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 （）

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

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

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

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

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

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

（） is not installed on the main switchboar.

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）