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← ScienceWhich risk increases when lubricating oil within an engine reaches a high Reynolds number?
A)Increased thermal conduction
B)Onset of turbulent flow✓
C)Decreased viscous drag
D)Elevated laminar sublayer
💡 Explanation
Turbulent flow increases because a higher Reynolds number indicates inertial forces dominate over viscous forces, therefore turbulence arises more easily, rather than the smoother laminar flow, resulting in less efficient lubrication and increased engine wear.
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