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← ScienceWhich limit arises when lubricating oil viscosity decreases?
A)Increased mechanical component wear rate✓
B)Decreased convective heat transfer
C)Elevated system vibrational frequencies
D)Reduced hydraulic actuator responsiveness
💡 Explanation
Increased wear results from lower viscosity reducing the *hydrodynamic lubrication* film thickness, because more metal surfaces make contact. Therefore friction rises, speeding wear, rather than heat transfer changes or affecting system resonance that’s independent of lubrication oil properties.
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