雨课堂学堂在线学堂云Urban Rail Transit Signal Infrastructure Equipment Maintenance(武汉铁路职业技术学院)单元测试考核答案

第1题Thereturnfactoris:().ATheratioofthereleasevaluetotheoperatingvalueBTheratioofthepick-upvaluetothereleasevalueCTheratioofthechargevaluetothereleasevalueDTheratiooftheratingtotheoperatingvalue第2题Thecontactformofthecontact,therearethreekindsofsurfacecontact,linecontactandpointcontact,andtheadvantagesoflinecontactare:().AThecontactsurfaceisthelargest,andthecontactresistanceshouldbethesmallestBThepressureisrelativelyconcentrated,intheprocessofcontactclosureanddisconnection,thesurfaceofthelinearcontactcanslidealongtheothercontactsurface,andthesurfaceoxidelayeranddustwillautomaticallyfalloff,whichplaysanautomaticpurificationroleandreducesthecontactresistanceCThecontactresistanceislarge,theheatdissipationareaissmall,andthetemperatureiseasytoriseDThepressureismostconcentratedandthecontactresistanceisthemoststable第3题WhenbuttonAispressed,AJispoweredontopickup,whenthebuttonisreleased,thebuttonisautomaticallyrestored,atthistime,althoughthebuttoncontacthasbeendisconnected,butthefrontcontactofAJitselfhasformedthepowersupplyloopoftheAJcoil,soAJItremainsintheclosedstate,andrealizesthememory()effectofthebuttonpressed.Whenthememorytaskiscompleted,relyingonthesuctionoftherecoveryrelayFUJ,therearcontactisdisconnectedtocutoffthepowersupplycircuitoftheAJcoil,sothattheAJfallsandreturnstoitsoriginalstate.()ASequentialcircuitBRectifiercircuitCMemorycircuitsDSelf-closingcircuit第4题Thecauseofsparksorarcsbetweenthecontactsiswhatcomponentsexistinthecircuit.()AResistanceBCapacitanceCInductanceDPowersupply第5题Whatkindofrelayhastheelectricalparameters-reverseworkingvalue.()ANon-polarizedRelayBPolarizedRelayCPolarBiasedRelayDRectificationRelay第6题Whichofthefollowingmethodscanachieverelayfastsuction.()AIncreasetherelayterminalvoltageinthecasethattherelaycoilallowsoverload.BRCparallelcircuitinserieswithrelaycoilmakestherelayquicklysuck.CPutacoppersleeve(copperring)ontheironcore.DIncreasethewirediameterofthecoilwire.正确答案：ABD第7题Inordertoensurethattherelaycanworkreliablyinvariousautomaticcontrolequipment,itisnecessarytohavecertainrequirementsforthecontactsystem,andselectthefollowingcorrectoption().AWhenthecontactisclosed,thecontactisreliable,andthecontactresistanceissmallandstable.BThecontactdoesnotflutterduringclosureanddisconnection.CWhenthecontactisdisconnected,itshouldbereliablyseparated,andtheresistancebetweenthecontactsisinfinite,thatis,thereisacertaingap.DHighthermalconductivityandelectricalconductivity.正确答案：ABCD第8题Themethodsforeliminatingthearcoftherelaycontactare:().AUsereinforcedcontacts.BUseanexternalcircuit.CLimitthepowerofthecircuit.DIncreasethedistancebetweencontacts.正确答案：CD第9题Accordingtothefail-safetyprinciple,thefallingstateoftherelaymustbeconsistentwiththesafetysideoftheequipment.Thefollowingsatisfyingthefail-safetyprincipleare:().AThepull-upofthesignalrelayshouldbeconsistentwiththesignalshutdownBThefallofthetrackrelayshouldbeconsistentwiththeoccupationofthetrackcircuitCThefallofthesignalrelayshouldbeconsistentwiththesignalshutdownDThesuctionofthetrackrelayshouldbeconsistentwiththeoccupationofthetrackcircuit正确答案：BC第10题Theanalysismethodsofrelaycircuitsare:().AActionProcedureLawBTimeplottingCConnectingpathmethodDIndependentpowersupplymethod正确答案：ABC第11题Relayisakindofcontrolparameterwhenitchanges,whichcancausesuddenchangesinthecontrolledparametersandelectricalcomponents.Ithastheabilitytocontrolobjectswithaverysmallelectricalsignalintheexecutioncircuitwithconsiderablepower,andcancontrolseveralobjectsorseveralcircuitstocompletethecomplexlogicalrelationshiprequirementsthataredifficulttoachievemanually.()第12题Addastopbetweenthearmatureandthemagneticpole,forAXtyperelay,addapieceofsteelstop(referredtoasstoppiece)toincreasethemagneticresistanceofthemagneticcircuitinthesuctionstateoftherelay,reducetheresidualmagneticinfluenceandimprovethereleasevalue,andensurethereliablereleaseoftherelay.()第13题Thestructureofthepolarizedrelayisbasicallythesameasthestructureofthenon-polarizedrelay,buttherearespecialpartsinthemagneticcircuitsystem,thatis,thecorepoleshoeissquare,thearmatureissquare,andthelowerendofthesquarepoleshoeisequippedwithanO-typepermanentmagnet.()第14题Thereisapolarizedrelay,whichhasthefunctionofreflectingthepolarityoftheexternalsignal.()第15题Thestatepresentedbythecircuitdiagramrelayiscalledthenormalstate(referredtoasthenormalstate),orthepositioningstate.()第16题Thecoilsymbolofarelayanditscontactsymbolcannotbedrawnindifferentpositionsofthecircuitdiagram,norcanitbedrawnondifferentdrawings.()第17题Seriescircuitreferstothecircuitconnectedinseriesoftherelaycontact,anditsfunctionistorealizetheoperationoflogic"and".()第18题Manyofthereinforcedcontactsoftherelaystipulatethepositiveandnegativepolaritybecausetheyareequippedwithmagneticarcblowingdevices,whichrequirethedirectionofthecurrentthroughthecontacts,inlinewiththeprincipleofmakingthearcbetweenthecontactsblowoutward.()第19题Thesparkorarcgeneratedatthemomentofcontactdisconnectionbelongstothereleaseofenergy,andtheenergyofthesparkisgreaterthantheenergyofthearc.()第20题Thismethodthattheupperissolid,thelowerisdotted,andcometofindthefrontcaneffectivelyjudgetherelaycoilterminal.()第1题Signalsrequiringstopping,generallycalled"prohibitionsignals"or"stopsignals";Signalsthatrequireattentionorslowdownandsignalsthatallowoperationataspecifiedspeedarecalled"processingsignals"or"permittingsignals".()第2题Thebasiccolorofthevisualsignalanditsbasicmeaningare:red-stopping;Yellow–attentionorslowdownthespeed;Green–runsattopspeed.()第3题Intheshuntingsignalmachinesignaldisplay,blueindicates"permittedshuntingsignal",whilethewhitemoonindicates"noshuntingsignal".()第4题Therailwaysignaldisplaysystemcanusuallybedividedintotwocategories:approachtypeandspeeddifferencetype.Theapproachsignaldisplaysystemexpressesthemeaningoftheapproach;Thespeeddifferencesignaldisplaysystemexpressesthemeaningofspeed.()第5题Thecolorlampsignalmachineisequippedwithasemi-cylindricalvisor,anditsroleistousealongcylindricalshadetoavoidtheinfluenceofdirectlight.()第6题Atpresent,the"SubwayDesignCode"doesnotmakeuniformprovisionsonsignaldisplay.()第7题Shuntingsignalmachine,othersignalmachines,whenthefirstroundofthetraincrossesthesignalmachinewillautomaticallyshutdownintime.()第8题Thenormalpositionofthepitstationsignalmachineandtheoutboundsignalmachineisaredlight.()第9题Fivedisplaysignalmachinemeansthatthesignalmachinehasfivelightpositions,andthecolorsaredifferent.()第10题Whenthelightsofthepitstation,exit,approachandpassingsignalmachineareturnedoff,displayedindistinctlyorincorrectly,itisregardedasastopsignal.()第11题Colorlightsignalmachinesareequippedwithblackovalbackplatesfor().AThebrightnessofthesignallightsmakesiteasierforlocomotivedriverstoidentifyBBlockoutthesunCShelterfromtherainDShelterfromthesun第12题Thedistancetraveledbythetrainfromthebeginningofbrakingtothecompletestop,whichiscalled().ADirect

distanceBBrakingdistanceCParkingdistanceDDistancetraveled第13题WhenthenumberofdiscLEDdiodedamageexceeds(),analarmconditionisgeneratedtosendanalarm.A20%B30%C40%D.50%第14题ThemeaningexpressedbytheequipmenttypesymbolXDZinrailwaysignalsis:().ASignallightingunitBSignalfilamentconversionCSignallightingdeviceDSignalfilamentrectification第15题ThebluelightintherailwaysignalisexpressedbytheHanyuPinyinsymbol().AUBBCLDA.第16题Visualsignalisasignalrepresentedbycharacteristicssuchasobjectsorlights().AColor,shapeBLocationCGlitterDNumberordigitaldisplay正确答案：ABCD第17题Lenticularcolorlampsignalmechanismsinclude()andsoon.AConvexlensesBLightholdersandlightbulbsCShadeeavesDBackplate正确答案：ABCD第18题Thethreecommonlyusedcolorlampsignalmachinesare:().ALenticularcolorlightsignalmachineBCombinedcolorlightsignalmachineCLEDcolorlightsignalmachineDSearchlightcolorlightsignalmachine正确答案：ABC第19题Thefunctionsofthemulti-functionintelligentlightingunitare:().ABrokenwirealarmBSurgeproofCBuckandstabilizationDMainwire,secondarywireswitching正确答案：ABCD第20题Railwaystraightwiresignalbulb,TX-12-25asanexample,means:().AT(rail).BX(signal).C12(12v)D25(25w)正确答案：ABCD道岔转辙设备认知与维护作业DAssessmentforTurnoutSwitchingDevicesandTheirMaintenance第1题ZD6serieselectricswitchmachineisaDCswitchmachine,poweredbyDC110V,thedisadvantageisduetothepresenceofcommutatorandbrushes,easytodamage,highfailurerate.()第2题S700KelectricswitchmachineandZYJ7electro-hydraulicswitchmachinearebothACswitchmachines,becausethereisnocommutatorandbrushes,sothefailurerateislow,andthesingle-corecablecontroldistanceislong.()第3题ZD6electricswitchmachinestarterhasatrapezoidalgrooveonthestartingpiece,andtherewillalwaysbeasnap-actionclawoccupyingitaftertheturnoutislocked.()第4题ZD6electricswitchmachinemeansrodiscomposedoffrontrod,rearrodandtwoinspectionblocks,thetworodsarefixedtogetherbytighteningboltsandadjustingnuts.()第5题ThefrictionforceofthefrictioncouplingofZD6electricswitchmachineshouldbeadjustedappropriately,tootightwilllosethefrictioncouplingeffect,damagethemotorandparts;Tooloosecannotdrivetheswitchconversionnormally.()第6题TherockergearandmotorgearofS700Kelectricswitchmachineareatransmissionsystem,whichenablesmanualoperationoftheswitchmachinewiththeshaker.()第7题Ontheonehand,theballscrewturnstherotarymovementofthemotorintothelinearoperationoftheleadscrew;Ontheotherhand,itactsasabuffer.()第8题ThetopcoveroftheS700Kelectricswitchmachinetokeepthecouplingcanbeopenedatwillformaintenance.()第9题TheS700Kelectricswitchdetectionlevermoveswiththetiprailorcorerailchangeovertomonitorthestatusoftheswitchattheendposition.()第10题ThenormalejectionoftheS700Kelectricswitchlockingblockisusedtoblockthemovementoftheholdingcouplingoftheswitchmachineandrealizetheinternallockingoftheswitchmachine.()第11题Forexample,whenthetrainisfacingthesharprail,ifthesharprailispoorlyadheredto,thatis,thegapexceedsacertainlimit(),thewheeledgeofthecarmaycollideorsqueezeintothetipofthesharprailfromthegapandcauseaseriousdrivingaccidentofsubversionorderailment.AGreaterthan4mmBGreaterthan8mmCGreaterthan10mmDGreaterthan20mm第12题Whentheturnoutispositionedorreversed,andthesharprailisclosetothebasicrail,thearcofthelockinggearoftheZD6electricswitchmachinecoincideswiththearcsurfaceofthesharpenedtoothof(),soastorealizethelockinginthemachine.ALockblockBSnapactionCRackblockDStarterpiece第13题The()functionofS700KelectricswitchmachineisthesameasthatofZD6electricswitchmachine.ASafetycontactholderBPlug-inmachineCStarterpieceDSwitchcircuitcontroller第14题ThereliefvalveofZYJ7electro-hydraulicswitchmachineandthe()functionofZD6electricswitchmachinearesimilar.AStarterpieceBFrictioncouplingCSnapactionDReducer第15题Thein-machinelockingmethodofZDJ9electricswitchmachineisthesameas().AZD6electricswitchmachineBZYJ7electro-hydraulicswitchmachineCS700KelectricswitchmachineDZKelectricswitchmachine第16题Turnoutsthemselvesarenotinthedirectionofdirectionanddirection.Thisisonlybasedonthedirectioninwhichthetrainistraveling.Whenthetrainisrunningagainstthesharptrackoftheturnout,theswitchiscalled().Conversely,whenthetrainrunsalongthesharptrackoftheturnout,itiscalled().()AForwardturnoutBReverseturnoutCOpposingturnoutsDFollowtheturnout正确答案：CD第17题Theroleoftheswitchmachineis:().AConvertthepositionoftheturnout,asneededtopositionorreverseposition;BAftertheturnoutisturnedtothedesiredpositionandclosetoit,itislockedtopreventexternalforcefromconvertingtheturnout;CCorrectlyreflecttheactualpositionoftheturnout,andthesharprailoftheturnoutiscloselyattachedtothebasicrail,givingacorrespondingrepresentation;DWhentheturnoutissqueezedorforsomereasonitisinthe"fouropen"(bothsharprailsarenotclose)position,timelyalarmandindication.正确答案：ABCD第18题Everytimetheelectricswitchmachineisconverted,theZD6electricswitchmachinelocksthegearandpinionblocktocompletethefollowingthreeprocesses.()AUnlockingBSwitchingCLockingDTransmission正确答案：ABC第19题ZD6electricswitchmachineextrusiondeviceincludes()and(),usedforsqueezeforkprotection,andgivethesqueezeforkindication.()ADissectiblepinBCheckthecolumnCRepresentsarodDDisplacementcontactor正确答案：AD第20题Thefrictionforceofthefrictioncouplingmustbeadjustabletoachieve:().AMaketheturnoutundernormalworkingconditions,themotorcandrivetheswitchmachinetowork.BToenabletheturnouttooperatenormally,themotorcanadjustthespeed.CWhentheswitchisfinishedortheswitchrailisblocked,themotorcanovercomethepressureofthefrictioncouplingandidletoensurethatthemotorisnotburned.DWhentheswitchisconvertedorthesharprailisblocked,themotorautomaticallystops.正确答案：AC轨道电路认知与维护作AssessmentforTrackCircuitsandTheirMaintenance第1题Thetrackcircuitisacircuitcomposedofaconductorusingtherailofarailwayline,whichisusedtoautomaticallyandcontinuouslydetectwhetherthissectionofthelineisoccupiedbyrollingstock,andisalsousedtocontrolthesignaldeviceorswitchdevicetoensurethesafetyofthetrain.()第2题Therailinsulationisinstalledattheboundaryofthetrackcircuit,whichisinstalledtoseparateordividethetrackcircuit,andthelocationoftheboundaryisclear.()第3题Theraillinebetweenthetwoinsulatedjoints(thatis,betweenthepowertransmissionendandthereceivingend)iscalledthecontrolsectionofthetrackcircuit,thatis,thelengthofthetrackcircuit,andthelengthofvarioustypesoftrackcircuitsisthesame.()第4题Thefirstfunctionofthetrackcircuitistosupervisetheoccupationofthetrain,andthesecondfunctionofthetrackcircuitistotransmittraininformation.()第5题Theopen-circuittrackcircuitisusuallyopen-circuited,andtheclosed-circuittrackcircuitusuallyconstitutesaclosedloop.Theopen-circuittrackcircuitcomplieswiththeprincipleoffault-orientedsafety.()第6题Insulatedtrackcircuitsusemechanicalinsulatedjoints,anduninsulatedtrackcircuitsuseelectricalinsulationjoints.()第7题The25/50Hzphase-sensitivetrackcircuitcanonlybeusedtodetectwhetherthetrackcircuitsectionisfree,andcanalsotransmitdrivinginformation.()第8题Theresonantnon-insulationmethodofthetrackcircuitistousecapacitorsandtheinductanceofapartoftherailtoformaresonantcircuitattheboundaryofthetrackcircuit,andtheadjacenttrackcircuitadoptssignalcurrentsofdifferentfrequenciestomakethetrackcircuitelectricallyisolated.()第9题Axlecountingequipment()usestracksensorsandcounterstorecordandcomparethenumberofaxesinandoutofthetracksectiontodeterminetheoccupationoridlenessofthetracksection.():.第10题Theaxlecountingequipment()cansupervisetheoccupationofthetrain,andalsohasthefunctionofbrokentrackdetection.()第11题()isoneoftheprotectivemeasuresfortheinsulationdamageofthetrackcircuit.AInsulationprotectionBThickenedinsulationCPolarcrossingDInsulatinggaskets第12题Thetrackcircuitoftheturnoutsectionisnamedaccordingtotheturnoutnumber,andifitcontainsthreegroupsofturnoutsNo.11,23and27,thesectionnameis:().A11-23-27DGB1127DGC11/27DGD11-27DG第13题The50HZmicroelectronicphase-sensitivetrackcircuituses()insteadoftheACbinarybinaryrelayfrequencyandphaseselectioninthe50HZphase-sensitivetrackcircuit.AMicroelectronicphase