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

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

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

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（）

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

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

Engine parameters shall be corresponded to NOx Technical Files. This is required 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

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

Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）