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A system with a damping ratio greater than unity is described as

  • A.undamped
  • B.overdamped
  • C.underdamped
  • D.critically damped

Answer: B

An overdamped system returns to rest without oscillating and more slowly than a critically damped one. Real structures are strongly underdamped, at a few per cent of critical. Isolation bearings and supplemental dampers are the components that approach such values.

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