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航海英语船舶动力装置单项选择题每日一练(2019.01.08)

  • 单项选择题

    On a single-screw vessel the stern frame().

    A.furnishes support to the rudder,propeller shaft,and transom frame
    B.provides foundations for after mooring winches
    C.provides foundations for the main propulsion engines
    D.transfers the driving force of the propeller to the hull

  • 单项选择题

    A hydraulic accumulator aboard a ship is designed to().

    A.store fluid under pressure
    B.act as a fluid reservoir
    C.provide overpressure relief
    D.replenish fluid to a system

  • 单项选择题

    What is the purpose of the intake/exhaust valves in a diesel engine? ()

    A.They regulate the combustion cycle
    B.They supply cooling water
    C.They synchronize the ignition spark
    D.They supply and regulate the lubricant flow

  • 单项选择题

    A thrust block is designed to().

    A.absorb the shock of wave pressure at the bow
    B.be placed between the engines and the foundation to absorb the vibration
    C.transmit the thrust of the engine to the propeller
    D.transmit the thrust of the propeller to the vessel

  • 单项选择题

    Sudden unloading of a diesel engine can cause().

    A.decreased fuel efficiency
    B.increased exhaust temperature
    C.black smoke
    D.overspeed trip

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