雨课堂学堂在线学堂云The Principle and Structure of Printing Press(印刷机原理与结构)(西安理工大学)单元测试考核答案

第1题Thefiveelementsoftraditionalprintingaretheoriginalandplate()AinkBsubstratesCprintingpressDprintingaccuracy正确答案：ABC第2题Whatcanbeusedasasubstrateintheprintingprocessis()AwaterandairBpaper,paperboardCplasticfilm,aluminumfoilDvariousforms正确答案：BCD第3题Printingplatereferstotheprintingimageandtextcarrierusedtotransferinktothesubstrate.Includingrelief,gravure（）AthinplateBthickplateCflatplateDporousplate正确答案：CD第4题Accordingtotheclassificationofprintingpressure,theprintingpressisdividedinto（）AprintingpresswithpressureBprintingpresswithoutpressureCprintingpresswithlightpressureDprintingpresswithheavypressure正确答案：AB第5题Pressprintingisclassifiedinto（）APlatenprintingpressBFlat-bedprintingpressCRotaryprintingpressDRepeatedlyrotaryprintingpress正确答案：ABC第6题Thegraphicinformationarecomposedofholesofdifferentsizes.Theinkisextrudedfromtheholestothesubstratesurface.Thistypeofprintingiscalled()AGravureprintingBReliefprintingCPlanographicprintingDPorousprinting第7题Thecylindertransfermethodofsheet-fedoffsetprintingpressbelongsto()AdirectprintingBindirecttransferbyblanketcylinderCnoprintingpressurerequiredDdirectwayofplatecylinderandimpressioncylinder正确答案：B第8题Accordingtotheshapeofthesubstrates,therearesheet-fedprintingpressandweb-fedprintingpress.Thesubstratesofweb-fedprintingpressis()AtensionedcontinuousstripBstackneatsheetsofpaperCstripwithouttensionDtensionedsheet第9题Thedevelopmenttrendofprintingequipmentis()Afromtheproductionofsingleprintingequipmenttothedevelopmentofintegratedprintingsolutions.Thecombinationformofprintingsystem.BprintingorganizationformofsingleprintingequipmentproductionCnoneedtooptimizethestructure,noneedtoconsiderthegreenprintingmethodDnoneedforsystematiccombinationofprinting第10题Inprintingequipment,accordingtothenumberofprintingcolors,printingmachinesaredividedinto()Anewspaper,books,specialticketprintingmachinesBmonochrome,bicolorandmulticolorprintingpressCfull-sizeprintingpress、half-sizeprintingpress、quarter-sizeprintingpress、eightfoldprintingpressDsingleanddoublesidedprintingmachines第1题Thetransmissionbetweenthemainmachineandthefeedingsystemusuallyadopts()totransmitlowpairmechanismoftherotationbetweentwointersectingshafts.AtoothbelttransmissionBuniversalcouplingtransmissionCchaintransmissionDgeartransmission.第2题Inordertopreventtheimportantmachinepartsfrombeingdamagedintheaccident,an()issetupinthetransmissionsystemtolimittheoverloadpowertransmissionandplayaroleofsafetyprotection.AoverloadsafetymechanismBturningsafetymechanismCdecelerationmechanismDacceleratingmechanism第3题Basiccharacteristicsofoffsetprintingare()AflatprintingplateBtheprincipleofoil-waterrepulsionCindirecttransferDdampenfirst,thenink正确答案：ABCD第4题Whichofthefollowingprintingmethodsbelongtolithography:()APorousprintingBLithographicprintingCCollotypeprintingDOffsetprinting正确答案：BCD第5题Thethreemaincylindersofasheet-fedoffsetpressare:()ABlanketcylinderBImpressionCylinderCPlatecylinderDTransfercylinder正确答案：ABC第6题Therelevantstructuresoftheunit-typefour-coloroffsetpressare:()ADeliverymechanismBTransfercylindersbetweenthecolorunitsCMultiplehandoversofpaperDRegisteradjustmentmechanism正确答案：ABCD第7题Therelevantstructuresofthesatellite-typefour-coloroffsetpressare:()ADeliverymechanismBTransfercylindersbetweenthecolorunitsCThecolorunitsaredistributedaroundtheimpressioncylinderDTheimpressioncylindermakesonerevolutiontocompletefour-colorprinting.正确答案：ACD第8题Lithographicoffsetprintingadoptstheprincipleofoilandwaterrepellingeachother.Waterisappliedtothesurfaceoftheplatecylinderfirstandtheninkisapplied()AInkthegraphicpartoftheplateBDampentheimageandtextontheprintingplatewithwaterCThegraphicpartandthenongraphicpartontheplateabsorbwaterandinkatthesameDThegraphicpartontheprintingplateishydrophilicandlipophilic.第9题Thebasicstructureofasheet-fedoffsetpressis()APlatecylinder+blanketcylinder+ImpressionCylinderformBPlatecylinder+blanketcylinderformCblanketcylinder+ImpressionCylinderformDVariousrollerscanbecombinedflexibly第10题Themainmovementsofthetransmissionsystemofatypicalsheet-fedoffsetpress()Aprintingcylinder,paperfeedmechanism,grippermechanism,paperreceivingchain,inkinganddampeningmechanismBroll-fedsystem、delivery device、adjustingdeviceCtension control system、guiderollerDtriangularfoldingmechanism、printingcylinderrotationTest3.1第1题Surfaceutilizationrateofsequentialclutchroller.A"Notlimitedbythearrangementangleofthedrum;BLimitedbythearrangementangleofthedrum;CLimitedbydrumarrangementangleandneutralangleDItisnotlimitedbythedrumarrangementangleandneutralangle.第2题Requirementsforclutchpressureofsheetfedoffsetpress:AThetimecanbeswitchedonandoffatanytime,andthewasteproductscanbeputforwardintime;BClosingpressuredoesnotneedself-locking;CReleasethepressureintimeincaseoffailure第3题Thedisadvantagesofsimultaneousclutchpressureofsheetfedoffsetpressare:A"Theprintingpressureistoosmallandthepictureandtexttransferisnotcomplete;BThesurfacelinearspeedofthreerollerscanbeinconsistentCTheutilizationrateofdrumsurfaceissmall.Whenthedrumarrangementangleisgreaterthan180°,thedrumsurfaceutilizationcoefficientislessthan0.5;DThereisnoneedfortheclosingadvanceangle,anditisnotnecessarytobetheclosingordisengagingpressurewhentheneutralgearmeets第4题WhataretherequirementsfortheprintingpartsofsheetfedoffsetpressA"Thereisacertainpressure,andthepressureismaintainedwhennotprinting;BThelinearspeedofeachdrumsurfaceisconsistent;CForprintsofdifferentthicknessandmaterials,theprintingpressureshouldbeconstant.第5题Duringtheworkingprocessofprintingparts,theremustbetwoworkingstatesA"Whenthepaperentersthedrum,therollersshallbeabletorolleachotherandentertheoffpressprintingstateBWhenthepapersupplyisstopped,therollerdoesnotneedtobedisengagedintimeandcontinuestomaintainthepressingstate.CWhenthepapersupplystops,therollerneedstobedisengagedintimetokeepthepressingstate.DWhenthepapersupplystops,therollerneedstobedisengagedintimeandentertheoffpressurestate.第6题ThepressureregulationrequirementsofprintingpartsareA"Sensitivityandindependenceofvoltageregulation;BThepressurebetweenthethreerollersaffectsandadjustseachother;COnlyneedtoadjustthepressurebetweentheembossingdrumandtherubberdrum;DJustadjustthepressurebetweentherubbercylinderandtheplatecylinder.Test3.2第1题EccentricbearingofP+eccentricbearingofB:ATheeccentricbearingofdrumPisusedtoadjustthepressurebetweenPandB;BRoller:theeccentricbearingofBcanonlyrealizetheoffpressureandonpressureoftheroller;CRoller:theeccentricbearingofBcanonlyadjustthepressurebetweenBandI.第2题Drivingformofreleaseandclosingmechanism.ATherearethreetypes:mechanical,hydraulicandpneumaticBMechanicaltypeshallnotbeadopted;CPneumatictypecannotbeadopted;DHydraulictypecannotbeused.第3题Thefunctionofeacheccentricbearingintheseparationandclosingpressureofthedoubleeccentricbearingdrumis.A"Innereccentricbearing"isusedtorealizetheseparationandclosingprocess.BTheinnereccentricbearingisusedtorealizethepressureregulationprocess.CWhentheinnereccentricbearingdoesnotmove,rotatetheoutereccentricbearing,andO1rotatesaroundthefixedpointO2torealizesensitivepressureregulation.第4题Thepressureregulatorofsheetfedoffsetpresshas.A"Atpresent,thereareonlyconnectingrodregulators;BAtpresent,thereisonlywormgearvoltageregulator;CAtpresent,threadedregulatorisused;DConnectingrodregulator,threadregulatorandwormregulatorareallused."第5题herequirementsofthree-pointsuspensionclutchpressurestructureare.A"Extremelyhighrequirementsforwallpanelholes;BTheassemblytechnicalrequirementsforassemblytechniciansareveryhigh;CForeignHeidelbergmachinesmostlyadoptthree-pointsuspensionclutchpressurestructure.Test3.3第1题Therollingpillowanditsfunctioninthestructureofwalkingshoulderironare.A"Rollerpillowisnottheinstallationreferenceofprintingcylinder;BItisthebenchmarkforcheckingthedrumlining;CThestructureofshoulderironiscomplex,whichisdifficulttoimprovethestabilityofoperationbetweenrollers.第2题Therollingpillowanditsfunctioninthestructureofnonwalkingshoulderironare.A"Calculatethedrumcenterdistanceandtoothsideclearance;judgewhetherthedrumcenterlineisparallel;determinethedrumliningthicknessBItisonlyusedtojudgewhetherthedrumcenterlineisparallelCItisonlyusedtodeterminethedrumliningthickness.第3题Theplatecylinderplateclampstructurecomprises.AThereareonly4circumferentialpullplatescrews;BOnly2axialplatepullingscrews;CFourcircumferentialplatepullingscrewsandfouraxialplatepullingscrewscanbeusedtogethertorealizeobliqueplatepulling."第4题Theprintingpressdrumgearischaracterizedby:.A"Pressureanglea=14.5°ora=15°;BThediameterofgearpitchcircleisnotnecessarilyequaltothediameterofdrum;CThesideclearancecanbeincreasedduringtheoffpressuretransmission.第5题Thefunctionoftheplateadjustmentdeviceonthesheetfedprintingmachineis.ABasedonthelastcolorprintingplate,thefrontcolordecksareequippedwithplateadjustmentdevices.BThepositionstructureoftheprintingplateisprovidedwithcircumferentialandaxialadjustment.CThebackcolorcannotcatchupwiththefrontcolor,soitisdifficulttorealizeoverprint.第6题Thefunctionoftheneutralpartofeachprintingdrumismainlytoinstallsomemechanisms.Specifically:A"Theneutralpositionoftheembossingcylinderisusedtoinstallthepaperbitingmechanism;BTheneutralpositionoftheprintingplatecylinderisusedtoinstalltheblanketclampingmechanism;CTheneutralpositionoftherubberdrumisusedtoinstalltheplateclampingmechanismTest3.4第1题Thereductionoftheoffsetpresscylinderrefersto().ADifferencebetweentheradiusoftherollerbarrelandtheradiusofthegearknuckleBDifferencebetweentheradiusoftherollerpillowandtheradiusofthegearpitchcircleCDifferencebetweentheradiusoftherollerbarrelandtheradiusoftherollerpillowDDifferencebetweentheradiusoftherollerbushingandtheradiusoftherollerpillow第2题Walkingshoulderirontypeprintingpressplatecylinderandrubbercylindershoulderiron,rubbercylinderandimpressioncylindershoulderironclearanceare:()A0，0B0，0.1C0.1,0D0.1,0.1第3题Asheetfedoffsetpresshasanimpressioncylindergapangleof107°20′,thecylinderutilisationfactoris:()A0.7B0.72C0.73D0.98第4题Thepurposeofaneccentricsleeveonanoffsetprintingmachine,ifused,is()ASmoothrunningofthepressBEasytoprocessCEasytoinstallDAdjustmentofcylindercentreposition第5题Mostoffsetprintingmachinesuse()asareferenceforadjustingotherparts.ABlanketrollersBImpressionrollersCTransfercylindersDTransfercylindersPlatecylinders第6题Theadjustmentoftheplatecylinderaxialregistrationsystemisachievedbyshiftingtheaxialpositionofthe().ARollerhelicalgearsBEccentricbushingsCPlatecylindersDPlatepullingmechanismTest4.1第1题Thewettingdevicecanbedividedinto______accordingtothewayofnonwettingliquidofprintingplate.AContactandnon-contactBContinuousandperiodicCMechanical,electrostatic,condensingandpneumatic第2题Thewatersupplypartoftheconventionalwettingdevicemainlyincludes__.AWaterbucketBBucketrollCWaterstringrollerDWatertransferroller正确答案：ABD第3题Heidelbergwettingdevicebychanging___Adjustthewatersupplyatthespeedof.ABucketrollBMeteringrollerCWaterrollerTest4.2第1题Sheetfedoffsetpressinkingunittype()ATherearetwotypesoflonginkpathinkingsystemandshortinkpathinkingsystem.BTherearethreetypesofinkrollertype,inktabletypeandmixedtype.CTherearetwotypesofinkrollerinkingsystemandinktableinkingsystem.第2题Thecomponentsoftheinkingunitconsistof()AItonlyconsistsofinksupplyanduniformink;BOnlycomposedofuniforminkandinking;CItconsistsofthreeparts:inksupply,inkdistributionandinking.第3题Theperformanceindexoftheinkingdeviceisgivenby()AInkingcoefficient,inkdistributioncoefficient,storage(accumulation)inkcoefficient,numberofinklines,andinkingrate.BItiscomposedofinkingcoefficientandinkdistributioncoefficient.CItiscomposedoftheinkstorage(accumulation)coefficient,thenumberofinklines,andtheinkingrate.第4题Theinkingcoefficientisdefinedas()ATheratioofthesumoftheareaofasingleinkingrollertotheareaoftheprintingplate,thiscoefficientrepresentstheevennessoftheinkinkingrollertotheprintingplate,anditsvalueisgenerallylessthan1,andthesmallerthevalue,thebetter.BTheratioofthesumoftheareasofalltheinkingrollerstotheareaoftheprintingplate,thiscoefficientindicatestheuniformityoftheinkingrollerstotheprintingplate,anditsvalueisgenerallygreaterthan1,andthelargerthevalue,thebetter.CTheratioofthesumoftheareaofasingleinkingrollertotheareaoftheprintingplate,thiscoefficientindicatestheuniformityoftheinkinkingrollertotheprintingplate,anditsvalueisgenerallygreaterthan1,andthelargerthevalue,thebetter.第5题Theperformancerequirementsoftheinkingunitofanoffsetpressare()AInkshouldbesuppliedinatimely,appropriate,uniformandadjustablemanner;theinkshouldbesuppliedduringpressureprinting,andtheinkshouldbereleasedfromthepressure;BInkshouldbesuppliedinatimely,appropriate,uniformandadjustablemanner;theinkshouldbeseparatedfromthepressureandtheinkshouldbeseparatedfromthepressure.CItisnecessarytoadjusttheamountofinkintimeforinksupply;pressureprintingtosupplyink,andseparationpressuretoreleaseink;separationpressuretosupplyink(whentheamountofinkistoolarge)andpressurereleaseink(newprinting).Test5.1第1题Whichofthefollowingstatementsiscorrectregardingtheadvantagesanddisadvantagesofpaperfeedingmethods?AForthepaperfeedingspeed,continuouspaperfeedingcanachieveaslowerpaperfeedingspeed.BIntermittentpaperfeedingislessefficientandisonthetrendofbeingphasedoutgradually.CContinuouspaperfeedingwithlongpositioningtimeandhighpositioningaccuracy正确答案：ABC第2题Tocoordinatewiththehostmachine,thetimeforeachsheetofpaperconveyedbythepaperfeedingpartshouldalsobet.Whatworkinghoursdoesthistimeinclude?ATheconveyingtimeofthepaperonthepaperfeedingtable;BThetimewhenthepaperispositionedatthefrontgauge;CThetimewhenthepaperispositionedatthesidegauge;正确答案：ABC第3题Assumingthattheworkingcycletimeofthetwofeedingmethodsisequal,thepositioningtimerequiredforthefrontgaugeandthesidegaugeisthesame.Whichofthefollowingstatementsaboutintermittentpaperfeedingisincorrect?ATheconveyingspeedofintermittentpaperfeedingmustbehigherthanthatofcontinuouspaperfeeding;BIntermittentfeedingpaperisnoteasytobestable,andthereisimpactandvibrationonthefrontgauge;CIntermittentpaperfeedingispronetoinaccuratepositioningandaffectsprintingqualityDTheconveyingspeedofintermittentpaperfeedingmustbelowerthanthatofcontinuouspaperfeeding第4题ContinuousfeedingpaperbitingpositionoccursatABitesiteBTrailingpartTest5.2第1题Thecomponentsoftheseparationmechanismofthepapermoveinanorderlymanneraccordingtotherhythm,respectivelycompleting()fourmainactionsALoosenpaper,paperseparation,paperpressing,paperfeedingBLoosenpaper,pressurepaper,paperseparation,paperfeedingCPaperseparation,loosepaper,pressurepaper,paperfeedingDLoosepaper,presspaper,feedpaper,separatepaper第2题Whichofthefollowingstatementsisfalse?AThepaperstopisflushwiththepaperonthestack.BWhenthepaperfeedingnozzledeliversthepapertothepaperfeedingroller,thefrontstoppercompletesthefeedingaction.CTheblowingnozzleblowsairtoloosenthedozensofsheetsofpaperatthetopofthestack.DThefunctionofthepaperseparationnozzleistopickupthetopsheetofpaperinthestackandhanditovertothepaperpressingnozzle第3题ThefunctionofpressingpaperblowingnozzleisAImmediatelyafterthepaperseparationnozzlepicksupthepaper,dropitdownandinsertitunderthepickeduppapertopressthepaper.BPressthepaperpileandblowduringitsothattheupperpieceofpaperiscompletelyseparatedfromthepaperpile.CPressthepileofpaperandblowduringittoseparatethesheetsfromeachother.DItisusedasadetectoroftheautomaticliftingmechanismofthepaperpile,thatis,itcandetecttheheightofthepaperpile.正确答案：ABDTest5.3第1题ThepapertableliftingmechanismisrequiredtoachievethefollowingfunctionsAAutomaticallydetectandindicatetheheightofpaperstackandcarryoutcorrespondingsignaltransmission;BThepaperstackcanberaisedandloweredquickly,sothattheauxiliaryworktimecanbeshortenedduringpaperloadingandadjustment;CThepaperpilecanbemanuallyliftedandlowered,andthereshouldbeasafetyinterlockingdevicefortheliftingandloweringofthepaperpile;DFortheautomaticliftingandloweringofthepaperstack,aself-lockingmechanismneedstobeaddedtomakeitstopattherequiredpositioninaprogrammedmanner.正确答案：ABCD第2题ThemaincomponentsofvacuumsuctionbeltpaperconveyingdeviceareAconveyorbeltBPaperfeedingpinchrollermechanismCsuctionchamberDpaperfeedbrush正确答案：ABC第3题Thetechnologicalprocessofpaperfeedingismainlycomposedof()ApapersupplyBpaperseparationCalignthepaperDfeedingpaper正确答案：ABCDTest6.1第1题Thepositioningrequirementsforthefrontgaugepartsare()APositioningthefrontandreardirectionandheightdirectionofthepaper.BAfterthepositioningiscompleted,thecardboardcanswing,leavethepaperpaneltoachievethepaper.CThepositionofthepositioningboardcanbeadjustedaccordingtothesizeofthepapermouth;andthelevelofthepapertonguecanbeadjustedaccordingtothethicknessofthepaper;DWhenthereisapaperfeedingfaultsuchasdoubleormultiplesheets,theinterlockingcontroldeviceacts,andthefrontgaugedoesnotlift,sothepapercannotbereleased.正确答案：ABCD第2题Whencompletingdifferenttasks,thefrontregulationstructurestillneedstobeadjustedconveniently,andthefrontregulationmechanismshowninfigure1canraiseorlowerthewholerowoffrontgaugesbyadjusting().AScrew15BScrew18CNut8DScrew12第3题Thebasicrequirementsforthepositioningmechanismare()AItcanensurethatthepositioningaccuracyiswithin0.1mm;BThefrontgaugelineshouldbeparalleltotheembosseddrumbusbar,andthesideregularpositioningsurfaceisperpendiculartoit.CItisnecessarytoensuresufficientandnecessarypositioningtime,butalsoarrangetherelationshipbetweenthetransferofpaperandpaperdeliverymechanisms;DGoodadaptabilitytothepaper,nodamagetothepaperinthepositioningprocess.正确答案：ABCD第4题Themaincomponentsofthepre-definedbitcomponentsare()APaperfeedwheeBPaperfeedingtable.CCardboard.DPaperpresstongue正确答案：CDTest6.2第1题Theswingtimeofthefan-shapedplateisadjustedbytheadjustmentscrewsinthefigureabove?()A25B21C23D2第2题Thepaperistransportedtothefrontregulationsfirst,andthenthepositioningofthe()directionfromthesiderulesALongitudinaldirection.BHorizontal.CFrontandreardirection.DLeftandrightdirection正确答案：BD第3题Sincethepositioningdirectionofthesidegaugetothepaperisperpendiculartotherunningdirectionofthepaper,therequirementsforaccuratepositioningofthepapertothesidegaugeareasfollows:()AThesidegaugestructurenotonlyhasthepositioningplateasthepositioningreferenceandthepositioningpartssuchasthepaperpressingtonguetocontroltheflatclothesofthepaperandensurethepositioningaccuracy,butalsohasthetransmissiondevicetomakethepapermovelaterallyandmakeitclosetothepositioningplate.BThepositionandtensionofthepapercanbeadjustedaccordingtothesizeandthicknessofthepapertopreventinaccuratepositioningandpapercurling;CInaddition,thepositiveandnegativesetsarestandardized.Oneprintingmachineshouldhavetwosideregulations,sothatthepositioningedgescanbeunchangedwhenthefrontandbackprintingareunchangedtoensuretheaccuracyofthechapters.正确答案：ABC第4题Pullgaugeistopullthepapertowardsthepositioningsurfacetoproducelateraldisplacementduringpositioning.Itisalsocalledsidepullgauge.Atpresent,thecommonpullgaugeis()ASectorplateswingpullgaugeBRotaryrollerpullgaugeCPullplatemovablepullgaugeDPneumaticpullgauge正确答案：ABCDTest6.3第1题Thepaperdeliveryrequirementsmainlyinclude:AZerospeedpapertaking:whentakingpaperfromthepaperfeedingtable,thespeedofthepaperdeliveryteethshouldbezero,thatis,thepositionedpapershouldbetakeninastaticstate.BConstantspeedpaperdelivery:whenthepaperisdeliveredtotheembossingcylinder,thespeedofthepaperdeliveryteethshallbethesameasthedirectionandsizeofthesurfacespeedoftheembossingcylinder.CTheprocessofacceleratingfromimpactorverysmallpointtopoint.DTheremustbeaperiodofhandovertimenomatterwhetherthepaperistakenorhandedin.正确答案：ABCD第2题Thepaperdeliverymethodsmainlyinclude:ATakethepaperdirectlyBIndirectpaperdeliveryCBeyondcontinuation正确答案：ABC第3题Accordingtothemovementmodeofthepaperdeliveryteeth,theswingpaperdeliveryteethcanbedividedinto:ACenteringswingBEccentricswingtypeCEccentricrotaryDContinuousrotary正确答案：ABC第4题Thecharacteristicsofindirectpaperdeliveryare:A"ComplexstructureBHighpaperdeliveryaccuracyCLowpaperdeliveryaccuracyDPoormotionstability正确答案：AB第5题Thecharacteristicsofsurpassingthepapercontinuationmethodareasfollows:AComplexstructureBSuitableforhighspeedprintingCHighpositioningaccuracyofpaper正确答案：BCTest6.4第1题Thepaperdeliveryteethoftheeccentricswingpaperdeliverymechanismswingaround()AFixedaxisBAxisofmotion第2题Motiontrackofeccentricswingpaperdeliverytooth()AUnidirectionalarcBAclosedcurveCReciprocatingcurve第3题Thepaperdeliveryteethofthecontinuousrotarypaperdeliverymechanismarecharacterizedby:()AMountedonthetransferroller.BThepaperdeliverydrumrotatescontinuously.CMakeitsownswingmotionontherotatingdrumtorealizethehandoverofpaper.DThemechanismmovessmoothlywithoutexcessiveimpact.正确答案：ABCDTest7.1第1题Thefunctionofthedeliverypartofthesheet-fedoffsetpressis:()ATheprintedsheetisremovedfromthelast-colorimpressioncylinderandconveyedtothedeliverytable.BAtthedeliverytable,theprintedmatterislinedupbythepapermanagementmechanism.CStacktheprintedsheetsintostacks.DThemovingpaperisaccuratelytransferredbetweenthevariousprintingunits.正确答案：ABC第2题Printingpressesalsohavehigherdesignrequirementsfordeliverycomponents.detailsasfollows:AItcanreliablyandaccuratelyoutputtheprintedsheetsandstackthemneatlyonthedeliverytable.BWhenthepaperisdelivered,theprintingsideoftheprintedsheet,thatis,thegraphicside,usuallyfacesupwards,andhassufficientlightingtofacilitatetheoperatortoclearlyobservetheprintedproduct.CNodamagetopaper,nodirtypictures,nodirtyprints.DInordertoreducethedowntime,thereshouldbeadevicetoreplacethepaperstackwithoutstoppingthemachinetoensurenon-stopoperation.正确答案：ABCD第3题Thedeliverypartsofthesheet-fedprintingmachinearemainlycomposedof()andthedeliverytable.AThetake-uproller.BThetake-upconveyor.CTheantifoulingdevice.DTheReducerandpaperhandlingmechanism.正确答案：ABCD第4题Theanti-foulingdeviceisalsoananti-scratchdevice.Themainanti-scratchmeasuresare:()ATheskeletondeliverydrum.BThestarwheeltake-uproller.CTheair-cushionedtake-uproller.DThesuctionguide.正确答案：ABCD第5题Thecharacteristicsofthechaindeliverytransferdeviceare:().AAllowssufficientdryingtimefortheprintedsheet.BThelengthofthedeliverychaindependsonthegenerallayoutofthemachine,theshorterthechain,themorecompactandeconomicalthemachineis.CItcanmeettherequirementsofdrying,dusting,antifouling,deceleration,smoothing,andstabledeliveryofprintedsheets.正确答案：ABC第6题Thecharacteristicsofchaintransferpaperare:()AThechainwillstretchafterwear,anditisdifficulttomaintainahightransmissionaccuracy.BItissuitableforoccasionswherethedistancebetweencolorgroupsislarge.CCompact.DAdjustmentandmaintenancearenotconvenientenough.正确答案：AB第7题Thefunctionofthepaperturningmechanismis()AMaketheprintingpressgothroughaprintingprocesstoprintonbothsidesofthepaper.BPassthepaper.CMakeprintinginkeasytodry.第8题Themethodsofpapertransferbetweenunitsareasfollows:()AThepaperdeliverymechanismdeliversthepaperBChainpasspaperCRollertransfer正确答案：BC第9题Whenusingthetransferrollermethodtotransferthepaper,thenumberoftransferrollersbetweenthetwocolorgroupsshouldbe()AOddnumberBEvennumberCBothoddandevennumbersareacceptable.Test7.2第1题Thefunctionofthedeliverypartofthesheet-fedoffsetpressis:()ATheprintedsheetisremovedfromthelast-colorimpressioncylinderandconveyedtothedeliverytable.BAtthedeliverytab