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（）

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

As soon as a diesel engine has started, which of the listed engine operating parameters should be checked FIRST?（）

Using a file without a handle may result in （）

For a given exhaust gas boiler, what is the quantity of its evaporation mainly determined?（）

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

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

Under MARPOL Code the ship to which it applies has to carry （）

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