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

你可能感興趣的試題

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

單項(xiàng)選擇題

In order to maintain a constant outlet water temperature of 80-85℃ from the engine, a three-way valve is installed（）

A.at the jacket cooler outlet to control the flux through the engine
B.at the jacket cooler outlet to control the flux through the cooler
C.at the engine outlet to control the flux through the engine
D.at the engine inlet to control the flux through the engine