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
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）CANNOT be set on a heading of magnetic east or magnetic west（）.
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
When a magnetic compass is not in use for a prolonged period of time it should（）.
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.
This induced magnetism（）the permanent magnetism already present in the ship.
When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
The magnetism in the various structures of a ship changing as a result of cruising，vibration，or aging is termed（）.
The Flinders bar on a magnetic compass compensates for the（）.