单项选择题

Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?（）

A.Exhaust and scavenging
B.Scavenging and compression
C.Ignition and expansion
D.Exhaust and compression

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单项选择题

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

A.reduce the engine driven fuel pump outlet pressure
B.retard the fuel injector timing to reduce power
C.increase the fuel rack setting
D.reduce the load on the engine

单项选择题

A diesel engine with a combustion chamber located between the crowns of two pistons is known as a an （）.

A.double-acting engine
B.opposed pistons engine
C.single-acting engine
D.horizontal acting engine