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

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

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

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（）

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

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）

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

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

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