Automatic Control System MCQ Questions and Answers
1. When the ouput of the system is independent of input signal, then the system is
Answer : A
2. A closed loop system basically different from open control system due to ______
Answer : D
3. Introduction of feedback reduces the effect of
Answer : D
4. Which of the following is an example of the open loop control system ?
Answer : A
5. The output is feedback at the input side through the ______ point.
Answer : C
Automatic Control System MCQ
6. Advantages of open loop system is/are :
Answer : A
7. The Laplace transform df(t)/dt of is :
Answer : B
8. The inverse Laplace of 1/S² is :
Answer : B
9. The transfer function of a system is defined as the ratio of output to input in ______
Answer : A
10. Three blocks with gains of 5,8 and 2 respectively are connected in series, The total gain of the arrangement is :
Answer : B
Automatic Control System MCQ
11. Tachometers is a device which converts :
Answer : B
12. If the damping ratin is equal to 1, a second-order system is ______
Answer : D
13. Root locus is symmetrical about :
Answer : A
14. A signal which value changes from zero to another level ‘N’ in negligible rime is called ______
Answer : C
15. In time response specification, The time require to rach 50% off the final value in first attempt is called
Answer : B
Automatic Control System MCQ
16. If the system has multiple poles on the imaginary axis, the system is :
Answer : A
17. A graph of the magnitude of gain versus frequency is called ______
Answer : B
18. Which of the following will constiture the state model of the system ?
Answer : B
19. The Nyquist plot intersect the real axis at a=-2, the gain margin is
Answer : C
20. Two stator windings of AC servomoter are oriented how many electrical degree a part
Answer : B
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