Control Systems-Routh-Hurwitz and Nyquist Stability Criteria [GATE (Graduate Aptitude Test in Engineering) Electronics & CE (EC)]: Questions 1 - 4 of 16
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Question 1
Appeared in Year: 2018
Question MCQ▾
Consider the following statements with respect to the characteristic polynomial defined as
The system is stable for
ii. The system is unstable for
iii. The system is unstable for
iv. The system is stable for
Which of the above statements are correct?
Choices
| Choice (4) | Response | |
|---|---|---|
a. | (i) and (iv) | |
b. | (i) and (iii) | |
c. | (ii) and (iv) | |
d. | (ii) and (iii) | |
Question 2
Appeared in Year: 2014
Question Assertion-Reason▾
Assertion(Ꭺ)
Routh Hurwitz criterion gives both absolute as well as relative stability using characteristic equation. (June)
Reason(Ꭱ)
For a system to be stable all roots of characteristic equation must lie in left half of s-plane.
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Ꭺ is true but Ꭱ is false | |
b. | Ꭺ is false but Ꭱ is true | |
c. | Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ | |
d. | Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ | |
Question 3
Appeared in Year: 2013
Question MCQ▾
Routh՚s array for a system is given below: (September)
| 1 | 3 | 5 | |
| 1 | 2 | 9 | |
| 1 | 5 | ||
| -3 | |||
| 5 |
The system is
Choices
| Choice (4) | Response | |
|---|---|---|
a. | Conditionally stable | |
b. | Stable | |
c. | Unstable | |
d. | Marginally stable | |
Question 4
Appeared in Year: 2014
Question MCQ▾
What is the relation between k and T such that a unity feedback control system whose open loop transfer function below is stable? (June)
Choices
| Choice (4) | Response | |
|---|---|---|
a. | ||
b. | ||
c. | ||
d. | ||