A.deviation
B.variation
C.compass error
D.northerly error
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A.the compass heading is in line with the lubber's line
B.there is no lost motion in the gimbal rings
C.no change of heading by compass is observed if you raise and lower the heeling magnet
D.the gimbal rings do not strike the compass frame when they are tilted
A.The Flinders bar
B.The heeling magnet
C.Quadrantal soft iron spheres
D.Bar magnets in the binnacle
A.elevation
B.magnetic angle
C.vertical angle
D.dip
A.divisional parts
B.coefficients
C.fractional parts
D.equations
A.compass error
B.latitude
C.variation
D.deviation
最新試題
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
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（）.
Which statement about the gyrocompass is FALSE（）.
What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
What is an advantage of the magnetic compass aboard vessels?（）
What is the name of the movable，radial guide line used to measure direction on a radar?（）
A ship under construction or major repair will acquire permanent magnetism due to（）while sitting stationary in the earth’s magnetic field.