Distance along a track line is measured on a Mercator chart by using the ______.A.latitude scale near the middle of the track lineB.longitude scale near the middle of the track lineC.latitude scale at the midlatitude of the chartD.latitude or longitude scale at the middle of the scale

Distance along a track line is measured on a Mercator chart by using the ______.

A.latitude scale near the middle of the track line

B.longitude scale near the middle of the track line

C.latitude scale at the midlatitude of the chart

D.latitude or longitude scale at the middle of the scale


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The distance between any two meridians measured along a parallel of latitude ______.A.increases in north latitude and decreases in south latitudeB.decreases as DLO increasesC.increases with increased latitudeD.decreases with increased latitude

The distance between any two meridians measured along a parallel of latitude and expressed in miles is the ______.A.difference in longitudeB.mid-longitudeC.departureD.meridian angle

A Mercator chart is a ______.A.cylindrical projectionB.simple conic projectionC.polyconic projectionD.rectangular projection

The path that a vessel is expected to follow,represented on a chart by a line drawn from the point of departure to the point of arrival,is the ______.A.DR plotB.track lineC.headingD.estimated course

What is NOT an advantage of the rhumb line track over a great circle track?A.Easily plotted on a Mercator chartB.Negligible increase in distance on east-west courses near the equatorC.Does not require constant course changesD.Plots as a straight line on Lambert conformal charts

What is the major advantage of a rhumb line track?A.The vessel can steam on a constant heading (disregarding wind,current,etc)B.The rhumb line is the shortest distance between the arrival and departure pointsC.It is easily plotted on a gnomonic chart for comparison with a great circle courseD.It approximates a great circle on east-west courses in high latitudes

When navigating in high latitudes and using a chart based on a Lambert conformal projection,______.A.a straight line drawn on the chart approximates a great circleB.the chart should not be used outside of the standard parallelsC.the course angle is measured at the mid-longitude of the track lineD.distance cannot be measured directly from the chart

When using a Lambert conformal chart in high latitudes,angles such as bearings are measured in reference to ______.A.the meridian through the object of the bearingB.the meridian through the ship's positionC.the meridian midway between the ship and the objectD.any meridian

For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?A.Plotting radio bearings over a long distanceB.Determining latitude and longitude of a fixC.Measuring rhumb line distancesD.Measuring rhumb line directions

You are running parallel to the coast and take a running fix using bearings of the same object.If you are making less speed than used for the running fix,in relation to the position indicated by the fix,you will be ______.A.Closer to the coastB.Farther from the coastC.On the track line ahead of the fixD.On the track line behind the fix

______:the vertical distance measured on the vessel’s side amidships from the load water line to the upper side of the freeboard deck or a point corresponding to it.A.BuoyancyB.FreeboardC.DraftD.Displacement

Which two chart base types can you select using the Chart Wizard?()A、Line B、Column C、Bubble D、Flowchart E、OHLC candle stock

单选题Besides saving distance along the track line,another advantage of the Scharnow Turn over the Williamson Turn in a man overboard situation because().Ait is fasterBit can be used in both the immediate action and the delayed action situationsCin fog,if the turn is started as soon as the man goes over,the vessel will be at the point where he went over when the turn is completedDit returns the vessel to the original track line on a reciprocal course

单选题For what purpose would using a Lambert conformal chart be more convenient than using a Mercator?()APlotting radio bearings over a long distanceBDetermining latitude and longitude of a fixCMeasuring rhumb line distancesDMeasuring rhumb line directions

单选题What is NOT an advantage of the rhumb line track over a great circle track? ()AEasily plotted on a Mercator chartBNegligible increase in distance on east-west courses near the equatorCDoes not require constant course changesDPlots as a straight line on Lambert conformal charts

单选题When using a Lambert conformal chart in high latitudes,angles such as bearings are measured in reference to ().Athe meridian through the object of the bearingBthe meridian through the ship's positionCthe meridian midway between the ship and the objectDany meridian

单选题Which information is found in the chart title().AA rhumb line appears as a straight lineBDistance is measured at the midlatitude of the track lineCMeridians appear as curved lines converging toward the nearer poleDParallels,except the equator,appear as curved lines

单选题The distance between any two meridians measured along a parallel of latitude and expressed in miles is the ().Adifference in longitudeBmid-longitudeCdepartureDmeridian angle

单选题The distance between any two meridians measured along a parallel of latitude ().Aincreases in north latitude and decreases in south latitudeBdecreases as DLO increasesCincreases with increased latitudeDdecreases with increased latitude

单选题You are running parallel to the coast and take a running fix using bearings of the same object.If you are making less speed than used for the running fix,in relation to the position indicated by the fix,you will be().ACloser to the coastBFarther from the coastCOn the track line ahead of the fixDOn the track line behind the fix

单选题On a gnomonic chart,a great circle track between Los Angeles and Brisbane will appear as a ().Aloxodromic curveBcurved line concave to the equatorCstraight lineDspiral approaching the poles as a limit

单选题Distance along a track line is measured on a Mercator chart by using the ().Alatitude scale near the middle of the track lineBlongitude scale near the middle of the track lineClatitude scale at the midlatitude of the chartDlatitude or longitude scale at the middle of the scale

单选题What defines a great circle? ()AA curved line drawn on a Mercator ChartBA course line that inscribes a loxodromic curveCThe shortest distance between any two points on the earthDThe smallest circle that can be drawn on the face of a sphere

单选题What area of the earth cannot be shown on a standard Mercator chart().AEquatorBAreas including both North and South latitudesCNorth and South PolesDA narrow band along the central meridian

单选题A Mercator chart is a ().Acylindrical projectionBsimple conic projectionCpolyconic projectionDrectangular projection

单选题On chart,bearings to near objects should be used in preference to objects farther off,because().Aa small error in bearing or in laying it down on the chart has a greater effect in misplacing the position the longer the line to be drawnBall scales are kept updated for vital information by Notices to MarinersCthe larger the scale of the chart,the greater the detail that can be shown on itDthe mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances

单选题When navigating in high latitudes and using a chart based on a Lambert conformal projection,().Aa straight line drawn on the chart approximates a great circleBthe chart should not be used outside of the standard parallelsCthe course angle is measured at the mid-longitude of the track lineDdistance cannot be measured directly from the chart