航海英语阅读期末考试复习题库（含答案）

PAGEPAGE63航海英语阅读期末考试复习题库（含答案）一、单选题1.

DetailsofCoastRadioStationsandRadarStationscanbefoundin______A、AdmiraltyChartB、AdmiraltyLightListC、AdmiraltyListofRadioSignalsD、AdmiraltyNoticestoMariners答案：C2.Accordingtothetext,marinersmustpayattentionto________whileusingachart.A、Cautions,WarningsandNotesB、Reports,SymbolsandChartsC、Explanations,accountsandanswersD、Damages,hazardsandinjuries答案：A3.

Accordingtothetext,marinersareadvisednotto________or________inthevicinityofpipelinesA、anchor,passB、anchor,trawlC、navigate,trawlD、turn,trawl答案：B4.TheGlobalPositioningSystem(GPS)isaspace-basedglobalnavigationsatellitesystemthatprovideslocationandtimeinformationinallweather,anywhereonorneartheEarth,wherethereisanunobstructedlineofsighttofourormoreGPSsatellites.TheGPSprogramprovidescriticalcapabilitiestomilitary,civilandmercialusersaroundtheworld.Inaddition,GPSisthebackboneformodernizingtheglobalairtrafficsystem.TheAutomaticIdentificationSystem(AIS)isanautomatedtrackingsystemusedonshipsandbyVesselTrafficService(VTS)foridentifyingandlocatingvesselsbyelectronicallyexchangingdatawithothernearbyshipsandVTSstations.AISinformationsupplementsmarineradar,whichcontinuestobetheprimarymethodofcollisionavoidanceforwatertransport.InformationprovidedbyAISequipment,suchasuniqueidentification,position,course,andspeed,canbedisplayedonascreenoranECDIS.AnElectronicChartDisplayandInformationSystem(ECDIS)isaputer-basednavigationinformationsystemthatplieswithInternationalMaritimeOrganizationregulationsandcanbeusedasanalternativetopapernauticalcharts.AnECDISsystemdisplaystheinformationfromelectronicnavigationalcharts(ENC)andintegratespositioninformationfromtheGlobalPositioningSystemandothernavigationalsensors,suchasradarandAIS.Itmayalsodisplayadditionalnavigation-relatedinformation,suchasSailingDirectionsandfathometer.Whichoffollowingisnottrue?A、GlobalPositioningSystem(GPS)isaland-basedglobalnavigationsatellitesystem.B、

GPScanprovidepositionandtimeinformationinallweatherC、GPSprogramcanbeusedbymilitary,civilandmercialusersD、GPSalsoisthebackboneformodernizingtheglobalairtrafficsystem答案：A5.

______,whichisabout7cableswide,separatesSingaporeIslandfromthemainland.A、

theGreatStraitB、SingaporeStraitC、MalaccaStraitD、JohorStrait答案：D6.MalaccaandSingaporeStraitstogetherformthemainseawayusedbyvesselsfromEuropeandIndiaboundforMalaysianPorts,portsontheEcoastofSumatera,SingaporeandportsfartherNE.TheyprovidetheshortestrouteforvesselstradingbetweenPersianGulfandJapan.IMO-adoptedTSShavebeenestablishedthroughMalaccaStraitbetweenPermatangSedepa(OneFathomBank),andthroughSingaporeStraittotheentrancetoSouthChinaSeainthevicinityofHorsburghLight,adistanceofabout250miles.RulesforvesselsnavigatingthroughtheStraitsaregivenat2.13Depthsintheroutesvarybetweenbuttherearemanyareasofsandwavesanddepthsareliabletochange,Designatedroutesfordeep-draughtvesselsarelaiddownandshownonthecharts.Tidalstreamsarestrong.Aidstonavigationaredifficulttomaintainandmaybeunreliable.Thereisconsiderablefishingactivity,oftenadjacenttoportentrance.Thesefactors,togetherwiththedensityandconcentrationoftraffic,makenavigationthroughtheStraitsdifficult,particularlyfordeep-draughtvessels.ThelongpassagethroughtheStraitsdemandslongperiodsofvigilancetomaintaintherequiredsafestandardofnavigation.

Whichoffollowingisnottrue?A、MalaccaandSingaporeStraitsisshortestrouteforvesselsfromJapantoPersianGulfB、DepthsintheMalaccaandSingaporeStraitsvarybetween20mandabout23mC、ThechartdescribesspeciallydesignatedroutefordeepdraftvesselsD、DeepdraftvesselsnavigateinMalaccaandSingaporeStraitswithlessdifficulty答案：D7.WeeklyNoticesaredatedforthe______appropriatetotheweektheyareissuedontheUKHOwebsite．A、MondayB、TuesdayC、WednesdayD、Thursday答案：D8.

Deviationchangeswithachangein______.A、LatitudeB、HeadingC、LongitudeD、Seaconditions答案：B9.Forthemarinerplanninganoceanpassage,OceanPassagefortheWorldprovidesaselectionofmonlyusedrouteswiththeirdistancesbetweenprincipalportsandimportantpositions.Itcontainsdetailsofweather,currentsandicehazardsappropriatetotheroutes,andsolinksthevolumesofSailingDirections.ItalsogivesotherusefulinformationonLoadLineRules,WeatherRouteing,etc.Thevolumeislaidouttoprovideremendedroutesforbothfull-poweredvessels,andlow-poweredandsailingvessels,inseparatechapters.OceanPassagesfortheWorldwillbekeptup-to-datebysupplements,eachnewsupplementcancellingthepreviousone.InadditionimportantamendmentswhichcannotawaitthenextsupplementarepublishedinsectionIVoftheweeklyeditionsofAdmiraltyNoticestoMariners.Alistofsuchamendmentsandnoticesinforceispublishedinthelastweeklyeditionforeachmonth.ThosestillinforceattheendoftheyeararereprintedintheAnnualSummaryofAdmiraltyNoticestoMariners.

____isnotcontainedinOceanPassagefortheWorld.A、DetailsofweatherB、CurrentsappropriatetotheroutesC、IcehazardsappropriatetotheroutesD、Tonnagemeasurement答案：D10.Theamountofdetailshownonachartvarieswiththescaleofthechart.Onalargescalechart，forexample，fulldetailsofalllightsandfogsignalsareshown，butonsmallerscalestheorderofreductionofinformationinelevation，period，range，untilonanoceanchartoftheareaonlylightswitharangeof15milesormorewillnormallybeinserted，andthenonlytheirlight-starandmagentaflare.Ontheotherhand，radiobeaconsareomittedfromlargescalechartswheretheirusewouldbeinappropriate，and，unlesstheyarelongrangebeacons，fromoceancharts

Whatcannotbefoundinthelargescalecharts?________.A、Radiobeaconsofsmallrange.B、Fulldetailsofalllights.C、ElevationsD、Fulldetailsoffogsignals答案：A11.Whenonefeaturereplacesanexistingfeatureandthepositionremainsascharted,______mandisused.A、MOVEB、DELETEC、AMENDD、SUBSTITUTE答案：D12.______isatrafficmonitoringsysteminMalaccaandSingaporeStraits,whichalsoissueswarningstovessels.A、STRAITREPB、CALDOVREPC、AUSREPD、SAFREP答案：A13.Whenafeatureremainsinitsexistingchartedpositionbuthasachangeofcharacteristic,______mandisused.A、MOVEB、DELETEC、AMENDD、SUBSTITUTE答案：C14.Forthemarinerplanninganoceanpassage,OceanPassagefortheWorldprovidesaselectionofmonlyusedrouteswiththeirdistancesbetweenprincipalportsandimportantpositions.Itcontainsdetailsofweather,currentsandicehazardsappropriatetotheroutes,andsolinksthevolumesofSailingDirections.ItalsogivesotherusefulinformationonLoadLineRules,WeatherRouteing,etc.Thevolumeislaidouttoprovideremendedroutesforbothfull-poweredvessels,andlow-poweredandsailingvessels,inseparatechapters.OceanPassagesfortheWorldwillbekeptup-to-datebysupplements,eachnewsupplementcancellingthepreviousone.InadditionimportantamendmentswhichcannotawaitthenextsupplementarepublishedinsectionIVoftheweeklyeditionsofAdmiraltyNoticestoMariners.Alistofsuchamendmentsandnoticesinforceispublishedinthelastweeklyeditionforeachmonth.ThosestillinforceattheendoftheyeararereprintedintheAnnualSummaryofAdmiraltyNoticestoMariners.OceanPassagefortheworldisupdatedby___.A、weeklyNMB、WeatherRouteingC、circularsfromIMOD、certainnotes答案：A15.Whichchartabbreviationindicatesthebottomisclay?______A、ClyB、ClaC、ClD、C答案：C16.Forthemarinerplanninganoceanpassage,OceanPassagefortheWorldprovidesaselectionofmonlyusedrouteswiththeirdistancesbetweenprincipalportsandimportantpositions.Itcontainsdetailsofweather,currentsandicehazardsappropriatetotheroutes,andsolinksthevolumesofSailingDirections.ItalsogivesotherusefulinformationonLoadLineRules,WeatherRouteing,etc.Thevolumeislaidouttoprovideremendedroutesforbothfull-poweredvessels,andlow-poweredandsailingvessels,inseparatechapters.OceanPassagesfortheWorldwillbekeptup-to-datebysupplements,eachnewsupplementcancellingthepreviousone.InadditionimportantamendmentswhichcannotawaitthenextsupplementarepublishedinsectionIVoftheweeklyeditionsofAdmiraltyNoticestoMariners.Alistofsuchamendmentsandnoticesinforceispublishedinthelastweeklyeditionforeachmonth.ThosestillinforceattheendoftheyeararereprintedintheAnnualSummaryofAdmiraltyNoticestoMariners.OceanPassagefortheworldisupdatedby___.A、weeklyNMB、WeatherRouteingC、circularsfromIMOD、certainnotes答案：A17.Whichofthefollowingisusedtomonitorthebearingofaradartargetinrelationtoyourlocation?A、theelectronicbearinglineB、

thevariablerangemarkerC、theanti-rainclutterD、theanti-seaclutter答案：A18.Theanglebetweenthetruemeridianandthemagneticmeridianiscalled______.A、deviationB、variationC、errorD、difference答案：B19.Theamountofdetailshownonachartvarieswiththescaleofthechart.Onalargescalechart，forexample，fulldetailsofalllightsandfogsignalsareshown，butonsmallerscalestheorderofreductionofinformationinelevation，period，range，untilonanoceanchartoftheareaonlylightswitharangeof15milesormorewillnormallybeinserted，andthenonlytheirlight-starandmagentaflare.Ontheotherhand，radiobeaconsareomittedfromlargescalechartswheretheirusewouldbeinappropriate，and，unlesstheyarelongrangebeacons，fromoceancharts.Thetitleofthispassageshouldbe________.A、LightsandBeaconsonChartsB、CharacteristicofLightsandBeaconsC、CorrectionstoSmallandLargeScalechartsD、NavigationalChartsPublication答案：A20.Themagneticpassisoneoftheoldestitemsofnavigationalequipment.Itgetsitssourceofpowerfromtheearth’smagneticfield.Despitetherisingimportantandgreatconvenienceofthegyropass,themagneticpassstillretainsitsimportancebecauseofitssimplyandreliability.Themagneticpasswillremainoperativeevenwhenashipissubjectedtothefollowing:electricalpowerfailure,fire,collision,groundingorotherhazards.Magneticpassesareposedofapassbowlandabinnaclestand.Thebowlisabowl-shapedcontainerofnonmagneticmaterial(brass)whichservestocontainthemagneticelements,areferencemark,andthefluid.Itissupportedinthegimbalswithinthebinnacle.Thepasscardisanaluminumdisc,graduatedindegreesfrom0?To360?.Italsoshowscardinalandintercardinalpoints.Itcanworksatisfactorilyagainstaninclinationofwithin10’.Themagneticneedle(madeofMKmagneticsteel)stickspositivelytothefloat,whichisanaluminum,air-filledchamberinthecenterofthepasscard,anditsmagnetismneverdiminishesduetoageing.

Whatisinthecenterofthepasscard?A、themagneticneedleB、passcardC、

thefloatD、

MKmagneticsteel答案：C21.Submarines________frequently,bothsurfacedanddived,inthearea________.Agoodlookoutis________forthemwhenpassingthroughthesewaters.A、exercise,indicated,keepingB、exercise,indicated,tobekeptC、exercising,indicated,tobekeptD、exercising,indicating,keep答案：B22.Beforeswitchingongyro-pass,youshouldmakesurethatthepowersupplyonboardis______.A、highorlowB、ACorDCC、srongorweakD、onoroff答案：B23.Deep-draughtvesselsandVLCCsshallkeepatalltimesduringtheentirepassagethroughtheStraitsofMalaccaandSingaporeaminimumUKCof______.A、5mB、3.5mC、4mD、3m答案：B24.Radarmakesthemostaccuratedeterminationofthe______.A、directionofatargetB、distancetoatargetC、sizeofatargetD、shapeofatarget答案：B25.Oceanchartsare______ones.A、largescaleB、smallscaleC、inappropriateD、omitted答案：B26.ThenarrowestpartofMalaccaStraitis______,betweenthecoastalplainsofSumateraandMalaysia.A、intheNB、intheSC、intheED、intheW答案：B27.Byknowinghowlongittakesforasignaltoreturn,_______toatargetcanbedetermined.A、thebearingB、thebrightnessC、thedistanceD、therange答案：C28.Whenafeaturewhosecharacteristicsordescriptionsremainunchangedistobeshiftedtosmalldistances,______mandisused.A、MOVEB、DELETEC、AMENDD、SUBSTITUTE答案：A29.SectionIVofAdmiraltyNoticetoMarinersweeklyeditionis______.A、ExplanatoryNotes.PublicationsListB、AdmiraltyNoticestoMariners.UpdatestoStandardNauticalChartsC、ReprintsofRadioNavigationalWarningsD、AmendmentstoAdmiraltySailingDirections答案：D30.Forthemarinerplanninganoceanpassage,OceanPassagefortheWorldprovidesaselectionofmonlyusedrouteswiththeirdistancesbetweenprincipalportsandimportantpositions.Itcontainsdetailsofweather,currentsandicehazardsappropriatetotheroutes,andsolinksthevolumesofSailingDirections.ItalsogivesotherusefulinformationonLoadLineRules,WeatherRouteing,etc.Thevolumeislaidouttoprovideremendedroutesforbothfull-poweredvessels,andlow-poweredandsailingvessels,inseparatechapters.OceanPassagesfortheWorldwillbekeptup-to-datebysupplements,eachnewsupplementcancellingthepreviousone.InadditionimportantamendmentswhichcannotawaitthenextsupplementarepublishedinsectionIVoftheweeklyeditionsofAdmiraltyNoticestoMariners.Alistofsuchamendmentsandnoticesinforceispublishedinthelastweeklyeditionforeachmonth.ThosestillinforceattheendoftheyeararereprintedintheAnnualSummaryofAdmiraltyNoticestoMariners.OceanPassagefortheworlddoesnotgive____.A、routeusedinthepastbysailingshipsB、routesforpoweredvesselsC、supplementsD、usefulinformationonLoadLineRules,WeatherRouteing,etc答案：C31.AhighleveloftheGain,allowsyoutoseegreaterdetailaroundyou,butwill______thescreen.A、cleanB、clutterC、sweepD、click答案：B32.MalaccaandSingaporeStraitstogetherformthemainseawayusedbyvesselsfromEuropeandIndiaboundforMalaysianPorts,portsontheEcoastofSumatera,SingaporeandportsfartherNE.TheyprovidetheshortestrouteforvesselstradingbetweenPersianGulfandJapan.IMO-adoptedTSShavebeenestablishedthroughMalaccaStraitbetweenPermatangSedepa(OneFathomBank),andthroughSingaporeStraittotheentrancetoSouthChinaSeainthevicinityofHorsburghLight,adistanceofabout250miles.RulesforvesselsnavigatingthroughtheStraitsaregivenat2.13Depthsintheroutesvarybetweenbuttherearemanyareasofsandwavesanddepthsareliabletochange,Designatedroutesfordeep-draughtvesselsarelaiddownandshownonthecharts.Tidalstreamsarestrong.Aidstonavigationaredifficulttomaintainandmaybeunreliable.Thereisconsiderablefishingactivity,oftenadjacenttoportentrance.Thesefactors,togetherwiththedensityandconcentrationoftraffic,makenavigationthroughtheStraitsdifficult,particularlyfordeep-draughtvessels.ThelongpassagethroughtheStraitsdemandslongperiodsofvigilancetomaintaintherequiredsafestandardofnavigation.

IfyourvesselboundsfortheportsontheeastcoastofSumaterafromEurope,youmusttransit____.A、MalaccaandSingaporeStraitstogetherB、MalaccaStraitonlyC、SingaporeStraitonlyD、neitherMalaccaStraitnorSingaporeStrait答案：A33.Forthemarinerplanninganoceanpassage,OceanPassagefortheWorldprovidesaselectionofmonlyusedrouteswiththeirdistancesbetweenprincipalportsandimportantpositions.Itcontainsdetailsofweather,currentsandicehazardsappropriatetotheroutes,andsolinksthevolumesofSailingDirections.ItalsogivesotherusefulinformationonLoadLineRules,WeatherRouteing,etc.Thevolumeislaidouttoprovideremendedroutesforbothfull-poweredvessels,andlow-poweredandsailingvessels,inseparatechapters.OceanPassagesfortheWorldwillbekeptup-to-datebysupplements,eachnewsupplementcancellingthepreviousone.InadditionimportantamendmentswhichcannotawaitthenextsupplementarepublishedinsectionIVoftheweeklyeditionsofAdmiraltyNoticestoMariners.Alistofsuchamendmentsandnoticesinforceispublishedinthelastweeklyeditionforeachmonth.ThosestillinforceattheendoftheyeararereprintedintheAnnualSummaryofAdmiraltyNoticestoMariners.OceanPassagefortheworlddoesnotgive____.A、routeusedinthepastbysailingshipsB、routesforpoweredvesselsC、supplementsD、usefulinformationonLoadLineRules,WeatherRouteing,etc答案：C34.Whenafeatureistoberemovedfromthechart,______mandisused.A、MOVEB、DELETEC、AMENDD、SUBSTITUTE答案：B35.Whichoneofthefollowingiscorrectregardingtheuseofgyropass?A、GyropassneedscheckingfromtimetotimeB、Gyropassisnotinfluencedbythelatitudeandship'smotioC、GyropassmustbestoppedwhenvesselalongsideabertD、Gyropassdoesnothavetobestartedbeforesailin答案：A36.Shiphandlingoperationsincludemanoeuvringandcontrollingthevesselbymeansofengine,helmmovementsandtugassistance.Berthingmeansbringingavesseltoherberthuntiltheshipismadefast.Ashipmayberthportorstarboardsideonorboworstemon.Theterm“berth”referstothequay,orwharf,or,pierorjettywheretheshipesalongside,butitmayalsomeanaplaceinwhichavesselismooredoranchored.Theberthingandunberthingmanoeuvresrequiregreatknowledgeandskillbythemaster,officersandthecrew,aswellasanexcellentteam-workwiththerope-runnersandthemooringpartyashore.Ashipmayberthportorstarboardsideto,withnowindortide,withthetideahead,withthewindonshoreoroffshore.Themaster,thepilotandthetugskippersmusthavegoodlocalknowledgeofthetides,windconditions,depthsandaidstonavigation,buttheyalsohavetotakeintoconsiderationthetransverseandaxialthrustofthepropeller,howtheshiprespondstotherudderandhowmuchpowershedevelopswhenrunningastern.

whatistrueabouttheberth?A、Theterm“berth”simplyreferstothequay,orwharfB、Theterm“berth”simplyreferstothepierorjettyC、Theterm“berth”referstonotonlythequay,orwharf,or,pierorjetty,butalsoaplacewhereavesselisanchoredD、Theterm“berth”onlyreferstotheplaceintheanchorage.答案：C37.MalaccaandSingaporeStraitstogetherformthemainseawayusedbyvesselsfromEuropeandIndiaboundforMalaysianPorts,portsontheEcoastofSumatera,SingaporeandportsfartherNE.TheyprovidetheshortestrouteforvesselstradingbetweenPersianGulfandJapan.IMO-adoptedTSShavebeenestablishedthroughMalaccaStraitbetweenPermatangSedepa(OneFathomBank),andthroughSingaporeStraittotheentrancetoSouthChinaSeainthevicinityofHorsburghLight,adistanceofabout250miles.RulesforvesselsnavigatingthroughtheStraitsaregivenat2.13Depthsintheroutesvarybetweenbuttherearemanyareasofsandwavesanddepthsareliabletochange,Designatedroutesfordeep-draughtvesselsarelaiddownandshownonthecharts.Tidalstreamsarestrong.Aidstonavigationaredifficulttomaintainandmaybeunreliable.Thereisconsiderablefishingactivity,oftenadjacenttoportentrance.Thesefactors,togetherwiththedensityandconcentrationoftraffic,makenavigationthroughtheStraitsdifficult,particularlyfordeep-draughtvessels.ThelongpassagethroughtheStraitsdemandslongperiodsofvigilancetomaintaintherequiredsafestandardofnavigation.

WhichisnotthereasonthatnavigationthroughtheStraitsisdifficult?A、TidalstreamsareverystrongB、

NavigationalaidsmaybeunreliableC、TherearesomanydishingboarsadjacenttoportentrancesD、Thereislowdensityoftraffic答案：D38.Themagneticpassisoneoftheoldestitemsofnavigationalequipment.Itgetsitssourceofpowerfromtheearth’smagneticfield.Despitetherisingimportantandgreatconvenienceofthegyropass,themagneticpassstillretainsitsimportancebecauseofitssimplyandreliability.Themagneticpasswillremainoperativeevenwhenashipissubjectedtothefollowing:electricalpowerfailure,fire,collision,groundingorotherhazards.Magneticpassesareposedofapassbowlandabinnaclestand.Thebowlisabowl-shapedcontainerofnonmagneticmaterial(brass)whichservestocontainthemagneticelements,areferencemark,andthefluid.Itissupportedinthegimbalswithinthebinnacle.Thepasscardisanaluminumdisc,graduatedindegreesfrom0?To360?.Italsoshowscardinalandintercardinalpoints.Itcanworksatisfactorilyagainstaninclinationofwithin10’.Themagneticneedle(madeofMKmagneticsteel)stickspositivelytothefloat,whichisanaluminum,air-filledchamberinthecenterofthepasscard,anditsmagnetismneverdiminishesduetoageing.Whichisnotthereasonthattherearestillmagneticpassesonboarddespitetherisingimportanceofthegyropass?A、ThemagneticpassesaresimplicityandreliabilityB、Themagneticpassescanstillbeusedwhenelectricalpowerfailure.C、Themagneticpassesaremoreaccuratethangyropasses.D、Aftercollisionorgrounding,themagneticpassisstilloperational..答案：C39.The______transmitsownshipdatacyclicallyviatwodefinedVHFchannelsandreceivesthesamedataoftheothershipsandobjectsthatareequippedwithAISsystems.A、AISB、ECDISC、GPSD、VDR答案：A40.Linesonachartwhichconnectpointsofequalmagneticvariationarecalled______.A、magneticlatitudesB、magneticdeclinationsC、dipD、isogoniclines答案：D41.Theerrorinamagneticpasscausedbythevessel'smagnetismiscalled______.A、variationB、deviationC、passerrorD、bearingerror答案：B42.Fulldetailsofradioweatherservices,______diagramsofforecastareasfortheStraits,______inAdmiraltyListofRadioSignalsVolume3(2).A、including,aregivenB、including,givingC、includes,aregivenD、

includes,giving答案：A43.Astheradarantennascansthrough______arotation,itcanshowwherethetargetisrelativetoyourposition.A、60degreesB、360degreesC、180degreesD、90degrees答案：B44.

Atechniquereferredtoas_______allowsuserstoobtainmaximumaccuracyfromtheGPSsystem.A、AISB、DGPSC、ARPAD、RBS答案：B45.Theamountofdetailshownonachartvarieswiththescaleofthechart.Onalargescalechart，forexample，fulldetailsofalllightsandfogsignalsareshown，butonsmallerscalestheorderofreductionofinformationinelevation，period，range，untilonanoceanchartoftheareaonlylightswitharangeof15milesormorewillnormallybeinserted，andthenonlytheirlight-starandmagentaflare.Ontheotherhand，radiobeaconsareomittedfromlargescalechartswheretheirusewouldbeinappropriate，and，unlesstheyarelongrangebeacons，fromoceancharts.Oceanchartsare________ones.A、largescaleB、smallscaleC、inappropriateD、omitted答案：B46.Variationisdefinedastheangle_____.A、betweenthedirectionoftrue(geographic)northandthedirectionofthemeridianbetweenthemagneticpoleB、betweenthemagneticnorthandvessel’scourseC、

betweenthevessel’sheadingandthemagneticnorthD、betweenthepassnorthandthemagneticnorth答案：A47._____isthemainchannelofwaterexchangebetweenIndianOceanandSouthChinaSea.A、DoveStraitB、MalaccaStraitC、TaiwanStraitD、TurkishStrait答案：B48.Thenoticewhichisbasedonoriginalinformationisindicatedby______nexttothenoticenumber.A、acircleB、adotC、

astarD、adash答案：C49.TheoverallsetintheStraitistothe______.A、NEB、SWC、NWD、SW答案：C50.Everychartisliabletobeinplete______.A、thefinaljudgeofthereliancethemarinercanplaceontheinformationgivenB、itsimmediateimportancecannotalwaysbeverifiedbeforepromulgationC、throughimperfectionsinthesurveyonwhichitisbased，orsubsequentalterationstothetopographyorseafloorD、deferringthepromulgationofcertainlessimportantinformation答案：C51.Forthemarinerplanninganoceanpassage,OceanPassagefortheWorldprovidesaselectionofmonlyusedrouteswiththeirdistancesbetweenprincipalportsandimportantpositions.Itcontainsdetailsofweather,currentsandicehazardsappropriatetotheroutes,andsolinksthevolumesofSailingDirections.ItalsogivesotherusefulinformationonLoadLineRules,WeatherRouteing,etc.Thevolumeislaidouttoprovideremendedroutesforbothfull-poweredvessels,andlow-poweredandsailingvessels,inseparatechapters.OceanPassagesfortheWorldwillbekeptup-to-datebysupplements,eachnewsupplementcancellingthepreviousone.InadditionimportantamendmentswhichcannotawaitthenextsupplementarepublishedinsectionIVoftheweeklyeditionsofAdmiraltyNoticestoMariners.Alistofsuchamendmentsandnoticesinforceispublishedinthelastweeklyeditionforeachmonth.ThosestillinforceattheendoftheyeararereprintedintheAnnualSummaryofAdmiraltyNoticestoMariners.____isnotcontainedinOceanPassagefortheWorld.A、DetailsofweatherB、CurrentsappropriatetotheroutesC、IcehazardsappropriatetotheroutesD、Tonnagemeasurement答案：D52.Isogoniclinesarelinesonachartindicating______.A、pointsofequalvariationB、pointsofzerovariationC、themagneticlatitudeD、magneticdip答案：A53.Oscillationeffectswhichacpanyrollaremaximumon__________passheadings.A、northandsouthB、

eastandwestC、

northandeastD、southandwest答案：A54.passerrorisequaltothe______.A、deviationminusvariationB、variationpluspasscourseC、binedvariationanddeviationD、differencebetweentrueandmagneticheading答案：C55.UpdatedAISmessagesaretransmitted________tokeeptheinformationup-to-date.A、

everyfewsecondsB、everyfewminutesC、every10secondsD、every10minutes答案：A56.Howisvariationindicatedonasmall-scalenauticalchart?______.A、MagneticpasstableB、MagneticmeridiansC、IsogoniclinesD、Variationisnotindicatedonsmall-scalenauticalchart答案：C57.Theamountofdetailshownonachartvarieswiththescaleofthechart.Onalargescalechart，forexample，fulldetailsofalllightsandfogsignalsareshown，butonsmallerscalestheorderofreductionofinformationinelevation，period，range，untilonanoceanchartoftheareaonlylightswitharangeof15milesormorewillnormallybeinserted，andthenonlytheirlight-starandmagentaflare.Ontheotherhand，radiobeaconsareomittedfromlargescalechartswheretheirusewouldbeinappropriate，and，unlesstheyarelongrangebeacons，fromoceancharts.Thelight-starandmagentaflareareshownon________.A、largescalechartsonlyB、smallscalechartsonlyC、bothsmallandlargescalechartsD、neithersmallnorlargescalecharts答案：C58.MalaccaandSingaporeStraitstogetherformthemainseawayusedbyvesselsfromEuropeandIndiaboundforMalaysianPorts,portsontheEcoastofSumatera,SingaporeandportsfartherNE.TheyprovidetheshortestrouteforvesselstradingbetweenPersianGulfandJapan.IMO-adoptedTSShavebeenestablishedthroughMalaccaStraitbetweenPermatangSedepa(OneFathomBank),andthroughSingaporeStraittotheentrancetoSouthChinaSeainthevicinityofHorsburghLight,adistanceofabout250miles.RulesforvesselsnavigatingthroughtheStraitsaregivenat2.13Depthsintheroutesvarybetweenbuttherearemanyareasofsandwavesanddepthsareliabletochange,Designatedroutesfordeep-draughtvesselsarelaiddownandshownonthecharts.Tidalstreamsarestrong.Aidstonavigationaredifficulttomaintainandmaybeunreliable.Thereisconsiderablefishingactivity,oftenadjacenttoportentrance.Thesefactors,togetherwiththedensityandconcentrationoftraffic,makenavigationthroughtheStraitsdifficult,particularlyfordeep-draughtvessels.ThelongpassagethroughtheStraitsdemandslongperiodsofvigilancetomaintaintherequiredsafestandardofnavigation.WhatdoesTSSstandforinthispassage?A、TrafficSeparationSchemeB、TrainingSafetySystemC、TransitSingaporeStraitD、TransverseStandardStructure答案：A59.

IfamagneticpassisnotaffectedbyanymagneticfieldotherthantheEarth's，whichstatementisTRUE?A、passnorthwillbetruenorthB、TherewillbenopasserrorC、passerrorandvariationareequalD、Variationwillequaldeviation答案：C60.TheGlobalPositioningSystem(GPS)isaspace-basedglobalnavigationsatellitesystemthatprovideslocationandtimeinformationinallweather,anywhereonorneartheEarth,wherethereisanunobstructedlineofsighttofourormoreGPSsatellites.TheGPSprogramprovidescriticalcapabilitiestomilitary,civilandmercialusersaroundtheworld.Inaddition,GPSisthebackboneformodernizingtheglobalairtrafficsystem.TheAutomaticIdentificationSystem(AIS)isanautomatedtrackingsystemusedonshipsandbyVesselTrafficService(VTS)foridentifyingandlocatingvesselsbyelectronicallyexchangingdatawithothernearbyshipsandVTSstations.AISinformationsupplementsmarineradar,whichcontinuestobetheprimarymethodofcollisionavoidanceforwatertransport.InformationprovidedbyAISequipment,suchasuniqueidentification,position,course,andspeed,canbedisplayedonascreenoranECDIS.AnElectronicChartDisplayandInformationSystem(ECDIS)isaputer-basednavigationinformationsystemthatplieswithInternationalMaritimeOrganizationregulationsandcanbeusedasanalternativetopapernauticalcharts.AnECDISsystemdisplaystheinformationfromelectronicnavigationalcharts(ENC)andintegratespositioninformationfromtheGlobalPositioningSystemandothernavigationalsensors,suchasradarandAIS.Itmayalsodisplayadditionalnavigation-relatedinformation,suchasSailingDirectionsandfathometer.______willdisplaysomeinformation,suchasship'sposition,courseandspeed.A、APARB、GPSC、VTSD、ECDIS答案：D61.Themagneticpassisoneoftheoldestitemsofnavigationalequipment.Itgetsitssourceofpowerfromtheearth’smagneticfield.Despitetherisingimportantandgreatconvenienceofthegyropass,themagneticpassstillretainsitsimportancebecauseofitssimplyandreliability.Themagneticpasswillremainoperativeevenwhenashipissubjectedtothefollowing:electricalpowerfailure,fire,collision,groundingorotherhazards.Magneticpassesareposedofapassbowlandabinnaclestand.Thebowlisabowl-shapedcontainerofnonmagneticmaterial(brass)whichservestocontainthemagneticelements,areferencemark,andthefluid.Itissupportedinthegimbalswithinthebinnacle.Thepasscardisanaluminumdisc,graduatedindegreesfrom0?To360?.Italsoshowscardinalandintercardinalpoints.Itcanworksatisfactorilyagainstaninclinationofwithin10’.Themagneticneedle(madeofMKmagneticsteel)stickspositivelytothefloat,whichisanaluminum,air-filledchamberinthecenterofthepasscard,anditsmagnetismneverdiminishesduetoageing.Whichoffollowingisoneofoldestnavigationalaids