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

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（）

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

To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）

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

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

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

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

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）

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