Multiple choice general knowledge

A device is fitted to motor vehicles to chemically reduce some gases produced by internal combustion engines like NOx, CO, and HC into less harmful products. Name this device.

  1. 2-stroke engines

  2. Carburetor

  3. Catalytic converter

  4. Tail pipe

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A catalytic converter is an emissions control device that uses catalysts (typically platinum, palladium, and rhodium) to convert harmful pollutants like NOx, CO, and HC into less harmful substances like nitrogen, carbon dioxide, and water vapor. Carburetors mix air and fuel for combustion, 2-stroke is an engine type, and the tailpipe simply expels exhaust.