Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk increases when lubricant temperatures decrease inside bearings?
A)Hydrodynamic film thickness reduction✓
B)Increased convective heat transfer
C)Elastohydrodynamic lubrication boost
D)Reduced asperity contact fatigue
💡 Explanation
Reduced bearing temperatures increase lubricant viscosity. The mechanism of hydrodynamic lubrication relies on the inverse relationship between temperature and viscosity because reduced temperatures increase viscosity to an extent that hydrodynamic film thickness deteriorates, therefore increasing wear rather than improving lubrication parameters.
🏆 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 phenomenon causes increased pipe drag when exceeding Reynolds limit?
- Which outcome results when a diesel engine's cylinder temperature drops significantly below its design point during cold starting?
- Which consequence results when a dielectric material exhibits unusually high permittivity under specific alternating voltage characteristics?
- Which risk increases when a bio-reactor substrate supply nears depletion?
- Which outcome occurs when applying a strong uniform magnetic field to a gas of non-interacting electrons?
- Which outcome occurs downstream of an industrial pump when fluid velocity exceeds the design threshold?
