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Leeway is the ______.
A.difference between the true course and the compass course
B.momentum of a vessel after her engines have been stopped
C.lateral movement of a vessel downwind of her intended course
D.displacement of a vessel multiplied by her speed
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更多 “ Leeway is the ______.A.difference between the true course and the compass courseB.momentum of a vessel after her engines have been stoppedC.lateral movement of a vessel downwind of her intended courseD.displacement of a vessel multiplied by her speed ” 相关考题
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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
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On a nautical chart，the inner ring of a compass rose indicates ______.A.true directionsB.compass errorC.deviationD.magnetic directions
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The most accurate method of determining gyrocompass error while underway is by ______．A.Comparing the gyro azimuth of a celestial body with the computed azimuth of the bodyB.Comparing the gyro heading with the magnetic compass headingC.Determining from the chart the course made good between celestial fixesD.It cannot be determined accurately at sea due to drift of unknown currents
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A vessel is wind rode when it is ______.A.at anchor and heading into the windB.backing into the windC.carrying lee rudderD.necessary to apply a leeway correction to the course
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Compass error is equal to the ______.A.deviation minus variationB.variation plus compass courseC.combined variation and deviationD.difference between true and magnetic heading
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Deviation is the angle between the ______.A.true meridian and the axis of the compass cardB.true meridian and the magnetic meridianC.magnetic meridian and the axis of the compass cardD.axis of the compass card and the degaussing meridian
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If a magnetic compass is not affected by any magnetic field other than the Earth’s which statement is TRUE?______.A.Compass error and variation are equalB.Compass north will be true northC.Variation will equal deviationD.There will be no compass error
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Magnetic compass deviation______．A.varies depending upon the bearing usedB.is the angular difference between magnetic north and compass northC.is published on the compass rose on most nautical chartsD.is the angular difference between geographic and magnetic meridians
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Magnetic heading differs from compass heading by______．A.compass errorB.true headingC.variationD.Deviation
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Magnetic dip is a measurement of the angle between the ______.A.geographic pole and the magnetic poleB.lubber’s line and true northC.horizontal and the magnetic line of forceD.compass heading and the magnetic heading
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单选题The difference between magnetic heading and compass heading is called（）.A
variationB
deviationC
compass errorD
drift
考题
单选题A vessel is wind rode when it is（）.A
at anchor and heading into the windB
backing into the windC
carrying lee rudderD
necessary to apply a leeway correction to the course
考题
单选题If a magnetic compass is not affected by any magnetic field other than the Earth’s，which statement is TRUE? （）A
Compass error and variation are equalB
Compass north will be true northC
Variation will equal deviationD
There will be no compass error
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单选题When changing from a compass course to a true course you should apply（）.A
variationB
deviationC
variation and deviationD
a correction for the direction of current set
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单选题Deviation is the angle between the（）.A
true meridian and the axis of the compass cardB
true meridian and the magnetic meridianC
magnetic meridian and the axis of the compass cardD
axis of the compass card and the degaussing meridian
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单选题As a vessel changes course to starboard，the compass card in a magnetic compass（）.A
remains aligned with compass northB
also turns to starboardC
first turns to starboard then counterclockwise to portD
turns counterclockwise to port
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单选题The lubber’s line of a magnetic compass（）.A
always shows true north directionB
indicates the vessel's headingC
is always parallel to the vessel's transomD
is located on the compass card
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单选题When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）A
The course change should be made rapidly to prevent transient induced magnetism while passing the intercardinal headingsB
After the new heading is reached，the vessel should steam on that course for at least two minutes before the adjustmentC
During the course change，you should gently tap the compass to remove any error caused by friction on the pivot bearingD
After steadying on the new heading，the compass card should be slewed by a magnet and allowed to oscillate freely to remove any gaussin error
考题
单选题The most accurate method of determining gyrocompass error while underway is by（）.A
Comparing the gyro azimuth of a celestial body with the computed azimuth of the bodyB
Comparing the gyro heading with the magnetic compass headingC
Determining from the chart the course made good between celestial fixesD
It cannot be determined accurately at sea due to drift of unknown currents
考题
单选题If the gyrocompass error is east，what describes the error and the correction to be made to gyrocompass headings to obtain true headings?（）A
The readings are too low (small numerically) and the amount of the error must be added to the compass to obtain trueB
The readings are too low and the amount of the error must be subtracted from the compass to obtain trueC
The readings are too high (large numerically) and the amount of the error must be added to the compass to obtain trueD
The readings are too high and the amount of the error must be subtracted from the compass to obtain true
考题
单选题Leeway is the（）.A
difference between the true course and the compass courseB
momentum of a vessel after her engines have been stoppedC
lateral movement of a vessel downwind of her intended courseD
displa ement of a vessel multiplied by her speed
考题
单选题ECDIS must be able to perform all of the following EXCEPT（）.A
determine true bearing and distance between two geographical pointsB
determine magnetic compass deviationC
transform a local datum to the WGS-'84 datumD
convert graphical coordinates to display coordinates
考题
单选题Magnetic compass deviation（）.A
varies depending upon the bearing usedB
is the angular difference between magnetic north and compass northC
is published on the compass rose on most nautical chartsD
is the angular difference between geographic and magnetic meridians
考题
单选题Compass error is equal to the（）.A
deviation minus variationB
variation plus compass courseC
combined variation and deviationD
difference between true and magnetic heading
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单选题Leeway is the（）.A
difference between the true course and the compass courseB
momentum of a vessel after her engines have been stoppedC
lateral movement of a vessel downwind of her intended courseD
displacement of a vessel multiplied by her speed
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