Related MCQs

• For the transfer functionG(s) = 5(s + 4) s (s + 0.25)(s2 + 4s + 25)The values of the constant gain term and the highest corner frequency of t he Bode plot respectively are
• The maximum phase shift that can be provided by a lead compensator with transfer functionG(s) = 1 + 6s is1 + 2s
• A linear second-order single-input continuous-time system is described by the following set of differential equations : X1 (t) = 2 X1 (t) + 4 X2 (t) X2 (t) = 2 X1 (t) X2 (t) + u (t) where X1 (t) and X2 (t) are the state variables and u (t) is the control variable. The system is
• A system with the open loop transfer function G(s) = K s(s + 2)(s2 + 2s + 2)is connected in a negative feedback configuration with a feedback gain of unity. For the closed loop system to be marginally stable, the value of K is ____
• The closed-loop transfer function of a system is T(s) = 4 (s2 + 0.4s + 4)The steady state error due to unit step input is ____.
• An open loop control system results in a response of e 2t (sin5t + cos5t) for a unit impulse input. The DC gain of the control system is ______.
• For the transfer functionG(s) H(s) = 1 s (s + 1)(s + 0.5)the phase cross-over frequency is_____ rad/sec
• The value of k for a unity feedback system with G(s) = k s(1 + s)to have a peak overshoot of 50% is _______
• The z-transform of a signal is given by c(z) = z 1 (1 - z 4)4(1 - z 1)2Its final value is_______ .
• A unity-feedback control system has the open-loop transfer functionG(s) = 4(1 + 2s) s2 (s + 2)If input to the system is a unit ramp, then steadystate error will be_______