Flame failure in an automatically fired auxiliary boiler can from a/an （）

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

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

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

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

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

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

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

Cold weather starting of a diesel engine may be made easier by（）