航海英語甲板與船體保養(yǎng)單項選擇題每日一練(2019.01.06)

來源：考試資料網(wǎng)

1 When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.

2 The margin plate is the（）.

3 The minimum length of a boat painter for a lifeboat in ocean service is（）.

4 An upright vessel has negative GM. GM becomes positive at the angle of loll because the（）.

5 Fueling activities（）waste liquids and vapor releases to air.