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
您可能感興趣的試卷
你可能感興趣的試題
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
A.precession
B.earth rate
C.gyroscopic inertia
D.gravity effect
最新試題
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 are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）
The quadrantal spheres are used to（）.
The MOST important feature of the material used for making the binnacle of a standard magnetic compass is that it is（）.
The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval（）.
The most accurate method of determining gyrocompass error while underway is by（）.
A ship under construction or major repair will acquire permanent magnetism due to（）while sitting stationary in the earth’s magnetic field.
What is the basic principle of the magnetic compass（）.
When a vessel changes course from one cardinal heading to another cardinal heading whilea djusting the compass，which action should be taken?（）
Variation is the angular measurement between（）.