单项选择题

As a vessel changes course to starboard，the compass card in a magnetic compass（）.

A.remains aligned with compass north
B.also turns to starboard
C.first turns to starboard then counterclockwise to port
D.turns counterclockwise to port

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单项选择题

You have calibrated your RDF. When compiling the calibration table，the correction to be applied to any future RDF bearings is listed against the（）.

A.true bearing of the transmitter
B.relative bearing of the transmitter
C.heading of the vessel
D.time of reception

单项选择题

Magnetic compass deviation（）.

A.varies depending upon the bearing used
B.is the angular difference between magnetic north and compass north
C.is published on the compass rose on most nautical charts
D.is the angular difference between geographic and magnetic meridians