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Control SystemsSystem Type & Error Constants

The type of a unity-feedback control system is determined by the number of?

  • AZeros at the origin
  • BOpen-loop poles at the origin
  • CClosed-loop poles in the right half-plane
  • DFinite zeros only
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Correct Answer: B. Open-loop poles at the origin
Explanation: System type equals the number of pure integrators, or poles at s=0, in the open-loop transfer function G(s)H(s).
Reference: Standard control systems: system type & error constants
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