Scavenging in a four-stroke/cycle diesel engine occurs during the （）.

时间：2020-08-14 02:18:32 关键词：stroke,cycle,four

Scavenging in a four-stroke/cycle diesel engine occurs during the （）.

A.last part of the exhaust stroke, and the first part of the intake stroke

B.last part of the intake stroke only

C.early part of the injection stroke only

D.early part of the power stroke

答案解析

A

举一反三

Before a marine diesel engine is started the cylinders and pistons must be （）.

The power generated in the turbine must （） that required by the compressor.

In diesel engines the four basic events (intake compression power and exhaust) are performed once in （）.

The crankcase of many diesel engines are kept under a slight vacuum by the （）.

Scavenging in a four-stroke/cycle diesel engine occurs during the （）.

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