航海英語應(yīng)急預(yù)案與EMS單項(xiàng)選擇題每日一練(2019.01.25)

來源：考試資料網(wǎng)

1 Which characteristic is an advantage of Halon as a fire extinguishing medium?（）

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2 Which is a disadvantage of Halon as a fire extinguishing medium?（）

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3 Flooding of any compartment in a ship that results in a serious loss of reserve buoyancy will always（）.

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4 Which portable fire extinguisher should be used on a class C fire on board a vessel?（）

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5 When using a high-velocity fog stream in a passageway，the possibility of a blow back must be guarded against. Blow back is most likely to occur when（）.

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