机械专业英语试题及其答案.docx

机械专业英语试题及其答案.docx

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WORD完美整理版

XX交 通 大 学 试 卷

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2009～2010学年第2学期

课程 机械工程专业英语

课程性质（□必修□限选□任选） 考试方式（□闭卷□开卷）

一、选择题（在每题四个备选答案中选出一个正确答案，本大题共15小题，每小题1分，总计15分）

范文范例

参考指导

教研室主任

（签字）

1.Ifallpointsinalinkagemoveinparallelplanesthesystemundergoesplanar

m

装 otionandthelinkagemaybedescribedasa .

A.planarmotion B.planarlinkage C.joints D.slide

2.Thoughframematerialanddesignshouldhandledamping, aresometimesbuiltintoframesectionstohandlespecificproblems.

A.beams B.holes C.dampers D.screw

3.Themaximumallowabledeflectionofashaft determinedbycriticalspeed,gear,orbearingrequirements.

A.often B.must C.was D.isusually

4.Wewillhaveto tobetterandbettersolutionsaswegeneratemoreinformation.

A.repeatmanytimes B.iterating C.iterate D.tryways

5.

订 Ifaproductconfigurationis specifiedandthenexaminedtodetermine

whethertheperformancerequirementsaremet.

A.finally B.tentatively C.temporary D.havebeen

6.Manufacturingcanbedefinedasthe ofrawmaterialsintousefulproductsthroughtheuseoftheeasiestandlest-expensivemethods.

A.transformation B.processing C.process D.transforming

7.Theplanerandkneetypesofmillingmachineis becauseofitsflexibility.

A.usedmostcommonly B.mostpopular

C.themostcommonlyused D.mostpowerful

8.Asaresult,thesystemwillvibrateatthefrequencyofthe forceregardlessoftheinitialconditionsornaturalfrequencyofthesystem.

线 A.action B.excitation C.out D.act

9.Beforetwocomponentsareassembledtogether,therelationshipbetweenthedimensionsofthematingsurfaces .

A.mustbegivingout B. shouldprintedclearly

学院院长（系主任）

（签字）

C.mustbespecified D.shouldbeclearlynoted

10.Themainpracticaladvantageoflowerpairsistheirbetterabilitytotraplubricantbetweentheir surfaces.

A.enveloping B.matingC.outer D.outside

11.Theword itselfusuallyreferstothedeteriorationofmetalsandceramics,whilesimilarphenomenainplasticsgenerallycalled .

A.recrystallization….corrosion B.recrystallization…degradation

题号

一

二

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得分

C.degradation…corrosion D.corrosion…degradation

12.Mostframes castiron,weldsteel,composition,orconcrete.

A.aremadefrom B.aremadeupof

C.wasproducedby D.wasconsistof

13.Rotatingshaftsparticularlythosethatrunathighspeeds,mustbedesignedtoavoidoperationat speeds.

A.low B.overload C.critical D.hollow

14.Althoughcastironisafairlycheapmaterial,eachcastingrequiresa .

A.pattern B.model C.mold D.patent

15.Theterm isusedtodescribejointswithsurfacecontact,aswithapinsurroundedbyahole.

A.highpair B.lowpair C.surfacepair D.rotarypair

二、完型填空（在每个小题四个备选答案中选出一个正确答案，本大题共15小题，每小题1分，总计15分）

Thetermshaftusuallyreferstoarelativelylongmemberofroundcrosssectionthatrotatesandtransmitspower.Oneormorememberssuchasgears,sprockets,pulleys,andcamsareusually（16）totheshaftbymeansofpins,keys,splines,snaprings,andotherdevices.Theselattermembersareamongthe“associatedparts”consideredinthistext,asarecouplingsanduniversaljoint,whichserveto（17）theshafttothesourceofpowerorload.

Ashaftcanhaveanoroundcrosssection,antitneednotnecessarilyrotate.Itcanbestationaryandserveto（18）arotatingmember,suchastheshortshaftsthatsupportthenondrivingwheelsofanautomobile.Theshaftssupporting（19）gearscanbeeitherrotatingorstationarydependingon（20）thegearisattachedtotheshaftorsupportedbyitthroughbearings.

Itisapparentthatshaftscanbesubjectedtovariouscombinationsofaxial,bending,and（21）loads,andthattheseloadsmaybestaticorfluctuating.Typically,arotatingshafttransmittingpoweris（22）toaconstanttorque（producingameantorsionalstress）togetherwithacompletelyreversedbendingload（producinganalternatingbendingstress）.

Inadditiontosatisfying（23）requirements,shaftsmustbedesignedsothatdeflectionsarewithinacceptablelimits.Excessive（24）shaftsdeflectioncanhampergearperformanceandcause（25）noise.Theassociatedangulardeflectioncanbeverydestructivetono-self-aligningbearings（eitherplainorrolling）.（26）deflectioncanaffecttheaccuracyofacamorgeardrivenmechanism.Furthermore,thegreatertheflexibility-eitherlateralortorsional-thelowerthecorresponding（27）speed.

考生注意：

考试时间 120 分钟 试卷总分100分 共 5 页第1页

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Sometimesmemberslikegearsandcamsaremade（28）withshaft,butmoreoftensuchmembers（whichalsoincludepulleys,sprockets,etc）aremadeseparatelyandthen（29）shaft.Theportionofth