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

Using a file without a handle may result in （）

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（）

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

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

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

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

One of the reasons that cause oil flowed from sludge outlet of a self-cleaning separator is（）

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

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