航海英語救生用語單項(xiàng)選擇題每日一練(2019.01.22)

來源：考試資料網(wǎng)

1 When using the lifeboat compass，you must be careful to（）.

2 Each life jacket light that has a non-replaceable power source must be replaced（）.

3 When launching an open lifeboat by falls，the boathooks should be（）.

4 Life jackets should be marked with the（）.

5 If a mooring line should part while you are tying up at a dock，you should make a temporary eye by tying a（）.