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

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

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

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（）

（） is not installed on the main switchboar.

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

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

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

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

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.