Magnetic compass deviation（）.

Avaries depending upon the bearing used
Bis the angular difference between magnetic north and compass north
Cis published on the compass rose on most nautical charts
Dis the angular difference between geographic and magnetic meridia

参考答案

参考解析：

分类：GPS、DF及LC的使用题库

The magnetic compass magnets are acted on by the horizontal component of the Earth’s total magnetic force. This magnetic force is GREATEST at the（）.Anorth magnetic poleBsouth magnetic poleCmagnetic prime vertical meridianDmagnetic equator

2、The error in a magnetic compass caused

The error in a magnetic compass caused by the vessel’s magnetism is called（）.AvariationBdeviationCcompass errorDbearing error

3、Before a magnetic compass is adjusted

Before a magnetic compass is adjusted certain correctors must be checked to ensure that they are free of permanent magnetism. These correctors ...

4、The magnetic compass operates on the p

The magnetic compass operates on the principle that（）.Alike magnetic poles attractBunlike magnetic poles repelCunlike poles attractDthe poles of the compass line up with the geographic poles of the earth

5、What are the only magnetic compass cor

What are the only magnetic compass correctors that correct for both permanent and induced effects of magnetism?（）AQuadrantal spheresBHeeling magnetsCAthwartships magnetsDFore-and-aft magnet

6、The compass error of a magnetic compas

The compass error of a magnetic compass that has no deviation is（）.AzeroBequal to variationCeliminated by adjusting the compassDconstant at any geographical locatio

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