<thead id="avcxh"><abbr id="avcxh"><legend id="avcxh"></legend></abbr></thead>

<nobr id="avcxh"><td id="avcxh"></td></nobr><nobr id="avcxh"></nobr>

<progress id="avcxh"><abbr id="avcxh"><wbr id="avcxh"></wbr></abbr></progress><nobr id="avcxh"><td id="avcxh"></td></nobr>

<progress id="avcxh"><abbr id="avcxh"></abbr></progress>

單項(xiàng)選擇題

Compass deviation is caused by（）.

A.magnetism from the earth's magnetic field
B.misalignment of the compass
C.magnetism within the vessel
D.a dirty compass housing

你可能感興趣的試題

單項(xiàng)選擇題

Compass error is equal to the（）.

A.deviation minus variation
B.variation plus compass course
C.combined variation and deviation
D.difference between true and magnetic heading

單項(xiàng)選擇題

Deviation in a compass is caused by the（）.

A.vessel's geographic position
B.vessel's heading
C.earth's magnetic field
D.influence of the magnetic materials of the vessel

<rp id="arohx"><td id="arohx"><tr id="arohx"></tr></td></rp>