MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Control Systems Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The characteristic equation is s3+14s2+(45+K)s+K =0, centroid is located at (-x,0) then the value of x is ____________ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 2. |
The characteristic equation of a control system is given as 1+ K(s+4)/s(s+7)(s2+2s+2)=0. The real axis intercept for root locus asymptote is: |
| A. | -2.25 |
| B. | -1 |
| C. | -1.67 |
| D. | 0 |
| Answer» D. 0 | |
| 3. |
The open loop transfer function of the feedback control system is given by G(s) =K(s+3)/s(s+4)2(s+5)(s+6). The number of asymptotes and the centroid of asymptotes of the root loci of closed loop system is |
| A. | 4 and (-4,0) |
| B. | 3 and (-12,0) |
| C. | -4 and (-4,0) |
| D. | -3 and (-12,0) |
| Answer» B. 3 and (-12,0) | |
| 4. |
If a feedback control system has its open loop transfer function G(s)H(s) = K/(s-2)(s2+3s+5) has the root locus plot which intersects the imaginary axis at s =0, then the value of K at this point will be |
| A. | -5 |
| B. | 10 |
| C. | 5 |
| D. | -10 |
| Answer» C. 5 | |
| 5. |
The angles of asymptotes of the root loci of the equation s3+5s2+(K+2)s+K=0 are: |
| A. | 0° and 270° |
| B. | 0° and 180° |
| C. | 90° and 270° |
| D. | 90° and 180° |
| Answer» D. 90° and 180° | |
| 6. |
Determine the centroid of the root locus for the system having G(s)H(s) = K/(s+1)(s2+4s+5) |
| A. | -2.1 |
| B. | -1.78 |
| C. | -1.66 |
| D. | -1.06 |
| Answer» D. -1.06 | |