柴油机冷态即环境温度下测量曲轴臂距差具有测量值（）。Ⅰ.准确；

【名词&注释】

环境温度(ambient temperature)、润滑性(lubricity)、广泛应用、离心力(centrifugal force)、力偶矩(moment of couple)、转子动平衡(rotor balancing)、有效地(effectively)、动平衡试验(dynamic balance test)、增压器转子(blower rotor)

[单选题]柴油机冷态即环境温度下测量曲轴臂距差具有测量值（）。Ⅰ.准确；Ⅱ.符合规范；Ⅲ.稳定；Ⅳ.便于操作；Ⅴ.不受温度影响。

A. Ⅰ＋Ⅲ＋Ⅳ
B. Ⅰ＋Ⅳ
C. Ⅱ＋Ⅳ
D. Ⅰ＋Ⅳ＋Ⅴ

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学习资料：

[单选题]主机底脚螺栓松动则可能导致（）。Ⅰ.垫块磨损；Ⅱ.机座局部下沉；Ⅲ.曲轴变形；Ⅳ.主机振动。

A. Ⅱ＋Ⅳ
B. Ⅰ＋Ⅲ
C. Ⅱ＋Ⅲ＋Ⅳ
D. Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ

[单选题]增压器转子^{(blower rotor)}动平衡试验^{(dynamic balance test)}合格之后（）。

A. 两平面内的离心力的向量和近似为零
B. 离心力引起的力偶矩的向量和近似为零
C. 偏心矩近似为零
D. 以上均是

[单选题]油润滑艉轴承的优点是（）和（），在有效地^{(effectively)}解决艉轴承密封后被广泛应用。

A. 耐磨/价格低
B. 油膜承载大/油润滑性好
C. 耐磨/油润滑性好
D. 油膜承载大/耐磨

[单选题]A charge of fresh air is drawn into the engine cylinder and then （） by the moving piston（） very high pressure.

A. pressed；to
B. pressurized；with
C. pushed；in
D. compressed；to

[单选题]As a heat engine,（） energy is the source of power by which the diesel engine can be operated.

A. electric
B. heat
C. mechanical
D. exhaust

[单选题]In each cylinder cover there are two or three holes for （）

A. the exhaust valves
B. the fuel valves
C. indicator cocks
D. the fuel pum

[单选题]With （）, the corrosion problems are much reduced in a central cooling system.

A. no equipment in contact with sea water
B. less equipment in contact with fresh water
C. more equipment in contact with sea water
D. less equipment in contact with sea water

[单选题]Cylinder wall temperature, fuel oil supplier, and oil passage （）.

A. are interdependent
B. are not interdependent
C. have nothing to do with each other
D. are independent

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