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16) Which one of the following options is a characteristic of Transient behavior? a. Gain b. D.C error c. Settling time d. Accuracy 17) The transfer function of a system is given by 20 s2+2s + 4. Which one of the following values correctly gives the damping ratio? a. 20 b. 1 c. 4 d. ½ 18) The transfer function of a system is given by 20 s2 + 2s + 4. Which one of the following values correctly gives steady state value? a. 201 b. 4 c. 5 d. ½ 19) The transfer function of a system is given by 20 s2+2s + 4. Which one of the following is correct? a. The response is underdamped b. The response is critically damped c. The response is undamped d. The response is overdamped 20) A linear system at rest is subject to an input signal r(t) = e-t. The response of the system for t>0 is given by c(t)=e-2. The transfer function of the system is a (s+ 2)/(s + 1) b. (s+1)/(s+2) I c. 2(s+1)/(s + 2) d. (s+ 2)/2(s + 2)