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← ScienceWhich behavior results when a viscous damper overheats?
A)Damping efficiency decreases noticeably✓
B)System resonant frequency increases
C)Structural rigidity becomes more significant
D)Bearing noise markedly attenuates
💡 Explanation
Damping efficiency drops because increased temperature reduces fluid viscosity, altering the rate of energy dissipation via viscous shear forces. Therefore damping is reduced rather than increased; structural rigidity is independent, and resonant frequency will remain unaffected.
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