航海英語消防演習與作業(yè)單項選擇題每日一練(2019.01.10)

來源：考試資料網(wǎng)

1 How does foam extinguish an oil fire?（）.

2 Foam-type portable fire extinguishers are most useful in combating fires involving（）.

3 Fixed CO₂ systems would not be used on crew’s quarters or（）.

4 A fire in a ballast pumproom can be brought under control with minimal impact on stability by（）.

5 Fire hose should be washed with（）.