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

By comparing the exhaust gas temperature of each cylinder, the operator can determine if the load is balanced throughout the engine. The device most commonly used is a（）

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

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

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

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

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

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

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

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