單項(xiàng)選擇題

An indication of a diesel engine air intake being partially clogged, is （）.

A.low firing pressure and low exhaust temperatures
B.low firing pressure and normal exhaust temperatures
C.high firing pressure and low exhaust temperatures
D.high firing pressure and high exhaust temperatures

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單項(xiàng)選擇題

The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.

A.large conical springs
B.compressed air pressure
C.hydraulic pressure
D.exhaust gas pressure

單項(xiàng)選擇題

The water in an operating auxiliary boiler should be tested for alkalinity and chloride content each（）.

A.hour
B.day
C.week
D.month

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An indication of a diesel engine air intake being partially clogged, is （）.

你可能感興趣的試題

The closing of the exhaust valves used on a modern, large, low-speed, main propulsion diesel engine may be directly provided by （）.

The water in an operating auxiliary boiler should be tested for alkalinity and chloride content each（）.

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