MOOC Structural Mechanics I-Beijing Jiaotong University 中國大學慕課答案

MOOCStructuralMechanicsI-BeijingJiaotongUniversity中國大學慕課答案Quiz-ClassificationofSupports1、問題：Arereactionsshowninthefigurecorrect?選項：A、正確B、錯誤正確答案:【錯誤】2,1Quiz1、問題：Thegeometricallyvariablesystemcannotinequilibriumunderanyload.選項：A、正確B、錯誤正確答案:【錯誤】2、問題：Arigidbodycanbearodorageometricallyinvariantsystemcomposedofseveralrigidplates.選項：A、正確B、錯誤正確答案:【正確】2.2Quiz1、問題：Thedegreeoffreedomofageometricallyinvariantsystemmustbeequaltozero.選項：A、正確B、錯誤正確答案:【錯誤】2、問題：Asystemwithredundantconstraintsmustbegeometricallyinvariant.選項：A、正確B、錯誤正確答案:【錯誤】2.3Quiz1、問題：Threerigidplatesconnectedbythreehingesare:選項：A、StableB、UnstableC、InstantaneouslyunstableD、Stable,unstable,orinstantaneouslyunstable正確答案:【Stable,unstable,orinstantaneouslyunstable】2、問題：Ifthethreerigidplatesareconnectedbythreesinglehingesoranysixlinks,thesystemmustbegeometricallyinvariant.選項：A、正確B、錯誤正確答案:【錯誤】3、問題：Ifthreerigidplatesareconnectedbythreevirtualhinges,whicharenotonthesamestraightline,thesystemisgeometricallyinvariantwithoutredundantconstraints.選項：A、正確B、錯誤正確答案:【正確】4、問題：Accordingtotheruleofthreerigidplates,thethreehingesarecollinear,soitisaninstantaneouslyunstablesystem.選項：A、正確B、錯誤正確答案:【錯誤】5、問題：Themotionproducedbytheinstantaneouslyunstablesystemisverysmallandquicklytransformedintoageometricinvariantsystem,soitcanbeusedasanengineeringstructure.選項：A、正確B、錯誤正確答案:【錯誤】2.4Quiz1、問題：Thesystemiscomposedoftworigidplatesconnectedbythreelinks.Itis:選項：A、UnstableB、StableC、InstantaneouslyunstableD、Stable,unstable,orinstantaneouslyunstable正確答案:【Stable,unstable,orinstantaneouslyunstable】2、問題：Tworigidplatesconnectedbythreelinksatonepointformageometricallyinvariantsystem.選項：A、正確B、錯誤正確答案:【錯誤】3、問題：Thestructureisanunstablestructure..選項：A、正確B、錯誤正確答案:【錯誤】4、問題：Thestructureshownbelowisastablestructure.選項：A、正確B、錯誤正確答案:【錯誤】5、問題：TheconnectingpointObetweenlink1andlink2isavirtualhinge.選項：A、正確B、錯誤正確答案:【錯誤】2.5Quiz1、問題：Thestructureshownbelowis：選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithoutredundantrestraint】2、問題：Thefollowingstructuralsystemisunstable.選項：A、正確B、錯誤正確答案:【錯誤】2.7Quiz1、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、InstantaneouslyunstableC、UnstableD、Stablewithredundantrestraint(s)正確答案:【Stablewithoutredundantrestraint】2、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、InstantaneouslyunstableC、UnstableD、Stablewithredundantrestraint(s)正確答案:【Instantaneouslyunstable】3、問題：Intherulethattwoorthreerigidbodiesconstituteageometricallyinvariantsystem,notonlythenumberofnecessaryconstraints,butalsotheconditionsthattheseconstraintsmustsatisfyarespecified.選項：A、正確B、錯誤正確答案:【正確】4、問題：Inthesystemshowninthefigure,afterremoving1-5,3-5,4-5,2-5andfourlinks,thesimplysupportedbeam12isobtained,sothesystemisastablesystemwithfourredundantconstraints.選項：A、正確B、錯誤正確答案:【錯誤】5、問題：Somesystemscanbeunstablebutwithredundantconstraints.選項：A、正確B、錯誤正確答案:【正確】6、問題：Thethreebasicrulesofplanegeometricinvariantsystemarerelatledwitheachother.選項：A、正確B、錯誤正確答案:【正確】7、問題：Theplanarsystemshowninthefigureisaninstantaneouslyunstablesystembecausea,BandCarecollinear.選項：A、正確B、錯誤正確答案:【錯誤】8、問題：Inthefigurebelow,ACandBCformabinarysystem.Ifitisremovedinthegeometriccompositionanalysis,theremainingpartisanunstablesystem.Sotheoriginalsystemisalsoanunstablesystem.選項：A、正確B、錯誤正確答案:【錯誤】9、問題：Asystemwithredundantconstraintsmustbegeometricallyinvariant.選項：A、正確B、錯誤正確答案:【錯誤】10、問題：Intherulethattwoorthreerigidplatesconstituteageometricallyinvariantsystem,notonlythenumberofnecessaryconstraints,butalsothegeometricconditionsthattheseconstraintsmustsatisfyarespecified.選項：A、正確B、錯誤正確答案:【正確】Homework1Unittest11、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithredundantrestraint(s)】2、問題：Thefollowingstructuralsystemis:選項：A、UnstableB、InstantaneouslyunstableC、StablewithoutredundantrestraintD、Stablewithredundantrestraint(s)正確答案:【Stablewithoutredundantrestraint】3、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithredundantrestraint(s)】4、問題：Thestructuralsystemshallbedesignedtobe:選項：A、StableB、UnstableC、InstantaneouslyunstableD、Stableorinstantaneouslyunstable正確答案:【Stable】5、問題：Thefollowingstructuralsystemhasthreeredundantrestraints.Toensurethatitisstillstable,whichtworestraintscannotberemovedatthesametime?選項：A、aandeB、aandbC、aandcD、cande正確答案:【aandb】6、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Instantaneouslyunstable】7、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithoutredundantrestraint】8、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Unstable】9、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithredundantrestraint(s)】10、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithoutredundantrestraint】11、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithoutredundantrestraint】12、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Unstable】13、問題：Thefollowingstructuralsystemis:選項：A、UnstableB、InstantaneouslyunstableC、StablewithoutredundantrestraintD、Stablewithredundantrestraint(s)正確答案:【Stablewithoutredundantrestraint】14、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithredundantrestraint(s)】15、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithoutredundantrestraint】16、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Instantaneouslyunstable】17、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithredundantrestraint(s)】18、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithredundantrestraint(s)】19、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Instantaneouslyunstable】20、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithredundantrestraint(s)】21、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、Unstablewithredundantrestraint(s)D、Instantaneouslyunstablewithredundantrestraint(s)正確答案:【Unstablewithredundantrestraint(s)】22、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Instantaneouslyunstable】23、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithredundantrestraint(s)】24、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Instantaneouslyunstable】25、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithoutredundantrestraint】26、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、InstantaneouslyunstableD、Unstable正確答案:【Stablewithredundantrestraint(s)】27、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithredundantrestraint(s)】28、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithoutredundantrestraint】29、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、Stablewithredundantrestraint(s)C、UnstableD、Instantaneouslyunstable正確答案:【Stablewithoutredundantrestraint】30、問題：Thefollowingstructuralsystemis:選項：A、StablewithoutredundantrestraintB、StablewithoneredundantrestraintC、InstantaneouslyunstableD、Stablewithtworedundantrestraints正確答案:【Stablewithoneredundantrestraint】3.1Quiz1、問題：Thegeometriccharacteristicsofstaticallydeterminatestructuresare:選項：A、Noredundantrestraint(s)B、StableC、ThedegreeoffreedomiszeroD、Stablewithnoredundantrestraint(s)正確答案:【Stablewithnoredundantrestraint(s)】2、問題：Asshowninthefigure,thereactionforceatsupportA(upwardispositive)is:選項：A、－PB、－2P/3C、－P/3D、0正確答案:【0】3、問題：TheverticalreactionofsupportCinthearchis:選項：A、P(upward)B、P(downward)C、2.5P(upward)D、P/2(upward)正確答案:【2.5P(upward)】4、問題：Asshowninthefigure,theverticalreactionoftheleftsupportofthehingedarchis:選項：A、0B、1kNC、2kND、3kN正確答案:【0】5、問題：Undertheactionofload,whichofthefollowingistrueforreactionsandinternalforcesofstaticallydeterminatestructure?選項：A、Itisnotonlydeterminedbyequilibriumcondition,butalsobydeflectionconditionB、Itcanbeobtainedbystaticequilibriumcondition,butsometimesthevalueisuncertainC、Inspecialcases,itcanbeuniquelydeterminedbythestaticequilibriumconditionD、Allofthemcanbeobtainedbystaticequilibriumcondition,andthenumericalvaluecanbedetermined.正確答案:【Allofthemcanbeobtainedbystaticequilibriumcondition,andthenumericalvaluecanbedetermined.】6、問題：Alltheinternalforcesandreactionsofstaticallydeterminatestructuresareobtainedonlyaccordingtotheequilibriumconditions,andthesolutionisunique.選項：A、正確B、錯誤正確答案:【正確】7、問題：Geometricallyinvariantsystemsmustbestaticallydeterminate.選項：A、正確B、錯誤正確答案:【錯誤】8、問題：Theuniquenessofsolutionofstaticallydeterminedstructurereferstothatthereactionforce,internalforceanddeformationaredeterminedbystaticequilibriumconditionsonly.選項：A、正確B、錯誤正確答案:【錯誤】3.2Quiz1、問題：Theshapeofthemomentdiagramshowninthediagramis:選項：A、CorrectB、WrongC、PartofitiswrongD、Itiscorrectundercertainconditions正確答案:【Itiscorrectundercertainconditions】2、問題：Thebendingmomentdiagramshowninthefigureiscorrect.（）選項：A、正確B、錯誤正確答案:【錯誤】3、問題：Whenthesamesimplysupportedinclinedbeamissubjectedtotwokindsofdistributedloadswithdifferentformsbutequalvalue,theirbendingmomentdiagramsarethesame.()選項：A、正確B、錯誤正確答案:【錯誤】3.3Quiz1、問題：Thesectionwherethebendingmomentdiagramhasabruptchangeis:()選項：A、SectionwithconcentratedloadB、SectionwithzeroshearforceC、SectionwithzeroloadD、Sectionwithconcentratedcouple正確答案:【Sectionwithconcentratedcouple】2、問題：ThebendingmomentofABinthestructureshowninthefigureisconstant.選項：A、正確B、錯誤正確答案:【正確】3、問題：TheMdiagramofthestructureinFig.AisshowninFig.B.選項：A、正確B、錯誤正確答案:【正確】4、問題：TheinternalforceofABiszero.選項：A、正確B、錯誤正確答案:【正確】3.4Quiz1、問題：Forthesimplysupportedbeamshowninthefigurebelow,theinternalforceonsectionBis:選項：A、Thebendingmomentis0andtheshearforceis0B、Bendingmomentis0,shearforceisnot0C、Bendingmomentisnot0,shearforceis0D、Bendingmomentisnot0,shearforceisnot0正確答案:【Bendingmomentisnot0,shearforceis0】3.4Quiz1、問題：Asshowninthefigure,thebendingmomentofthemidspansectionofABbeamis:選項：A、10kN-m,tensiononthetopB、10kN-m,tensionatbottomC、20kN-m,tensiononthetopD、20kN-m,tensionatbottom正確答案:【10kN-m,tensionatbottom】2、問題：ThemomentatsectionDforthebeamshownbelowis:選項：A、20kN-m(topissubjectedtotension)B、18kN-m(bottomissubjectedtotension)C、18kN-m(topissubjectedtotension)D、20kN-m(bottomissubjectedtotension)正確答案:【18kN-m(bottomissubjectedtotension)】3、問題：Thesuperpositionoftwobendingmomentdiagramsdoesnotrefertothesimplecombinationofthefigures,butreferstothesuperpositionofthebendingmomentordinatescorrespondingtothetwodiagrams.選項：A、正確B、錯誤正確答案:【正確】4、問題：ThefollowingfigureshowstheMdiagramofthebeam.選項：A、正確B、錯誤正確答案:【錯誤】5、問題：Isthebendingmomentdiagramofthestructureshowninthefigurebelowcorrect?選項：A、正確B、錯誤正確答案:【正確】3.6Quiz1、問題：Howwilltheloadloadactingonthefundamentalpartofthestaticmulti-spanbeamonthesubsidiarypart?選項：A、AbsolutelynointernalforceB、Generally,itdoesnotgenearteinternalforceC、ItusuallygeneratesinternalforcesD、Itwillgenerateinternalforce正確答案:【Absolutelynointernalforce】2、問題：Asshowninthefigure,thebendingmomentofsectionCofmulti-spanstaticallydeterminatebeamisequalto:選項：A、Pl（topissubjectedtotension)B、Pl（bottomissubjectedtotension)C、Pl/2（topissubjectedtotension)D、Pl/2（bottomissubjectedtotension)正確答案:【Pl/2（bottomissubjectedtotension)】3、問題：Asshowninthefigure,thebendingmomentofsectionKis:選項：A、5kN?mB、9kN?mC、13kN?mD、6kN?m正確答案:【5kN?m】4、問題：Whentheloadactsonthesubsidiarypartofthestaticallydeterminatemulti-spanbeam,theinternalforceofthefundamentalpartisnotzero.選項：A、正確B、錯誤正確答案:【正確】5、問題：Whentheexternalloadactsonthefundamentalpart,thesubsidiarypartisnottakingtheload;whentheexternalloadactsonacertainsubsidiarypart,thewholestructuremusttaketheload.選項：A、正確B、錯誤正確答案:【錯誤】6、問題：Thediagramshowsthestaticallydeterminatestructure.Undertheactionofhorizontalload,ABisthefundametalpartandBCisthesubsidiarypart.選項：A、正確B、錯誤正確答案:【正確】7、問題：Thediagramshowsastaticallydeterminatestructure.Undertheactionofverticalload,ABisthefundamentalpartandBCisthesubsidiarypart.選項：A、正確B、錯誤正確答案:【錯誤】8、問題：Asshowninthefigure,theloadPonthebeamwillgenerateinternalforceinCD.選項：A、正確B、錯誤正確答案:【錯誤】9、問題：Theshapeofthebendingmomentdiagramshowninthefigureiscorrect.選項：A、正確B、錯誤正確答案:【錯誤】3.7Quiz1、問題：Inthestructureshowninthefigure,whichoneiscorrectfortheE-endbendingmomentofmemberEGandtheshearforceofB-sectionofmemberBA?選項：A、(M)EG=16kN-m(uppersideissubjectedtotension),(Fs)BA=8kNB、(M)EG=16kN-m(lowersideissubjectedtotension),(Fs)BA=8kNC、(M)EG=16kN-m(lowersideissubjectedtotension),(Fs)BA=-8kND、(M)EG=16kN-m(uppersideissubjectedtotension),(Fs)BA=16kN正確答案:【(M)EG=16kN-m(lowersideissubjectedtotension),(Fs)BA=8kN】2、問題：Asshowninthefigure,thebendingmomentatC-endofCDintherigidframeis:選項：A、0B、-Pl(topissubjectedtotension）C、Pl((bottomissubjectedtotension）D、-2Pl(topissubjectedtotension）正確答案:【0】3、問題：Asshowninthefigure,thebendingmomentatB-endofmemberBAis(assumingtheleftsidesubjectedtotensionispositive)is:選項：A、2PaB、PaC、3PaD、-3Pa正確答案:【3Pa】4、問題：Accordingtothestructureshowninthefigure,thebendingmomentatD-endofmemberDCis(assumingthatthelowersidesubjectedtotensionispositive):選項：A、－PaB、PaC、－Pa/2D、Pa/2正確答案:【－Pa/2】5、問題：WhichofthefollowingiscorrectforbothMACandMBD?選項：A、MAC=Ph(leftsideissubjectedtotension);MBD=Ph(leftsideissubjectedtotension)B、MAC=Ph(leftsideissubjectedtotension);MBD=0C、MAC=0;MBD=Ph(leftsideissubjectedtotension)D、MAC=Ph/3(leftsideissubjectedtotension);MBD=2Ph/3(leftsideissubjectedtotension)正確答案:【MAC=0;MBD=Ph(leftsideissubjectedtotension)】6、問題：Inthestaticrigidframeshowninthefigure,thebendingmomentofsectionAofABis:選項：A、2Pa(leftsideissubjectedtotension）B、Pa(leftsideissubjectedtotension）C、0D、Pa（rightsideissubjectedtotension）正確答案:【Pa(leftsideissubjectedtotension）】7、問題：Forthestructurebelow,themomentatBendofmemberBCMBC=ql^2/2(positiveisbottomissubjectedtotension).選項：A、正確B、錯誤正確答案:【錯誤】8、問題：Forthestructurebelow,Mk=ql^2/2(insideissubjectedtotension).選項：A、正確B、錯誤正確答案:【錯誤】9、問題：Themomentdiagramiscorrect.選項：A、正確B、錯誤正確答案:【錯誤】3.9Quiz1、問題：Asshowninthefigure,thehorizontalthrustatthesupportofthreehingedarchis:選項：A、30kNB、20kNC、10kND、40kN正確答案:【20kN】2、問題：Inthethree-hingedarchshownbelow,ifthehorizontalthrustH=P/3,theheighttospanratiof/lshouldbeequalto:選項：A、3/8B、1/2C、5/8D、3/4正確答案:【3/8】3、問題：Thereasonwhythebendingmomentofthethreehingedarchislessthanthatofthecorrespondingsimplysupportedbeamisthatthereishorizontalsupportreaction.選項：A、正確B、錯誤正確答案:【正確】4、問題：Underthesamespanandverticalload,thehorizontalthrustofthree-hingedarchwiththesameheightofarchfootdecreaseswiththedecreaseofrise.選項：A、正確B、錯誤正確答案:【錯誤】5、問題：Thethreehingedarchdesignedaccordingtotherationalarchaxiscanmakethebendingmomentofeachsectioninthearchzerounderanyload.選項：A、正確B、錯誤正確答案:【錯誤】6、問題：Inthestructurebelow,theverticalsupportreactionsareFAy=m/l(up),FBy=m/l(down).選項：A、正確B、錯誤正確答案:【錯誤】7、問題：Thehorizontalthrustofthearchshownbelowis3ql/4.選項：A、正確B、錯誤正確答案:【正確】8、問題：ThemomentofKsectionofthearchbelow(M)=ql^2/32(lowersideissubjectedtotension).選項：A、正確B、錯誤正確答案:【錯誤】9、問題：Thesystemshowninthefigureisarchstructure.選項：A、正確B、錯誤正確答案:【錯誤】3.10Quiz1、問題：Inthetrussshowninthefigure,theaxialforcesofmembers1and2are:選項：A、B、C、D、正確答案:【】2、問題：TheinternalforceofmemberABshowninthefigureis:選項：A、2PB、C、D、0正確答案:【0】3、問題：Inthetrussshowninthefigure,theaxialforcesofmembers1and2are:選項：A、0.25P，0.75PB、0.75P，1.414PC、0，1.06PD、0，-0.75P正確答案:【0，1.06P】4、問題：Inthetrussshowninthefigure,thecorrectinternalforcesofmembers1and2are:選項：A、B、C、D、正確答案:【】5、問題：Theinternalforceofmemberbis:選項：A、hP/2dB、hP/3dC、0D、P/2正確答案:【0】6、問題：Asshowninthefigure,thechangeoftheinternalforceofthelowerchordofthetrussis:選項：A、Smallatbothends,largeinthemiddleB、Largeatbothends,smallinthemiddleC、TheinternalforceofeachmemberisthesameD、Thechangehasnoruletofollow正確答案:【Smallatbothends,largeinthemiddle】7、問題：TheinternalforceofmemberABbarthestructure5Pd/(2h).選項：A、正確B、錯誤正確答案:【錯誤】8、問題：TheinternalforceofmemberAshowninthefigureis—P.選項：A、正確B、錯誤正確答案:【錯誤】3.11Quiz1、問題：Howmanymemberswithzeroforcearethereinthestructurebelow?選項：A、3B、6C、8D、7正確答案:【8】2、問題：Theinternalforcesofmembers1,2and3showninthefigureare:選項：A、B、C、D、正確答案:【】3、問題：Thetrussshownherehas9zeroforcemembers.選項：A、正確B、錯誤正確答案:【正確】4、問題：Theinternalforceofmember1iszero.選項：A、正確B、錯誤正確答案:【正確】5、問題：Thetrussshowninthefigurehasthreezeroforcemembers.選項：A、正確B、錯誤正確答案:【錯誤】6、問題：圖示結(jié)構(gòu)A桿的內(nèi)力為P/2。選項：A、正確B、錯誤正確答案:【正確】7、問題：Theinternalforcesinmembers1and2areFN1=-FN2=P.選項：A、正確B、錯誤正確答案:【錯誤】8、問題：Theinternalforceofmemberais1.4142P.選項：A、正確B、錯誤正確答案:【錯誤】3.12Quiz1、問題：Theaxialforceofmember1is:選項：A、0B、-PC、PD、-P/2正確答案:【-P/2】2、問題：Inthestructureshowninthefigure,theinternalforceofthesectionontherightsideofpointAonthebeamtypememberis:選項：A、B、C、D、正確答案:【】3、問題：Inthestructureshowninthefigure,theinternalforceofmemberais:選項：A、PB、－3PC、2PD、0正確答案:【2P】4、問題：Inthecompositestructure,theinternalforceofchainbar(trusstypemember)isaxialforce,andtheinternalforceofbeamtypememberisonlybendingmomentandshearforce.選項：A、正確B、錯誤正確答案:【錯誤】5、問題：TheaxialforceofmemberABisP(tension).選項：A、正確B、錯誤正確答案:【錯誤】6、問題：Inthestructureshowninthefigure,ifthereactionforceofsupportisknown,theaxialforceofmemberCDcanbeobtainedfromtheequilibriumconditionofjointD.選項：A、正確B、錯誤正確答案:【錯誤】7、問題：Inthestructureshowninthefigure,membersACandCBdonotgeneratebendingmoment.選項：A、正確B、錯誤正確答案:【錯誤】8、問題：Asshowninthefigure,theaxialforceofmemberDEis30kNundertheactionofload.選項：A、正確B、錯誤正確答案:【錯誤】9、問題：Asshowninthefigure,theaxialforceofmember1is0.選項：A、正確B、錯誤正確答案:【正確】10、問題：Inthestructureshowninthefigure,theinternalforcesofalltwo-forcebarsarezero.選項：A、正確B、錯誤正確答案:【正確】11、問題：ThebendingmomentofsectionAis40kN-m(counterclockwise).選項：A、正確B、錯誤正確答案:【錯誤】homework2homework3homework4homework5Unittest31、問題：TheinternalforceinmemberCDis___?選項：A、PB、-PC、2PD、-2P正確答案:【-2P】2、問題：Theaxialforceinmemberais___?選項：A、0B、-10kNC、5kND、-5kN正確答案:【0】3、問題：TheaxialforceinmemberABis___?選項：A、B、C、0D、-P正確答案:【-P】4、問題：TheinternalforceinmemberABis___?選項：A、0B、C、D、正確答案:【】5、問題：Theaxialforceinmember1is___?選項：A、0B、C、D、P正確答案:【】6、問題：TheaxialforceinmemberFGis___?選項：A、200kNB、-200kNC、100kND、-100kN正確答案:【-200kN】7、問題：Theaxialforce選項：inmemberais___?A、B、C、D、0正確答案:【】8、問題：TheshearforceatSectionCinmemberCAis___?選項：A、3PB、-3PC、5PD、-5P正確答案:【-3P】9、問題：TheshearforceatSectionBinmemberBCis___?選項：A、B、C、D、正確答案:【】10、問題：TheshearforceatSectionBinmemberBCis___?選項：A、100kNB、-100kNC、150kND、-150kN正確答案:【-150kN】11、問題：TheshearforceatSectionAinmemberABis___?選項：A、0B、-qaC、qaD、qa/2正確答案:【qa】12、問題：ThemomentatSectionEinmemberEDis___?(assumethemomentispositivewhentherightsideissubjectedtotension.)選項：A、PaB、-PaC、3PaD、-3Pa正確答案:【-3Pa】13、問題：ThemomentatSectionCinmemberCAis___?(assumethemomentispositivewhentherightsideissubjectedtotension.)選項：A、4kN?mB、56kN?mC、60kN?mD、70kN?m正確答案:【56kN?m】14、問題：ThemomentatSectionFinmemberFCis___?(assumethemomentispositivewhenthebottomissubjectedtotension.)選項：A、-2kN?mB、-3kN?mC、-4kN?mD、-1kN?m正確答案:【-2kN?m】15、問題：Forthestructurebelow,assumeP=30kN,m=120kN?m.ThemomentatSectionBinmemberBAis___?(assumethemomentispositivewhentherightsideissubjectedtotension.)選項：A、-30kN?mB、-50kN?mC、-90kN?mD、-160kN?m正確答案:【-50kN?m】16、問題：Whichstatementistrueforand?選項：A、tension）；(leftsideissubjectedtotension）,(leftsideissubjectedtotension）,(leftsideissubjectedtoB、C、,(leftsideissubjectedtotension）；D、(leftsideissubjectedtotension）,(leftsideissubjectedtotension）；正確答案:【,(leftsideissubjectedtotension）；】17、問題：ThemomentatSectionAis___?(assumethemomentispositivewhenthebottomissubjectedtotension.)選項：A、m；B、－m；C、－2m；D、0.正確答案:【－m；】18、問題：Theaxialforceinmemberais___?選項：A、P;B、2P;C、3P;D、4P正確答案:【4P】19、問題：TheaxialforceinmemberBCis___?選項：A、P/2;B、－P;C、2P;D、P.正確答案:【－P;】20、問題：Howmanyzero-forcemembersarethereinthistruss?選項：A、3B、5C、7D、9正確答案:【9】21、問題：Forthetrussbelow,whichoneiscorrect?選項：A、B、C、D、正確答案:【】22、問題：Howmanyzero-forcemembersarethereinthistruss?選項：A、3B、4C、5D、6正確答案:【5】23、問題：Theaxialforceinmember1is___?選項：A、0B、C、D、P正確答案:【0】24、問題：Theaxialforcesinmembers1and2are___?選項：A、B、C、D、正確答案:【】25、問題：Theaxialforcesinmembers1and2are___?選項：A、B、C、D、正確答案:【】26、問題：Theaxialforceinmemberais___?選項：A、2PB、-2PC、3PD、-3P正確答案:【-3P】27、問題：Howmanyzero-forcemembersarethereinthistruss?選項：A、7B、8C、9D、10正確答案:【9】28、問題：Theaxialforceinmembercis___?選項：A、PB、-P/2C、P/2D、0正確答案:【P】29、問題：Theaxialforcesinmembers1and2are___?選項：A、B、C、D、正確答案:【】30、問題：Theaxialforcesinmembers1and2are___?選項：A、B、C、D、正確答案:【】31、問題：Theaxialforceinmemberais___?選項：A、B、C、PD、正確答案:【】32、問題：Howmanyzero-forcemembersarethereinthistruss?選項：A、4B、5C、6D、7正確答案:【7】33、問題：Theaxialforcesinmembers1and2are___?選項：A、-2P,PB、2P,-PC、2P,PD、-2P,-P正確答案:【-2P,P】34、問題：Theaxialforceinmember1is___?選項：A、PB、P/2C、P/3D、0正確答案:【0】Unittest21、問題：ThereactionsatsupportAare選項：A、B、C、D、正確答案:【】2、問題：ThemomentatsectionCis：選項：A、B、C、D、0正確答案:【0】3、問題：ThemomentatjointBis：選項：A、OutsideissubjectedtotensionB、InsideissubjecttotensionC、ThevalueiszeroD、Allabovethreeoptionsarepossible.正確答案:【Allabovethreeoptionsarepossible.】4、問題：Inthefollowingstructure:選項：A、B、C、,outsideissubjectedtotensioninsideissubjectedtotensionD、正確答案:【】5、問題：Inthefollowingstructure,momentatsectionsAandCare(assumethatitispositivewhenthebottomissubjectedtotension):選項：A、B、C、D、正確答案:【】6、問題：Internalforcesinadeterminatestructureare:選項：A、notrelatedtothestructure’sEIB、relatedtothestructure’srelativeEIC、relatedtothestructure’sabsolutevalueofEID、relatedthestructureI,butnotE正確答案:【notrelatedtothestructure’sEI】7、問題：MomentatsectionCforthemulti-spandeterminatebeamshownbelowis:選項：A、Pl(topissubjectedtotension)B、Pl(bottomissubjectedtotension)C、Pl/2(topissubjectedtotension)D、Pl/2(bottomissubjectedtotension)正確答案:【Pl/2(bottomissubjectedtotension)】8、問題：TheshearatsectionbelowKforthestructureshownbelowis:選項：A、0B、-PC、PD、P/2正確答案:【0】9、問題：Whatwillforcesactingonfundamentalpartsdotothesubsidiaryportions?選項：A、DefinitelywillnotgenerateinternalforcesB、GenerallywillnotgenerateinternalforcesC、GenerallywillgenerateinternalforcesD、Definitelywillgenerateinternalforces正確答案:【Definitelywillnotgenerateinternalforces】10、問題：MomentatsectionKforthestructureshownbelowis(assumethatitispositivethenthebottomissubjectedtotension):選項：A、B、C、D、正確答案:【】11、問題：ShearatsectionAforthestructureshownbelowis:選項：A、-PB、PC、P/2D、-P/2正確答案:【-P/2】12、問題：MomentatsectionCinmemberCAandshearatsectionCinmemberCBforthestructureshownbeloware:選項：A、B、C、(leftsideissubjectedtotension),;D、(leftsideissubjectedtotension),(leftsideissubjectedtotension),正確答案:【;】13、問題：MomentatsectionBinmemberBCforthestructureshownbelowis:選項：A、80kN?m(bottomissubjectedtotension)B、40kN?m(bottomissubjectedtotension)C、80kN?m(topissubjectedtotension)D、40kN?m(topissubjectedtotension)正確答案:【80kN?m(bottomissubjectedtotension)】14、問題：Choosethecorrectmo