单项选择题

What monitoring device best indicates the load being carried by a diesel engine?（）

A.Lube oil pressure gauge
B.Jacket water temperature gauge
C.Tachometer
D.Exhaust pyrometer

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单项选择题

What is the purpose of the intake/exhaust valves in a diesel engine? （）

A.They regulate the combustion cycle
B.They supply cooling water
C.They synchronize the ignition spark
D.They supply and regulate the lubricant flow

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What is the operating principal of a flash type evaporator?（）

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B.Sea water is passed over heated plates in a thin film
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What is the effect of heated intake air on a diesel engine? （）

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B.Increases engine horsepower
C.Increases engine life
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