Which risk increases when lubricating oil viscosity degrades past a threshold?

💡 Explanation

Lower viscosity oil increases bearing wear because the hydrodynamic lubrication mechanism becomes less effective; therefore, metal-on-metal contact increases, rather than improved efficiency or fatigue performance, which require higher viscosity.

• In a catalytic converter, which mechanism facilitates the conversion of nitrogen oxides (NOx) into nitrogen gas (N2)?
• Which outcome results when hydraulic fluid compressibility increases in a robotic actuator?
• Which mechanism causes signal degradation when an electric field encounters an imperfect Faraday cage?
• Which mechanism increases entropy when amorphous silicon transitions to polycrystalline silicon at high temperature?
• Which outcome results during rapid Diesel cycle operation?
• Which effect increases when light reflects off water at Brewster's angle?