A.deviation
B.variation
C.compass error
D.northerly error
您可能感興趣的試卷
你可能感興趣的試題
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
What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）
The most accurate method of determining gyrocompass error while underway is by（）.
Any piece of metal on becoming magnetized will develop regions of concentrated magnetism called（）.
What is the basic principle of the magnetic compass?（）
When relieving the helm，the new helmsman should know the（）.
What is used to correct for both induced and permanent magnetism，and consequently must be readjusted with radical changes in latitude（）.
Which compensates for errors introduced when the vessel heels over（）.
The Flinders bar on a magnetic compass compensates for the（）.
When a magnetic compass is not in use for a prolonged period of time it should（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.