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1、海图及海图做业481.______chart3994，positionsreadfromthischartshouldbeshifted0.03minutesNorthward．A．ToconsiderB．TocheckC．ToexamineD．Toagreewith2.______isnotaposition-fixingsystem．A．HifixB．HyperfixC．TrisponderD．WGS843.______theincompletenatureofthesurvey，heavydraughtvesselsare

2、warnednottonavigatewithinthe10fathomline．A．BecauseB．OwingtoC．HavingbeenD．Being4.Achartpositionenclosedbyasquareisa（n）______．A．fixB．estimatedpositionC．deadreckoningpositionD．runningfix5.Achartprojectiondepictingthepolesandasmallareaoneithersideofaconnectingmeridian，th

3、atissometimesusedforstarcharts，isthe______．A．AzimuthalgnomonicprojectionB．LambertconformalprojectionC．TransverseMercatorprojectionD．Polyconicprojection6.Achartwithascaleof1:80，000wouldfallintothecategoryofa______．A．sailingchartB．generalchartC．coastalchartD．harborchar

4、t7.Apolyconicprojectionisbasedona______．A．PlanetangentatonepointB．CylindertangentatoneparallelC．ConetangentatoneparallelD．Seriesofconestangentatselectedparallels8.Arevisedprintofachartismade______．A．aftereverymajorhydrographicsurveyoftheareacoveredbythechartB．whenthe

5、rearenumerouscorrectionstobemadeorthecorrectionsareextensiveC．whenalow-stocksituationoccursandminorcorrectionsaremadeD．everytwoyearstoupdatethemagneticvariationinformation1259.Atruebearingofachartedobject，whenplottedonachart，willestablisha______．A．FixB．Lineofposition

6、C．RelativebearingD．Range10.Allstraightlinesrepresentgreatcircletracksonachartbasedona（n）______．A．MercatorprojectionB．PolyconicprojectionC．OrthographicprojectionD．Gnomonicprojection11.Areasenclosedbyalongandshortdashedmagentalineindicate______．A．CableareasB．Dumpinggro

7、undsC．FishtrapareasD．Precautionaryareas12.Chartlegendsprintedincapitallettersshowthattheassociatedlandmarkis______．A．inconspicuousB．conspicuousC．agovernmentfacilityorstationD．aradiotransmitter13.Chartsshouldbecorrectedbyusinginformationpublishedinthe______．A．LightLis

8、tB．AmericanPracticalNavigatorC．NoticetoMarinersD．CoastPilot14.ChartsshowingthecoastofMexicoareproducedbytheUnitedStates______．A．Nat