The flash point of a residual fuel oil should be used to determine the highest temperature to which oil may be heated（）

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

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

The additional mark （）in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is unmanned periodically.

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

To shut down a diesel engine after it exceeds the set maximum speed，which type of device listed should be used?（）

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

Which of the following items don’t belong to dock repair works?（）

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

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