正确答案: B

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题目：The bearing shell generally has （） for location and oil grooves round the center of its axial length.

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学习资料的答案和解析：

[单选题]防止增压器涡轮端壳体腐蚀的方法是（）。

提高冷却水进口温度

[单选题]如果两根中间轴连接法兰的位置处于两轴承间距的中间，则轴系会出现（）。Ⅰ.轴系挠度过大；Ⅱ.轴系难以准确对中；Ⅲ.安装不方便

Ⅰ+Ⅱ+Ⅲ

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

heat

[单选题]Generally the gudgeon pin is fully floating in both connecting rod small end and （）.

the piston bosse

[单选题]If the engine does not start on air, it may be due to （）

the starting air valves stuck

[单选题]The crankshaft of diesel engine is supported by （）.

main bearing

[单选题]The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the （） systems.

fuel injection

[单选题]Temperature control valves installed in the jacket cooling water system of a diesel engine modulates the rate of water flow through the （）.

heat exchanger