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航海英语海上消防单项选择题每日一练(2018.11.07)

  • 单项选择题

    A cutoff valve in the fire-main system of a ship may be closed to protect the portion of the system on an exposed deck from().

    A.damage from crane operations
    B.being used for wash down purposes
    C.accidental diversion of flow to wrong location
    D.freezing

  • 单项选择题

    A class B fire is most successfully fought by().

    A.preventing oxygen from reaching the burning material
    B.cooling the burning material below its ignition temperature
    C.using the extinguishing agent to make the burning material fire-resistant
    D.using the extinguishing agent to absorb the heat

  • 单项选择题

    Each fire pump on a ship must have a pressure gauge located at().

    A.the pump discharge
    B.the manifold connection
    C.each fire station discharge
    D.the pump station

  • 单项选择题

    Generally,the first action in extinguishing an LFG fire caused by escaping gas is to().

    A.sweep flames away with water spray
    B.shut off the leak
    C.use a chemical foam fire extinguisher
    D.call the local fire department

  • 单项选择题

    A fire in a ballast pumproom can be brought under control with minimal impact on stability by().

    A.cooling the outside bulkheads with water
    B.shutting all sources of air into the compartment
    C.closing the sea chest
    D.flooding the compartment with salt water

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