《汽車發(fā)動(dòng)機(jī)構(gòu)造（雙語課程）》習(xí)題-項(xiàng)目一 任務(wù)一 發(fā)動(dòng)機(jī)總體構(gòu)造及安全操作規(guī)程（無答案）

項(xiàng)目一任務(wù)一發(fā)動(dòng)機(jī)總體構(gòu)造及安全操作規(guī)程Item1Task1Useofcommontoolsandmeasuringtoolsforautomobileengines一.判斷題（對(duì)“√”，錯(cuò)“×”）（41題）Ⅰ.Trueorfalsequestions（True“√”,false“×”）（41questions）1.汽車的動(dòng)力源是起動(dòng)機(jī)。（）1.Thepowersourceofthecaristhestarter.()2.活塞環(huán)包括氣環(huán)和水環(huán)兩種。（）2.Pistonringincludestwokindsofgasringandwaterring.()3.曲柄連桿機(jī)構(gòu)由機(jī)體組、活塞連桿組和曲軸飛輪組等三部分構(gòu)成。（）3.Thecrankconnectingrodmechanismiscomposedofthreeparts:bodygroup,pistonconnectingrodgroupandcrankshaftflywheelgroup.()4.四沖程發(fā)動(dòng)機(jī)的工作循環(huán)包括四個(gè)活塞行程，即進(jìn)氣、作功、和排氣。（）4.Theworkingcycleofafour-strokeengineconsistsoffourpistonstrokes,namely,intake,work,andexhaust.()5.在安裝氣環(huán)時(shí)，各個(gè)氣環(huán)的切口應(yīng)該錯(cuò)位。（）5.Wheninstallinggasrings,thecutsofeachgasringshouldbemisaligned.()6.氣門式配氣機(jī)構(gòu)由氣門組和氣門起動(dòng)組組成。（）6.Thevalvevalvemechanismiscomposedofavalvegroupandavalvestartinggroup.()7.氣門彈簧座是通過安裝在氣門桿尾部的凹槽或圓孔中的鎖片或鎖銷固定的。（）7.Thevalvespringseatisfixedbyalockpieceorlockpininstalledinthegrooveorroundholeattheendofthevalverod.()8.強(qiáng)制冷卻水在發(fā)動(dòng)機(jī)內(nèi)進(jìn)行循環(huán)的裝置是水泵。（）8.Thedevicethatforcesthecoolingwatertocirculateintheengineisthepump.()9.發(fā)動(dòng)機(jī)的曲柄連桿機(jī)構(gòu)采用壓強(qiáng)潤滑和飛濺潤滑相結(jié)合的潤滑方式。（）9.Thecrankconnectingrodmechanismoftheengineadoptsthelubricationmethodcombiningpressurelubricationandsplashlubrication.()10.機(jī)油泵常見的結(jié)構(gòu)形式有齒輪式和轉(zhuǎn)子式機(jī)油泵。（）10.Thecommonstructureofoilpumpisgeartypeandrotortypeoilpump.()11.活塞環(huán)有“三隙”：間隙、背隙和端隙。（）11.Thepistonringhas"threegaps":clearance,backclearanceandendclearance.()12.一般水冷式發(fā)動(dòng)機(jī)的冷卻水溫最佳范圍為25—35℃。（）12.Thebestrangeofcoolingwatertemperatureofgeneralwater-cooledengineis25-35℃.()13.曲軸變形，主要是指曲軸的彎曲變形。（）13.Crankshaftdeformation,mainlyreferstothebendingdeformationofthecrankshaft.()14.將油箱中的燃油吸出來并送到燃油分配管中的元件是活塞。（）14.Theelementthatsucksthefueloutofthetankandsendsittothefueldistributionpipeisthepiston.()15.檢查曲軸的彎曲度，一般是檢查曲軸的圓跳動(dòng)量。（）15.Checkthecurvatureofthecrankshaft,generallycheckthecircularrunoutofthecrankshaft.()16.汽油機(jī)常見的燃燒室形狀有盤形球形兩種類型。（）Thecommoncombustionchambershapeofgasolineenginehastwotypesofdiscshapeandballshape.()17.曲軸的裂紋多發(fā)生在曲軸臂與軸柄頸之間的過渡圓角處及油孔處。（）17.Thecracksofcrankshaftmostlyoccuratthetransitioncornersandoilholesbetweenthecrankshaftarmandtheshafthandleneck.()18.氣缸磨損程度的技術(shù)狀祝是發(fā)動(dòng)機(jī)是否需進(jìn)行總成修理的決定性標(biāo)志。（）Thetechnicalindicationofthedegreeofcylinderwearisadecisiveindicatorofwhethertheengineisinneedofassemblyrepair.()19.活塞的最大磨損部位一般是群部。（）Thelargestwearpartofthepistonisgenerallygrouppart.()20.活塞銷與活塞銷座孔及連桿小頭的連接方式有全浮式和沉浸式兩種。（）20.Thepistonpinandthepistonpinseatholeandtheconnectingrodsmallheadareconnectedintwoways:fullfloatingandimmersion.()21.非增壓發(fā)動(dòng)機(jī)在進(jìn)氣結(jié)束時(shí)，氣缸內(nèi)壓力小于外界大氣壓。（）21.Attheendofintake,thepressureinthecylinderislessthantheexternalatmosphericpressure.()22.發(fā)動(dòng)機(jī)在排氣結(jié)束時(shí)，氣缸內(nèi)壓力小于外界大氣壓。（）22.Attheendoftheexhaustoftheengine,thepressureinthecylinderislessthantheoutsideatmosphericpressure.()23.點(diǎn)火系統(tǒng)將低壓變?yōu)楦邏菏怯牲c(diǎn)火線圈和斷電器共同完成的。（）23.Theignitionsystemchangesthelowpressureintohighpressurebytheignitioncoilandthebreaker.()24.曲軸正時(shí)齒輪是由凸輪軸正時(shí)齒輪驅(qū)動(dòng)的。（）24.Thecrankshafttiminggearisdrivenbythecamshafttiminggear.()25.離心式點(diǎn)火提前裝置是在發(fā)動(dòng)機(jī)負(fù)荷一定,發(fā)動(dòng)機(jī)轉(zhuǎn)速發(fā)生變化時(shí)起作用,真空式點(diǎn)火提前機(jī)構(gòu)是發(fā)動(dòng)機(jī)轉(zhuǎn)速一定,負(fù)荷發(fā)生變化時(shí)起作用（）25.Centrifugalignitionadvancedeviceworkswhentheengineloadisfixedandtheenginespeedchanges,andvacuumignitionadvancemechanismworkswhentheenginespeedisfixedandtheloadchanges()26.壓縮比等于氣缸工作容積與燃燒室容積的比值。（）26.Thecompressionratioisequaltotheratiooftheworkingvolumeofthecylindertothevolumeofthecombustionchamber.()27.為防止缸蓋變形,擰緊缸蓋螺栓的步驟是先中間、后四周,一次性按規(guī)定力矩?cái)Q緊。（）27.Topreventdeformationofthecylinderhead,thestepsfortighteningthecylinderheadboltsaretostartinthemiddleandthenaround,andtightenatonceaccordingtothespecifiedtorque.28.蠟式節(jié)溫器失效后無法修復(fù),應(yīng)按照其安全壽命定期更換。（）28.Thewaxthermostatcannotberepairedafterfailureandshouldbereplacedregularlyaccordingtoitssafelife.()29.曲桿連柄機(jī)構(gòu)是在高溫、高壓以及有化學(xué)腐蝕的條件下工作的。（）29.Thecrankandhandlemechanismworksunderhightemperature,highpressureandchemicalcorrosion.()30.氣門間隙是指氣門與氣門座之間的間隙。（）30.Thevalveclearancereferstotheclearancebetweenthevalveandthevalveseat.()31.凸輪軸的轉(zhuǎn)速比曲軸的轉(zhuǎn)速快一倍。（）31.Thespeedofthecamshaftistwicethatofthecrankshaft.()32.過量空氣系數(shù)越大,則可燃混合氣的濃度越濃。（）32.Thegreatertheexcessaircoefficient,thegreatertheconcentrationofthecombustiblemixture.()33.蠟式節(jié)溫器失效后,發(fā)動(dòng)機(jī)易出現(xiàn)過熱現(xiàn)象。（）33.Afterthewaxthermostatfails,theengineispronetooverheating.()34.汽車舉升機(jī)可按照形狀、功能及占用空間的不同進(jìn)行分類。（）34.Carliftmachinecanbeclassifiedaccordingtoshape,functionandoccupyspace.()35.剪式汽車舉升機(jī)操作前即使車內(nèi)的行李物品重量很輕，也需將其搬出車外。（）35.Beforetheoperationofthescissorcarliftmachine,eveniftheluggageinthecarisverylight,itneedstobemovedoutofthecar.()36.剪式汽車舉升機(jī)下降操作時(shí)，直接按下“下降”按鈕即可完成下降操作。（）36.Whenthescissorcarliftmachineisdescending,thedescendingoperationcanbecompletedbypressingthe'down'buttondirectly.()37.清潔就是清掃。（）37.Cleaningissweeping.()38.修理汽油箱前，應(yīng)用專用溶液或水清除油箱內(nèi)的殘余油氣。但在清洗時(shí)不得吸煙，不得在旁邊烘烤零件或點(diǎn)燃噴燈。（）38.Beforerepairingthegasolinetank,applyspecialsolutionorwatertoremovetheresidualoilandgasinthetank.Butdonotsmokewhilecleaning,donotbakethepartsorlighttheblowtorchnexttoit.()39.蓄電池應(yīng)輕搬輕放，不可歪斜，以防電解液潑出腐蝕人體皮膚和衣服。（）39.Thebatteryshouldbecarriedlightlyandnottiltedtopreventtheelectrolytefromspillingoutandcorrodinghumanskinandclothes.()40.6S是指整理、整頓、清掃、清潔、素養(yǎng)、防護(hù)。（）40.6Sreferstofinishing,rectification,sweeping,cleaning,literacy,protection.()41.維修工具可以在實(shí)際工作中混用。（）41.Maintenancetoolscanbemixedinpracticalwork.()二.單選題（34題）Ⅱ.Multiplechoicequestions(Selectonlyoneanswerchoice)（34questions）1.發(fā)動(dòng)機(jī)工作時(shí)，曲軸的正時(shí)齒輪帶動(dòng)下列哪一個(gè)部件工作（）1.Whentheengineisworking,thetiminggearofthecrankshaftdriveswhichofthefollowingpartstowork()A.進(jìn)排氣凸輪軸B.飛輪C.噴油器D.節(jié)氣門A.IntakeandexhaustcamshaftB.FlywheelC.InjectorD.Throttlevalve2.在某些發(fā)動(dòng)機(jī)凸輪軸蓋上有時(shí)會(huì)標(biāo)有DOHC，那么DOHC是表示（）。2.DOHCissometimesmarkedonthecamshaftcoverofsomeengines,soDOHCstandsfor().A.單頂置凸輪軸B.雙頂置凸輪軸C.新型電噴發(fā)動(dòng)機(jī)D.缸內(nèi)噴射A.SingleoverheadcamshaftB.DoubleoverheadcamshaftC.NewtypeofelectronicfuelinjectionengineD.In-cylinderinjection3.學(xué)生a說：在齒輪傳動(dòng)中，斜齒輪比正齒輪嚙合更為平穩(wěn)，噪聲更??；學(xué)生b說：在拆裝發(fā)動(dòng)機(jī)的時(shí)候，配氣機(jī)構(gòu)的拆裝要觀察原機(jī)體上有沒有正時(shí)記號(hào)，沒有的話要認(rèn)真做好記號(hào)，備裝配的時(shí)候用。下列說法正確的是（）3.Studentasaid:ingeartransmission,thehelicalgearmeshesmoresmoothlyandmakeslessnoisethanthespurgear;Studentbsaid:whendisassemblingtheengine,thedisassemblyandassemblyofthevalvemechanismshouldobservewhetherthereisatimingmarkontheoriginalbody,ifnot,itshouldbecarefullymadeamarkforassembly.Thefollowingstatementiscorrect()A.只有學(xué)生a正確B.只有學(xué)生b正確C.學(xué)生a和b都正確D.兩個(gè)都錯(cuò)誤A.Onlystudentaiscorrect B.OnlystudentBiscorrect C.Bothstudentsaandbarecorrect D.Botharewrong4.在電控發(fā)動(dòng)機(jī)的供油系統(tǒng)中，油壓調(diào)節(jié)器的作用是（）。4.Intheoilsupplysystemoftheelectronicallycontrolledengine,thefunctionoftheoilpressureregulatoris().A.控制燃油分配管中的壓力恒定A.ControltheconstantpressureinthefueldistributionpipeB.在節(jié)氣門開度大時(shí)燃油壓力變小B.Whenthethrottleopeningislarge,thefuelpressurebecomessmaller.C.燃油壓力與進(jìn)氣管壓力之差保持恒定C.ThedifferencebetweenthefuelpressureandtheintakepipepressureremainsconstantD.進(jìn)氣管壓力大時(shí)燃油壓力小D.Whentheintakepipepressureislarge,thefuelpressureissmall5.現(xiàn)代汽車發(fā)動(dòng)機(jī)普遍采用多氣門結(jié)構(gòu)，其作用是為了（）5.Modernautomobileenginesgenerallyusemulti-valvestructure,itsroleisto()A.提高點(diǎn)火性能B.提高噴油性能C.減小爆震D.提高充氣效率A.ImproveignitionperformanceB.improvefuelinjectionperformanceC.reduceknockD.Improveinflationefficiency6.發(fā)動(dòng)機(jī)溫度過熱時(shí)，以下哪個(gè)描述是錯(cuò)誤的？（）6.Whichofthefollowingstatementsisfalsewhentheenginetemperatureisoverheated?()A.將使發(fā)動(dòng)機(jī)熄火困難A.willmakeitdifficulttostalltheengineB.將使汽油機(jī)爆燃或早燃B.willmakethegasolineenginedeflaggingorearlyignitionC.將使汽油機(jī)容易熄火C.willmakethegasolineengineeasytostallD.將使發(fā)動(dòng)機(jī)經(jīng)濟(jì)性變好D.willmaketheenginemoreeconomical7.正常工作的發(fā)動(dòng)機(jī)，其機(jī)油泵的限壓閥應(yīng)該是（）7.Thenormaloperationoftheengine,theoilpumppressurelimitingvalveshouldbe()A.經(jīng)常處于關(guān)閉狀態(tài)A.OftenintheclosedstateB.熱機(jī)時(shí)開，冷機(jī)時(shí)關(guān)B.Whentheheatengineison,thecoldmachineisoffC.經(jīng)常處于溢流狀態(tài)C.OftenintheoverflowstateD.熱機(jī)時(shí)關(guān)、冷機(jī)時(shí)開D.Whentheheatengineisoff,thecoldmachineison8.從各缸的進(jìn)、排氣凸輪軸的排列，我們可以判斷出發(fā)動(dòng)機(jī)的（）8.Fromthearrangementoftheinletandexhaustcamshaftofeachcylinder,wecanjudgethe()ofthestartingmotor.A.轉(zhuǎn)速B.工作順序C.氣門的遲閉角D.氣門的提前角A.SpeedB.WorkingsequenceC.LateclosingangleofthevalveD.Advanceangleofthevalve9.學(xué)生a說：氣門彈簧折斷時(shí)，將會(huì)影響發(fā)動(dòng)機(jī)的工作，嚴(yán)重時(shí)會(huì)造成事故；學(xué)生b說：氣門彈簧折斷時(shí)，進(jìn)排氣門可以開啟得更快，增加進(jìn)排氣量。下列說法正確的是（）9.Studentasaid:Whenthevalvespringisbroken,itwillaffecttheworkoftheengineandcauseaccidentsinseriouscases;Studentbsaid:Whenthevalvespringisbroken,theintakeandexhaustvalvescanbeopenedfastertoincreasetheintakeandexhaustvolume.Thefollowingstatementiscorrect()A.只有學(xué)生a正確B.只有學(xué)生b正確C.學(xué)生a和b都正確D.兩個(gè)都錯(cuò)誤A.Onlystudentaiscorrect B.OnlystudentBiscorrect C.Bothstudentsaandbarecorrect D.Botharewrong10.曲軸每旋轉(zhuǎn)兩圈，凸輪軸將旋轉(zhuǎn)多少圈（）10.Howmanyrevolutionswillthecamshaftrotateforeverytworevolutionsofthecrankshaft?A.兩圈 B.一圈C.三圈D.半圈A.Twoturns B.Oneturn C.Threeturns D.Halfacircle11.發(fā)動(dòng)機(jī)零件最主要的耗損形式是（）11.Themostimportantformofenginepartswearis().磨損 .腐蝕 .疲勞 .變形 B.corrosion C.fatigue D.deformation12.現(xiàn)代高級(jí)轎車多采用了液壓挺柱，我們將無需調(diào)整（）12.Modernluxurycarsmostlyusehydraulictappets,wewillnotneedtoadjust()A.點(diǎn)火順序 B.火花塞間隙 C.噴油量 D.氣門間隙A.ignitionsequence B.sparkplugclearance C.fuelinjectionquantityD.valveclearance13.學(xué)生a說：活塞從上止點(diǎn)開始至進(jìn)氣門完全關(guān)閉的曲軸轉(zhuǎn)角叫進(jìn)氣遲后角；學(xué)生b說：從排氣門打開至下止點(diǎn)所轉(zhuǎn)過的曲軸轉(zhuǎn)角叫排氣提前角。下列說法正確的是（）13.Studentasaid:Thepistonangleofthecrankshaftfromtopdeadcentertotheintakevalvecompletelyclosediscalledtheintakelaterearangle;Studentbsaid:ThecrankshaftAnglerotatedfromtheopeningoftheexhaustvalvetothebottomdeadcenteriscalledtheexhaustadvanceangle.Thefollowingstatementiscorrect()A.只有學(xué)生a正確B.只有學(xué)生b正確C.學(xué)生a和b都正確D.兩個(gè)都錯(cuò)誤A.Onlystudentaiscorrect B.Onlystudentbiscorrect C.Bothstudentsaandbarecorrect D.Botharewrong14.學(xué)生a說：由于進(jìn)、排氣門的早開和遲閉，就會(huì)有一段時(shí)間內(nèi)進(jìn)、排氣門同時(shí)開啟的現(xiàn)象，這種現(xiàn)象稱為氣門重疊，重疊的曲軸轉(zhuǎn)角稱為氣門重疊角；學(xué)生b說：我們?cè)O(shè)置適宜的氣門重疊角，可以利用氣流壓差和慣性對(duì)燃燒室進(jìn)行掃氣，清除殘余廢氣，增加新鮮空氣充量。下列說法正確的是（）14.Studentasaid:Duetotheearlyopeningandlateclosingoftheintakeandexhaustvalves,therewillbeaperiodoftimewhentheintakeandexhaustvalvesareopenedatthesametime.Thisphenomenoniscalledvalveoverlap,andtheoverlappingcrankshaftangleiscalledvalveoverlapangle;Studentbsaid:Wesetanappropriatevalveoverlapangle,whichcanmakeuseofairflowpressuredifferenceandinertiatosweepthecombustionchamber,removeresidualExhaustgas,andincreasefreshaircharge.Thefollowingstatementiscorrect()A.只有學(xué)生a正確B.只有學(xué)生b正確C.學(xué)生a和b都正確D.兩個(gè)都錯(cuò)誤A.Onlystudentaiscorrect B.Onlystudentbiscorrect C.Bothstudentsaandbarecorrect D.Botharewrong15.（）會(huì)引起發(fā)動(dòng)機(jī)的上、下、左、右振動(dòng)。15.()willcausetheupper,lower,leftandrightvibrationsoftheengine..氣體作用力.離心力.往復(fù)慣性力.摩擦力Frictionforce16.排氣門的錐角一般為（）16.Theconeangleoftheexhaustvalveisgenerally()A．30°B．45°C．60°D．50°17.氣壓檢驗(yàn)法檢測(cè)氣門密封性時(shí)，儲(chǔ)氣筒內(nèi)氣壓值，在0.5分鐘內(nèi)氣壓值降低至少不大于（），說明氣門密封性良好。17.Whenthevalvesealingisdetectedbythepressuretestmethod,thepressurevalueinthegasstoragecylinderisreducedbyatleastnotmorethan()within0.5minutes,indicatingthatthevalvesealingisgood.A.10%B.15%C.20%D.25%18.下述各零件不屬于氣門驅(qū)動(dòng)組的是（）。18.Thefollowingpartdonotbelongtothevalvedrivegroupisthe().A.正時(shí)鏈條B.凸輪軸正時(shí)齒輪C.曲軸正時(shí)齒輪D.凸輪軸A.timingchain B.camshafttiminggear C.crankshafttiminggear D.camshaft19.發(fā)動(dòng)機(jī)氣缸磨損的檢驗(yàn)，主要測(cè)量其（）19.Enginecylinderweartest,mainlymeasureits().直線度和同軸度.平行度和平面度parallelismandplanarity.垂直度和圓跳動(dòng).圓度和圓柱度Roundnessandcylindricity20.凸輪軸上凸輪的輪廓的形狀決定于（）。20.TheshapeofthecontouroftheCAMonthecamshaftisdeterminedby().A.氣門的升程B.氣門的運(yùn)動(dòng)規(guī)律C.氣門的密封狀況D.氣門的磨損規(guī)AvalveliftB.valvemotionlawC.valvesealstatusD.weargaugeforvalve21.活塞與氣缸壁之間的潤滑方式是（）。.壓力潤滑.飛濺潤滑.脂潤滑.壓力潤滑和飛濺潤滑同時(shí)進(jìn)行pressurelubricationandsplashlubricationareperformedsimultaneously22.機(jī)油粗濾器上裝有旁通閥，當(dāng)濾芯堵塞時(shí)，旁通閥打開（）。22.Thecrudeoilfilterisequippedwithabypassvalve.Whenthefilterelementisblocked,thebypassvalveopensto.使機(jī)油不經(jīng)過濾芯，直接流回油底殼A.allowtheoiltoflowdirectlybacktotheoilpanwithoutpassingthroughthefilterelement.使機(jī)油直接進(jìn)入細(xì)濾器B.allowtheoiltodirectlyenterthefinefilter.使機(jī)油直接進(jìn)入主油道C.allowtheoildirectlyentryintothemainoilpassage.使機(jī)油流回機(jī)油泵D.allowoiltoflowbackintotheoilpump23.（）是汽車的動(dòng)力裝置？23.()isthepowerplantofthecar?.車身.底盤.電器設(shè)備.發(fā)動(dòng)機(jī)24.發(fā)動(dòng)機(jī)氣門間隙過大會(huì)造成氣門腳異響,可用（）來進(jìn)行測(cè)量氣門間隙。24.Theenginevalveclearanceistoolargetocausethevalvefootabnormalsound,()canbeusedtomeasurethevalveclearance..扳手.卡尺.厚薄規(guī) D.外徑千分尺 D.outermicrometer25.進(jìn)、排氣門在排氣上止點(diǎn)時(shí)（）。25.Whentheintakeandexhaustvalvesareattheexhausttopdeadcenter().A.進(jìn)氣門開,排氣門關(guān)B.排氣門開,進(jìn)氣門關(guān)A.Intakevalveopen,exhaustvalveclosedB.Exhaustvalveopen,intakevalveclosedC.排氣門全關(guān)D.進(jìn)、排氣門開C.Exhaustvalvesareclosed.D.Intakeandexhaustvalvesareopened26.四沖程發(fā)動(dòng)機(jī)的有效行程是指（）。26.Theeffectivestrokeofafour-strokeenginerefersto().A.壓縮行程B.作功行程C.排氣行程D.進(jìn)氣行程。A.compressionstrokeB.workstrokeC.exhauststrokeD.intakestroke.27.下述各零件不屬于氣門傳動(dòng)組的是（）。27.Thefollowingpartdonotbelongtothevalvedrivegroupis().A.氣門彈簧B.挺柱C.搖臂軸D.凸輪軸A.valvespringB.tappet C.rockerarmshaft D.camshaft28.發(fā)動(dòng)機(jī)的壓縮比是指（）之比。28.Thecompressionratiooftheenginereferstotheratioof().A.氣缸總?cè)莘e與燃燒室容積A.Totalcylindervolum