轮机英语期末考试第一卷

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1、1002级轮机英语期末考试（A）考试班级：1002轮机2.3.4.5班班级：姓名：分数：第一部分：单选题1.1886Thestartingcurrentofana.c.motoris_____theratedcurrent.A.thesameasB.muchlargerthanC.lessthanD.equals2.1895Witha_____loadthevoltageandcurrentareinphase.A.pureresistanceB.capacitiveC.inductiveD.Noneoftheabove3.1905

2、Theemergencygeneratororemergencybatteryisconnectedto_____onmostlargeships.A.distributionboardsB.sectionboardsC.emergencyswitchboardsD.mainswitchboards4.1906Switchboardsmaybeofthedead-fronttypeinwhichalllivepartsareinstalledbehind_____andonlytheoperationhandlesandinstru

3、mentsareonthefront.A.thecapstanB.thecollectorC.thepanelsD.thesurface5.1907Remotecontrolmeansthat_____.A.thesystemismannedmanuallyB.thesystemissituatedremotelyfromtheoperatorC.thesystemiscontrolledautomaticallyD.alltheabove6.1911Thedifferencebetweenmeasuredanddesiredval

4、uesiscalled_____.A.make-upB.desiredvalueC.deviationD.setvalue7.1916Priortoanyoverhaulworkonelectricequipment,itisimportanttoensurethecircuitsare_____.A.liveB.deadC.excitedD.online8.228.Beforestartinganenginebyair,theenginemust_________A.beturnedbyaturninggearforatleast

5、oneminuteB.beturnedbyaturninggearforatleasttwominutesC.beturnedatleastonecompleteturnD.beturnedatleasttwocompleteturns9.1924Shorepowermustbe_____duringdockrepair.A.disconnectedB.switchedoffC.cutoffD.connected10.1927Theswitchboardsfora.c.systemsdifferfromthed.c.switchge

6、arinthattheopentypepanelsaregenerally_____andthedead-frontswitchgearisthecommonrule.A.permissiblyB.permissibleC.nopermissibleD.notpermissible11.1932Currentchangingindirectionandrisingandfallinginvalueis_____.A.A.C.B.D.C.C.generatorD.freshwatergenerator12.1935Theseparat

7、esuppliesareconnectedineitherstarordeltaformation.Thestarformationismostcommonlyusedandrequires_____slip-ringsonthealternator.A.twoB.threeC.fourD.five13.1941ThedifferencebetweenmeasuredanddesiredvaluesiscalledA.offsetB.errorC.deviationD.setvalue14.1946Afterthetroubleof

8、theautomaticcontrolsystemhasbeencompletelyeliminated,assistanceis_____required.A.remainedB.stillC.nolongerD.muchmere1