A.damping error
B.ballistic deflection
C.quadrantal error
D.speed error
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A.needles are nearly in line with the meridian
B.vessel is near the magnetic poles
C.variation is near zero
D.vessel is near the magnetic equator
A.induced magnetism in vertical soft iron
B.induced magnetism in horizontal soft iron
C.permanent magnetism in ship's steel
D.vessel's inclination from the vertical
A.variation
B.deviation
C.compass error
D.bearing error
A.increases with latitude，being maximum at the geographic poles
B.decreases with latitude，being maximum at the geographic equator
C.is greatest when a vessel is near the Earth's magnetic equator
D.remains the same at all latitudes
A.variation
B.deviation
C.compass error
D.drift
最新試題
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
When relieving the helm，the new helmsman should know the（）.
The variation for most given areas undergoes（）change，the amount of which is also noted on charts.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
While in drydock your vessel will be belt-gauged.This process involves（）.
What is an advantage of the magnetic compass aboard vessels?（）
When changing from a compass course to a true course you should apply（）.
The most accurate method of determining gyrocompass error while underway is by（）.
When adjusting a magnetic compass for error，a deviation table should be made（）.
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）