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1、航海英語6050之--14航海儀器十四航海儀器14.1航海儀器使用說明書[3801]Whichofthefollowingradarcontactswillpresentthemostimmediatedanger？______.A.Avesselonthestarboardbowwhosebearingischangingandrangeisdecreasing．B.Avesselonthestarboardbowwhosebearingissteadyandrangeisincreasing．C.Avesselontheportb
2、owwhosebearingissteadyandrangeisdecreasing．D.Avesselontheportbowwhosebearingischangingtotheleftandrangedecreasing．KEY:C[3802]Whichofthefollowingistruewhennavigationwithradarduringrestrictedvisibility？______①Radarmaynotindicatesmallvesselsandicebergs．②Radarmaymeanthatsaf
3、espeedisevenslowerduetotheindicationofothervesselsonthescope．A.①only．B.②only．C.Both①and②D.Neither①nor②KEY:C[3803]Thereisapossibilitythatsmallvessel，iceandotherfloatingobjectsmaynotbe______byradaratanadequaterange．A.reflectB.shownC.detectedD.defected．KEY:C[3804]Mygyro-co
4、mpasserroris______.A.easttwodegreesB.twodegreeseastC.twoeastdegreesD.two-degreeseastKEY:B[3805]______therepeatercompasswiththemastercompass，please．A.SimilizeB.ClockC.SynchronizeD.PositionKEY:C[3806]Theprincipalpurposeofadjustmentofthemagneticcompassistoeliminate______as
5、faraspossible．A.variationB.compasserrorC.deviationD.earth'smagneticforceKEY:C[3807]Deviationofthemagneticcompasscanbeobtainedbymeansof______.A.takingbearingsofthesunB.comparisonwiththegyro-compassC.reciprocalbearingsD.A＋B＋CKEY:D[3808]Yourshipissteamingatnightwiththegyro
6、pilotengaged.Younoticethatthevessel'scourseisslowlychangingtotheright.WhichactionshouldyoutakeFIRST?______.A.Notifytheengineroomofthesteeringmalfunction.B.Changetohandsteering.C.CalltheMaster.D.SendtheQuartermastertotheemergencysteeringstation.KEY:B[3809]Mygyro-compass_
7、_____istwodegreeseast．A.troubleB.errorC.wrongD.mistakeKEY:B[3810]Magneticheadingdiffersfromcompassheadingby______.A.compasserrorB.trueheadingC.variationD.deviationKEY:D[3811]Ifthegyrocompasserroriseast，whatdescribestheerrorandthecorrectiontobemadetogyrocompassheadingsto
8、obtaintrueheadings?______.A.Thereadingsaretoolow(smallnumerically)andtheamountoftheerrormustbeaddedtothecompas
