A.compass north and magnetic north B.compass north and true north C.magnetic meridian and the geographic meridian D.your vessel's heading and the magnetic meridian
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