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 main purpose of port State control is not to（）

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.

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

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

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

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

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

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

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