Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk increases when an engine's lubricating oil degrades?
A)Increased frictional heating of engine parts✓
B)Exceeding the stoichiometric air-fuel mixture
C)Decreased thermal efficiency of combustion
D)Elevated catalyst poisoning of exhaust system
💡 Explanation
Increased frictional heating becomes a risk because oil degradation reduces FILM THICKNESS, increasing contact between moving parts. This generates more friction and therefore more heat, rather than the other options which relate separately to to combustion or exhaust.
🏆 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 result occurs when limited spatial coherence is applied while forming an image under extreme microscopy conditions?
- Which outcome results when elevated fuel injection pressure lowers Reynolds number within a diesel engine's injector nozzle?
- Which effect occurs during electromagnetic wave propagation through a dispersive medium?
- Which outcome arises from excessive concentration polarization during electrodialysis through ion-exchange membranes?
- Which consequence is observed when repulsive electrostatic interactions dominate electron orbitals?
- Which risk increases when an electron-tunnel-diode is excessively miniaturized?