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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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更多 “ 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 ” 相关考题
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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
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it is fasterB
it can be used in both the immediate action and the delayed action situationsC
in 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 completedD
it returns the vessel to the original track line on a reciprocal course
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单选题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
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单选题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
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单选题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
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单选题Which information is found in the chart title（）.A
A rhumb line appears as a straight lineB
Distance is measured at the midlatitude of the track lineC
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difference in longitudeB
mid-longitudeC
departureD
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单选题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
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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（）.A
Closer to the coastB
Farther from the coastC
On the track line ahead of the fixD
On the track line behind the fix
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单选题On a gnomonic chart，a great circle track between Los Angeles and Brisbane will appear as a （）.A
loxodromic curveB
curved line concave to the equatorC
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spiral approaching the poles as a limit
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单选题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
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单选题What defines a great circle? （）A
A curved line drawn on a Mercator ChartB
A course line that inscribes a loxodromic curveC
The shortest distance between any two points on the earthD
The smallest circle that can be drawn on the face of a sphere
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单选题What area of the earth cannot be shown on a standard Mercator chart（）.A
EquatorB
Areas including both North and South latitudesC
North and South PolesD
A narrow band along the central meridian
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单选题A Mercator chart is a （）.A
cylindrical projectionB
simple conic projectionC
polyconic projectionD
rectangular projection
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单选题On chart，bearings to near objects should be used in preference to objects farther off，because（）.A
a 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 drawnB
all scales are kept updated for vital information by Notices to MarinersC
the larger the scale of the chart，the greater the detail that can be shown on itD
the mariner using the medium scale charts for passage along a coast need not transfer on to a large scale for short distances
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单选题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
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