The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the（）

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

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

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

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

The shipboard oil pollution emergency plan will be invalid after （）

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

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

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

Using a file without a handle may result in （）