北航《飞机构造》在线作业二

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1、北航《飞机构造》在线作业二〃Theplanestructure"BUAAonlinehomeworktwoTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionJudgmentquestionRadioexaminationquestions(2questions,8points)1.whichofthefollowingisnormallyusedtoprovideemergencypressuresourcesforactuatingflightcontrolsystems?・A.EDPB.ADPC.

2、ACMPD.RATFullmarks:42.mostmodernaircraftuse()wheelA.separationB.detachableflangetypeA.fixedflangetypeFullmarks:4"Theplanestructure"BUAAonlinehomeworktwoTotalscore:100testtime:-RadioexaminationAmultiple-choicequestionJudgmentquestion,(atotalof10multiple-choicequestions,atotalof40points・)1.coc

3、kpitenvironmentparametersincludeA.airtemperatureB.airpressureC.airflowD.noiseFullmarks:42.themainantiicingareaoftheaircraftisA.wingA.tailfinB.windshieldglassIntakeportofD.engineFullmarks:4Themaincomponentsofthe3.returnassemblyareA.one-wayvalveB.bypassvalveC.oilfilterD.releasevalveFullmarks:4

4、4.hydraulicsourcesystemhydrauliclinemainlyincludesA.o订supplylineB.bypasslineC.pressurelineD.returnlineFullmarks:45.,thebasicformofdeformationisA.stretchB.compressionC.shearD.twistE.bendingFullmarks:46.fuelgaugeintheformofGlasstubetypeobservationbyA.B.mechanicalC.electricD.electronicFullmarks

5、:47.thelandinggearisinworkingconditionA.openthelandinggeardoorB.openthelandinggearandlockitC.releasethelandinggearandlockitupD.closethelandinggeardoorFullmarks:4The8.bendingstressis(a)combinationA.tensilestressB.compressivestressC.torsionstressD.shearstressFullmarks:4The9.loadisdividedintoA.

6、airloadB.gravityloadC.concentratedloadA.distributedloadFullmarks:410.thebasiccomponentofthewingstructurethatissubjectedtoshear,bendingmoment,andtorqueis()A.sparB.stringerC.wingribsD.skinFullmarks:4"Theplanestructure"BUAAonlinehomeworktwoTotalscore:100testtime:-RadioexaminationAmultiple-choic

7、equestionJudgmentquestionJudgmentquestions(atotalof13questions,atotalof52points)1.theabilityofacomponenttoresistdamageorfractureunderexterndlforceiscalledthestiffnessofthememberA.errorB.correctFullmarks:4The2.pistonpumpcanbedividedintoaxialpistonpu