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1、13春学期《矿山机械》在线作业2NortheasternUniversity,14spring,13autumn,13springsemester,miningmachinery,onlinehomework,2Totalscore:100testtime:一RadioexaminationAmultiple-choicequestionRadioexaminationquestions(5questions,25points)OneThequalityofwireropewireropeisgiveninthespecificationrefersto•
2、QualityofA.ImlengthsteelwireropeQualityofB.10mlengthsteelwireropeC.qualityofsteelwireforeachrollQualityofD.100mlengthsteelwireropeFullmarks:5TwoTheskiphoist,hoistingropereferstothemaximumlengthofsuspended.A.totallengthofwireropeB.derrickheight,loadingheight,andminedepthC.minedepth
3、ConnectinglengthofD.steelwireropeFullmarks:53.fortheGcagelifting,hoistingropereferstothemaximumlengthofsuspended・A.totallengthofwireropeB.derrickheightplusloadingheightC.minedepthConnectinglengthofD.steelwireropeFullmarks:5FourTheslopeis.Theratioofthelengthofalinetotheheightdiffer
4、enceofaA.B.theratioofhorizontallengthtoheightdifferenceofasectionofalineTheinclinationoftheC.lineSinusoidalvalueofD.lineinclinationFullmarks:5FiveFlipbucketshouldadoptthephasevelocitymap・A.threeB.fourC.fiveD.sixFullmarks:5NortheasternUniversity,14spring,13autumn,13springsemester,m
5、iningmachinery,onlinehomework,2Totalscore:100testtime:-RadioexaminationAmultiple-choicequestion,(atotalof15multiple-choicequestions,atotalof75points.Homeworkanswerdidnotupload,firstforeveryonetoreviewtheuse,ifyouneedtoanswerthespecific,seemyregistrationnametofind)OneThehoistingcon
6、tainertypesinclude・A.cageandskipB.MinecarC.AbalanceweightD.BucketFullmarks:5TwoCalculatethetensionofbeltconveyorisdesignedtoA.determinemotorpowerB.checkingthestrengthofconveyorbeltsCheckingthesagconditionofconveyerbeltwithC.A.determinesrunningresistanceFullmarks:5ThreeLongdistance
7、belttransmissionoperationanswerdoesnotupload,firstforyourreview,ifyouneedtoanswerthespecificlookatmynametofindawaytosendahightensionA.screwtensioningdeviceB.heavyhammertensioningC.steelropewinchtensioningdeviceD.individuallyfixedtensioningmethodFullmarks:5FourMotorvehicletractionc
8、apacitydependsontheTractionpowero
