MCQOPTIONS
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MCQOPTIONS
This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Control Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In polar plots, if a pole is added at the origin, what would be the value of the magnitude at Ω = 0? |
| A. | Zero |
| B. | Infinity |
| C. | Unity |
| D. | Unpredictable |
| Answer» C. Unity | |
| 2. |
Due to an addition of pole at origin, the polar plot gets shifted by ___ at ω = 0 ? |
| A. | -45° |
| B. | -60° |
| C. | -90° |
| D. | -180° |
| Answer» D. -180° | |
| 3. |
Consider the system represented by the equation given below. What would be the total phase value at ω = 0?200/[s3 (s + 3) (s + 6) (s + 10)]. |
| A. | -90° |
| B. | -180° |
| C. | -270° |
| D. | -360° |
| Answer» D. -360° | |
| 4. |
If the system is represented by G(s) H(s) = k (s+7) / s (s +3) (s + 2), what would be its magnitude at ω = ∞? |
| A. | 0 |
| B. | ∞ |
| C. | 7/10 |
| D. | 21 |
| Answer» B. ∞ | |
| 5. |
Consider a feedback system with gain margin of about 30. At what point does Nyquist plot crosses negative real axis? |
| A. | -3 |
| B. | -0.3 |
| C. | -30 |
| D. | -0.03 |
| Answer» C. -30 | |
| 6. |
For Nyquist contour, the size of radius is _______ |
| A. | 25 |
| B. | 0 |
| C. | 1 |
| D. | ∞ |
| Answer» E. | |
| 7. |
If a Nyquist plot of G (jω) H (jω) for a closed loop system passes through (-2, j0) point in GH plane, what would be the value of gain margin of the system in dB? |
| A. | 0 dB |
| B. | 2.0201 dB |
| C. | 4 dB |
| D. | 6.0205 dB |
| Answer» E. | |
| 8. |
Which principle specifies the relationship between enclosure of poles & zeros by s-plane contour and the encirclement of origin by q(s) plane contour? |
| A. | Argument |
| B. | Agreement |
| C. | Assessment |
| D. | Assortment |
| Answer» B. Agreement | |