Question: 8 . True / False: Volumetric efficiency is the ratio of the actual volume of air - fuel mixture drawn into the engine to the

8. True/False: Volumetric efficiency is the ratio of the actual volume of air-fuel mixture drawn into the engine to the theoretical volume it could hold.
9. True/False: Exhaust gas recirculation (EGR) is used to increase nitrogen oxide emissions from the engine to improve performance.

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