正确答案: B

客船和军舰

题目：一般（）为双舵双桨。

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学习资料的答案和解析：

[单选题]可靠性定义中所述及的“规定的条件”，包括（）。Ⅰ.环境温度、压力、湿度；Ⅱ.振动；Ⅲ.承受的负荷

Ⅰ+Ⅱ+Ⅲ

[单选题]在检修连杆大端轴承时，必须换新的是（）。

防松垫片或开口销

[单选题]水润滑艉轴铜套过度磨损后光车修理时，铜套厚度应（）。

≥0.02d＋5mm

[单选题]“Stand by an engine” means （）

“make an engine ready for starting”

[单选题]（） are mounted on and bolted to the bed-plate cross girders.

The frame

[单选题]A distance piece, known as a （） may be interposed between the rod and the bearing housing.

compression plate

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

spring force

[单选题]The piston moving up and down keeps the crankshaft （）.

revolving

[单选题]To successfully reduce an excessively high diesel engine exhaust gas temperature, you should （）.

reduce the load on the engine