Using a file without a handle may result in （）

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.

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

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

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

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

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

Which of the diesel engine components listed increase air density and helps to improve engine operating efficiency?（）

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（）

Engine parameters shall be corresponded to NOx Technical Files. This is required by （）