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

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

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

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.

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

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

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

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

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

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