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

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

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（）

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

Flame failure in an automatically fired auxiliary boiler can from a/an （）

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

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

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

When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish