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

The ISPS Code consists of a mandatory section-Part A, which shows（）

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

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

（） is not installed on the main switchboar.

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

A purge recovery system is used in a centrifugal air conditioning or refrigeration system to （）

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

The treatment of the fuel oils involves storage, heating, filtering and（）

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