《汽车发动机构造（双语课程）》习题-项目五 任务一 机油压力测试（无答案）

项目五任务一机油压力测试Item5Task1Oilpressuretest一、判断题（对“√”，错“×”）（20题）Ⅰ.Trueorfalsequestions（True“√”,false“×”）（20questions）1.发动机润滑系统主要由油底壳、机油泵、机油滤清器、机油喷嘴、油路等组成。（）1.Theenginelubricationsystemismainlycomposedofoilpan,oilpump,oilfilter,oilnozzle,oilcircuit,etc.()2.润滑作用的好坏，关键在于能否形成油膜。（）2.Thekeytothequalityoflubricationiswhetheranoilfilmcanbeformed.()3.机油滤清器工作的好坏，决定着发动机的工作性能和使用寿命，故必须定期更换滤芯。（）3.Theworkoftheengineoilfilterdeterminestheworkingperformanceandservicelifeoftheengine,sothefilterelementmustbereplacedregularly.()4.机油滤清器主要由上盖、壳体、滤芯、内孔管、旁通阀等组成。（）4.Engineoilfilterismainlycomposedofuppercover,shell,filterelement,innerholepipe,bypassvalveandsoon.()5.在新机油滤清器的衬垫上需要涂抹一层干净的发动机机油。（）5.Acleanlayerofengineoilneedstobeappliedtothelinerofthenewoilfilter.()6.佩戴防护服和手套，用肥皂和水彻底清洗皮肤，或使用免水型洗手剂清除所用的发动机机油。切勿使用汽油、稀释剂或溶剂。（）6.Wearprotectiveclothingandgloves,washskinthoroughlywithsoapandwater,oruseawaterlesshandsanitizertoremoveusedengineoil.Neverusegasoline,thinners,orsolvents.()8.机油变黑说明机油已经变质。（）8.Theengineoilturningblackindicatesthattheengineoilhasdeteriorated.()9.对负荷大，相对运动速度高的摩擦面均采用压力润滑，所以活塞与气缸壁之间一般也采用压力润滑。（）9.Pressurelubricationisusedforthefrictionsurfacewithlargeloadandhighrelativemotionspeed.Therefore,pressurelubricationisgenerallyusedbetweenthepistonandthecylinderwall.()10.润滑系中旁通阀一般安装在粗滤器中，其功用是限制主油道的最高压力。（）10.Thelubricationbypassvalveisgenerallyinstalledinthecoarsefilter,anditsfunctionistolimitthemaximumpressureofthemainoilpassage.()11.细滤器能过滤掉很小的杂质和胶质，所以经过细滤器过滤的润滑油应直接流向机件的润滑表面。（）11.Thefinefiltercanfilteroutverysmallimpuritiesandgum,sothelubricatingoilfilteredbythefinefiltershouldflowdirectlytothelubricationsurfaceofthemachine.()12.排放机油时应该注意机油不要流在手上，以免烫到手，并且废机油中有多种有害物质，不要长时间接触。（）12.Whendischargingengineoil,weshouldpayattentiontotheengineoilnottoflowonthehand,soasnottoburnthehand,andthereareavarietyofharmfulsubstancesinthewasteengineoil,donotcontactforalongtime.()13.发动机更换保养时，更换机油时，放油螺栓衬垫每次都必须更换。（）13.Whentheengineisreplacedandmaintained,theoildrainboltlinermustbereplacedeverytimewhentheengineoilisreplaced.()15.油压警告灯是机油压力过低的警告装置。（）15.Oilpressurewarninglightisawarningdevicethatoilpressureistoolow.()16.为保证发动机部件得到良好润滑，润滑油路中机油压力越高越好。（）16.Toensuregoodlubricationofenginecomponents,thehighertheoilpressureinthelubricationcircuit,thebetter.()17.气缸磨损过大会造成机油消耗过多。（）17.Excessivecylinderwearcancauseexcessiveoilconsumption.()18.油底壳为了加工方便，一般各处是等深的。（）18.Fortheconvenienceofprocessing,theoilpanisgenerallydeepeverywhere.()19.机油细滤器滤清能力强，所以经过细滤器滤清后的机油直接流向润滑表面。（）19.Theoilfinefilterhasstrongfilteringability,sotheoilfilteredbythefinefilterflowsdirectlytothelubricationsurface.()20.加注润滑油时，加入量越多，越有利于发动机的润滑。（）20.Whenaddinglubricatingoil,themoreitisadded,themorebeneficialitisforthelubricationoftheengine.()二.单选题（12题）Ⅱ.Multiplechoicequestions(Selectonlyoneanswerchoice)（12questions）1.润滑系中旁通阀的作用是（）。1.Thefunctionofthelubricationbypassvalveisto().A.保证主油道中的最小机油压力A.ensureminimumoilpressureinthemainoilpassageB.防止主油道过大的机油压力B.preventexcessiveoilpressureinthemainoilpassageC.防止机油粗滤器滤芯损坏C.preventdamagetotheprimaryoilfilterelementD.在机油粗滤器滤芯堵塞后仍能使机油进入主油道内D.allowoiltoenterthemainoilpassageevenaftertheprimaryoilfilterelementisblocked2.发动机润滑系的功用是（）。2.Thefunctionoftheenginelubricationsystemis().A.冷却B.润滑C.清洁、密封 D.润滑、冷却、清洁、密封A.cooling B.lubrication C.Cleaningandsealing D.lubrication,cooling,cleaning,sealing3.汽车发动机各零件最理想的摩擦形式是（）。3.Themostidealformoffrictionforeachpartoftheautomobileengineis().A.干摩擦B.半干摩擦C.液体摩擦D.半液体摩擦A.dryfriction B.semi-dryfrictionC.liquidfriction D.Semi-liquidfriction4.润滑系中旁通阀的作用是（）。4.Thefunctionofthelubricationbypassvalveisto().A.保证主油道中的最小机油压力A.ensureminimumoilpressureinthemainoilpassageB.防止主油道过大的机油压力B.preventexcessiveoilpressureinthemainoilpassageC.防止机油粗滤器滤芯损坏C.preventdamagetotheprimaryoilfilterelementD.在机油粗滤器滤芯堵塞后仍能使机油进入主油道内D.allowoiltoenterthemainoilpassageevenaftertheprimaryoilfilterelementisblocked5.活塞通常采用的润滑方式是（）。5.Thelubricationmethodusuallyusedbypistonis().A.压力润滑B.飞溅润滑C.两种润滑方式都有D.润滑方式不确定A.pressurelubricationB.splashlubricationC.BothlubricationmethodshaveD.Thelubricationmethodisuncertain6.发动机润滑系中润滑油的正常油温是（）。6.Thenormaloiltemperatureoflubricatingoilintheenginelubricationsystemis().A.40～50℃B.50～70℃C.70～90℃D.大于100℃7.曲轴连杆轴承处的润滑油多来于（）。7.Thelubricatingoilatthecrankshaftconnectingrodbearingismostlyfrom().A.曲轴主轴径B.凸轮轴轴径C.活塞与气缸壁A.crankshaftmainshaftdiameter B.camshaftshaftdiameter C.pistonandthecylinderwall8.机油中铁的微粒含量过高，其原因可能为（）。8.Thecontentofironparticlesinengineoilistoohigh,andthereasonsmaybe().A.气缸磨损严重 B.轴承磨损严重 C.曲轴箱通风不良A.Seriouscylinderwear B.Seriousbearingwear C.Poorcrankcaseventilation9.（）不可能导致机油压力低的故障。9.()maynotleadtolowoilpressurefailure.A.油底壳中机油不足A.TheengineoilisinsufficientintheoilpanB.曲轴瓦、连杆瓦与曲轴之间的配合间隙过大B.Thematingclearancebetweenthecrankshafttile,theconnectingrodtileandthecrankshaftistoolargeC.液压挺柱泄漏C.hydraulictappetleakageD.以上均不正确D.Noneoftheaboveiscorrect10.（）不可能导致机油压力高的故障。10.()maynotleadtohighoilpressurefailure.A.机油黏度过低A.TheengineoilviscosityistoolowB.曲轴瓦、连杆瓦与曲轴之间的配合间隙过小B.Thematingclearancebetweenthecrankshafttile,theconnectingrodtileandthecrankshaftistoosmallC.活塞环或汽缸壁磨损严重C.ThepistonringorcylinderwallisseriouslywornD.以上均不正确D.Noneoftheaboveiscorrect11.学生a说：油底壳用薄钢板冲压而成，其与机体结合面应该加垫片和密封胶密封。学生b说：油底壳用铸铁材料制造而成，其与机体结合面不应该加垫片和和密封胶密封。他们说法正确的是（）。11.Studentasaid:Theoilpanisstampedwiththinsteelplate,andthejointsurfacewiththebodyshouldbesealedwithgasketandsealant.Studentbsaid:Theoilpanismadeofcastironmaterial,andit