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← ScienceWhich outcome occurs when lubrication viscosity decreases excessively in high-speed bearings?
A)Increased adhesive wear occurs✓
B)Reduced lubricant film thickness
C)Improved convective heat transfer
D)Decreased hydrodynamic pressure
💡 Explanation
Reduced viscosity causes increased adhesive wear because the thinner lubricant leads to increased contact and friction between surfaces; boundary lubrication regimes dominate, therefore scuffing and material transfer become problematic rather than maintaining a separating fluid film.
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