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單項選擇題

What is the term given to the process of breaking up fuel oil into very fine particles for better combustion?（）

A.Settling
B.Straining
C.Spraying
D.Atomizing

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單項選擇題

In a diesel engine, an extremely leaking exhaust valve can cause （）.

A.misfiring
B.pre-ignition
C.interrupted scavenging
D.reduced scavenging

單項選擇題

Diesel engine exhaust temperatures may be used to indicate （）.

A.leaking exhaust valves
B.an overloaded cylinder
C.a clogged injector nozzle
D.all of the above