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

Which consequence results when an exhaust catalyst degrades?

A)Increased uncombusted hydrocarbon emissions
B)Decreased air-fuel mixture equivalence ratio
C)Elevated engine oil viscosity breakdown
D)Premature oxygen sensor fouling

💡 Explanation

Increased uncombusted hydrocarbon emissions results because catalyst surface area diminishes via sintering, leading to reduced active sites for oxidation; therefore, hydrocarbons bypass the catalytic converter, rather than being converted to less harmful substances under ideal catalyst function.

🏆 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