航海英語應(yīng)急部署單項選擇題每日一練(2019.01.07)

來源：考試資料網(wǎng)

1 The preferred agent used in fighting a helicopter crash fire is（）.

2 Small oil spills on deck can be kept from going overboard by（）.

3 To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.

4 What is the most vulnerable part of the fire main system on board an offshore rig?（）

5 The outlet at a fire hydrant may be positioned anywhere from horizontal to pointing（）.