Low compression results from （）.

【名词&注释】

可靠性(reliability)、柴油机(diesel engine)

[单选题]Low compression results from （）.

A. a worn cylinder
B. broken piston rings
C. either A or B
D. none of the above

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学习资料：

[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]柴油机某缸连杆已装的状态下，盘车一周可测得曲轴（）个臂距值。

A. 3
B. 4
C. 5
D. 6

[单选题]Each cylinder has one starting valve which is usually opened by air pressure and closed by （）

A. nuts and bolts
B. new joints
C. spring force
D. sealing ring

[单选题]In the （） pressure charging system the pulse of energy that occur as the exhaust is released from the cylinder to improve the output of the turbocharger.

A. constant
B. pulse
C. high
D. none of the above

[单选题]Rotating flyweights acting against spring pressure make a simple type of （）.

A. governor
B. safety valve
C. reducing valve
D. feed water regulator

[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 main bearing shells often have a thin （） of lead or indium to provide a layer giving protection against corrosion.

A. flange
B. flash
C. plate
D. sheet

[单选题]Lube oil filters remove contaminants more efficiently if the oil being filtered is （）.

A. under high pressure
B. under low pressure
C. heated to reduce viscosity
D. cooled to increase viscosity

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