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

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

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

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

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

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

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

（） is not installed on the main switchboar.

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

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