航海英語(yǔ)應(yīng)急預(yù)案與EMS單項(xiàng)選擇題每日一練(2019.01.17)

來(lái)源：考試資料網(wǎng)

1 Which extinguishing agent is most effective on a mattress fire?（）

2 A group of crew members standing by in case of an emergency in order to assist other teams in action if necessary is a（）.

3 When joining the female coupling of the fire hose to the male outlet of the hydrant，you should make sure that the（）.

4 When fighting a fire in an enclosed space，the hose team should crouch as low as possible to（）.

5 When loading or discharging dry mud or cement，crew members should use facial respirator masks and（）.