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

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

As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）

Under MARPOL Code the ship to which it applies has to carry （）

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

（） is not installed on the main switchboar.

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

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

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

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