Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome occurs when lubricant at low temperature?
A)Increased viscous drag within bearings✓
B)Reduced hydrostatic pressure in seals
C)Enhanced turbulent flow in channels
D)Minimal effect engine overall performance
💡 Explanation
Increased viscous drag occurs because lower temperatures raise the oil's viscosity via increased intermolecular cohesive forces. This directly elevates the fluid's shear resistance within the bearing, therefore more mechanical power is converted to thermal energy to overcome rather than enabling efficient motion.
🏆 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 risk increases significantly when using nickel-cadmium (Ni-Cd) batteries with frequent shallow discharges, leading to reduced runtimes?
- Which electronic outcome occurs when doping adjusts semiconductor material at a P-N junction?
- Which risk increases when adaptive optics fail during laser micromachining?
- Which outcome occurs from prolonged exposure to ultraviolet radiation in polyethylene plastic?
- Which outcome initiates in a Michelson interferometer when misalignment is too high?
- Which risk increases when a turbine blade's crystal lattice contains larger grain boundaries?
