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
Which statement about the gyrocompass is FALSE（）.
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（）.
The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval（）.
This induced magnetism（）the permanent magnetism already present in the ship.
Which statement about the Flinders bar of the magnetic compass is CORRECT（）.
When changing from a compass course to a true course you should apply（）.
When adjusting a magnetic compass using the fore-and-aft permanent magnets，you should（）.
Any piece of metal on becoming magnetized will develop regions of concentrated magnetism called（）.
By convention，the north seeking ends of a compass’ magnets are colored（）.
When relieving the helm，the new helmsman should know the（）.