The condensers located in various stages of a flash evaporator are cooled by（）

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

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

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

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 listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

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.

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（）

Which one is NOT the ‘clear grounds’ for a more detailed inspection?（）

（） is not installed on the main switchboar.