單項選擇題

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