What is the purpose of a catalytic converter?

  1. It allows the engine to quickly reach its normal operating temperature.
  2. It decreases engine power.
  3. It filters exhaust gases and reduces air pollution.
  4. It increases engine power.

Correct Answer

It filters exhaust gases and reduces air pollution.

Explanation: The purpose of a catalytic converter (CAT) is to remove toxic or polluting gases such as carbon monoxide; nitrogen oxide and unburned hydrocarbons from the exhaust emissions. When the CAT is faulty; an engine management warning light illuminates on the dashboard and drivers should seek advice from a competent person.

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