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

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

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

By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）

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

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

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

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?（）

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