Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）

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.

The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）

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

If separating effect is not good, which measure should be taken （）

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

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

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

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