What is the function of a catalytic converter in an engine?

• A. To increase fuel efficiency
• B. To reduce harmful emissions
• C. To maintain engine temperature
• D. To enhance engine sound

Answer: (B)

The function of a catalytic converter in an engine is to reduce harmful emissions. This component is critical in controlling the exhaust pollutants produced during fuel combustion. It operates by catalyzing chemical reactions that convert harmful gases such as carbon monoxide, hydrocarbons, and nitrogen oxides into less harmful substances like carbon dioxide and nitrogen before they are released into the atmosphere. By doing so, the catalytic converter plays a significant role in meeting environmental regulations and improving air quality.

While improving fuel efficiency, maintaining engine temperature, and enhancing engine sound are important aspects of overall engine performance and design, they are not the primary functions of the catalytic converter. Its main focus is on minimizing the environmental impact of internal combustion engines.