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

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

Using a file without a handle may result in （）

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（）

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

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

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

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

（）connectors hold best if a wire is accidentally pulled or a connection becomes loose.