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

If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）

Cold weather starting of a diesel engine may be made easier by（）

Engine parameters shall be corresponded to NOx Technical Files. This is required by （）

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

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

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（）

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）

（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.

（） is not installed on the main switchboar.