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

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）

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

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

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

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

（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

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

As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）

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