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

Using a file without a handle may result in （）

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

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

Thermostatic steam pressure reducing valves are used in the fuel oil service system to control the（）

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

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

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

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

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