正确答案: B
a brief trial on power
题目:Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine () ahead and astern.
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学习资料的答案和解析:
[单选题]动力系统包括下列管路系统()。
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()。
船舶系统
[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()。
长时间锁住转子将引起变形
[单选题]相邻轴同轴,其连接法兰处偏中值为()。
A.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()。
测量精度低
[单选题]Fuel oil is pumped by means of () from the bunker tanks.
a transfer pump
[单选题]If the needle valve in a fuel injection nozzle sticks open ().
time of injection will change
[单选题]The amount of lubricating oil in the drain tank should be checked by ().
sounding rod
[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.
shaped