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ID:11922162
大小:57.50 KB
页数:20页
时间:2018-07-14
《轮机工程基础(marine engineering foundation)》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、轮机工程基础(MarineEngineeringFoundation)ThebasicconceptofstaticsAboutthemeaningofforce,thefollowing________iswrong.A.isoneofthebasicpropertiesofobjectsB.istheinteractionbetweenobjectsC.isduetothechangeofstateofmotionD.isduetoachangeintheshapeofanobjectAnswerAAboutthemeaningofforce,thefollowing_______
2、_iswrong.A.aslongasthereareobjectswillinevitablyexiststrongforce,istheintrinsicattributeofobjectB.istheinteractionbetweenobjects,anobjectdoesnotexistinisolationforceC.aslongasthemotionofanobjectchanges,theobjectwillbeforceD.aslongastheshapeoftheobjectischanged,theobjectwillbeforceAnswerATheforce
3、actingonanobjectis________.A.locationvectorB.slipvectorC.rotationvectorBidirectionalD.vectorAnswerAThefollowingistrue________.IfthetwoA.equalforce,thisforceisequaltotwoTheroleofB.inthebodyforcepositionvectorTheroleofC.twointheequivalentforceontherigidbodyconditionis:thesizeoftheforceisequaltothe
4、samedirection,thesamelineofactionD.forceistheslipvectorAnswerCWhentheforcemovesalongthelineofaction,theforceofanypointofthemomentwill________.TheincreaseofA.ThedecreaseofB.C.invariantD.cannotbedeterminedAnswerCTheinteractionbetweencontactobjects,therelativemotionorrelativemotiontrend,whiletherei
5、sfrictiononthecontactsurface,thedirectionoffrictionalongthecontactsurface________.A.inthenormaldirectionB.tangentdirectionC.outsidethenormaldirectionD.AorCAnswerBIntheplane,thetorqueis________.A.vectorB.locationvectorTheamountofC.algebraD.constantAnswerCOntherigidbody,tokeepinthemomentandthesize
6、ofthesameconditions,theroleof________inmobilecouplecoupleinanyplane.A.B.incertainconditionsC.cannotD.cannotbedeterminedAnswerATwoacoupleofequivalent,thearmof________.A..B.rangeC.doesnotnecessarilyequalD.rangeAnswerCThetorquevector________couplesurface.PerpendiculartotheA.B.andthetorqueangleof30D
7、EGParalleltoC.D.andthearmatanangleof30degreesAnswerAThecouplemomentvectoralongthedirectionof________,accordingto________todetermine.A.normal/lefthandedscrewruleB.tangent/lefthandedscrewruleC.normal/right-handruleD.tangent/ri
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