Practice question

What is the main job of a catalytic converter in the exhaust system?

  1. To increase exhaust noise for sporting sound
  2. To reduce certain harmful exhaust pollutants by chemical conversion
  3. To store spare fuel
  4. To drive the water pump

Answer: B — To reduce certain harmful exhaust pollutants by chemical conversion

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Practice more: CCEA GCSE MVRUS Practice Questions - CCEA GCSE Motor Vehicle and Road User Studies (2017) (Northern Ireland) Exam →