單項(xiàng)選擇題

A dirty diesel engine oil filter element can best be detected by （）.

A.visual inspection of the elements
B.the pressure drop across the filter
C.high lube oil sump temperature
D.decrease in oil viscosity from the filter

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單項(xiàng)選擇題

In an auxiliary boiler steam and water system, the highest pressure will be in the （）.

A.steam stop valve
B.dry pipe
C.feedwater system
D.generating tubes

單項(xiàng)選擇題

If the jacket water temperature of an operating diesel engine suddenly rises above normal, the cause can be attributed to （）.

A.an overfilled expansion tank
B.excess chromate treatment of the jacket water
C.a clogged raw water sea suction
D.cavitation erosion of the heat exchanger tubes

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A dirty diesel engine oil filter element can best be detected by （）.

你可能感興趣的試題

In an auxiliary boiler steam and water system, the highest pressure will be in the （）.

If the jacket water temperature of an operating diesel engine suddenly rises above normal, the cause can be attributed to （）.