航海英語(yǔ)應(yīng)急部署單項(xiàng)選擇題每日一練(2019.01.09)

來(lái)源：考試資料網(wǎng)

1 What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）

2 The wooden plug inserted in the vent of a damaged tank of a ship should be removed in case it is decided to（）.

3 The type of extinguisher which should be used for an electricity fire is（）.

4 What is best suited for fighting a fire in a ballast control room?（）

5 You hear the general alarm and ship’s whistle sound for over 10 seconds. Traditionally，this is the signal for（）.