What is the steady-state error for a unit step input to a Type 0 system?
Q.2Medium
What does the Routh-Hurwitz criterion determine?
Q.3Medium
The gain margin of a system can be determined from the bode plot as:
Q.4Medium
For a second-order system with natural frequency ωn = 2 rad/s and damping ratio ζ = 0.5, the system is:
Q.5Medium
The rise time of a second-order underdamped system decreases with:
Advertisement
Q.6Medium
Which compensation technique is used to improve steady-state accuracy?
Q.7Medium
The Nyquist plot is a mapping of:
Q.8Medium
The overshoot of a second-order system is independent of:
Q.9Medium
Which of the following is a state-space representation advantage over transfer function?
Q.10Medium
In a closed-loop control system, the feedback path gain is reduced from 1 to 0.5. How does this affect the system's steady-state error?
Q.11Medium
For a control system, the gain crossover frequency and phase crossover frequency are equal. What does this indicate about the system's stability margin?
Q.12Medium
A lead compensator has a transfer function Gc(s) = K(s+2)/(s+8). What is the effect of this compensator?
Q.13Medium
For a system with transfer function G(s)H(s) = 10/(s²(s+2)), the number of asymptotes in the root locus is:
Q.14Medium
Which statement is correct regarding the Bode plot of a system?
Q.15Medium
A PID controller is used for a plant. If only the derivative gain Kd is increased while keeping Kp and Ki constant, what is the primary effect?
Q.16Medium
In frequency response analysis, what does the gain margin represent?
Q.17Medium
A lag compensator has the form Gc(s) = K(s+0.1)/(s+0.01). Which characteristic does it primarily improve?
Q.18Medium
The characteristic equation of a closed-loop system is s³ + 6s² + 11s + 6 = 0. What are the poles?
Q.19Medium
For a unity feedback system, if the open-loop DC gain is 100, what is the closed-loop DC gain?
Q.20Medium
In the Routh-Hurwitz stability criterion, if the first column has a sign change, what does it indicate?
