The angle condition used for checking whether any point lies on root locus or not is........... ± (2q) 360o. ± (2q) 180o. ± (2q + 1) 180o. ± (2q + 1) 360o. TRUE ANSWER : ? YOUR ANSWER : ?
The transfer function of a phase lead compensator is given by: G(s) = (1 + 3Ts)/(1 + Ts) where T>0. What is the maximum phase shift provided by such a compensator? 30° 60° 45° 90° TRUE ANSWER : ? YOUR ANSWER : ?
The transfer function of a system given by The system is an over damped. a critically damped. unstable. an under damped. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is/are represents the lead compensator? both 2 and 3 (s+5)/(s+6) (s+2)/(s+5) (s+2)/(s+1) TRUE ANSWER : ? YOUR ANSWER : ?
A cascade of three linear time invariant systems is causal and unstable. From this we conclude that at least one system is causal and all systems are unstable. at least one system is unstable and at least one system is causal. the majority are unstable and the majority are causal. each system in the cascade is individually caused and unstable. TRUE ANSWER : ? YOUR ANSWER : ?
The impulse response of an initally relaxed linear system is e-2tu(t). To produce a response of te-2tu(t), the input must be equal to e-tu(t). 2e-tu(t). (0.5)e-2tu(t). e-2tu(t). TRUE ANSWER : ? YOUR ANSWER : ?
At which frequency does the Bode magnitude plots for the functions K/S2 have gain crossover frequency ω = √K rad/sec. ω = K2 rad/sec. ω = K rad/sec. ω = 0 rad/sec. TRUE ANSWER : ? YOUR ANSWER : ?
A transfer function is given as The steady state sinusoidal response will become zero at a frequency response of 3 rad/s 4 rad/s 2 rad/s 9 rad/s TRUE ANSWER : ? YOUR ANSWER : ?
A unity feedback control system has an open loop transfer function G(s) = k/(s(s² + 7s + 12) The gain k for which s = -1 + j1 will lie on the root locus of the system is 4 6.5 10 5 TRUE ANSWER : ? YOUR ANSWER : ?
In frequency response analysis of second order system, the error at corner frequency is 20 log2ξ 10 logξ -20 log2ξ -10 logξ TRUE ANSWER : ? YOUR ANSWER : ?