The open loop transfer function of a unity feedback system is given by G(s) = 1/(s+2)². The closed loop transfer function will have poles at -2,2 -2,-2 -2,-1 -2+j,-2-j TRUE ANSWER : ? YOUR ANSWER : ?
The open loop transfer function for unity feedback system is given by Find the steady state error for a ramp input of magnitude 10? 5 0 infinite 2 TRUE ANSWER : ? YOUR ANSWER : ?
If the magnitude of G(jω)H(jω) at phase crossover frequency is 0.5. Find the gain margin of the given system? 4 2 0.5 1 TRUE ANSWER : ? YOUR ANSWER : ?
Force balancing equation for elastic element (K) is (where, x = displacement) K dx/dt None of these K d2x/dt2 K *x TRUE ANSWER : ? YOUR ANSWER : ?
A transfer function has its zero in the right half of the s-plane. The function is positive real will give stable impulse response is non-minimum phase is minimum phase TRUE ANSWER : ? YOUR ANSWER : ?
For a transfer function H (s) = P(s) / Q(s), where P (s) and Q (s) are polynomials in s. Then maximum degree of P (s) and Q (s) differ at most by one. the degree of P (s) is always greater than the degree of Q (s). degree of P (s) is independent of degree of Q (s). the degree of P (s) and Q (s) are same. TRUE ANSWER : ? YOUR ANSWER : ?
The type of a control system is obtained from -------------- transfer function? closed loop none of above. open loop both open loop and closed loop TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following are the disadvantages of a closed loop control system? Complex and costly. Oscillatory response. Reduces the overall gain. All of these TRUE ANSWER : ? YOUR ANSWER : ?
The unit impulse response of second order system is 1/6 * e-0.8t sin(0.6t). THen the natural frequency is 0.8 rad/s 1 rad/s 0.6 rad/s 2 rad/s TRUE ANSWER : ? YOUR ANSWER : ?
A first order control system is initially at 0 V and subjected to a sudden input at t=0. Its output reaches 1.1 V in 4 sec and eventually reaches steady state of 2 V. Find the time constant? 5 sec 2 sec 6 sec 4 sec TRUE ANSWER : ? YOUR ANSWER : ?