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航海英语海上消防单项选择题每日一练(2018.12.04)

  • 单项选择题

    Halon extinguishes fire primarily by().

    A.cooling
    B.smothering
    C.shielding of radiant heat
    D.breaking the chain reaction

  • 单项选择题

    Each fire hydrant must have at least one spanner and at least one().

    A.hose rack or reel
    B.all purpose nozzle
    C.foam applicator
    D.pick axe

  • 单项选择题

    Fusible-link fire dampers are operated by().

    A.8the heat of a fire melting the link
    B.a break-glass and pull-cable system
    C.electrical controls on the bridge
    D.a mechanical arm outside the vent duct

  • 单项选择题

    During the required periodic abandon ship drill aboard a ship,each person not assigned duties in the muster list is().

    A.instructed in the use of portable fire extinguishers
    B.shown a video demonstrating lifeboat launching
    C.instructed in the use of life jackets
    D.not required to attend the boat drill

  • 单项选择题

    Fire extinguishers on inspected vessels are numbered by size I through V,with I being().

    A.used for electrical fires only
    B.the smallest
    C.the most accessible
    D.the most effective

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