A.compass error
B.true heading
C.variation
D.deviation
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A.geographic pole and the magnetic pole
B.lubber's line and true north
C.horizontal and the magnetic line of force
D.compass heading and the magnetic heading
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
A.into the wind
B.away in fire and smoke
C.directly to the standby boat
D.directly to the nearest land
A.follow-up system
B.transmitter
C.phantom element
D.azimuth motor
A.east
B.west
C.north
D.south
最新試題
The variation for most given areas undergoes（）change，the amount of which is also noted on charts.
When a magnetic compass is not in use for a prolonged period of time it should（）.
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（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
By convention，the north seeking ends of a compass’ magnets are colored（）.
What is the basic principle of the magnetic compass（）.
The line which connects the points of zero magnetic dip is（）.
What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）
What is the name of the movable，radial guide line used to measure direction on a radar?（）