UK Driving Theory Practice Exam

What is the purpose of catalytic converters?

1. To improve fuel efficiency

2. To make the car go faster

3. to reduce exhaust emissions and is found on the exhaust system

4. To reduce the noise from the exhaust

The correct answer is: to reduce exhaust emissions and is found on the exhaust system

Catalytic converters are designed to reduce the level of harmful exhaust emissions from a vehicle. They are typically found in the exhaust system and work by catalyzing chemical reactions that convert harmful pollutants into less harmful substances. It is not used to improve fuel efficiency or make the car go faster, as these functions are handled by other components in the engine. Additionally, catalytic converters do not have a direct impact on reducing exhaust noise. Therefore, the purpose of catalytic converters is solely for reducing emissions from a vehicle.