othermethodusedtoassurecooling,butnotthemethodusedbyRHRLPCI.Question28InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31407User-DefinedID:R28CrossReferenceNumber:NEWTopic:LPCI-ACCNumField1:LOKLNumField2:10CFR55.41(b)8TextField:ILO2013dougComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoRHR/LPCI:INJECTIONMODE(PLANTSPECIFIC):CorecoolingmethodsQuestion28Table-ItemLinksNUREG1123KACatalogRev.2203000K5.023.5/3.7CorecoolingmethodsILOEXAMPage:54of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO29ID:R29Points:1.00PlantisinMode5withRHRinShutdownCoolingon"A"loop.Reactortemperaturesuddenlystartstrendingupandispresentlyat135°F.Whichofthefollowingconditionscouldcausethis?A.GSWislost.B.EECWislost.C.RHRSWislost.D.FuelPoolCoolingislost.Answer:CAnswerExplanationCorrectAnswerC-LossofRHRSWresultsinalossofheatsinkforShutdownCooling.PlausibleDistractors:A&B.areplausible,butarenottheheatsinkusedinthiscase.D.isplausible,butwouldnotcausetemperaturetosuddenlyrise.Question29InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31426User-DefinedID:R29CrossReferenceNumber:NEWTopic:ShutdownCoolingCooldownRateNumField1:LOKLNumField2:10CFR55.41(b)5TextField:ILO2013dougComments:KA-KnowledgeoftheeffectthatalossormalfunctionofthefollowingwillhaveontheSHUTDOWNCOOLINGSYSTEM(RHRSHUTDOWNCOOLINGMODE):ComponentcoolingwatersystemsILOEXAMPage:55of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion29Table-ItemLinksPlantProcedures23.205NUREG1123KACatalogRev.2205000K6.053.2/3.3ComponentcoolingwatersystemsILOEXAMPage:56of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO30ID:R30Points:1.00At100%poweravalidhighdrywellpressuresignaloccurs.(1)WhatisthestatusofHPCI75secondsafterreceivingthehighdrywellpressuresignaland(2)whatoperatoractionmustbetaken?A.(1)Runninganddischargingthroughtheminimumflowline(2)TriptheHPCIturbineB.(1)Runningandinjectingtothevesselat5200gpm(2)VerifyadequatefeedflowanddialHPCIcontrollertominimumC.(1)Runningandinjectingtothevesselat5200gpm(2)TriptheHPCIturbineD.(1)Runninganddischargingthroughtheminimumflowline(2)VerifyadequatefeedflowanddialHPCIcontrollertominimumAnswer:BAnswerExplanationThesystemwillstartnormallyandinject.A.isplausiblebecauseHPCIstartsonHiDW.TheexamineemaybelieveitwillbeonminflowbecauseflowisnotrequiredforRPVlevelcontrol.Also,theymaytriptheturbinebecausetheturbineisnotneeded.C.isplausiblebecausetheymaydecidetotriptheturbinebecauseitisnotneededforRPVwaterlevelcontrol.ThecorrectactionistothrottleflowtomaintainlevelinbandandshutdowniawtheSOPifitisnotneeded.D.isplausiblebecausetheexamineemaybelieveitwillbeonminflowbecauseflowisnotrequiredforRPVlevelcontrol.ILOEXAMPage:57of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion30InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31427User-DefinedID:R30CrossReferenceNumber:NEWTopic:HPCIstartsignalsNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mcComments:KA-Abilityto(a)predicttheimpactsofthefollowingontheHIGHPRESSURECOOLANTINJECTIONSYSTEM;and(b)basedonthosepredictions,useprocedurestocorrect,control,ormitigatetheconsequencesofthoseabnormalconditionsoroperations:HighdrywellpressureQuestion30Table-ItemLinksPlantProcedures23.202NUREG1123KACatalogRev.2206000A2.164/4.1Highdrywellpressure:BWR-2,3,4ILOEXAMPage:58of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO31ID:R31Points:1.00Whileoperatingat100%power,withEDG#11outofservice,aRecirculationLoopruptureoccurs.ThisisfollowedbyalossofBus64B.Whatistheimpactofthiselectricalloss?A.CoreSprayPumpAisde-energized.B.CoreSprayPumpBisde-energized.C.RHRPumpCisde-energized.D.RHRPumpDisde-energized.Answer:AAnswerExplanationOnlyCoreSprayPumpAispoweredfrom4160vBus64B.B.Isplausible,CSpumpBispoweredfrom4160vBus65EC.Isplausible,RHRpumpCispoweredfrom4160vBus64CD.Isplausible,RHRpumpDispowerfrom4160vBus65FQuestion31InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31428User-DefinedID:R31CrossReferenceNumber:NEWTopic:CoreSprayPowerNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Knowledgeofelectricalpowersuppliestothefollowing:PumppowerQuestion31Table-ItemLinksPlantProcedures23.203NUREG1123KACatalogRev.2209001K2.013.0*/3.1*PumppowerILOEXAMPage:59of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO32ID:R32Points:1.00FollowingaLOCAfrom100%power,reactorpressureislowering.AtwhichofthefollowingreactorpressureswillCoreSpraybegintoinject?A.460psigB.400psigC.310psigD.250psigAnswer:DAnswerExplanation250psigisbelowtheCoreSprayPumpsinjectionpressure.Ifthesystemisaligned,injectionwilloccur.A.Isplausible,461psigisthereactorpressurelowalarm2D27whichopensLPCIandCSInbdIsoVlv.B.Isplausible,thispressureisabovethedischargeinjectionpressureofCS.C.Isplausible,thispressureisthedischargepressureofLPCI.Question32InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31429User-DefinedID:R32CrossReferenceNumber:NEWTopic:CoreSprayInjectionPressureNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Abilitytopredictand/ormonitorchangesinparametersassociatedwithoperatingtheLOWPRESSURECORESPRAYSYSTEMcontrolsincluding:ReactorpressureILOEXAMPage:60of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion32Table-ItemLinksPlantProcedures29.ESP.01NUREG1123KACatalogRev.2209001A1.043.7/3.7ReactorpressureILOEXAMPage:61of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO33ID:R33Points:1.00TheplanthasexperiencedanATWScondition,andSLCinjectionhasbeendirected.WhichRWCUvalveisolationsshouldbeexpectedfollowingSLCPumpstarting?A.G3352-F001,RWCUSupplyInbdIsoVlv,andG3352-F004,RWCUSupplyOtbdIsoVlvB.G3352-F001,RWCUSupplyInbdIsoVlv,andG3352-F220,RWCUtoFWOtbdCntmIsoVlvC.G3352-F004,RWCUSupplyOtbdIsoVlv,andG3352-F220,RWCUtoFWOtbdCntmIsoVlvD.G3352-F001,RWCUSupplyInbdIsoVlv,andG3352-F004,RWCUSupplyOtbdIsoVlv,andG3352-F220,RWCUtoFWOtbdCntmIsoVlvAnswer:CAnswerExplanationCorrectAnswerC-WhentheSLCactuationswitchedisplacedinA(B)RUN,G3352-F004closesandtheRWCUPumpstrip,andG3352-F220closes.PlausibleDistractors:A-areplausible,butG3352-F001onlycloseswhenaRWCUSystemisolationisreceived.B-areplausible,butG3352-F001onlycloseswhenaRWCUSystemisolationisreceived.C-areplausible,butG3352-F001onlycloseswhenaRWCUSystemisolationisreceived.Question33InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31430User-DefinedID:R33CrossReferenceNumber:NEWTopic:SLCinjectionindicationsNumField1:LOKLNumField2:10CFR55.41(b)8TextField:ILO2013dougComments:KA-KnowledgeofSTANDBYLIQUIDCONTROLSYSTEMdesignfeature(s)and/orinterlockswhichprovideforthefollowing:RWCUisolationILOEXAMPage:62of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion33Table-ItemLinksPlantProcedures23.139NUREG1123KACatalogRev.2211000K4.073.8*/3.9*RWCUisolationILOEXAMPage:63of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO34ID:R34Points:1.00Reactorpowerisstableat100%when3D11,SLCContinuityLoss,alarms.TheoperatordispatchedtoH11-P613reportsthatSquibValveCurrentsareC41-M600Areading5ma,andC41-M600Breading0ma.Basedontheseindications,whichoneofthefollowingstatementsistrue?A.SquibAindicatinglightisOFF.B.SquibBindicatinglightisOFF.C.BothSquibindicatinglightsareON.D.BothSquibindicatinglightsareOFF.Answer:BAnswerExplanationCorrectAnswerB-SquibcurrentreadingshouldcorrespondtotheindicatinglightonP603.WhenthelightisON,currentshouldbe~5ma.ThelightisOFFwhencurrentis<2ma.PlausibleDistractors:A-areplausibleifexamineeisconfusedaboutthecorrelationofcurrentreadingstolightindication.C-areplausibleifexamineeisconfusedaboutthecorrelationofcurrentreadingstolightindication.D-areplausibleifexamineeisconfusedaboutthecorrelationofcurrentreadingstolightindication.Question34InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31431User-DefinedID:R34CrossReferenceNumber:NEWTopic:SLCinopNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-AbilitytomonitorautomaticoperationsoftheSTANDBYLIQUIDCONTROLSYSTEMincluding:ExplosivevalvesindicatinglightsILOEXAMPage:64of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion34Table-ItemLinksPlantProcedures03D011NUREG1123KACatalogRev.2211000A3.033.8/3.8Explosivevalvesindicatinglights:Plant-SpecificTechnicalSpecifications3.1.7StandbyLiquidControl(SLC)SystemILOEXAMPage:65of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO35ID:R35Points:1.00WhichofthefollowingcombinationsresultinaReactorScram?A.RPVPressureinstrumentsB21N078AandCupscalehighB.MSLRadiationMonitorchannelsD11K603BandDupscaleC.IRMAandHHIGH-HIGHwithModeSwitchnotinRUND.IRMEandGHIGH-HIGHwithModeSwitchnotinRUNAnswer:CAnswerExplanationCIRMA(tripchannelA1)andH(tripchannelB2)High-Highw/ModeSwitchnotinRUNwilltripbothRPSlogicsforafullscram.ARPVPressureinstrumentsB21-N078AandCarebothinthesametripsystemandwillonlycauseahalfscram.BMSLRadMonitorsD11-K603BandDarebothinthesametripsystemandwillonlycauseahalfscram.DIRME(A1)andG(A2)arebothinthesametripsystemandwillonlycauseahalfscram.Question35InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31432User-DefinedID:R35CrossReferenceNumber:NEWTopic:RPSlogicNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoREACTORPROTECTIONSYSTEM:SpecificlogicarrangementsILOEXAMPage:66of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion35Table-ItemLinksPlantProcedures23.601NUREG1123KACatalogRev.2212000K5.023.3/3.4SpecificlogicarrangementsILOEXAMPage:67of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO36ID:R36Points:1.00AFullScramwilloccurfromwhichofthefollowingcombination:A.APRMdownscalewithsecondAPRMUpscaletripB.APRMSimulatedThermalPowerUpscalewithsecondOPRMUpscaletripC.LPRMLowCountwithsecondAPRMInoperableD.AnAPRMkeylockswitchisoutofoperatewithsecondAPRMCriticalTestFaultAnswer:DAnswerExplanationD.ISCORRECT23.605enclosurePlausibleDistractors:AKnowledgeMisconception.RODBLOCKWITHONEVOTEBKnowledgeMisconception.RODBLOCKWITHONEVOTEC.KnowledgeMisconception.RODBLOCKWITHONEVOTEQuestion36InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31433User-DefinedID:R36CrossReferenceNumber:NEWTopic:RPS-APRMSNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Abilitytomanuallyoperateand/ormonitorinthecontrolroom:ReactorpowerQuestion36Table-ItemLinksPlantProcedures23.605NUREG1123KACatalogRev.2212000A4.054.3*/4.3*ReactorpowerILOEXAMPage:68of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO37ID:R37Points:1.00Areactorstartupisinprogress.Thereactoriscritical,andtheP603operatorisrangingIRMswhen3D64,IRMDownscale,alarms.Inaccordancewith23.603,theP603operatorshould____________________.A.bypasstheassociatedIRMB.rangetheassociatedIRMtonextlowerrangeC.rangetheassociatedIRMtonexthigherrangeD.waituntilrisingreactorpowercausesthedownscalealarmtoclearAnswer:BAnswerExplanationCorrectAnswerB-DuringreactorstartupwhilepowerisascendingthroughtheIntermediaterange,avoidrangingdownIRM'sunless3D64,"IRMDOWNSCALE"isreceivedfortheIRMdownscale.PlausibleDistractors:A.Isplausible,wouldbeperformedifdownrangewasunsuccessful.C.Isplausible,rangingtheIRMupwouldnotclearthedownscalealarmD.Isplausible,waitingforpowertoincreasewouldclearthealarmbutisnotprocedurallydrivenQuestion37InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31270User-DefinedID:R37CrossReferenceNumber:NEWTopic:Startup-IRMsNumField1:LOKLNumField2:10CFR55.41(b)6TextField:ILO2013dougComments:KA-IntermediateRangeMonitor(IRM)System:AbilitytointerpretandExecuteProcedureStepsILOEXAMPage:69of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion37Table-ItemLinksPlantProcedures23.603NUREG1123KACatalogRev.2G2.1.204.6/4.6Abilitytointerpretandexecuteproceduresteps215003IRMSystemILOEXAMPage:70of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO38ID:R38Points:1.00Thereactoroperatorisinsertingacontrolrodtolengthenreactorperiodduringareactorstartup.TheIRMchannelsareonRange3.ThereactormodeswitchisinSTARTUPandnoSRMchannelsarebypassed.WhatistheeffectifSRMAmalfunctionsandfailshigh?A.Rodmotionstops.B.Rodmotioncontinues.C.TheReactorScrams.D.AHalfScramisreceivedonRPSA.Answer:BAnswerExplanationTheshortinglinksareonlyremovedduringfuel/handlingevaluations.Arodwithdrawalblockwouldbeactuatedforanyrodbeingwithdrawn.Thisrodisbeinginserted.A.Isplausible,thiswouldbetrueforanyrodbeingwithdrawnC.Isplausible,wouldbetrueifshortinglinkswereremovedD.Isplausible,SRMAUpscaleTripcontactfeedsintoTripLogicA1.Question38InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31566User-DefinedID:R38CrossReferenceNumber:315-0122-0004-005Topic:SRMmalfunctionNumField1:LOKLNumField2:10CFR55.41(b)2TextField:ILO2013mikeComments:KA-Knowledgeofthephysicalconnectionsand/orcauseeffectrelationshipsbetweenSOURCERANGEMONITOR(SRM)SYSTEMandthefollowing:ReactorProtectionSystemILOEXAMPage:71of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion38Table-ItemLinksPlantProcedures23.602NUREG1123KACatalogRev.2215004K1.013.6/3.7ReactorprotectionsystemILOEXAMPage:72of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO39ID:R39Points:1.00Theplantisoperatingat100%powerwhen9D70,DIV1120VRPSBUS1APOWERFAILURE,alarms.WhataffectwillthisconditionhaveontheAveragePowerRangeMonitors(APRMs)?A.APRMswillremainenergized.B.APRMchannel1/3willbeINOP.C.ControlRodBlockANDAPRMUpscalewillalarm.D.APRM2-out-of-4LogicModulewillcauseaReactorSCRAM.Answer:AAnswerExplanationPowerisauctioneeredsuchthatalossofRPSpowerresultsintheAPRM,LPRMandRBMremainingenergizedandfunctional.Bisplausible,APRMs1/3receiveprimarypowerthroughRPSA.Cisplausible,butONLYpartiallycorrect,ControlRodBlockwilloccurbutAPRMsremainpoweredthroughQLVPSandupscalewillnotoccur.Displausible,2/4logicwillremainpoweredthroughauctioneeredpowerviaRPSB.Question39InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31567User-DefinedID:R39CrossReferenceNumber:NEWTopic:APRM-powersupplyNumField1:LOKHNumField2:10CFR55.41(b)6TextField:ILO2013mikeComments:KA-Knowledgeofelectricalpowersuppliestothefollowing:APRMchannelsILOEXAMPage:73of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion39Table-ItemLinksPlantProcedures23.60509D70NUREG1123KACatalogRev.2215005K2022.6/2.8APRMchannelsILOEXAMPage:74of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO40ID:R40Points:1.00Thereactorisoperatingwithbothrecirculationloopsinoperationwhenamanualrunbackisperformedresultinginthefollowingconditions:APRMFluxis73%.APRMRecircFlowis40%.TotalCoreFlowis54Mlbm/hr(equallydividedbetweenbothloops).WhichoneofthefollowingistheLOWESTAPRMpowerwhichwillproduceaSimulatedThermalPowerTrip?A.85%B.87%C.96%D.113.5%Answer:BAnswerExplanationJustification:TheAPRMSimulatedThermalPowerTripSetpointis0.63(W)+61.4%withW=40,theTripSetpointis86.6%.Thelowestlistedpowerwhichexceedsthisis87%.AIsplausible,misunderstandingofhowtripsetpointsworkCIsplausible,andismiscalculatedwithW=54(coreflow)DIsplausible,113.5%isthehighclampvaluefortheAPRMSTPtripSetpointQuestion40InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31527User-DefinedID:R40CrossReferenceNumber:NEWTopic:APRMTripsetpointNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoAVERAGEPOWERRANGEMONITOR/LOCALPOWERRANGEMONITORSYSTEM:CorefloweffectsonAPRMtripsetpointsNoreferencewillbeprovided.ILOEXAMPage:75of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion40Table-ItemLinksPlantProcedures03D101NUREG1123KACatalogRev.2215005K5.053.6/3.6CorefloweffectsonAPRMtripsetpointsILOEXAMPage:76of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO41ID:R41Points:1.00Whileoperatingat100%CTP,aStationBlackoutoccurs.NOhighpressurefeedsystemsareoperating.Div1ESFbatteriesexperienceafault,andDiv1DCdistributionisLOST.1D56,RCICLOGICBUSPOWERFAILURE,alarms.WhichstatementbelowdescribestheeffectthatthelossofDiv1ESFDCdistributionhasonlevelcontrol?A.Allinjectionsourceswillbelost.B.HPCIsystemmustbeusedtocontrolRPVlevel.C.RHRSWtoRHRX-connectmustbeusedtomaintainlevel.D.RCICcanbeusedforinjectionbutmustbecontrolledinmanualfromtheControlRoom.Answer:BAnswerExplanationHPCIispoweredfromDiv2DC.RCICispoweredfromDiv.1.AIsplausible,SBOresultsinlimitedinjectionsourcesCIsplausible,aSBOwouldresultinnopowertoRHRSWDIsplausible,undercertainlogicfailuresRCICwillstillfunctionQuestion41InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31568User-DefinedID:R41CrossReferenceNumber:315-0143-A014-004Topic:RCIC-SBONumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeoftheeffectthatalossormalfunctionoftheREACTORCOREISOLATIONCOOLINGSYSTEM(RCIC)willhaveonfollowing:ReactorwaterlevelILOEXAMPage:77of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion41Table-ItemLinksPlantProcedures20.300.SBO01D56NUREG1123KACatalogRev.2217000K3.013.7/3.7ReactorwaterlevelILOEXAMPage:78of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO42ID:R42Points:1.00Aplanttransienthasoccurred,andADSwasallowedtoautomaticallyinitiate.Thefollowingplantconditionsexist:Drywellpressure2.8psig(rising)RPVpressure724psig(lowering)RPVwaterlevel28inches(lowering)RHRPumpsallrunningCoreSprayPumpsallrunningADSinitiatedGiventheaboveconditions,whichofthefollowingactionswouldcausetheADSvalvestoclose?A.RecoveringRPVlevelaboveLevel1B.DepressingtheDrywellPressureResetpushbuttonC.DepressingtheADSTimerLogicresetpushbuttonsD.PlacingtheADSInhibitSwitchestothe"Inhibit"positionAnswer:CAnswerExplanationDepressingtheADStimerresetpushbuttonswilldeenergizetheK6B/K7Brelays,resetingADSlogic,causingtheADSvalvestoclose.AlldistractorsshowamisunderstandingofADSlogic.Question42InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31569User-DefinedID:R42CrossReferenceNumber:315-0142-0004-003Topic:ADSNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeofAUTOMATICDEPRESSURIZATIONSYSTEMdesignfeature(s)and/orinterlockswhichprovideforthefollowing:ADSlogiccontrolILOEXAMPage:79of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion42Table-ItemLinksPlantProcedures23.60123.201NUREG1123KACatalogRev.2218000K4.033.8/4ADSlogiccontrolILOEXAMPage:80of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO43ID:R43Points:1.00Theplantisoperatingatpowerwhenitisdiscoveredthatamis-calibratedinstrumentwasusedtosettheHighDrywellPressureinstrumentationsetpoint.WhichofthefollowingGroupisolationswouldbeimpactedbythiserror?Group1-MSIV&DrainsGroup10-RWCUInbdGroup2-RxSampleGroup11-RWCUOutbdGroup3-RHRGroup12-TWMSGroup4-SDC/HDSprayGroup13-DWSumpsGroup5-CSSGroup14-PCVentGroup6-HPCIGroup15-TIPGroup7-HPCIVacBkrGroup16-PCPressContGroup8-RCICGroup17-RRSSeals/PCRMSIsolGroup9-RCICVacBkrGroup18-DWPneumaticsA.Groups1,3,7,9,12,13,14,15,18,B.Groups2,3,7,9,11,12,13,14,15,18C.Groups2,3,5,7,9,12,13,14,15,16,17,18D.Groups2,4,5,7,9,12,13,14,15,16,17,18Answer:CAnswerExplanationTheautomaticclosureofvariousClassBvalvespreventsthereleaseofsignificantradioactivematerialfromthePrimaryContainment.Thesevalvesarenotneededforasafeshutdownoftheplant.A.isincorrect;MSIVanddrainswillnotisolateonahighdrywellpressuresignal.B.isincorrect;RWCUwillnotisolateondrywellpressure.D.isincorrect;SDC/HDSpraywillnotisolateondrywellpressure.ILOEXAMPage:81of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion43InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

6Difficulty:4.00SystemID:31570User-DefinedID:R43CrossReferenceNumber:NEWTopic:Groupisolation-DrywellpressureNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-KnowledgeoftheeffectthatalossormalfunctionofthefollowingwillhaveonthePRIMARYCONTAINMENTISOLATIONSYSTEM/NUCLEARSTEAMSUPPLYSHUT-OFF:ContainmentinstrumentationQuestion43Table-ItemLinksPlantProcedures23.42729.ESP.01NUREG1123KACatalogRev.2223002K6.053.0/3.3ContainmentinstrumentationILOEXAMPage:82of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO44ID:R44Points:1.00RCICSteamLinePressure-Lowsignalshavebeenreceivedfromthefollowinginstruments:E5150-N058AE5150-N058BE5150-N058CBasedonthesesignals,whatisthestatusofRCIC?A.Inanormalstandbylineup.B.IsolatedwithE5150-F007,RCICSteamLineInboardValve,shut.C.IsolatedwithE5150-F008,RCICSteamLineOutboardValve,shut.D.IsolatedwithbothE5150-F007,RCICSteamLineInboardValve,andE5150-F008,RCICSteamLineOutboardValve,shut.Answer:CAnswerExplanationThetripofinstrumentsA&CcausestheclosureofE5150-F008.A.isincorrectsincethetripofA&CorB&Dwouldcauseavalveclosure.B.isincorrectsinceB&DwouldhavetobetrippedtocloseE5150-F007.D.isincorrectsinceall4instrumentswouldhavetobetrippedtoclosebothE5150-F007andF008.Question44InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.50SystemID:31287User-DefinedID:R44CrossReferenceNumber:NEWTopic:PCIS-RCICNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Abilitytopredictand/ormonitorchangesinparametersassociatedwithoperatingthePRIMARYCONTAINMENTISOLATIONSYSTEM/NUCLEARSTEAMSUPPLYSHUT-OFFcontrolsincluding:ValveClosuresILOEXAMPage:83of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion44Table-ItemLinksPlantProcedures23.601NUREG1123KACatalogRev.2223002A1.023.7/3.7ValveclosuresILOEXAMPage:84of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO45ID:R45Points:1.00DuringnormalpoweroperationanSRVfailsopen.WhydoesFeedWaterLevelControlmaintainRPVwaterlevelatalowerleveluntiltheSRVisclosed?A.Feedwaterflowrises,butnotenoughtocompensatefortheadditionalsteamloss.B.Feedwaterflowlowerstoanticipatelevelswell.C.Feedwaterflowlowerstomatchindicatedsteamflow.D.Feedwaterflowlowerstomatchactualsteamflow.Answer:CAnswerExplanationSinceFWControldoesnotsensetheSRVsteamflow,indicatedsteamflowlowers.FWControlreducesfeedflowtomatchindicatedsteamflow.ThisresultsinRPVlevellowering.ThelowerRPVlevelcreatesaleveldeviation,andfeedflowisraiseduntilRPVlevelisstable,butatalowerlevelthanbeforethetransient.A.ThisisaplausibleconditionbutfeedwaterflowwouldlowertomatchindicatedsteamflowB.ThisisaplausibleconditionbutfeedwaterflowwouldlowerduetolevelswellandlowerindicatedsteamflowD.ThisisaplausibleconditionbutsteamflowthruSRVisnotseenbyFeedwaterControlSystemQuestion45InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31626User-DefinedID:R45CrossReferenceNumber:NEWTopic:SRVindicationsNumField1:LOKLNumField2:10CFR55.41(b)5TextField:ILO2013dougComments:KA-Abilitytopredictand/ormonitorchangesinparametersassociatedwithoperatingtheRELIEF/SAFETYVALVEScontrolsincluding:Indicatedvs.actualsteamflowILOEXAMPage:85of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion45Table-ItemLinksPlantProcedures23.10720.000.25NUREG1123KACatalogRev.2239002A1.093.1/3.3Indicatedvs.actualsteamflow:Plant-SpecificILOEXAMPage:86of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO46ID:R46Points:1.00Withreactorpowerat100%,theRFPAcontrollershiftstoEMERGENCYBYPASSmode.HowdoesRPVlevelrespond,andwhatactionsareneededtorestorelevelcontrol?A.Levellowers.Lowerrecircflowandinsertcramarraytoallowcapacityoffeedwatertoturnlevel.B.Levellowers.TakemanualcontrolofRFPBtoraiseFeedFlowandrestorelevel.C.Levelwillnotchange.TakemanualcontrolofRFPA,andcontrolspeedallowingRFPBtocontrollevelasnecessary.D.Levelwillnotchange.TakemanualcontrolofRFPB,andmonitorforchangescontinuouslyuntilcontrollerisrepaired.Answer:CAnswerExplanationLeveldoesnotchange.AOP20.107.01directsplacingtheaffectedRFP(A)tomanual,andcontrollingspeedasnecessarytoallowunaffectedRFP(B)tocontrollevel.A.Functionalmisconception-RFPwillnotlosesignal,ifitdidthiswouldbeappropriateB.Functionalmisconception-RFPwillnotlosesignalsolevelwillnotlower,controllerinmanualD.Functionalmisconception-Incorrectaction,unaffectedRFPshouldremaininautoQuestion46InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31627User-DefinedID:R46CrossReferenceNumber:NEWTopic:DCSFailureNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013dougComments:KA-Abilityto(a)predicttheimpactsofthefollowingontheREACTORWATERLEVELCONTROLSYSTEM;and(b)basedonthosepredictions,useprocedurestocorrect,control,ormitigatetheconsequencesofthoseabnormalconditionsoroperations:LossofcontrollersignaloutputILOEXAMPage:87of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion46Table-ItemLinksPlantProcedures20.107.0123.107NUREG1123KACatalogRev.2259002A2.063.3/3.4LossofcontrollersignaloutputILOEXAMPage:88of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO47ID:R47Points:1.00SGTShasstartedonanautomaticsignal.SGTSD1flowis1600scfm,and8D35,DIV1SGTSAirFlowStopped,hasalarmed.Lowairflowcouldbecausedbywhichofthefollowing?A.Div1SGTS24kWHeatertripped.B.SGTSPre-Filterdifferentialpressureis1.3"watergauge.C.BreakerforT46-C003,Div1SGTSExhaustFanhastripped.D.T46-F003A,Div1SGTSExhaustFanInletVortexDamper,malfunctioning.Answer:DAnswerExplanationSGTSExhaustFanInletVortexDampermodulatesonstarttomaintainnormalflowband.Amalfunctioncouldcauseittomaintainalowerthannormalflow.PlausibleDistractorsA.heaterwilltriponalarm.Ifwatercollectsinthecharcoalcouldrestrictflow.B.couldlowerflow,butvortexdamperwouldmaintainflow.C.ifexhaustfantrips,flowwouldbe0.Question47InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31628User-DefinedID:R47CrossReferenceNumber:NEWTopic:SGTSmalfunctionNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-AbilitytomonitorautomaticoperationsoftheSTANDBYGASTREATMENTSYSTEMincluding:ValveoperationILOEXAMPage:89of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion47Table-ItemLinksPlantProcedures08D3523.404NUREG1123KACatalogRev.2261000A3.033/2.9ValveoperationILOEXAMPage:90of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO48ID:R48Points:1.00MaintenancehascompletedworkonBus72Salternatesupplybreaker,72SPos1C.Postmaintenancetestinghasbeencompletedandthebreakerhasbeenreleasedforservice.Afailurecauses72SPos1B,Bus72Snormalsupplybreaker,totripOPEN.Thefollowingindicationsareobserved:72SPos1CIndicatesclosed72SPos1BIndicatestripped9D16,DIVI480VESSBUS72BKRTRIPPEDInalarm72SBusVoltageZero(0)Whathasoccurredtocausetheseindications?A.72Sautothrow-overworkedproperly.B.Breaker72SPos1CwasleftinTESTposition.C.Bus72Sthrow-overmodeselectswitchisinMANUAL.D.Afaultonbus72Spreventedenergizingfromthealternatesupply.Answer:BAnswerExplanationFrom23.300,"TEST-Thispositionisusedfortestingacircuitbreakerforproperoperation.Inthisposition,themaincontactsareseparatedfromthesupplyandload.Thecontrolcircuitandauxiliarycontrolareoperational."Thenormalcontrolcircuitrywouldenergizetheclosingcoilcausingthebreakertoclose.Thenormalclosedindicationswouldbeobservedinthecontrolroom.Thebuswouldnotbepoweredbecausethemaincontactswouldstillbeopen.A.isplausiblebecause72SPos1CindicatesCLOSED.Theexamineemaynotunderstandthatthebusvoltageisfromthebusandnotindependentfrombreakerposition.C.isplausiblebecausethereisanapparentfailureofthealternatesupplytopowerthebusbasedonZerobusvoltage.ThethrowoverswitchinMANUALwouldpreventautothrowover.D.isplausiblebecausesomebuseshavelockoutfeaturesthatpreventenergizingfromanothersourceifthereisafaultonthebus.ILOEXAMPage:91of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion48InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31646User-DefinedID:R48CrossReferenceNumber:NEWTopic:72SPos1CinTESTNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Abilitytomanuallyoperateand/ormonitorinthecontrolroom:Allbreakersanddisconnects(includingavailableswitchyard)Question48Table-ItemLinksPlantProcedures09D1623.300NUREG1123KACatalogRev.2262001A4.013.4/3.7Allbreakersanddisconnects(includingavailableswitchyard):Plant-SpecificILOEXAMPage:92of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO49ID:R49Points:1.00TheRectifier/ChargerandDCbatterybecomedisconnectedfromUPSUnitAduetoafault.LoadsonUPSADistributioncabinetsare________________________.A.lostduetothelossofbatteryback-upB.notaffectedduetostatictransferswitchoperationC.lostduetofailureofRectifier/ChargercausinginternalAClossD.notaffectedsinceBus72Mpos.3D(Normal)isstillenergizedAnswer:BAnswerExplanationCorrectAnswerB-IfallDCpowerislosttoaUPSunit,StaticTransferSwitchoperationwillautomaticallysupplythedistributioncabinetonthatsidefromthealternatepowersupply.PlausibleDistractors:A&CareincorrectsinceStaticTransferSwitchfunctionstomaintainloads.DisincorrectbecauseACsupplytotherectifierisdeenergized.Question49InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

4Difficulty:4.00SystemID:31648User-DefinedID:R49CrossReferenceNumber:NEWTopic:UPSfaultsNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-UninterruptablePowerSupply(A.C./D.C.):GenericAbilitytodetermineoperabilityand/oravailabilityofsafetyrelatedequipmentILOEXAMPage:93of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion49Table-ItemLinksPlantProcedures23.308.01NUREG1123KACatalogRev.2G2.2.373.6/4.6Abilitytodetermineoperabilityand/oravailabilityofsafetyrelatedequipment262002UPS(AC/DC)ILOEXAMPage:94of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO50ID:R50Points:1.00Theplantisoperatingat100%powerwiththeACDistributionSystemalignednormally.LossofBattery2B-2resultsinalossofcontrolpowerto480vESFBus72F.Whichofthefollowingwouldbetheimpactofthiscondition?A.480vMCC72CFtransferstoAlternate.B.NorthRWCUPumptripsandthesystemisolates.C.PowerislosttoDivision2SGTSfansanddampers.D.Theautomaticthrow-overfunctionof480vMCC72CFisdisabled.Answer:DAnswerExplanation20.300.72F,Caution2,states"LossofDiv2Battery2B-2resultsinlossofcontrolpowertoBus72FwhichpreventsautotransferofMCC72CF,andrequirescompliancewithTechnicalSpecifications."PlausibleDistractors:A.wouldbetrueif72CFwasalignedto72F(72Cnormally).B.isincorrectsinceNRWCUPumpisnotaffectedbytheDClossandispoweredfrom72Cwhichisstillenergized.C.isincorrectsinceDiv2SGTSisnotaffectedbytheDClossandispoweredfrom72Fwhichisstillenergized.Question50InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

5Difficulty:4.00SystemID:31666User-DefinedID:R50CrossReferenceNumber:NEWTopic:DCdistributionNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Knowledgeofthephysicalconnectionsand/orcause-effectrelationshipsbetweenD.C.ELECTRICALDISTRIBUTIONandthefollowing:A.C.electricaldistributionILOEXAMPage:95of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion50Table-ItemLinksPlantProcedures20.300.72FNUREG1123KACatalogRev.2263000K1.013.3/3.5A.C.electricaldistributionILOEXAMPage:96of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO51ID:R51Points:1.00Theplantisoperatingat100%power.EDG12isrunningparalleledtoBus64Cforasurveillancerun.Thefollowingeventsthenoccur:9D15,D14160VESSBus64CBreakerTripped,alarms.64C-Pos.C6tripsopen.64C-Pos.C8tripsopen.Bus64CpowerONlightgoesOFF.Basedontheseindicationswhichofthefollowingistrue?A.NorthRRMGSetscooptubepositionerislocked.B.CRSshouldenter20.307.01,EmergencyDieselGeneratorFailure.C.AhalfscramisreceivedonDivision1ifRPSAisonnormalsupply.D.RBCCWisnotaffectedasnoneofthepumpsarepoweredfrom72C.Answer:AAnswerExplanation20.300.64C,Note8states"TheNorthRRMGScoopTubePositionerwillautomaticallylockonlossofpowertotheScoopTubePositionerandduetoMPU4transfer."C.RPSAlternatesupplyis72C.D.NRBCCWpumpispoweredfrom72C.B.notappropriateasbushastripped;notanEDGissue.Question51InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31706User-DefinedID:R51CrossReferenceNumber:NEWTopic:Lossof64CBusNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-KnowledgeoftheeffectthatalossormalfunctionoftheEMERGENCYGENERATORS(DIESEL/JET)willhaveonfollowing:Majorloadspoweredfromelectricalbusesfedbytheemergencygenerator(s)ILOEXAMPage:97of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion51Table-ItemLinksPlantProcedures20.300.64CNUREG1123KACatalogRev.2264000K3.034.1*/4.2*Majorloadspoweredfromelectricalbusesfedbytheemergencygenerator(s)ILOEXAMPage:98of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO52ID:R52Points:1.00Theplantisexperiencingalossofairevent.Stationairheaderis73psigwithallStationAirCompressorsrunning.Atthistime,airsupplytoPCMSisolationvalvesis____________________________________.A.providedbyStationAirB.providedbyInstrumentAirC.providedbyNon-InterruptibleAirD.isolatedduetolowsupplyairpressureAnswer:CAnswerExplanationCorrectAnswerC-Enclosuresin20.129.01showPCMSisanNIASload.Atthisairpressure,allairsuppliesareisolatedexceptNIAS.PlausibleDistractors:A-Knowledgemisconception-NIASloadB-Knowledgemisconception-NIASloadD-Knowledgemisconception-NIASloadQuestion52InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

4Difficulty:3.00SystemID:31707User-DefinedID:R52CrossReferenceNumber:NEWTopic:StationAirLossNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Knowledgeof(INSTRUMENTAIRSYSTEM)designfeature(s)andorinterlockswhichprovideforthefollowing:Cross-overtootherairsystemsILOEXAMPage:99of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion52Table-ItemLinksPlantProcedures20.129.0123.129NUREG1123KACatalogRev.2300000K4.023/3Cross-overtootherairsystemsILOEXAMPage:100of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO53ID:R53Points:1.00Theplantisoperatingat100%powerwithallequipmentavailablewhenalarm5D9,TBCCWHeatExchDischTempHigh/Lowisreceived.Thefollowingconditionsareobserved:P43-R803,TBCCWHXTemperature,indicates88°F.P43-K817,TBCCWTCVP43-F402Ctrlr,isinAuto.P43-F402indicatesFULLOPEN.Whichofthefollowingactions,iftaken,wouldcorrectthisabnormalTBCCWsystemcondition?A.SlowlyopenP4100-F080A(B),TBCCWHXGSWInletValve,andopenP4300-F601(F602),TBCCWHXInletIsoValve,forthestandbyTBCCWHeatExchanger.B.CloseP4100-F146,GSWRtrnFromTBCCWTCVRestrictingOrificeIsoVlvandthrottleP4100-F147,GSWRtrnFromTBCCWRestrictingOrificeBypassVlv.C.VerifyclosedP4300-F601(F602),TBCCWHXInletIsoValve,andslowlyopenP4100-F080A(B),TBCCWHXGSWInletVlvforthestandbyTBCCWHeatExchanger.D.PlaceP43-K817inMANUALandincrementallyadjustTBCCWOutletTemperaturebycontrollingP43-F402,TBCCWHXInletIsoValve,inmanual.Answer:AAnswerExplanationCorrectAnswerA-SOPdirectionistovalveinthecoolingwater(GSW)andthenopentheinletisolationvalvetoplaceanotherHXinservice.Distractors:B-plausiblebecauseitappearstoapplymorecoolingwater.C-plausible--correctvalves,buttheyarenotinthecorrectorderofoperation.D-plausible-ifthecontrollerhadfailedinAUTO.Thereisnoindicationofthis.ILOEXAMPage:101of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion53InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:32926User-DefinedID:R53CrossReferenceNumber:NEWTopic:LossofTBCCWNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013mcComments:KA-Abilityto(a)predicttheimpactsofthefollowingontheCCWSand(b)basedonthosepredictions,useprocedurestocorrect,control,ormitigatetheconsequencesofthoseabnormaloperation:High/lowCCWtemperatureQuestion53Table-ItemLinksPlantProcedures23.12805D009NUREG1123KACatalogRev.2400000A2.032.9/3High/lowCCWtemperatureILOEXAMPage:102of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO54ID:R54Points:1.00Theplantisat86%powerwithrodpatternadjustmentsinprogresswhenthefollowingindicationsarereceived:3D80,ControlRodDrift,alarms.Nocontrolrodpositionsindicatedonfourroddisplay.NoREDfulloutorGREENfullinlightslitonfullcoredisplay.Basedontheseindications,whatactionsareappropriate?A.Enter20.106.07,ControlRodDrift.B.Stopanycontrolrodmovementsinprogress.C.PlacetheReactorModeSwitchtoSHUTDOWN.D.Substituterodpositionsforcontrolrodswithbadindicationsper23.608,RodWorthMinimizer.Answer:BAnswerExplanationCorrectAnswerBTheseconditionsindicateatotallossofRPIS.Thefirstactionistostopanyrodmotioninprogress.PlausibleDistractors:A.isincorrectsincethedriftalarmisduetolossofrodpositionsforallrods.C.isincorrectsincethereisnosafetyreasontoshutdownthereactoratthistime.D.isincorrectsinceitisalossofallrodpositionindication.Question54InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

5Difficulty:3.00SystemID:31288User-DefinedID:R54CrossReferenceNumber:NEWTopic:LossofRPISNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013dougComments:KA-AbilitytomonitorautomaticoperationsoftheCONTROLRODANDDRIVEMECHANISMincluding:ControlRodPositionILOEXAMPage:103of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion54Table-ItemLinksPlantProcedures20.106.08NUREG1123KACatalogRev.2201003A3.013.7/3.6ControlrodpositionILOEXAMPage:104of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO55ID:R55Points:1.00AplantstartupisinprogresswithReactorPowerat9%whentheFeedwaterControlSystemSteamFlowdigitaloutputfailsdownscale.Whichoneofthefollowingdescribestheeffectonrodmovement?A.TheRWMwillenforcerodmovementatallpowerlevels.B.Rodblockswillonlybegeneratedatpowerlevelsabove27%.C.TheRWMmustbebypassedtoallowrodmovementuntilpowerreaches12%.D.RodmovementwouldbepreventedbyawithdrawerrorenforcedbytheRWM.Answer:AAnswerExplanationTheRWMwillenforcerodmovementbasedontheselectedrodsequenceuptothelowpowersetpoint(LPSP).LPSPisineffectuntilfeedwaterflowis>12.275%andsteamflowis>12.25%.Withthesteamflowfailedlow,theLPSPwouldneverbereached.Cisplausible,LPSPisenforceduntilsteamflowis>12.25%notpower.Bisplausible,rodblockswillbeenforcedatallpowerlevelswithafailedsteamflowoutput.Displausible,WEwouldbeenforcedforincorrectlyselectedrodbelowtheLPSP.Question55InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31587User-DefinedID:R55CrossReferenceNumber:NEWTopic:RWM-setpointsNumField1:LOKHNumField2:10CFR55.41(b)6TextField:ILO2013mikeComments:KA-KnowledgeoftheeffectthatalossormalfunctionoftheRODWORTHMINIMIZERSYSTEM(RWM)(PLANTSPECIFIC)willhaveonfollowing:ReactormanualcontrolsystemILOEXAMPage:105of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion55Table-ItemLinksPlantProcedures23.608NUREG1123KACatalogRev.2201006K3.013.2/3.5Reactormanualcontrolsystem:P-Spec(Not-BWR6)ILOEXAMPage:106of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO56ID:R56Points:1.00DuringanEECWSystemsurveillancewiththeplantoperatingat100%power,P4400-F606B,EECWSupplytoDiv2EECWDrywellEquipmentIsolationvalvesuddenlycloses.Whichofthefollowingdescribestheimpactofthisfaultandanyrequiredoperatoractions?A.RRMGSetbearingdamagecouldoccur.TripRRPumpB.B.RRPumpmotordamagecouldoccur.Ifflowcannotberestoredwithin2minutestripRRPumpB.C.RRMGSetNorthCoolingFanairtemperaturescouldincrease.IfMGsetairtemperatureexceeds260°F,tripRRPumpB.D.RRPumpsealdamagecouldoccur.Ifsealcavitytemperatureexceeds180°F,RecircPumpBmustbeshutdown.Answer:BAnswerExplanationWithoutcooling,RRMGsetshouldbetrippedwithin2minutes.Motordamagemayoccur.A.isplausible,butcoolingwouldstillbeavailabletoMGsetbearings.C.isplausible,butcoolingwouldstillbeavailabletoMGsetcoolingunit.D.isplausible,SealTemperaturealarmsat160°Fandpumpshouldbetrippedandisolatedat>200°F.Question56InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31588User-DefinedID:R56CrossReferenceNumber:315-0167-B007-005Topic:EECWValveFailureNumField1:LOKHNumField2:10CFR55.41(b)4TextField:ILO2013mikeComments:KA-KnowledgeoftheoperationalimplicationsofthefollowingconceptsastheyapplytoRECIRCULATIONSYSTEM:Pump/motorcoolingILOEXAMPage:107of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion56Table-ItemLinksPlantProcedures20.127.0123.138.0103D14603D161NUREG1123KACatalogRev.2202001K5.032.7/2.7Pump/motorcooling:Plant-SpecificILOEXAMPage:108of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO57ID:R57Points:1.00ThePlantisoperatingat100%when1D66,STEAMLEAKDETECTIONAMBIENTTEMPHIGH,alarms.ItisdeterminedthattheReactorWaterCleanupPumpRoomAtemperatureisreading177°F.TheCRNSOobservestheP602panelandnoticesthatG3352-F004,RWCUSUPPLYOTBDISOVLV,isCLOSED.Allotherindicationsarenormal.Giventheaboveconditions,whichofthefollowingstatementsdescribesALLoftheexpectedoperatorresponses?A.CloseG3352-F119RWCUSUPPLYSUCTISOVLVandG3352-F220RWCUTOFWOTBDCNTMISOVLVandtripRWCUpumps.B.CloseG3352-F001RWCUINBDISOVLVandG3352-F220RWCUTOFWOTBDCNTMISOVLV.C.CloseG3352-F119RWCUSUPPLYSUCTISOVLVandG3352-F220RWCUTOFWOTBDCNTMISOVLV.D.CloseG3352-F001RWCUINBDISOVLVandG3352-F220RWCUTOFWOTBDCNTMISOVLVandtripRWCUpumps.Answer:DAnswerExplanationRWCUAreaTemperatureHigh>175°FwillcauseautoclosureofG3352-F001,F004,F220andresultinalowflowRWCUpumptrip.Withtemperaturereading177°FallvalvesshouldhaveisolatedandpumpsshouldhavetrippedwiththeclosureofG3352-F004causinglowflowtrip.Isplausible,G3352-F119doesnotreceiveanautoclosuresignalforhighroomtempA.Isplausible,G3352-F001,F220willneedtobeisolatedbutpumpmustalsobetrippedB.Isplausible,G3352-F119doesnotreceiveanautoclosuresignalforhighroomtempC.ILOEXAMPage:109of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion57InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31606User-DefinedID:R57CrossReferenceNumber:NEWTopic:RWCUvalveisolationsNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-Abilityto(a)predicttheimpactsofthefollowingontheREACTORWATERCLEANUPSYSTEM;and(b)basedonthosepredictions,useprocedurestocorrect,control,ormitigatetheconsequencesofthoseabnormalconditionsoroperations:ValveclosuresQuestion57Table-ItemLinksPlantProcedures01D6623.707NUREG1123KACatalogRev.2204000A2.102.7/2.8ValveclosuresILOEXAMPage:110of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO58ID:R58Points:1.00Controlrodoperabilitysurveillanceisinprogressatfullpower.WithControlRod22-15selectedat48,aninsertsignalisapplied,andthefollowingisdisplayedontheRWM:SR22-15FFSelfTestOKModeOPERATEWhatdotheseindicationsmeantotheoperator?A.RPISdigitalinputsarenotvalidatthisposition.B.RodWorthMinimizerhasblockedrodmovement.C.RPISpositionisasubstitutedvalueforthisposition.D.RPISpositionisbypassedintheRodWorthMinimizer.Answer:AAnswerExplanationIfeitherdigitoftheRPISinputpositionisinoperable,an"FF"willbedisplayed.B.Functionalmisconception-RWMisautomaticallybypassed.Cannotbetrueatfullpower.C.Functionalmisconception-Iftherodhasasubstitutedposition,thepositionindicationwillbedisplayedinblueonIPCSdisplay.D.Functionalmisconception-IftherodisbypassedinRWM,itsI.D.willbedisplayedusinginversevideoontheRWM.Question58InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

2Difficulty:2.00SystemID:31289User-DefinedID:R58CrossReferenceNumber:NEWTopic:RPIS-RWMNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-Knowledgeofthephysicalconnectionsand/orcause-effectrelationshipsbetweenRODPOSITIONINFORMATIONSYSTEMandthefollowing:RWMILOEXAMPage:111of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion58Table-ItemLinksPlantProcedures23.608NUREG1123KACatalogRev.2214000K1.013/3.2RWM:Plant-SpecificILOEXAMPage:112of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO59ID:R59Points:1.00TheplantisoperatinginMode3withDivision1RHRinShutdownCoolingmodewhenRPVlevelbeginsloweringduetounknownreasons.Thefollowingindicationsareobserved:NarrowrangeRPVlevelshowa6"differencebetweeninstrumentsWiderangeshowsa20"differencebetweenindicatorsOccasionalnotchingisoccurringonallinstrumentsWhichofthefollowingoperatoractionsshouldbetakenatthistime?A.Insertallcontrolrodsnotfullyinserted.B.VerifyMainTurbineBypassValvesareclosed.C.VerifyReferenceLegBackfillisinservicewithproperflowrate.D.IsolateSDCbyclosingShutdownCoolingSuctionIsolationValvesE1150-F008andE1150-F009.Answer:DAnswerExplanation22.000.02P&L3.4.1states"Iflevelanomalies(levelindicationdeviatesmorethan5"onnarrowrangeindication,22"onwiderangeindicationornotchingoccurs)andanunexplainedlossofRPVleveloccurs,takeimmediateactiontoisolateSDCbyclosingE1150-F008,RHRSDCOtbdSuctionIsoVlv,andE1150-F009,RHRSDCInbdSuctionIsoVlv,andreferto20.205.01,"LossofShutdownCooling."A.plausibleifthoughtistoensurereactorisfullyshutdown.B.plausibleifthoughtisthatfailedopenTBVsarecausingRPVlevelloss.C.plausibleduetomalfunctionofbackfillcausinglossoflevelindications.Question59InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31726User-DefinedID:R59CrossReferenceNumber:NEWTopic:StartupP&LNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013dougComments:KA-Abilitytomanuallyoperateand/ormonitorinthecontrolroom:RecordersILOEXAMPage:113of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion59Table-ItemLinksPlantProcedures22.000.02NUREG1123KACatalogRev.2216000A4.013.3/3.1RecordersILOEXAMPage:114of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO60ID:R60Points:1.00TheplanthasexperiencedaLOCA.Currentplantconditionsareasfollows:Drywellpressure15.7psigToruspressure9.9psigDrywellTemperature230°FTorusTemperature120°FWhichsystem/subsystemwouldthecrewusetolowerdrywellpressureunderthesepost-LOCAconditions?A.TorusHardenedVentsB.DrywellSprayC.TorusSprayD.RBHVACAnswer:BAnswerExplanation23.205SystemDescriptiondescribesfunctionofDrywellSprayA.Functionmisconception;notusedforthisconditionC.Functionmisconception;doesnotsprayindrywellorlowerdrywellpressureD.Functionmisconception;notusedforthisconditionQuestion60InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31746User-DefinedID:R60CrossReferenceNumber:NEWTopic:RHRContaimentSprayNumField1:LOKLNumField2:10CFR55.41(b)8TextField:ILO2013doug/PATComments:KA-RHR/LPCI:CMTSprayMode-Knowledgeofsystempurposeand/orfunctionILOEXAMPage:115of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion60Table-ItemLinksPlantProcedures23.205NUREG1123KACatalogRev.2G2.1.273.9/4.0Knowledgeofsystempurposeandorfunction226001RHR/LPCI:ContainmentSpraySystemModeILOEXAMPage:116of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO61ID:R61Points:1.00ThedesignfeatureinMainandReheatSteamthatensuresTurbineisolationfromhighenergycondensatecontainedintheheatershellsandpreventswaterinductionis:A.FeedwaterheateremergencydrainvalvesopenuponaTurbinetriptorelieveheaterlevelsandpreventwaterinductionintotheturbine.B.ExtractionSteamSystemInletDrainValvesandtheirrespectiveisolationvalvesopenifeithertheairoperatedcheckvalvesareclosedorthemotoroperatedisolationvalvesareoutofthefullopenposition.C.ExtractionSteamMotorOperatedandAirOperatedInletValvestoFeedwaterHeaters3,4,5,and6closeuponreceiptofaHigh-HighlevelsignalfromtheirrespectiveHeaters

.D.SteamisextractedfromvariouspointsontheHighPressureandLowPressureTurbinesandisdirectedtotheFeedwaterHeaters.Answer:CAnswerExplanationExtractionSteamMotorOperatedandAirOperatedInletValvestoFeedwaterHeaters3,4,5,and6areinterlockedtocloseuponreceiptofaHigh-HighlevelsignalfromtheirrespectiveHeaters.IftheTurbinetrips,interlockswillalsocausetheAirOperatedValvestoclose.TheseinterlocksensureTurbineisolationfromthehighenergycondensatecontainedintheheatershellsandpreventwaterinduction.AspressureintheTurbinedecreasesfollowingaturbinetrip,thiscondensatecouldflashandcausetheTurbinetooverspeed.AlsowaterfromaleakingheatertubeispreventedfrombackinguptotheTurbineA.isplausible,butdoesnotpreventwaterinduction.B.isplausible,butpreventscondensateinlines.D.isplausible,butisthesystempurpose.Question61InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:31747User-DefinedID:R61CrossReferenceNumber:NEWTopic:MainSteamInterlocksNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-KnowledgeofMAINANDREHEATSTEAMSYSTEMdesignfeature(s)and/orinterlockswhichprovideforthefollowing:OverpressurecontrolILOEXAMPage:117of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion61Table-ItemLinksPlantProcedures23.108NUREG1123KACatalogRev.2239001K4.073.7/3.7OverpressurecontrolILOEXAMPage:118of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO62ID:R62Points:1.00Aplantstartupisinprogress.Reactorpoweris50%,andtheNorthRFPisfeedingtheRPV.LowMainTurbinelubeoilpressurethencausesaMainTurbineTrip.Tenminutesafterthetrip,theNorthReactorFeedPumpis

.A.runningonlowpressuresteamB.runningonhighpressuresteamC.trippedduetothelossoflowpressuresteamD.trippedduetothelossofhighpressuresteamAnswer:BAnswerExplanationLPSteamfromtheMSRsuppliestheRFPTwhiletheturbineisoperatingat50%power.RFPTsteamsupplyautomaticallyshiftsfromlowpressuresteamtohighpressuresteamwheninsufficientLPsteamisavailable.TenminutesafteraTrubineTrip,thereisnotenoughLPpressuresteamandtheHPsteamwilltakeover.A.isplausible,butafter2minuteslowpressuresteamfromtheMSRisexhausted.C.isplausible,buttheRFPTwillswitchovertoHPsteam.D.isplausible,buttheHPsteamwillcontinuetooperatetheRFPT.Question62InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31306User-DefinedID:R62CrossReferenceNumber:NEWTopic:RFP-MTinterelatioshipNumField1:LOKHNumField2:10CFR55.41(b)5TextField:ILO2013doug/ptComments:KA-KnowledgeoftheeffectthatalossormalfunctionoftheMAINTURBINEGENERATORANDAUXILIARYSYSTEMSwillhaveonfollowing:ReactorFeedwaterPumpILOEXAMPage:119of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion62Table-ItemLinksPlantProcedures23.10723.10920.000.21NUREG1123KACatalogRev.2245000K3.052.7/2.8Reactorfeedwaterpump:Plant-SpecificILOEXAMPage:120of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO63ID:R63Points:1.00Plantisoperatingat65%powerwhenthetheCRNSOnotesthefollowingconditions:6D15,OffGasHydrogenHigh,alarms.Hydrogenconcentrationindicates2.5%ontheOGHydrogenConcentrationRecorder.LocalreadingsattheHydrogenAnalyzerPanelare2.5%ChannelAand2.4%ChannelB.Thein-servicerecombinertemperatureis635°Fandlowering.Giventheseconditions,whichofthefollowingactionsshouldthecrewtake?A.CommenceaplantshutdowntoHotStandby.B.Placethestandbyrecombinertraininservice.C.ImmediatelyplacetheReactorModeSwitchinShutdown.D.ReducereactorpowertomaintainreleaseratebelowODCMlimits.Answer:BAnswerExplanation20.712.01actionforhydrogen>1%but<4%.A.isactionforoffgasexplosion.C.isnotaconservativeactionD.isactionforhighcharcoalbedtemperatures.Question63InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31748User-DefinedID:R63CrossReferenceNumber:NEWTopic:Off-GasHydrogenNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013dougComments:KA-Abilitytopredictand/ormonitorchangesinparametersassociatedwithoperatingtheOFFGASSYSTEMcontrolsincluding:HydrogengasconcentrationILOEXAMPage:121of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion63Table-ItemLinksPlantProcedures20.712.01NUREG1123KACatalogRev.2271000A1.133.2/3.7HydrogengasconcentrationILOEXAMPage:122of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO64ID:R64Points:1.00Alossof4160vBus68Koccursduetoabuslockout.Howisfireheaderpressuremaintainedinthiscondition?A.FireJockeyPumpcontinuestorun.B.ElectricFirePumpstartsonlowpressure.C.DieselFirePumpstartsonlowpressure.D.Headerpressuredegradeswithnopumpsavailable.Answer:AAnswerExplanationLossof68KresultsinlossoftheElectricFirePump(68K).TheFirePumpJockeypumpissuppliedby72Kwhichispoweredby69K.Acommonmisconceptionisthat72Kispoweredfrom68Knot69Kandwouldalsobelostonalossof68K.PlausibleDistractors:BFunctionalmisconception-PowerlosttoElectricFirePump,pumpnotrequiredtostart.CFunctionalmisconception-JockeyPumpcontinuestooperateEFPandDFPnotrequiredDFunctionalmisconception-DFPautostartnotrequiredtomaintainpressureQuestion64InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31749User-DefinedID:R64CrossReferenceNumber:NEWTopic:FireProtectionPumpsNumField1:LOKLNumField2:10CFR55.41(b)7TextField:ILO2013dougComments:KA-FireProtection:Knowledgeofelectricalpowersuppliestothefollowing:PumpsILOEXAMPage:123of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion64Table-ItemLinksPlantProcedures23.501.01NUREG1123KACatalogRev.2286000K2022.9/3.1PumpsILOEXAMPage:124of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO65ID:R65Points:1.00Theplanthasexperiencedanearthquake.Duringthetransientajetpumpbecomesdisplacedduetoafailureofitsholddownbeam.Whatisthepotentialsafetyconcern?A.APRMhighfluxsetpointswillbenon-conservativelyaffected.B.Propercoresubmergencepost-LOCAcannotbemaintained.C.Indicatedcoreflowmaybelowerthanactual.D.Loopjetpumpflowscannotbematched.Answer:BAnswerExplanationAdisplacedJetPumpcouldcausealossoftheabilitytore-floodthecoretoatleast2/3coreheight(designbases)A.isincorrectbecauseAPRMhighfluxsetpointsarerepresentativeofreactorpowerfromtheLPRMsystem,notcoreflow.Itisnotaffected.C.isincorrectbecauseindicatedcoreflowmaybehigherthanactual(AOP).D.isincorrectbecausetheoperatorwillstillhavetheabilitytocontrolRRMGspeedsandloopflows.Question65InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31946User-DefinedID:R65CrossReferenceNumber:NEWTopic:JetPumpFailureNumField1:LOKHNumField2:10CFR55.41(b)3TextField:ILO2013mcComments:KA-KnowledgeoftheeffectthatalossormalfunctionofthefollowingwillhaveontheREACTORVESSELINTERNALS:ReactorRecircILOEXAMPage:125of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion65Table-ItemLinksPlantProcedures23.60520.138.0220.138.02BasesNUREG1123KACatalogRev.2290002K6.033.1/3.2RecirculationsystemILOEXAMPage:126of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO66ID:R66Points:1.00Whatisthebasisfortherequirementsofmakinghi-comannouncementspriortothestartofmajorequipment?A.PotentialelectricalloadimpactB.ProtectionagainstpersonnelinjuriesC.PotentialAutostartsysteminterrelationsD.AlertfieldoperatorstochangingplantconditionsAnswer:BAnswerExplanationPerMOP03,Hi-Comannouncementsshouldbemadepriortostartingorstoppingmajorpiecesofequipment.ThisisbasedonDER-93-0356whereafailureofHPCIsteamsystemrupturediaphragmsresultedinpersonnelinjury.A.Majorpiecesofplantequipmentrequirealargerpowersource(4160kv)andhavethepotentialtocauseanelectricalloadimpactbutisnotarequirement.C.Majorpiecesofplantequipmentcouldhavethepotentialtocausefluctuations(pressure,flow,load)ininterrelatingsystemsbutisnotarequirement.D.Startinglargeequipmenthasthepotentialtochangeplantconditionsbutisnotarequirement.Question66InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31886User-DefinedID:R66CrossReferenceNumber:NEWTopic:PlantannouncementsNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-Knowledgeofcriteriaorconditionsthatrequireplant-wideannouncements,suchaspumpstarts,reactortrips,modechanges,etc.ILOEXAMPage:127of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion66Table-ItemLinksPlantProceduresMOP03-ConductOfOperationsNUREG1123KACatalogRev.2G2.1.143.1/3.1Knowledgeofcriteriaorconditionsthatrequireplant-wideannouncements,suchaspumpstarts,reactortrips,modechanges,etc.ILOEXAMPage:128of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO67ID:R67Points:1.00Theplantisoperatingat100%powerinablackboardconditionwhentheCRNSOnoticesthattheVASdisplayshows3D19asred,theSOERscreendisplayshowsthefollowing:ThisinformationindicatesthattheVASsystemwillincur(1)offunctionalityandwillresultin(2)

.(SeeattachedARP3D19.)A.(1)loss(2)lossofredundancyforonehalfsideofVASI/OB.(1)noloss(2)lossofP601throughP805windowfailuresC.(1)noloss(2)lossofredundancyforonehalfsideofVASI/OD.(1)loss(2)lossofP601throughP805windowfailuresAnswer:DAnswerExplanationILOEXAMPage:129of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROAlarm3D19,AnnunciatorSystemTrouble,indicatesapotentialproblemwiththeVASsystem.TheSOERscreendisplayshowsthatMUXA/Chavebeenlost.Flowchartin3D19indicateslossofVASfunctionalityandlossofannunciationforP601throughP805.AthiswouldbecorrectforatwoMUXfailurebutredundancywouldbelostforonesideofVAS/IOBthiswouldbecorrectforasingleMUXfailurebutP601throughP805wouldremainfunctionalCthiswouldbecorrectforasingleMUXfailureQuestion67InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31887User-DefinedID:R67CrossReferenceNumber:26575Topic:MUXFailuresNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013mikeComments:KA-Abilitytouseplantcomputerstoevaluatesystemorcomponentstatus.Providecopyof3D19forMUXfailures.Question67Table-ItemLinksPlantProcedures03D019NUREG1123KACatalogRev.2G2.1.193.9/3.8AbilitytouseplantcomputertoevaluatesystemorcomponentstatusILOEXAMPage:130of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO68ID:R68Points:1.00HowissystemconfigurationcontrolmaintainedduringaLocalLeakRateTest(LLRT)?A.Testprocedurestepsarefollowedtomaintainsystemconfiguration.B.OperatorTags(whitetag,redlettering)arehungtomaintainsystemconfiguration.C.CautionTags(yellowwithblacklettering)arehungtomaintainsystemconfiguration.D.SystemSupervisorTags(redtag,whitelettering)arehungtomaintainsystemconfiguration.Answer:AAnswerExplanationPerMOP12,CautionTagsshouldnotbeusedtoprovideconfigurationcontrolduringactivitiescoveredbyanotherprocedure(relaytesting,LLRT,etc.).Theprocedureshouldmaintainconfigurationcontrolbywayofprocedurestepsorspecialcontrols.C.IsplausiblebutisprohibitedbyMOP12B.IsplausiblebutisnotpermittedbyMOP12.OperatortaggedequipmentshallnotbeoperatedunderanyconditionD.IsplausiblebutisnotpermittedbyMOP12.SystemSupervisor'stagsshallbeusedexclusivelywhenorderedbytheSystemSupervisor.Question68InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31888User-DefinedID:R68CrossReferenceNumber:638-0101-0101-003Topic:ConfigurationcontrolNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013mikeComments:KA-KnowledgeoftheprocessforcontrollingequipmentconfigurationorstatusILOEXAMPage:131of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion68Table-ItemLinksPlantProceduresMOP12-TaggingandProtectiveBarrierSystemNUREG1123KACatalogRev.2G2.2.143.9/4.3KnowledgeoftheprocessforcontrollingequipmentconfigurationorstatusILOEXAMPage:132of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO69ID:R69Points:1.00WhichoneofthefollowingsituationsisappropriatefortheuseofTemporaryChangeNoticeperMGA04?A.Changetheintentofasystemoperatingproceduresection.B.Changetheapprovalrequirementforanadministrativeprocedure.C.Correctacomponentidentificationinasystemoperatingprocedure.D.Addacorrectiveactiontopreventrecurrencetoanexistingprocedure.Answer:CAnswerExplanationThisisallowedbyMGA04.Aisplausible,butintentchangesareprohibitedbyMGA04.Bisplausible,buttemporarychangestoadministrativeproceduresisprohibitedbyMGA04.Displausible,butadditionofcorrectiveactionsisprohibitedbyMGA04.Question69InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31166User-DefinedID:R69CrossReferenceNumber:802-4101-0013-008Topic:UseofTemporaryChangeNoticeNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013Comments:KA-Knowledgeoftheprocessformakingchangestoprocedures.Question69Table-ItemLinksPlantProceduresMGA04NUREG1123KACatalogRev.2G2.2.63.0/3.6KnowledgeoftheprocessformakingchangestoproceduresILOEXAMPage:133of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO70ID:R70Points:1.00Theplantisoperatingat100%powerwiththeoperatingcrewmakingpreparationstoventtheDrywellforpressurecontrolinaccordancewith23.406,PrimaryContainmentNitrogenInertingandPurgeSystem,usingDivisionISGTSasaventpath.TheCRNSOreportsthatDivisionISGTShasfailedtostart.Basedontheseconditions,whatactionshouldbetakentolowercontainmentpressure?A.Line-upandventthroughRBHVAC.B.StartDivisionIISGTSandventtheTorus.C.StartDivisionIISGTSandventtheDrywell.D.Line-upandventcontainmentthroughtheTorusHardenedVent.Answer:AAnswerExplanation23.406Section5.1prerequisitestates"IfSGTSistobeusedforpurging/ventingoperation,bothSGTStrainsmustbeFUNCTIONALLYCAPABLEwhileinModes1,2,3,or4."and"IfSGTSistobeusedforpurgeoperationwhileinModes1,2,or3,onlyonetrainmaybeused."SinceDivision1hasfailedtostart,SGTScannotbeused.RBHVACistheonlyalternative.B&Careplausible,butincorrectduetothe23.406Section5.1prerequisitestatingSGTScannotbeused.Displausible,butincorrectbecausetheTorushardenedventisonlyusedwhenDWPressureis>1.68psig(duringemergencies).Question70InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31147User-DefinedID:R70CrossReferenceNumber:315-0019-C005-001Topic:VentingtheDrywellNumField1:LOKHNumField2:10CFR55.41(b)7TextField:ILO2013Comments:KA-Abilitytocontrolradiationreleases.ILOEXAMPage:134of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion70Table-ItemLinksPlantProcedures23.406NUREG1123KACatalogRev.2G2.3.113.8/4.3AbilitytocontrolradiationreleasesILOEXAMPage:135of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO71ID:R71Points:1.00Youhavejustleftacontaminatedareaandarerequiredtoperformafriskusingahand-heldfrisker.Whatactionisrequiredifthemeterisreading340cpm?A.ContactRadiationProtection.B.Performawholebodyfriskatarateof2inchesperminute.C.Performawholebodyfriskatarateof0.5inchespersecond.D.SetthehandheldfriskerresponseswitchtotheFASTposition.Answer:AAnswerExplanationMRP04,EnclosureB,page3of7,states"Notethebackgroundreadingonthemeter.If300cpmorgreater,contactRadiationProtection."B&Careincorrect-aproperwholebodyfrisktakesapproximatelythreeminutestoperform.Trainingmaterialstatesthatmonitoringisperformedaboutonehalfinchfromthefriskerprobeataspeedofabout2inchespersecond.Disincorrect-theinstrumentshouldbeontheX1rangeandSLOWresponse.Question71InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:3.00SystemID:31208User-DefinedID:R71CrossReferenceNumber:508-0001-0036-001Topic:FriskUsingaHand-HeldFriskerNumField1:LOKLNumField2:10CFR55.41(b)12TextField:ILO2013Comments:KA-Abilitytouseradiationmonitoringsystems,suchasfixedradiationmonitorsandalarms,portablesurveyinstruments,personnelmonitoringequipment,etc.ILOEXAMPage:136of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion71Table-ItemLinksPlantProceduresMRP04NUREG1123KACatalogRev.2G2.3.52.9/2.9Abilitytouseradiationmonitoringsystems,suchasfixedradiationmonitorsandalarms,portablesurveyinstruments,personnelmonitoringequipment,etc.ILOEXAMPage:137of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO72ID:R72Points:1.00YouhavebeenassignedtotheFINTeamtoentertheRHRHXRoomtoperformavisualinspection.Youhavereviewedasurveyoftheroomandreceivedapre-jobbrieftobecomeknowledgeableoftheRoutineSpecificRWPforthisactivity.Basedonthesurveythefollowingradiologicalconditionsarepresentintheroom:Highestcontaminationlevel750dpm/100cm 2beta-gammaGeneralarearadiationlevels250mrem/hrYouobservethefollowingpostedsignswhenyouarriveattheroom:CAUTION-RADIATIONAREACAUTION-CONTAMINATIONAREAWhatactionsarerequired?A.Enterthearea,andperformthevisualinspection.B.STOP.NotifythecontrolpointthattheRadiationAreaONLYsignisincorrect.C.STOP.NotifythecontrolpointthattheContaminationAreaONLYsignisincorrect.D.STOP.NotifythecontrolpointthattheRadiationAreaandtheContaminationAreasignsareBOTHincorrect.Answer:BAnswerExplanationB.TheContaminationareasigniscorrect.TheRadiationSignshouldbebeHighRadiationAreabasedonthegeneralradiationlevels.A.isincorrectbecausetheexamineemustknowwhenanareaispostedincorrectly.C.isincorrectbecauseonlytheradiationareasigniswrong.Plausiblebecausethesignsarepostedandtheexamineemustknowthelevelstogettherightselection.D.isincorrectbecauseonlytheradiationareasigniswrong.Plausiblebecausethesignsarepostedandtheexamineemustknowthelevelstogettherightselection.ILOEXAMPage:138of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion72InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:4.00SystemID:32846User-DefinedID:R72CrossReferenceNumber:NEWTopic:RWPNumField1:LOKHNumField2:10CFR55.41(b)12TextField:ILO2013mcComments:KA-Abilitytocomplywithradiationworkpermitrequirementsduringnormalorabnormalconditions.Question72Table-ItemLinksPlantProceduresMRP04NUREG1123KACatalogRev.2G2.3.73.5/3.6AbilitytocomplywithradiationworkpermitrequirementsduringnormalandabnormalconditionsILOEXAMPage:139of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO73ID:R73Points:1.00InaccordancewithMOP10,"FireBrigade",whichoneofthefollowingindividualscouldbeassignedtothefirebrigadewiththeplantoperatinginMode1,assumingeachindividualhasmetthephysicalandtrainingrequirements?A.ReactorOperatorassignedasSafeShutdownB.RadwasteOperatorassignedasShiftCommunicatorC.SeniorReactorOperatorassignedastheShiftManagerD.NuclearOperatorassignedasTurbineBuildingRoundsAnswer:DAnswerExplanationAnNOassignedasroundsoperatormeetstherequirementsforfirebrigademember.A,B,&Careincorrect-MOP10,sect.3.1.1,doesnotallowcrewmembersnecessaryforsafeshutdownoftheunit,anddoesnotallowtheShiftManagertobeamember.Question73InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31067User-DefinedID:R73CrossReferenceNumber:802-4101-0028-006Topic:FireBrigadeMembershipNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013Comments:KA-Knowledgeoffireprotectionprocedures.Question73Table-ItemLinksPlantProceduresMOP10NUREG1123KACatalogRev.2G2.4.253.3/3.7KnowledgeoffireprotectionproceduresILOEXAMPage:140of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO74ID:R74Points:1.00WhilereviewingtheEOPflowchartsyoucomeacrossasymbolthatisadiamondshapewithanarrowexitingtherightsideandanotherarrowoutthebottomofthediamondshape.Whatdoesthissymbolindicate?A.DecisionStepB.Hold/WaitPointC.InstructionalStepD.ConcurrentExecutionAnswer:AAnswerExplanationDiamondshapewitharrowsindicateaDecisionStep.Bisplausible:octagonalshapeisahold/waitpoint.Cisplausible;rectangularshapeisaninstructionalstep.Displausible;EXECUTECONCURRENTLYBOXindicateconcurrentexecutionsteps.Question74InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

3Difficulty:2.00SystemID:31149User-DefinedID:R74CrossReferenceNumber:802-3001-0005-008Topic:EOPFlowchartSymbolsNumField1:LOKLNumField2:10CFR55.41(b)10TextField:ILO2013Comments:KA-KnowledgeofgeneralguidelinesforEOPusage.ILOEXAMPage:141of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion74Table-ItemLinksPlantProceduresFermiWritersGuideAppF:EOPFlowchartsNUREG1123KACatalogRev.2G2.4.143.8/4.5KnowledgeofgeneralguidelinesforEOPusageILOEXAMPage:142of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-RO75ID:R75Points:1.00Aplanttransientoccurred,and29.100.01Sheets1A,2and3wereentered.Conditionshavecontinuedtodeteriorate,andtheSAGsarebeingimplemented.Subsequently,anunisolableHPCIsteamlineruptureoccurs.WhichofthefollowingactionswouldyouexpecttheCRStofollow?A.Enter29.100.01Sheet5,SecondaryContainmentandRadRelease,andcontinueintheexistingEOPs.B.ContinueintheSAGsasdirectedbytheTSC,andenter29.100.01Sheet5,SecondaryContainmentandRadRelease.C.Enter29.100.01Sheet5,SecondaryContainmentandRadRelease,andre-enter29.100.01Sheet1A,RPVControl-ATWS.D.ContinueintheSAGsasdirectedbytheTSC,anddoNOTenteranyEOPs.Answer:DAnswerExplanationConcerningactionsafterentryintotheSAGs,BWROGEPGs/SAGs,AppendixBstates "AdditionalEOPentryconditionsmaythenbedisregardeduntilthePSAMGsareexited."(pageB-4-4)A,B&CareplausibleiftheexamineebelieveswearestilloperatingintheEOPs.Question75InfoQuestionType:MultipleChoiceStatus:ActiveAlwaysselectontest?YesAuthorizedforpractice?NoPoints:1.00TimetoComplete:

6Difficulty:4.00SystemID:31148User-DefinedID:R75CrossReferenceNumber:NEWTopic:PrioritizeEOP/SAGActionsNumField1:LOKHNumField2:10CFR55.41(b)10TextField:ILO2013Comments:KA-KnowledgeofEOPimplementationhierarchyandcoordinationwithothersupportproceduresorguidelinessuchas,operatingprocedures,abnormaloperatingprocedures,andsevereaccidentmanagementguidelines.ILOEXAMPage:143of14425July2013 EXAMINATIONANSWERKEY2013ILONRC-ROQuestion75Table-ItemLinksPlantProceduresBWROGEPGAppBNUREG1123KACatalogRev.2G2.4.163.5/4.4KnowledgeofEOPimplementationhierarchyandcoordinationwithothersupportproceduresorguidelinessuchasoperatingprocedures,abnormaloperatingprocedures,andsevereaccidentmanagementguidelinesILOEXAMPage:144of14425July2013