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← ScienceWhich outcome occurs when high fluid velocity impairs lubrication?
A)Increased wear from turbulent flow✓
B)Reduced heat transfer from friction
C)Enhanced laminar film thickness
D)Decreased viscosity due to shear
💡 Explanation
Increased wear arises because energy dissipation from turbulent flow overwhelms the Reynold’s lubrication mechanism, leading to increased contact of sliding surfaces. Therefore, turbulence increases wear, rather than a heat transfer change or improved viscous friction.
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