正确答案: C

偏中值

题目：由于轴系的实际变形难以检测，通过测量轴系的相邻轴两法兰的（）来了解轴系轴心线的实际状态。

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学习资料的答案和解析：

[单选题]在检查和调整主机回油阀调节式喷油泵的供油量均匀性时，应将主机的燃油手柄置于（）位置。

标定供油位置

[单选题]赛龙艉轴承材料的性能优于铁梨木、尼龙和层压胶木，使用寿命约为其他艉轴承材料的（）倍。

4

[单选题]Charging-air pressure increases if there is incorrect combustion and drop in the （） of the diesel engine.

mechanical efficiency

[单选题]In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to （） and heated.

a settling tank

[单选题]It is very necessary that each cylinder （） before the charged air is compressed.

be scavenged

[单选题]The hydraulic （） is used to control engine speed.

governor

[单选题]The injector pump is operated by a cam which drives （） up and down.

the plunger

[单选题]The main moving parts of a diesel engine consist of the （） and the pistons.

crankshaft, the connecting rods