航海英語救生設(shè)備單項(xiàng)選擇題每日一練(2019.01.17)

來源：考試資料網(wǎng)

1 When launching a lifeboat in the rough sea，the davit gears should be released（）.

2 In order for the automatic lifeboat drain to operate properly（）.

3 How many life buoys（）on board with self-igniting light?

4 The boat command that means complete the stroke and level the oars horizontally with the blades trimmed fore and aft is（）.

5 Never（）the lifeboat or lifecraft disengaging locks or hydrostatic release gears because it can cause them to fail to function.