Revision question · Band 2 traffic signs and signals, car control, pedestrians, mechanical knowledge

What's the purpose of a catalytic converter?

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To reduce fuel consumption

To reduce the risk of fire

To reduce toxic exhaust gases

To reduce engine wear

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To reduce toxic exhaust gasesThis was the right answer

Catalytic converters are designed to reduce toxic exhaust emissions by up to 90%. They have a high normal working temperature and for this reason are inefficient when the engine is cold.

Reviewed reading for this question

Vehicle maintenanceHighway Code annex · A catalytic converter is exhaust-treatment equipment that reduces specified harmful compounds; it does not eliminate carbon dioxide.

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