船舶动力装置的主要耗能设备是（）。Ⅰ.螺旋桨；Ⅱ.主机、发电机和

【名词&注释】

可靠性(reliability)、螺旋桨(propeller)、总费用(total cost)、船舶动力装置(marine power plant)

[单选题]船舶动力装置^{(marine power plant)}的主要耗能设备是（）。Ⅰ.螺旋桨；Ⅱ.主机、发电机和辅助锅炉；Ⅲ.空气压缩机

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ+Ⅱ
D. Ⅰ+Ⅲ

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学习资料：

[单选题]船舶在营运中，动力装置的维护费占船舶总费用的比例很大，最大可超过（）%.

A. 30
B. 40
C. 50
D. 60

[单选题]对于可靠性和可靠度的表述，不能采用的是（）。

A. 可靠性与可靠度各自有不同的定义
B. 可靠性的定量定义称为可靠度
C. 在可靠性技术中需要定量化，经常不把两者严格区分开来
D. 可靠性与可靠度都有严格的定义，任何时候都不可混同起来

[单选题]中间轴承的布置如果数量多、间距小（）。Ⅰ.则轴线变形的牵制作用增强；Ⅱ.会使轴承增加附加负荷

A. 仅Ⅰ对
B. 仅Ⅱ对
C. Ⅰ+Ⅱ
D. Ⅰ或Ⅱ

[单选题]The development of （） has kept pace with the increasing demands made by the steady rise in power produced by modem marine diesels.

A. water
B. fresh air
C. oils
D. gase

[单选题]To avoid scavenge fires （） the engine timing and equipment maintenance should be correctly carried out.

A. occurred
B. occurring
C. not happening
D. occur

[单选题]Which of the following conditions can cause above normal air temperature to develop in the intake manifold of a four-stroke/cycle turbo-charged diesel engine?（）

A. Clogged air intake falters
B. Piston blow-by
C. A defective after-cooler
D. Faulty exhaust valve

[单选题]If a four-stroke/cycle diesel engine is running at 1550 RPM, the speed of the camshaft will be（）.

A. 525 RPM
B. 775 RPM
C. 1550 RPM
D. 1800 RPM

[单选题]In a bypass type lubrication system for a diesel engine, the dirty oil line to the centrifuge should be taken from the （）.

A. lube oil pump suction line
B. lube oil pump discharge line
C. bottom of the lube oil sump
D. outlet from the lube oil header

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