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

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

Which of the listed governor characteristics will greatly affect the load sharing relationship between paralleled diesel generators?（）

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

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

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

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?（）

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

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

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