航海英語消防演習(xí)與作業(yè)單項(xiàng)選擇題每日一練(2019.01.15)

來源：考試資料網(wǎng)

1 Fire extinguishing agents used on Class C fires must be（）.

2 Flames from small leaks of LFG may be extinguished by（）.

3 A safety outlet is provided on the CO₂ discharge piping to prevent（）.

4 Fire in an engine compartment is best extinguished with carbon dioxide gas (CO₂) and by（）.

5 A fifteen-pound CO₂ extinguisher（）.