Which of the following statements is correct? Nichol's chart is useful for detailed study and analysis of

For the equation s3-4s2+s+6=0 the number of roots in the left half of s-plane will be

The bode diagram approach is the most commonly used method for the analysis and synthesis of

A. Non Linear Feedback control system only
B. Linear Feedback Control System Only
C.Open Loop System Only
D. All of the above

The open loop transfer function of a unity feedback control system is given by G(S)=K(S+2)/s(s2+2s+2) the centroid and angles of root locus asymptotes are respectively

Which of the following is the most likely reason for large overshoot in a control system?

1. High Gain in a System
2. Presence of dead time delay in a system
3. High Positive Correcting Torque
4. High Retarding Torque

Answer : High Positive Correcting Torque

Given a unity feedback system with G(S)=K/s(S+4), the value of k for damping ratio of 0.5 is

The output of first order hold between two consecutive sampling instant is a

How can steady state eror in a system be reduced ?

A. By decreasing the type of system
B. By increasing system gain
C. By decreasing the static error constant
D. By increasing the input

the type number of control system with G(s)H(s)=K(s+2)/s(s2+2s+3) is

feedback control systems are