Stability Theory » Exercise - 17. The transfer function of a control system is given as where k is the gain of the system in radians/amp. For this system to be critically damped, the value of k should be : (a) 1 (b) 2 (c) 3 (d) 4
Stability Theory » Exercise - 267. A polar plot interscets the unit circle at (-1 = j0). The gain margin of the system is : (a) -1 dB (b) 0 dB (c) ∞ dB (d) 2 dB
Stability Theory » Exercise - 142. The open-loop transfer function of a control system is given by G(s) = (K(s+8))/(S( s+4)(s+a)) The smallest possible value of a for which the system is stable in the closed-loop for all positive value of K is : (a) 0 (b) 4 (c) 8 (d) 12
Stability Theory » Exercise - 254. The damping ratio of a second-order system is 0.2. Its phase margin is approximately : (a) 0.4˚ (b) 2˚ (c) 20˚ (d) 40˚
Stability Theory » Exercise - 1 1. The loop transfer function of a feedback control system is given by Number of asymptotes of its root loci is : (a) 1 (b) 2 (c) 3 (d) 4