單項選擇題

To center a compass bowl in its binnacle，you should have the ship on an even keel，heading north or south，and adjust the screws until（）.

A.the compass heading is in line with the lubber's line
B.there is no lost motion in the gimbal rings
C.no change of heading by compass is observed if you raise and lower the heeling magnet
D.the gimbal rings do not strike the compass frame when they are tilted

你可能感興趣的試題

單項選擇題

The vertical component of the Earth’s magnetic field causes induced magnetism in vertical soft iron. This changes with latitude. What corrects for this coefficient of the deviation? （）

A.The Flinders bar
B.The heeling magnet
C.Quadrantal soft iron spheres
D.Bar magnets in the binnacle

單項選擇題

The vertical angle between the horizontal and the magnetic line of force is the（）.

A.elevation
B.magnetic angle
C.vertical angle
D.dip

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区 狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

To center a compass bowl in its binnacle，you should have the ship on an even keel，heading north or south，and adjust the screws until（）.

你可能感興趣的試題

The vertical component of the Earth’s magnetic field causes induced magnetism in vertical soft iron. This changes with latitude. What corrects for this coefficient of the deviation? （）

The vertical angle between the horizontal and the magnetic line of force is the（）.

97免费在线观看视频,亚洲综合自拍网,黄色毛片免费观看,热久久综合网,免费看日产一区二区三区狠狠操av,久久久涩涩涩,在线精品免费视频,人人插天天干,久久91精品国产91久久

To center a compass bowl in its binnacle，you should have the ship on an even keel，heading north or south，and adjust the screws until（）.