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

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

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

Which of the following items don’t belong to dock repair works?（）

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

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

（） is not installed on the main switchboar.

The condensers located in various stages of a flash evaporator are cooled by（）

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

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