單項(xiàng)選擇題

In the starting system, the automatic valve is controlled by（）, and the cylinder start valves are controlled by（）

A.pilot air；pilot air
B.handle；solenoid
C.handle；pilot air coming through the distributor
D.solenoid；pilot air coming through the distributor

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單項(xiàng)選擇題

A marine diesel engine is started by（）

A.supplying high pressure oil into a hydraulic motor
B.supplying high temperature air into the cylinder
C.supplying high pressure air into the cylinder
D.electrical igniting

單項(xiàng)選擇題

In modern installations, the main engine and the standby auxiliary engines（）

A.can be started at low temperature and are free from preheating
B.usually are preheated by steam before being started
C.are kept at a constant temperature and free from preheating
D.are kept at a low temperature to save energy

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In the starting system, the automatic valve is controlled by（）, and the cylinder start valves are controlled by（）

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A marine diesel engine is started by（）

In modern installations, the main engine and the standby auxiliary engines（）