Using a file without a handle may result in （）

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

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

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

“Insufficiency of manning or insufficiency of certification of seafarers” is an identification of a（）

（）are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

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

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

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

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（）