A.deviation
B.variation
C.compass error
D.dip
您可能感興趣的試卷
你可能感興趣的試題
A.damping error
B.ballistic deflection
C.quadrantal error
D.speed error
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
最新試題
A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°.Which action should be taken to remove this error during compass adjustment（）.
When changing from a compass course to a true course you should apply（）.
A ship under construction or major repair will acquire permanent magnetism due to（）while sitting stationary in the earth’s magnetic field.
Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.
When a magnetic compass is not in use for a prolonged period of time it should（）.
Which statement about the gyrocompass is FALSE（）.
The variation for most given areas undergoes（）change，the amount of which is also noted on charts.
In more recent years，（）has been used by civilians in many new ways to determine positions，such as in automobile and boat navigation，hiking，emergency rescue，and precision agriculture and mining.
Which compensates for errors introduced when the vessel heels over（）.
Variation is a compass error that you（）.