單項選擇題

Which statement about the Flinders bar of the magnetic compass is CORRECT（）.

A.It compensates for the error caused by the vertical component of the Earth's magnetic field
B.It compensates for error caused by the heeling of a vessel
C.It compensates for quadrantal deviation
D.It is only needed in equatorial waters

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單項選擇題

Which magnetic compass corrector（s）CANNOT be set on a heading of magnetic east or magnetic west（）.

A.Heeling magnet
B.Flinders bar
C.Fore-and-aft magnets
D.All of the above can be set on magnetic east or magnetic west headings

單項選擇題

Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.

A.Quadrantal spheres
B.Heeling magnets
C.Flinders bar
D.Fore-and-aft magnets

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Which statement about the Flinders bar of the magnetic compass is CORRECT（）.

你可能感興趣的試題

Which magnetic compass corrector（s）CANNOT be set on a heading of magnetic east or magnetic west（）.

Which magnetic compass corrector（s）can be set while the vessel is on a heading of magnetic north or magnetic south（）.