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單項(xiàng)選擇題

The temperature difference between the inlet and outlet temperature of the lube oil cooler in the lubricating system for the diesel engine is generally between （）.

A.8-10℃
B.10-12℃
C.10-15℃
D.10-20℃

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單項(xiàng)選擇題

The opening or closing of the cylinder starting valve is controlled by （）.

A.the starting air distributor
B.the cut-off valve on the air main
C.the main starting valve
D.the air bottle control valve

單項(xiàng)選擇題

Suppose the rated capacity of the main engine of a ship is 10,000 KW at 100 rated rpm, then when at 80 rpm its capacity should be （）.

A.800 KW
B.5120 KW
C.6400 KW
D.4180 KW

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