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← ScienceWhich outcome reduces efficiency when lubricating oil warms?
A)Increased flow; decreased hydrodynamic lift✓
B)Polymerization; thickening of the oil
C)Stable laminar flow; oil stiffening
D)Elevated pressure; reduced pump cavitation
💡 Explanation
Decreasing oil viscosity with rising temperature causes increased flow, reducing generated hydrodynamic lift because viscous drag decreases, impacting load support causing breakdown rather than improving lubrication. Oil polymerization would increase viscosity under adverse chemical conditons.
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