丙类航海英语题库

第二章航海图书资料第四节海图和海图作业1.chart 3994,positions read from thischart should be shifted 0.03 minutes Northward.A.To considerB.To checkC.To examineD.To agree withD2.is not a position-fixing system.A.HifixB.HyperfixC.TrisponderD.WGS84D3.the incomplete nature of the survey,heavy draught vessels are warned not to navigatewithin the 10 fathom line.A.BecauseB.Owing toC.Having beenD.BeingB4.A chart position enclosed by a square is a(n)A.fixB.estimated positionC.dead reckoning positionD.running fixB5.A chart projection depicting the poles and asmall area on either side of a connectingmeridian,that is sometimes used for star charts,is t he.A.Azimuthal gnomonic projectionB.Lambert conformal projectionC.Transverse Mercator projectionD.Polyconic projectionC6.A chart with a scale of 1:80,000 would fallinto the category of a.A.sailing chartB.general chartC.coastal chartD.harbor chartC7.A polyconic projection is based on a.A.Plane tangent at one pointB.Cylinder tangent at one parallelC.Cone tangent at one parallelD.Series of cones tangent at selected parallelsD8.A revised print of a chart is ma d e A.after every major hydrographic survey of thearea covered by the chartB.when there are numerous corrections to bemade or the corrections are extensiveC.when a low-stock situation occurs and minorcorrections are madeD every two years to update the magneticvariation informationC9.A true bearing of a charted object,whenplotted on a chart,will establish a.A.FixB.Line of positionC.Relative bearingD.RangeB10.All straight lines represent great circle trackson a chart based on a(n).A ,Mercator proj ectionB.Polyconic projectionC.Orthographic projectionD.Gnomonic projectionD11.Areas enclosed by a long and short dashedmagenta line i n d i c a t e.A.Cable areasB.Dumping groundsC.Fish trap areasD.Precautionary areasC12.Chart legends printed in capital letters showthat the associated landmark is.A.inconspicuousB.conspicuousC.a government facility or stationD.a radio transmitterB13.Charts should be corrected by usinginformation published in t he.A.Light ListB.American Practical NavigatorC.Notice to MarinersD.Coast PilotC14.Charts showing the coast of Mexico areproduced by the United S t a t e s A.National Geospatial-Intelligence AgencyB.Coast GuardC.Naval ObservatoryD.National Ocean ServiceA15.Distance along a track line is measured on aMercator chart by using t he.A.latitude scale near the middle of the track lineB.longitude scale near the middle of the tracklineC.latitude scale at the midlatitude of the chartD.latitude or longitude scale at the middle of thescaleA16.Every chart is liable to be incompleteA.the final judge of the reliance the mariner canplace on the information givenB.its immediate importance cannot always beverified before promulgationC.through imperfections in the survey on whichit is based,or subsequent alterations to thetopography or sea floorD.deferring the promulgation of certain lessimportant informationC17.For what purpose would using a Lambertconformal chart be more convenient than using aMe r c a t o r.A.Plotting radio bearings over a long distanceB.Determining latitude and longitude of a fixC.Measuring rhumb line distancesD.Measuring rhumb line directionsA18.Magnetic information on a chart may beA.found in the center(s)of the compass rose(s)B.indicated by isogonic linesC.found in a note on the chartD.all of the aboveD19.Many of the soundings shown on the chart arederived f r om.Undue reliance should notbe placed upon them.A.Complete and often very poor surveysB.Correct and often very good surveysC.Inadequate and often very old surveysD.Adequate and present surveysC20.Navigational charts are frequentchanges,the important one of which arepromulgated by Admiralty Notices to Mariners.A.Published withB.Combined withC.In connection withD.Subject toD21.On a Mercator chart,1 nautical mile is equalto.A.1 minute of longitudeB.1 degree of longitudeC.1 minute of latitudeD.1 degree of latitudeC22.On chart,bearings to near objects should beused in preference to objects farther off,becauseA.a small error in bearing or in laying it down onthe chart has a greater effect in misplacing theposition the longer the line to be drawnB.all scales are kept updated for vital informationby Notices to MarinersC.the larger the scale of the chart,the greater thedetail that can be shown on itD.the mariner using the medium scale charts forpassage along a coast need not transfer on to alarge scale for short distancesA23.On this chart only the principle tonavigation are shown.A.equipment，sB.toolsC.apparatusD.aidsD24.Particular care is needed when navigating inthe vicinity of as very few of thesefeatures have been fully surveyed to modernstandards to determine their correct position,fullextent,or the least depth over them.A.SW of Cocos IslandsB.oceanic dangers or seamountsC.undiscovered dangersD.the continental shelfB25.That the scale of any part of a chart to belarger than the scale of the survey is.A.very rareB.commonC.oftenD.reasonableA26.The arrangement