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Before "stand-by" is rung on the engine telegraph, it is usu

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    水冷却系统(water cooling system)、压缩空气系统(compressed air system)、增压器(turbocharger)、长时间(long time)、工作条件(working condition)

  • [单选题]Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine () ahead and astern.

  • A. a brief trial with turning gear
    B. a brief trial on power
    C. a long trial by steering gear
    D. one minutes trial with windla

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  • 学习资料:
  • [单选题]动力系统包括下列管路系统()。
  • A. 燃油、滑油系统
    B. 海、淡水冷却系统
    C. 蒸汽、压缩空气系统
    D. A+B+C

  • [单选题]辅助系统是为船舶平衡、稳性、人员生活和安全服务的管路系统,也称为()。
  • A. 平衡系统
    B. 安全系统
    C. 船舶系统
    D. 压载系统

  • [单选题]增压器发生故障后锁住转子的措施简便,起到了缓解故障和防止故障扩大的作用,但缺点是()。
  • A. 破坏了与柴油机联合装置的工作
    B. 需要具备短时停航的工作条件(working condition)
    C. 长时间锁住转子将引起变形
    D. 废气继续通过使转子受到高温作用

  • [单选题]相邻轴同轴,其连接法兰处偏中值为()。
  • A. A.δ=0、φ=0
    B. B.δ≠0、φ≠0
    C. C.δ=0、φ≠0
    D. D.δ≠0、φ=0

  • [单选题]直尺-塞尺法应用较多,且方法方便、简单、灵活,但()。
  • A. 测量精度低
    B. 工具粗糙
    C. 对测量技术要求高
    D. 对法兰要求低

  • [单选题]Fuel oil is pumped by means of () from the bunker tanks.
  • A. a transfer pump
    B. a bilge pump
    C. a service pump
    D. a vacuum pum

  • [单选题]If the needle valve in a fuel injection nozzle sticks open ().
  • A. no fuel will be delivered through the nozzle
    B. the nozzle will overheat and crack
    C. time of injection will change
    D. fuel will leak into the drain line

  • [单选题]The amount of lubricating oil in the drain tank should be checked by ().
  • A. measuring
    B. sounding rod
    C. metering
    D. weighting

  • [单选题]The engine is reversed by axial displacement of the camshafts In order for this to be carried out, the cams are () with inclined transition faces.
  • A. lathed
    B. shaped
    C. shrunk
    D. developed

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