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航海英语海上消防单项选择题每日一练(2018.11.01)

  • 单项选择题

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

    A.solid materials such as wood or bales of fiber
    B.inflammable liquids
    C.electrical equipment
    D.metallic solids

  • 单项选择题

    Foam extinguishes a fire by().

    A.smothering the burning material
    B.chemical combination with burning material
    C.absorbing the burning material
    D.organic destruction of the burning material

  • 单项选择题

    Automatic mechanical ventilation shutdown is required for CO2 systems protecting the().

    A.machinery spaces
    B.cargo compartments
    C.living quarters
    D.galley

  • 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

    A portable foam (stored-pressure type) fire extinguisher would be most useful in combating a fire in().

    A.generators
    B.oil drums
    C.the bridge controls
    D.combustible metals

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