A.like magnetic poles attract
B.unlike magnetic poles repel
C.unlike poles attract
D.the poles of the compass line up with the geographic poles of the earth
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A.north magnetic pole
B.south magnetic pole
C.magnetic prime vertical meridian
D.magnetic equator
A.compass north
B.the direction of the vessel's head
C.magnetic north
D.a relative bearing taken with an azimuth circle
A.always shows true north direction
B.indicates the vessel's heading
C.is always parallel to the vessel's transom
D.is located on the compass card
A.deviation
B.variation
C.compass error
D.dip
A.damping error
B.ballistic deflection
C.quadrantal error
D.speed error
最新試題
Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.
When crossing the magnetic equator the（）.
Variation is the angular measurement between（）.
The line which connects the points of zero magnetic dip is（）.
Variation is a compass error that you（）.
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
What is the basic principle of the magnetic compass?（）
When relieving the helm，the new helmsman should know the（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
When changing from a compass course to a true course you should apply（）.