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

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

（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

Diesel engine air start system check valves are opened by （）

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

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）

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

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

The ISPS Code consists of a mandatory section-Part A, which shows（）

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