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

The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

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

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

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（）

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

The main purpose of port State control is not to（）

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

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