Diesel engine air start system check valves are opened by （）

The cetane rating of diesel fuel is an indication of the （）

The treatment of the fuel oils involves storage, heating, filtering and（）

By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）

To proceed to the assistance of a ship in distress is（）

Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）

（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）