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航海英语消防演习与作业单项选择题每日一练(2018.11.17)

  • 单项选择题

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

    A.utilizing carbon dioxide or dry chemical fire extinguishers
    B.utilizing soda and acid fire extinguishers
    C.blowing the flames out
    D.letting it burn itself out

  • 单项选择题

    After using a CO2 extinguisher on a ship,it should be().

    A.put back in service if some CO2 remains
    B.hydrostatically tested
    C.retagged
    D.recharged

  • 单项选择题

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

    A.closing the compartment except for the ventilators
    B.completely closing the compartment
    C.leaving the compartment open to the air
    D.increasing the air flow to the compartment by blowers

  • 单项选择题

    Halon from extinguishers used on a class B fire,should be directed().

    A.at the top of the flames
    B.at the base of the fire near the edge
    C.in short quick bursts
    D.toward the upwind side of the fire

  • 单项选择题

    An inflatable liferaft should be lifted back aboard the ship by using().

    A.the single hook at the top of the raft
    B.two lines passed under the raft
    C.the towing bridle
    D.All of the above

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