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轮机英语单项选择题每日一练(2019.08.11)

  • 单项选择题

    The tube in a boiler should be blinded if found ().

    A.scaled
    B.informed
    C.leaky
    D.deformed

  • 单项选择题

    The amount of fuel injection into a diesel engine cylinder by a unit injector, is controlled by()

    A.the firing pressure in the cylinder
    B.a metering helix inside the pump
    C.varying the physical length of the plunger stroke
    D.varying the clearance between the injector cam and the injector rocker arm

  • 单项选择题

    Defective air cooler in a diesel engine will lead to ().

    A.smoky exhaust
    B.starting failure
    C.overload
    D.over speed

  • 单项选择题

    Distilled water from an evaporator may be discharged into a potable water tank ().

    A.through a detachable hose connection
    B.after passing through an activated charcoal filter
    C.after chemical analysis shows it is fit for consumption
    D.through a solenoid operated three-way valve

  • 单项选择题

    Tools with ()handles should be used to check electric circuit.

    A.plastic
    B.metal
    C.stainless steel
    D.copper

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