To proceed to the assistance of a ship in distress is（）

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

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

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

Using a file without a handle may result in （）

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

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

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

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 condensers located in various stages of a flash evaporator are cooled by（）