# Cascade Compensation in Time Domain MCQ’s

This set of Control Systems Multiple Choice Questions & Answers (MCQs) focuses on “Cascade Compensation in Time Domain”.

1. An all-pass network imparts only

a) Negative phase to the input

b) Positive phase to the input

c) 90 degree phase shift to the input

d) 180 degree phase shift to the input

2. Which of the following is an effect of lag compensation?

a) Decrease bandwidth

b) Improves transient response

c) Increases the effect of noise

d) Increases stability margin

3. A proportional controller leads to:

a) Zero steady state error for step input for type 1 system

b) Zero steady state error for step input for type 0 system

c) Infinite steady state error for step input for a type 1 system

d) Finite steady state error for step input for type 1 system

4. PD controller:

a) Decreases steady state error and improves stability

b) Rise time decreases

c) Transient response becomes poorer

d) Increases steady state error

5. PI controller:

a) Decreases steady state error and improves stability

b) Rise time decreases

c) Transient response becomes poorer

d) Increases steady state error

6. PD controller is used to compensate a system, Compared to the uncompensated system, the compensated system has:

a) A higher type number

b) Reduced damping

c) Higher noise amplification

d) Large transient overshoot

7. PID controller:

a) Decreases steady state error and improves stability

b) Rise time decreases

c) Transient response becomes poorer

d) Increases steady state error

8. Proportional controller

a) Decreases steady state error and improves stability

b) Rise time decreases

c) Transient response becomes poorer

d) Increases steady state error

9. Lead compensator increases bandwidth

a) True

b) False

10. Lag compensator reduces__________

a) Position constant

b) Velocity constant

c) Position variable

d) Acceleration constant