# Automatic Control System MCQ-2

Automatic Control System MCQ Questions and Answers

1. With the feedback system the transient response.

2. The transfer function of a tachometer is of the form

3. In a feedback system the bandwidth

4. The drag cup rotor is employed in a 2-phase induction motor to give

5. As compared to a closed loop system, an open loop system is ;

##### Automatic Control System MCQ

6. If the unit step response of a system is a unit impulse function then the transfer function of such a system is

7. In position control system the device used for providing rate feedback voltage is called :

8. A second order system is said to be over damped if the damping ratio is

9. A linear second order system with the transfer function G(S)=49/(S²+16S+49) in initially at rest and is subjected to a step input. The response of the system will exhibit a peak overshoot of

10. The AC motor used in servo application is a :

##### Automatic Control System MCQ

11. For a second order system if both the roots of the characteristic equation are real and distinct then the value of damping ratio will be

12. Which of the following may result in instability problem

13. Gain crossover frequency is the frequency at which the gain of L(jw) is

14. If the Nyquist plots cuts the negative real axis at a distance of 0.4 then the gain margin of the system is

15. The corner frequency of 1/(1+jw5) is

##### Automatic Control System MCQ

16. Slope of factor K in plotting Bode magnitude curve is

17. Feedback control system are :

18. The open loop transfer function of a unity feedback control system is given by G(S)=K/S(S+1) if the gain K is increased to infinity then the S(S+1) damping ratio will tend to become

19. For Nyquist plot we use

20. Consider the following properties attributed to state model of a system

(1) State model is technique
(2) State model can be derived from transfer function
(3) State model can be derived system of these statements.