A、A.like magnetic poles attract
B、B.unlike magnetic poles repel
C、C.unlike poles attract
D、D.the poles of the compass line up with the geographic poles of the earth
更多“The magnetic compass operates on the principle that（）.”相关的问题
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、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、A.worn gears in the compass housing B、B.magnetism from the earth's magnetic field C、C.magnetism within the vessel D、D.lack of oil in the compass bearings
A、varies depending upon the bearing used B、is the angular difference between magnetic north and compass north C、is published on the compass rose on most nautical charts D、is the angular difference between geographic and magnetic meridians
A、varies depending upon the bearing used B、is the angular difference between magnetic north and compass north C、is published on the compass rose on most nautical charts D、is the angular difference between geographic and magnetic meridians
A、Move the quadrantal spheres closer to the compass B、Raise the heeling magnet if the red end is up C、Remove some of the Flinders bar D、Raise or lower the athwartship magnets
A、true meridian and the axis of the compass card B、true meridian and the magnetic meridian C、magnetic meridian and the axis of the compass card D、axis of the compass card and the degaussing meridian
A、A.true meridian and the axis of the compass card B、B.true meridian and the magnetic meridian C、C.magnetic meridian and the axis of the compass card D、D.axis of the compass card and the degaussing meridian
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