單項選擇題

Magnets are placed in horizontal trays in the compass binnacle to compensate for the（）.

A.induced magnetism in the vessel's horizontal soft iron
B.change in the magnetic field when the vessel inclines from vertical
C.permanent magnetism of the vessel
D.magnetic fields caused by electrical currents in the vicinity

你可能感興趣的試題

單項選擇題

Magnetic variation changes with a change in（）.

A.the vessel's heading
B.sea conditions
C.seasons
D.the vessel's position

單項選擇題

Magnetic heading differs from compass heading by（）.

A.compass error
B.true heading
C.variation
D.deviation

99色精品-9色在线-99色在线-99色视频 国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精

Magnets are placed in horizontal trays in the compass binnacle to compensate for the（）.

你可能感興趣的試題

Magnetic variation changes with a change in（）.

Magnetic heading differs from compass heading by（）.

99色精品-9色在线-99色在线-99色视频国产欧美日产一区二区三区_亚洲精品亚洲人成在线观看_四虎在线精品永久观看_免费一级a一片久久精