In a forced-feed lubrication system, what statement is true concerning lube oil reservoir/sump residence time?

Correct Answer: Option B — The lower the oil level, the shorter the residence time, and the hotter the oil will be as delivered by the pump.

Lower oil levels reduce the residence time in the sump, meaning the oil has less time to release heat and allow contaminants to settle. Consequently, the pump draws in warmer oil, which may reduce the viscosity and load-carrying capacity of the lubricant, potentially leading to increased wear on engine components.