Which of the following characteristic of lube oil helps to reduce the amount of deposits in the piston ring belt during the combustion process in a diesel engine?()

A . Low viscosity index B . Low carbon forming tendencies C . High film strength D . High non-corrosive qualitie

时间:2022-09-08 09:50:38 所属题库:船舶电气与船舶安全题库

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