【名词&注释】
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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