航海英語磁羅經(jīng)與陀螺羅經(jīng)的使用單項(xiàng)選擇題每日一練(2019.01.08)

來源：考試資料網(wǎng)

1 What is the name of the movable，radial guide line used to measure direction on a radar?（）

2 While in drydock your vessel will be belt-gauged.This process involves（）.

3 The magnetic compass operates on the principle that（）.

4 The lubber’s line of a magnetic compass（）.

5 Indications of the master gyrocompass are sent to remote repeaters by the（）.