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

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

The cetane rating of diesel fuel is an indication of the （）

The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

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

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

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

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

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

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