Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome arises when a diesel engine runs on fuel with excessively low cetane number?
A)Increased engine knocking and misfires✓
B)Elevated exhaust gas temperature
C)Reduced peak power output
D)Premature wear of fuel injectors
💡 Explanation
When fuel's cetane number is too low, the ignition delay period increases because auto-ignition occurs too slowly relative to piston position, causing uncontrolled combustion and engine knocking. Therefore, increased knocking and misfires result, rather than elevated temperatures, reduced output, or injector wear, which arise from other combustion anomalies.
🏆 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 occurs when ethylene glycol antifreeze is added to a car radiator during cold weather?
- Which risk increases when subsonic aircraft wings experience stall?
- Which outcome results when flow exceeds design values in a Venturi meter?
- Which outcome occurs when a heat engine's condenser pressure increases?
- Which effect accompanies exceeding the gain medium's amplification limit in a pulsed laser?
- Which outcome occurs when broadband light reflects off a thin oil film?
