UK Driver CPC Part 1 Theory Test

What is the purpose of the EGR (Exhaust Gas Recirculation) system?

To increase engine power To reduce nitrogen oxide (NOx) emissions by recirculating a portion of exhaust gas back into the engine To improve fuel economy by reusing fuel To reduce exhaust noise levels

Correct Answer:

To reduce nitrogen oxide (NOx) emissions by recirculating a portion of exhaust gas back into the engine

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