Automatic Control System MCQ Questions and Answers
1. Traffic light system is the example of :
Answer : A
2. The gain margin of a second order system is
Answer : B
3. The most powerful controller is :
Answer : C
4. A control system with excessive noise, is likely to suffer from
Answer : A
5. The most commonly used input signal(s) in control system is/are
Answer : A
Automatic Control System MCQ
6. When the gain K is increased the system become :
Answer : B
7. An ideal potentiometer should have :
Answer : B
8. A static variable approach can be applied to _____ system
Answer : D
9. The transfer function of a system is given as 100/(S²+20S+100), The system is
Answer : B
10. For handling multiple input multiple output system which one of the following is used :
Answer : A
Automatic Control System MCQ
11. Phase margin of a system is used to specify :
Answer : A
12. When the input frequency is varied from zero to infinity causing variations in magnitude and phase angle, the traced locus by phaser is called :
Answer : A
13. A system with gain margin close to unity or a phase marigin close to zero is :
Answer : B
14. If the bandwidth of a system is increased the system response will
Answer : B
15. The characteristic equation of a feedback control system is 2S^4+S³+3S²+5S+10=0. The number of roots in the right-half S plane is :
Answer : C
Automatic Control System MCQ
16. For a stable system, the phase margin :
Answer : A
17. A system has a single pole at the origin, its impulse response is :
Answer : A
18. Gain margin in the factor by which the system gain can be increased to drive it to the verge of :
Answer : B
19. Which one of the following element is not required in an automatic control system.
Answer : C
20. The largest error between reference input and output during the transient period is called
Answer : C
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