Which of the following items don’t belong to dock repair works?（）

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

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

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

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

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

Using a file without a handle may result in （）

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

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

If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）