A.the vessel's heading
B.sea conditions
C.seasons
D.the vessel's position
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A.compass error
B.true heading
C.variation
D.deviation
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
最新試題
Which compensates for errors introduced when the vessel heels over（）.
By convention，the north seeking ends of a compass’ magnets are colored（）.
The line which connects the points of zero magnetic dip is（）.
When crossing the magnetic equator the（）.
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.
What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude（）.
When adjusting a magnetic compass for error，a deviation table should be made（）.
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（）.