Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome occurs when a catalytic converter operates continuously with excessive hydrocarbons and insufficient oxygen?
A)Catalyst poisoning by carbon deposition✓
B)Substrate melting from extreme exotherm
C)Thermal shock failure of ceramic bricks
D)Pressure buildup due to impeded flow
💡 Explanation
When excess hydrocarbons and insufficient oxygen reach the catalytic converter, incomplete combustion leads to carbon deposition on the catalyst surface, because the catalyst active sites are blocked, reducing efficiency. Therefore catalyst poisoning results, rather than melting, thermal shock, or pressure buildup which require different imbalances and temperatures.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome results when photon energy exceeds the work function of a metal surface during photoelectric emission?
- Which outcome occurs when a pump exceeds a radial turbine's design flow rate?
- Which outcome causes increased neutron flux instability during nuclear reactor operation?
- Which outcome reduces plasma etching rates despite fixed energy input?
- Which outcome occurs when municipal water pressure increases above design thresholds?
- Which outcome reduces aerodynamic lift as Reynolds number increases?
