Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich phenomenon increases wear in engine cylinders shortly after cold start?
A)Fuel dilution causing viscosity breakdown✓
B)Oxidation reduces oil lubricity
C)Carbon deposits block oil passages
D)Water condensation dissolving additives
💡 Explanation
During cold start, incomplete fuel combustion causes unburned fuel to enter the crankcase, diluting the oil, reducing viscosity, and causing boundary lubrication. Therefore fuel dilution is the risk, rather than oxidation, deposits or dissolution, which all require differing conditions and rates.
🏆 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 arises when electron's wave function encounters a potential barrier narrower than its de Broglie wavelength?
- Which risk increases noticeably within a high-mass neutron star?
- Which influence on photon paths follows from black hole mass?
- Which limitation arises when hybridizing molecular orbitals to maximize bonding?
- Which outcome reduces signal fidelity during waveguide propagation?
- Which outcome occurs when cladding refractive index increases on waveguide?
