A、A.changes in the earth's magnetic field
B、B.nearby magnetic land masses or mineral deposits
C、C.magnetic influence inherent to that particular vessel
D、D.the magnetic lines of force not coinciding with the lines of longitude
更多“Deviation is caused by（）.”相关的问题
A、It compensates for the error caused by the vertical component of the Earth's magnetic field B、It compensates for error caused by the heeling of a vessel C、It compensates for quadrantal deviation D、It is only needed in equatorial waters
A、magnetism from the earth's magnetic field B、misalignment of the compass C、magnetism within the vessel D、a dirty compass housing
A、A.magnetism from the earth's magnetic field B、B.misalignment of the compass C、C.magnetism within the vessel D、D.a dirty compass housing
A、vessel's geographic position B、vessel's heading C、earth's magnetic field D、influence of the magnetic materials of the vessel
A、A.vessel's geographic position B、B.vessel's heading C、C.earth's magnetic field D、D.influence of the magnetic materials of the vessel
A、the deviation has been offset by the variation B、there is something wrong with the compass C、the compass is being influenced by nearby metals D、there is no deviation on that heading
A、the deviation has been offset by the variation B、there is something wrong with the compass C、the compass is being influenced by nearby metals D、there is no deviation on that heading
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