VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesScienceQuestion
Question
Science

Which outcome results when a catalytic converter operates sub-optimally?

A)Increased uncombusted hydrocarbon emissions
B)Higher particulate matter filter efficiency
C)Decreased engine NOx emission
D)Lower carbon dioxide generation rates

💡 Explanation

Increased uncombusted hydrocarbons result because catalyst poisoning reduces the surface area of catalytic δ-alumina using reactive sites promoting oxidation. Therefore, incomplete conversion of fuel increases hydrocarbon emissions, rather than lowering emissions as is usually the case with a functional catalytic converter.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Science