通信英语习题1.docx

通信英语习题1.docx

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通信英语习题1

通信英语综合练习题

001.IMOhasdecidedthatallshipover300GTmustbefittedwithatNAVTEXreceiver.

A.by01Feb1992B.by01Aug1993

C.between01Feb1992and01Feb1999D.before01Feb1992

002.GMDSSistoprovidewithreliablecommunication.

A.alllargepassengervesselsB.freightersofmorethan300gtincoastalwaters

C.allpassengershipsandcargoshipsengagedininternational-voyages

D.allpassengershipsandcargoshipsof300gtupwardsinopensea.

003.Thecomplyingvesselscantransmitship-to-shoredistressalertsbyatleast.

A.onemeans,whethersatelliteorterrestrialtechniquesB.twomeans,whethersatelliteorterrestrialtechniques

C.twoseparateandindependentmeans,eachusingdifferentradiocommunicationservice.

D.twomeans,suchasMFDSCandHFDSC.

004.Thequalityofthemessagecanbeaffectedby.

A.climatic（climate）B.sunshineC.humanbeingsD.bothAandB

005.Withinthepolarareas,itistoseeasatelliteingeo-stationaryorbit.

A.impossibleB.possibleC.easyD.difficult

006.TheInmarsatsystemisopenforusebycountriesonanon-discriminatorybasis.

A.someB.lotsofC.manyD.all

007.WiththehelpofGMDSS,canbealertedtoadistressincidentassoonaspossible.

A.allshipsinalargerseaareaB.onlytheseaauthoritiesashore

C.theSARunitsashoreandatseaD.theportradioandthecoaststation.

008.InareascoveredbyInmarsat,HFcanbeusedasantosatellitecommunications.

A.alternationB.alternateC.alterD.alternative

009.Whenreceivingadistressalert,theSARauthoritiesashoreandtheshipsinthevicinityoftheshipsindistresswillinacoordinatedsearchandrescueoperationwiththeminimumdelay.

A.assistB.sendarescuevesselC.searchthedistressareaD.reachthedistresspositionatonce

010.InwhichyearistheCOSPAS-SARSATsystemestablished?

A.1980B.1981C.1979D.1982

011.ItisquiteforanSESoperatortosendadistressalert.

A.easyandexpensiveB.simpleandcertainC.dangerousandstableD.difficultandcompulsory

012.AnyshipsfittedwithSEScanandthroughthesatellitesystemwhensendingadistressalert.

A.enterthesystem/contactanRCCB.accesstoInmarsat/establishcontactwithaCES

C.haveabsoluteprioritytoenterthesystem/makecontactwithaCES

D.enterthesystemgradually/waitforrescue

013.What’stheadvantagewhenusingthesatellites?

A.Themessagecanbedirectedtothedesiredlocation.B.Themessagecanfollowtheearth'scurvature

C.Thequalityofmessagecannotbeaffectedbyclimatic.

D.Therangeofthemessageextendandthequalityofreceptionisimproved.

014.TheDSCfrequencyfordistressalertinginAreaA2is.

A.2182KHZB.2174.5KHZC.2192KHZD.2187.5KHZ

015.WhatChannelisgeneralcommunicationused?

A.Anyappropriatechannelexceptpubliccommunication

B.Anyappropriatechannelexceptforpubliccommunication

C.Anyappropriatechannelbesidespubliccommunication

D.Anyappropriatechannelbesidepubliccommunication

016.Whydosomestationskeepsilence?

A.Becausetheyarenotengagedinthedistresstraffic.

B.Theywillaffectthetransmissionofthedistresstraffic.

C.Thepowersofthesestationsareveryweak.D.Theyarenotinchargeofsearchandrescue.

017.Generalradiocommunicationsintheglobalsystemarethosebetweenconcerningthemanagementandoperationoftheshipsandmayhaveimpactontheirsafety.

A.SARpartyandtheshipindistressB.SARauthoritiesandtheshipindistressandsurvivalcraft

C.ashipstationandanycoaststationD.shipsstationsandshore-basedcommunicationsnetwork

018.Itisrequiredthatshipsproceedingatseashouldkeepcontinuouswatchon.

A.VHFchannels16and13B.appropriateDSCdistressandsafetyfrequencies

C.InmarsatTDMmessagechannelD.VHFchannel70andchannel8

019.TheARQmodeshouldbeapplied.

A.whentwostationscommunicatewitheachotherB.inanyradiosystemandatanytime

C.whenoneshipsendsamessagetoanotherstationD.forcommunicationamongsomestations.

020.Whatinformationwilladistressalertcontain?

A.natureofdistressB.typeofassistancerequired.

C.courseandspeedandtimeatwhichtheinformationwasrecorded.D.A.B.C.areallright

021.Aradiodeterminationsystembasedonthecomparisonofreferencesignalswithradiosignalsreflected,orretransmittedfromthepositiontobedetermined,is.

A.DFB.RadarSystemC.DSCSystemD.COSPAS-SARSAT

022.Withthehelpofmoderntechnology,shipsareabletoreceiveautomatedbroadcastofsafetymessages.

A.bydayoratnightB.almostroundtheclock

C.somewhatandsometimeD.fromsunrisetosunset

023.TheWWNWSisacoordinatedglobalserviceforthebroadcastbyradioofvitalinformationontomarinenavigation.

A.Ship'smovementB.safetyC.Ship'smanagementD.hazards

024.DistressalertswillberelayedonthewhentheRCCconsidersitnecessary.

A.dedicatedsystemB.MSIbroadcastsC.518KHzD.channel16

025.Thefrequency518KHzwillbeusedtotransmitandwarningsinNAVTEX.

A.navigational/typhoonB.traffic/meteorologicalC.marine/hurricane

D.navigational/meteorological

026.ItispossibleforshipstoreceivesafetymessagetransmittedbyNavtexstation.

A.inanyInmarsatregionsB.ineachNavtexareaC.inanydistance

D.inAreasA3andA4

027.ANavtexstationineachNAVAREAisusuallyallowedtohavefortransmission.

A.10minutesevery4hoursB.halfanhoureveryotherhourC.irregularperiodoftime

D.5minutesevery2hours

028.ThedifferencebetweeninternationalandnationalNavtexServiceislimitedto.

A.frequencyallocatedB.bothlanguageandfrequencyC.languageusedD.transmissionpowerandtime

029.Navtextransmitteridentificationcharacterisusedtoidentifythebroadcastswhicharetobeacceptedbythereceiverandthosearetoberejected.

A.B1B.B2C.MARD.NNN

030.ThereceivingstationscanusetheB2charactertodifferentclassesofmessages.（ThemicroprocessorinreceivingstationscanusetheB1charactertodifferentNAVTEXtransmittingstation.）

A.identifyB.correctC.rejectD.printout

031.IfEGCreceiversharesasameantennawithInmarsatSES,itmeansthatitcanreceiveMSI.

A.fromanyInmarsatsatelliteB.fromanyappropriateNavtexandEGCstation

C.viathesatellitetheSESistrackingD.fromanyRCCandcoaststation

032.WhyshouldtheSESoperatorsbeverycarefulwhentheshipenterstheareawherethreeoceanregionsoverlap?

Because.

A.theweatherisalwaysterribleB.theconditionthereiscomplicated

C.thesignalsaretoostrongD.theirSESmayreceivethesignalsfromunwantedsatellite

033.TheestablishmentofInmarsatasanindependentorganizationmarkedagreatstepforwardformaritimeradiocommunications.Whatdose“markedagreatstep”meaninthesentence?

A.TorunfasterthaneverB.TogoforwardC.Tomarchwithoutstopping

D.Asignificantsymbolofagreatimprovementinmaritimecommunication

034.InadditiontomeetingtherequirementofSeaAreaA1,everyshipengagedonvoyageinSeaAreaA2shallbeprovidedwith.

A.MFradioinstallationwithDSCB.SES

C.MF/HFradiotelephoneinstallationD.2187.5KHzwatchreceiver

035.isaspacesystemusingoneormoreartificialearthsatellites.

A.SatellitenetworkB.SatellitelinkC.InmarsatD.Satellitesystem

036.Thesatellitesoverthemajoroceanregionscovertheglobe.

A.besidesthepolarregionsB.includingtheNorthPoleandSouthPole

C.above76Nandbelow76SD.asfarnorthandsouth76º

037.Therearesomeback-upsatellitesintheeventoffailure.Iftheoperationalsatelliteisoutofwork,.

A.communicationsinthewholesystemwillstopB.theglobalsystemwillbedamaged

C.theback-uponewilltakeitsplaceD.thewholesystemwillnotwork

038.ThepositionoftheIOR（Por,AorE,AorW）satelliteintheInmarsatsystemisabovetheequator.

A.64.5EB.178EC.15.5WD.54W

039.TheGMDSSdefinesfourseaareabasedonthe.

A.locationandcapacityofthefacilitieslocatedonboardshipsB.positionandtypeofashipstation

C.capacityandlocationofshorebasedcommunicationfacilities

D.positionandcapacityofmobilecommunicationstations

040.TheNCSofInmarsat-AsystemintheIOR（orPOR）isin.

A.Goonhilly,UKB.Yamaguchi,JapanC.Perth,AustraliaD.Southbury,USA

041.TheNetworkCoordinationStationfortheInmarsat-AcoaststationsintheAORE（orAORW）isin.

A.Goonhilly,UKB.Yamaguchi,JapanC.Perth,AustraliaD.Southbury,USA

042.ThesourcesofenergyfittedinGMDSScomplyingvesselsmustbe.

A.ThemainsourcesofenergyB.Emergencysourceofelectricalpower

C.ThereservesourceofenergyD.Allofabove

043.Amobileearthstationinthemaritimemobilesatelliteservice,whichislocatedonboardship,iscalled.

A.anLESB.anSESC.ashipstationD.alandmobilestation

044.Aftersuccessfulcommissioning,thewillpermittheSESaccesstosystem.（Withoutpermissionsof,ashipearthstationcannotenterthesystem.）

A.InmarsatB.IMOC.ITUD.CES

045.Ingeneral,therearetwopartsinanSES.Oneoftheseisantennaequipment,alsoreferredtoas.

A.BDEB.UDEC.AEPD.ADE

046.ToestablishacommunicationchannelforthetelexserviceintheInmarsat-Aterminal,youshouldfirst.

A.establishacommunicationchannelfromtheCES,viatheInternationalTelexNetworktothefinaldestination

B.setupacommunicationchannelfromyourSES,viaasatellite,toaCESwithinyouroceanregion.

C.set