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單項(xiàng)選擇題

The operating speed of a turbocharger is directly dependent upon（）

A.engine speed
B.engine load
C.intake manifold pressure
D.atmospheric pressure

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單項(xiàng)選擇題

A four-stroke/cycle, 1000horsepower diesel engine fails to start at normal cranking speed with normal fuel pressure and ambient temperatureThe reason for the failure could be（）

A.glazed liners or pistons
B.high lube oil pressure
C.excessive compression ratio
D.worn valve seats and valves

單項(xiàng)選擇題

In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the （）

A.governor droop
B.speeder spring tension
C.fuel rack lag
D.load on the engine