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航海英语49期1.Youmayfindthetimeofslackwaterafterlowwaterinacertainportfrom_____A.DeadweightscaleB.TidetableC.NoticetomarinersD.TableofazimuthB2.Manyofthelightsonthiscoastareplacedesohighastobesofrequentlyobscuredby_______A.PowerB.TowerC.CoverD.Shower_D3.Alineofpositionfromacelestialobsertionisasegmentofa______A.circleofequalaltitudeB.parallelofdeclinationC.parallelofaltitudeD.verticalofcircleA4.Howlongwould15minutesoflongitudebeatalatitudeof60degreesNorth?______A.30nmB,60nmC.15nmD.7.5nmD5.Themaximumdifferencebetweenmeantimeandapparenttimeis________A.equaltothelongitudeexpressedintimeunitsB.about16minutesC.thedifferencebetweentheGHAofmeansunandthefirstpointofAriesD.15°ofarcB6.Thechartofabeachareashowsaveryflatslopetotheunderwaterbeachbottom.Whattypeofbreakerscanbeexpectedwhentryingtolandaboatonthisbeach?A.SurgingB.SpillingC.PlungingD.ConvergingB7.Whichisaweeklypublicationadvisingmarinersofimportantmattersaffectingnavigationalsafety?A.LightListB.NoticetoMarinersC.CoastPilotD.SailingDirectionsB8.Navigatewith___.Smallfishingboatsarewithin0.8mileofme.A.crefullB.skillC.concernD.cautionD9.TheAdmiraltyNoticestoMarinerscanbeobtained_____byMastersofvesselsfromanyAdmiraltyChartAgent．A.freeofchargeB.withnoresponsibilityC.withoutlimitationsofdistributionD.withlittlechargesA10.Theproperwaytocorrectamistakeinthelogbookisto____.A.erasetheentryandrewriteB.drawseverallinesthroughtheentry，rewrite，andinitialthecorrectionC.completelyblackouttheentry，rewrite，andinitialthecorrectionD.drawonelinethroughtheentry，rewrite，andinitialthecorrectionD11.Whenavesselisenteringorleavingaport，arecordofenginespeedsiskeptinthe_____.A.bellbookB.deckroughlogC.OfficialLogbookD.engineroughlogA12.I’dliketoknowthefull_____oftheaccident．A.particularB.particularsC.inparticularD.inparticularsB13.Theextent程度ofthedamagecouldnotbe_____thoughIinspecteditwiththeChiefStevedoreincharge.A.sureB.containedC.ascertained查明D.appliedC14.ForwhomistheISMCodemandatory?A.Allvessels500GRTandaboveB.AlltankersC.Allvesselsbuiltafter1998D.Allvesselsoninternationalroutes答案：A谁要强制执行国际安全管理规则？所有500总吨以上的船舶15.Thatthe____showedthattheshipcompliedwiththerequirementsofthesaidConvention.A.lookingB.seeingC.sightseeingD.inspection检查D16.Iftheofficerofthewatchmustleavethevoyageplan,heshould_____?A.MakeanoteinthelogbookB.InformthemasterC.NospecialactionnecessaryD.Checkthenewplan答案:B值班驾驶员必须停止航行计划他应该报告船长17.TheSafetyofLifeatSeaConventionwasdevelopedbythe______.A.IMDGconferenceB.AmericanBureauofShippingC.InternationalMaritimeOrganizationD.AmericanInstituteofMaritimeShipping答案：C海上人命安全公约由国际海事组织提出。18.Themaneuveringinformationrequiredtobepostedinthewheelhousemustbebasedoncertainconditions.Whichofthefollowingisnotoneoftheseconditions?A.ThehullmustbucleanB.Theremustbecalmweather-wind10knotsorlessandacalmseaC.TheremustbenocurrentD.Thedepthofthewatermustbeatleastoneandone—halftimesthedraftD19.Howtodeterminethedensityoftheslopaftertankwashing?A.ByuseofaninterferometerB.ByuseofahydrometerC.ByuseofaninterfaceD.Byuseofathermometer答案：B怎样判断洗舱后费油的密度？通过使用液体比重计20.Nooilormixturecontainingoil_____intoSingaporewatersfromanyvessel．A.shallnotbedischargedB.shallbedischargedC.shallbefilledD.shallnotbefilledB21.WhatisaCORRECTreplytoapilot’srequest,“How’syourheading”?A.SteadyB.Easedto10rudderC.CheckedD.Passing50D22.Theidealropeforstoppersshouldsatisfythefollowingrequirementsexceptthat_____.A.ThestoppershouldbeofsyntheticfibreropeB.ThesizeofthestoppershouldbeaslargeaspossibleC.ThestoppershouldbeoflowstretchmaterialD.Thestoppershouldbeveryflexible答案：B阻挡器的理想的绳索需要满足以下要求中除了阻挡器的尺寸尽可能大23.Thebestmethodtostopavesselfromdragginganchor走锚inasandbottomisto____.A.reducethelengthofthecableB.payoutmoreanchorcableC.backtheenginesD.swingtherudderseveraltimestoworktheanchorintothebottomB24.___isprohibitedinthisarea．A.AnchorB.AnchoringC.AnchoredD.BeinganchoredB25.Avesselfittedwithtwinscrewsiseasierin____thanavesselwithsinglescrew．A.turningmaneuverB.coursesettingC.positionfixingD.regulatingspeedA26.Ifyourpropellerisracing空转inroughweather，youshould_____.A.decreaseyourenginespeedB.ignoreitC.increaseyourenginespeedD.stopyourengineuntiltheroughweatherpassesA27.WhichvesselisunderwayaccordingtotheRules?_____A.AvesselmadefasttoasinglepointmooringbuoyB.ApurseseinerhaulinghernetsC.ApilotvesselatanchorD.AvesselwhichhasrunagroundBpurseseiner围网渔船hauling拖28.AllofthefollowingareengagedinfishingEXCEPT_____.A.AvesseltrawlingB.AvesseltrollingC.AvesselsettingnetsD.Avesseltendinglines．B29.Anyalterationofcourseand/orspeedtoavoidcollisionshall，ifthecircumstancesofthecaseadmit，______toanothervesselobservingvisuallyorbyradar.A.belargeenoughtobereadilyapparentB.beasuccessionofsmallalterationsC.bewithdueregardtothepowerandspeedofthevesselD.leavesufficientroomfortheothervesseltotakeactionKEY:A任何为避免碰撞的航向和/或航速的改变应，如环境许可，大的足以容易明显地被他船以视觉或雷达观测到.（为避免碰撞而作的航向和（或）航速的任何变动，如当时环境许可，应大得足以便他船用视觉或雷达观测时容易察觉到）30.TwoshortblastsofthewhistlehaveallofthefollowingmeaningsEXCEPT______.A.Iintendtomeetyoustarboardtostarboard．B.Idonotintendtoholdcourseandspeed．C.Iintendtoovertakeyouonyourportside．