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單項(xiàng)選擇題

Two important considerations for the proper lubrication of a diesel engine include the delivery of the oil in sufficient amount and the （）.

A.cetane number
B.pour point
C.viscosity temperature
D.quality of the oil

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單項(xiàng)選擇題

In a naturally aspirated diesel engine, the volume of air intake is directly related to engine （）.

A.compression ratio
B.valve size
C.fuel pressure
D.cylinder clearance volume

單項(xiàng)選擇題

To check the setting of the overspeed trip on a diesel powered generator, you would use a （）.

A.tachometer
B.torsion meter
C.dynamometer
D.pony brake

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