吊缸检修的基本过程包括（）。

【名词&注释】

导热性(thermal conductivity)、转子动平衡(rotor balancing)、增压器转子(blower rotor)

[单选题]吊缸检修的基本过程包括（）。

A. 拆卸与清洗
B. 检测与修理
C. 安装与调试
D. 以上均是

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学习资料：

[单选题]废气锅炉出口排烟温度t2不应低于露点，为了最大限度利用排气余热，在标定工况下，t2=露点+△t（℃），式中△t不应小于（）℃.

A. 25
B. 30
C. 40
D. 50

[单选题]柴油机在运行中一旦发生连杆螺栓断裂则可能导致（）损坏。Ⅰ.活塞、连杆；Ⅱ.缸套；Ⅲ.机架；Ⅳ.曲轴。

A. Ⅰ＋Ⅲ＋Ⅳ
B. Ⅰ＋Ⅱ＋Ⅲ＋Ⅳ
C. Ⅰ＋Ⅱ＋Ⅳ
D. Ⅱ＋Ⅲ

[单选题]增压器转子动平衡检验后，要求达到（）。

A. e≤[e]
B. e≥[e]?
C. FR≤[FR]
D. FR≥[FR]

[单选题]赛龙艉轴承材料具有弹性好、（）和不会剥落的特点，但导热性差和不耐高温。

A. 强度高、硬度高
B. 强度高、韧性好
C. 硬度高、耐磨
D. 耐磨、耐蚀

[单选题]Pistons of marine medium speed diesel engines may be made of （） in order to keep the weight down for balancing purpose at high speed.

A. lead
B. forged steel
C. alloy steel
D. aluminum alloy

[单选题]As to the bearing, of the following, which statement is not true?（）

A. ff overheat is found, the engine must be stopped for inspection
B. Much heat of the crankcase door indicates that the bearing is overheated
C. If bearing clearance is too large, knocking will be heard in the crankcase
D. If bearing clearance is too large or too small, the white metal may be melted

[单选题]The main purpose of the piston oil scraper rings is to （）.

A. seal the space between the piston and the liner
B. reduce the amount of lube oil burned in the combustion chamber
C. transmit heat from the piston to the cylinder liner
D. damp out fluctuations of the piston side thrust

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