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

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（）

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

Flame failure in an automatically fired auxiliary boiler can from a/an （）

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

The main purpose of port State control is not to（）

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

The ISPS Code consists of a mandatory section-Part A, which shows（）

During the diesel engine running, the water level of F.W expansion tank should normally kept in the （） level of glass tube.