A.can correct by adjusting the compass card
B.can correct by adjusting the compensating magnets
C.can correct by changing the vessel's heading
D.cannot correct
您可能感興趣的試卷
你可能感興趣的試題
A.worn gears in the compass housing
B.magnetism from the earth's magnetic field
C.magnetism within the vessel
D.lack of oil in the compass bearings
A.deviation
B.variation
C.compass error
D.northerly error
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
最新試題
When changing from a compass course to a true course you should apply（）.
The Flinders bar and the quadrantal spheres should be tested for permanent magnetism at what interval（）.
What is the basic principle of the magnetic compass?（）
This induced magnetism（）the permanent magnetism already present in the ship.
Any piece of metal on becoming magnetized will develop regions of concentrated magnetism called（）.
The variation for most given areas undergoes（）change，the amount of which is also noted on charts.
What is the basic principle of the magnetic compass（）.
When a magnetic compass is not in use for a prolonged period of time it should（）.
What is the name of the movable，radial guide line used to measure direction on a radar?（）
The Flinders bar on a magnetic compass compensates for the（）.