1.

In a unity feedback control system, the open-loop transfer function is\(G\left( s \right) = \frac{{K\left( {s + 2} \right)}}{{{s^2}\left( {{s^2} + 7s + 12} \right)}}\)Then the error constants Kp, Kv and Ka, respectively, are

A. \(\infty ,\;\infty \;and\frac{K}{6}\)
B. \(0,\;0\;and\frac{K}{6}\)
C. \(\frac{K}{6},\;0\;and\;0\)
D. \(\frac{K}{6},\;\infty \;and\;\infty \)
Answer» B. \(0,\;0\;and\frac{K}{6}\)


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