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What is NOT an advantage of the rhumb line track over a great circle track?
A.Easily plotted on a Mercator chart
B.Negligible increase in distance on east-west courses near the equator
C.Does not require constant course changes
D.Plots as a straight line on Lambert conformal charts
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更多 “ 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 ” 相关考题
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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 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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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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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（）.A
it is fasterB
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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Except for N-S courses，and E-W courses on the equator，a great circle track between two points，when compared to a rhumb line track between the same two points，will（）.A
always be nearer to the equatorB
always be nearer to the elevated poleC
be nearer to the pole in the Northern Hemisphere and nearer to the equator in the Southern HemisphereD
be nearer to the pole or the equator depending on the latitudes of the arrival and departure positions
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单选题A great circle track provides the maximum saving in distance on（）.A
easterly courses in high latitudesB
southerly courses in high latitudesC
westerly courses in low latitudesD
easterly courses in low latitudes that cross the equator
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单选题The equator is（）.A
the primary great circle of the Earth perpendicular to the axisB
the line to which all celestial observations are reducedC
the line from which a celestial body's altitude is measuredD
All of the above
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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
Meridians appear as curved lines converging toward the nearer poleD
Parallels，except the equator，appear as curved lines
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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
straight lineD
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 is the purpose of the limit switch on gravity davits?（）A
To cut off the power when the davits hit the track safety stopsB
To stop the davits from going too fastC
To cut off the power when the davits are about 12 inches or more from the track safety stopsD
None of the above
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单选题In which voyage, between two points, is the rhumb line distance not approximately the same as the great circle distance?（）.A
The two points are in low latitudes in the same hemisphereB
The two points are in high latitudes in the same hemisphereC
The two points are near the equator, but in different hemispheresD
One point is near the equator, one point is in a high latitude, and both are near the 180th meridian
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名词解释题线路中心线 center line of track
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