Which outcome occurs when an engine's lubricant degrades?

💡 Explanation

Increased friction occurs when the lubricant degrades because boundary lubrication replaces hydrodynamic lubrication decreasing load support; therefore, temperature increases rather than pressure increase or altered viscosity, because frictional heat dominates.

• Which consequence results when increased surface imperfections on optical lenses cause distortions?
• Which outcome results magnets exceeding their Curie temperature?
• Which outcome occurs when catalytic converter precious metal surface area decreases during vehicle operation?
• Which mechanism enables current flow through an oxide layer in a metal-oxide-semiconductor (MOS) transistor below threshold voltage?
• Which risk increases as Pu-239 undergoes alpha decay?
• Which outcome occurs when a high-energy photon approaches a black hole's event horizon?