航海英语题库航海学.docx
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航海英语题库航海学
航海学
10.1航海学基本知识
[2651]______isthedistanceeastorwestmeasuredindegrees，minutesandsecondsofarcontheequatorbetweentheprimemeridianandthemeridianpassingthroughtheplace．
A.Longitude
B.Latitude
C.Height
D.Bearing
KEY:
A
[2652]______referstotheanglebetweentrueNorthandtheheadinglineoftheship．
A.Trueposition
B.Truemeridian
C.Truecourse
D.Truebearing
KEY:
C
[2653]Agnomonicprojectionisbasedona（n）______.
A.planetangentatonepoint
B.cylindertangentattheequator
C.conetangentatoneparallel
D.infiniteseriesofconestangentatselectedparallels
KEY:
A
[2654]Agreatcircletrackprovidesthemaximumsavingindistanceon______.
A.easterlycoursesinhighlatitudes
B.southerlycoursesinhighlatitudes
C.westerlycoursesinlowlatitudes
D.easterlycoursesinlowlatitudesthatcrosstheequator
KEY:
A
[2655]Alateralsystembuoydisplayingaquicklight______.
A.shouldbepassedcloseaboardoneitherside
B.indicatesthatspecialcautionisrequired
C.isusedatachannelbifurcationorjunction
D.ispaintedwithredandwhiteverticalstripes
KEY:
B
[2656]Alightcharacteristicofcompositegroupflashingindicatesthatthereisa（n）______.
A.sharpturninthechannel
B.narrowinginthechannelatthatpoint
C.junctioninthechannel
D.obstructionthatmustbelefttoport
KEY:
C
[2657]Alighthavingcharacteristicswhichincludecolorvariationsisdefinedas______.
A.switching
B.alternating
C.oscillating
D.fluctuating
KEY:
B
[2658]Alightthathasalightperiodshorterthanitsdarkperiodisdescribedas______.
A.flashing
B.pulsating
C.occulting
D.alternating
KEY:
A
[2659]Alightedpreferred-channelbuoymayshowa______.
A.fixedredlight
B.Morse（A）whitelight
C.compositegroup-flashinglight
D.yellowlight
KEY:
C
[2660]Alighthousecanbeidentifiedbyits______.
A.paintedcolor
B.lightcolorandphasecharacteristic
C.typeofstructure
D.Alloftheabove
KEY:
D
[2661]Alineofpositionformedbysightingtwochartedobjectsinlineiscalleda（n）______.
A.relativebearing
B.rangeline
C.trackline
D.estimatedposition
KEY:
B
[2662]AlineontheEarthparalleltotheequatorisa______.
A.gnomoniccurve
B.smallcircle
C.meridian
D.greatcircle
KEY:
B
[2663]Amid-channelbuoy，iflighted，willshowa______.
A.fixedredlight
B.Morse（A）whitelight
C.greenlight
D.flashingredlight
KEY:
B
[2664]Anunbuoywill______.
A.begreenincolor
B.haveanevennumber
C.belefttoportwhenenteringfromseaward
D.becylindricalinshape
KEY:
B
[2665]Aparalleloflatitudeotherthantheequatorisa______.
A.greatcircle
B.loxodromiccurve
C.smallcircle
D.gnomoniccurve
KEY:
C
[2666]AplaneperpendiculartothepolaraxiswillneverformwhatlineontheEarth'ssurface?
A.Greatcircle
B.Equator
C.Smallcircle
D.Meridian
KEY:
D
[2667]AplanethatcutstheEarth'ssurfaceandpassesthroughthepoleswillalwaysform______.
A.theequator
B.aloxodromiccurve
C.asmallcircle
D.ameridian
KEY:
D
[2668]AplanethatcutstheEarth'ssurfaceatanyangleandpassesthroughthecenterwillalwaysform______.
A.theequator
B.agreatcircle
C.asmallcircle
D.ameridian
KEY:
B
[2669]Apreferred-channelbuoymaybe______.
A.lettered
B.spherical
C.showingawhitelight
D.Alloftheabove
KEY:
A
[2670]Apreferred-channelbuoywillshowa______.
A.whitelightwhosecharacteristicisMorse（A）
B.group-occultingwhitelight
C.compositegroup-flashing（2+1）whitelight
D.compositegroup-flashing（2+1）redorgreenlight
KEY:
D
[2671]Aredpillarlight-buoy，Fl
（2）5s，istobesubstitutedforthegreenconicallight-buoycloseS．W．ofthestrandedwreck．Theabovesentencemainlyrefersto______.
A.aredbuoyistobereplacedbyagreenbuoy
B.agreenbuoyistobereplacedbyaredbuoy
C.eitheraredbuoyoragreenbuoyistobereplaced
D.neitheraredbuoynoragreenbuoyistobereplaced
KEY:
B
[2672]Arelativebearingisalwaysmeasuredfrom______.
A.truenorth
B.magneticnorth
C.thevessel'sbeam
D.thevessel'shead
KEY:
D
[2673]Arockandsandstructureextendingfromthebankoftherivertowardthechannelisknownasa______.
A.wingdam
B.towhead
C.cutoff
D.landwall
KEY:
A
[2674]ASEAMARK，I.E.ABUOY，INDICATINGTHENORTH，EAST，SOUTHORWESTFROMAFIXEDPOINT，E.G.AWRECKis______.
A.Entrancebuoy
B.Newbuoy
C.Portbuoy
D.Cardinalbuoy
KEY:
D
[2675]Asectionoftheriverthatisnarrowerthanusualandisoftennavigablefrombanktobankisa______.
A.chute
B.stabilizedchannel
C.slough
D.Cardinalbuoy
KEY:
n
[2676]Aspecialmark（yellowbuoy），iflighted，mayexhibitwhichlightrhythm?
A.Flashing
B.MorseA
C.Equalinterval
D.Occulting
KEY:
A
[2677]Aspecialpurposebuoyshallbe______.
A.lightedwithawhitelight
B.stripedblackandred
C.lightedwitharedlight
D.yellow
KEY:
D
[2678]Asphericalbuoymaybe______.
A.numbered
B.lettered
C.green
D.red
KEY:
B
[2679]Astructure，usuallymadeofstone，orcementpilings，whichextendsfromthebankatapproximatelyrightanglestothecurrentiscalleda______.
A.dike
B.revetment
C.cutoff
D.crib
KEY:
A
[2680]Avesselis______whensheisnotatanchor，madefasttotheshore，oraground．
A.underway
B.makingway
C.deadinthewater
D.apowerdrivenvessel．
KEY:
A
[2681]AV-shapedripplewiththepointoftheVpointingupstreaminarivermayindicatea______.
A.submergedrock，notdangeroustonavigation
B.sunkenwreck，notdangeroustonavigation
C.towed-underbuoy
D.Alloftheabove
KEY:
C
[2682]Awhitebuoywithabluebandis______.
A.anisolateddangermark
B.ahydrographicdatacollectionbuoy
C.amooringbuoy
D.markingarestrictedarea
KEY:
C
[2683]Awhitebuoywithanopen-facedorangediamondonitindicates______.
A.danger
B.vesselsareexcludedfromthearea
C.thebuoyisamooringbuoy
D.operatingrestrictionsareineffect
KEY:
A
[2684]Awhitebuoywithanorangerectangleonitdisplays______.
A.directions
B.dangers
C.exclusionareas
D.Alloftheabove
KEY:
A
[2685]Ayellowbuoymayexhibita（n）______.
A.fixedredlight
B.flashinglight
C.whitelight
D.occultinglight
KEY:
B
[2686]Ayellowbuoymaymarka（n）______.
A.wreck
B.shoalarea
C.anchoragearea
D.middleground
KEY:
C
[2687]Anorangeandwhitebuoyindicatingavessel-exclusionareawillbemarkedwithwhatsymbol?
A.Open-faceddiamond
B.Diamondwithacross
C.Circle
D.Square
KEY:
B
[2688]Anorangeandwhitebuoymarkingadangerareawillhavewhatsymbolonit?
A.Open-faceddiamond
B.Diamondwithacross
C.Circle
D.Square
KEY:
A
[2689]Anorangeandwhitebuoymarkinganareawhereoperatingrestrictionsareineffectwillbemarkedwithwhichsymbol?
A.Open-faceddiamond
B.Diamondwithacross
C.Circle
D.Rectangle
KEY:
C
[2690]Anorangeandwhitebuoywitharectangleonitdisplays______.
A.directions
B.distances
C.locations
D.Alloftheabove
KEY:
D
[2691]Branfordreefis______.
A.ahardsandshoalmarkedwithalight
B.completelysubmergedatallstagesofthetide
C.surroundedbyrocksawashatlowwaterspringtides
D.asmall，low，sandyisletsurroundedbyshoalwater
KEY:
B
[2692]Buoysaremarkedwithreflectivematerialtoassistintheirdetectionbysearchlight.WhichstatementisTRUE?
A.Asafe-waterbuoywilldisplayredandwhiteverticalstripesofreflectivematerial.
B.Allreflectivematerialiswhitebecauseitisthemostvisibleatnight.
C.Aspecial-purposemarkwilldisplayeitherredorgreenreflectivematerialtoagreewithitsshape.
D.Apreferred-channelbuoydisplayseitherredorgreenreflectivematerialtoagreewiththetopbandofcolor.
KEY:
D
[2693]Buoyswhichmarkdredgingareasarepainted______.
A.black
B.yellow
C.green
D.red
KEY:
B
[2694]Buoyswhichmarkisolateddangersarepaintedwithalternating______.
A.redandblackbands
B.greenandblackbands
C.redandwhitestripes
D.greenandwhitebands
KEY:
A
[2695]Buoyswhichonlymarktheleftorrightsideofthechannelwillneverexhibitalightwithwhichcharacteristic?
A.Flashing
B.Quickflashing
C.Compositegroupflashing
D.Equalinterval（isophase）
KEY:
C
[2696]ExceptforN-Scourses，andE-Wcoursesontheequator，agreatcircletrackbetweentwopoints，whencomparedtoarhumblinetrackbetweenthesametwopoints，will______.
A.alwaysbenearertotheequator
B.alwaysbenearertotheelevatedpole
C.benearertothepoleintheNorthernHemisphereandnearertotheequatorintheSouthernHemisphere
D.benearertothepoleortheequatordependingonthelatitudesofthearrivalanddeparturepositions
KEY:
B
[2697]Fishingstake，thepositionofwhichfrequently______，existintheareacoveredbythischart．
A.removed
B.altered
C.corrected
D.converted
KEY:
B
[2698]Fromyourpositionyouobservearotatingwhiteandgreenlighttothenorth.Thislightismostlikely______.
A.fromasubmarineonthesurface
B.thelightatSoutheastPoint
C.atanairport
D.onacoastalpatrolvessel
KEY:
C
[2699]HowistheintensityofalightexpressedintheLightLists?
______.
A.Luminousrange
B.Geographicrange
C.Nominalrange
D.Meteorologicalrange
KEY:
C
[2700]Howwouldyoupassaredbuoyinthemaritimebuoyagesystem"A"?
A.keepthebuoyonthevessel'sstarboardsidewhenapproachingaport
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