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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

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

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

A.remove deviation on the intercardinal headings
B.remove deviation on the cardinal compass headings
C.remove heeling error
D.compensate for induced magnetism in vertical soft iron