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
The quadrantal spheres are used to（）.
Which compensates for errors introduced when the vessel heels over（）.
When adjusting a magnetic compass for error，a deviation table should be made（）.
What is the name of the movable，radial guide line used to measure direction on a radar?（）
When changing from a compass course to a true course you should apply（）.
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
Variation is a compass error that you（）.
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（）.
What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude（）.
What is the basic principle of the magnetic compass（）.