Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases when excessive fuel accumulates within the cylinder during cold starts?
A)Catalytic converter thermal shock✓
B)Piston ring blow-by reduction
C)Intake valve face erosion
D)Fuel injector nozzle varnishing
💡 Explanation
Catalytic converter thermal shock risk increases because unburnt fuel causes elevated hydrocarbons, initiating rapid exotherms within the converter's precious metal catalysts. The principle of catalytic activation leads to extreme thermal gradients, therefore thermal cracking can occur, rather than gradual heating under normal operating conditions.
🏆 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 Technology →- Which kinematic error results when asymmetric link parameters exist within robot's DH table?
- Which outcome results when a diesel engine's fuel injectors malfunction, causing excessive fuel delivery?
- Which outcome occurs when exceeding tire placard pressure during landing?
- Which consequence arises when an oil pump's pressure relief valve sticks closed in aircraft piston engine?
- Which consequence results when subcooling drops excessively in an HVAC evaporator?
- Which outcome occurs when a CNC lathe is unable to maintain positional tolerances during titanium alloy machining?
