MCQOPTIONS
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MCQOPTIONS
This section includes 3 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. |
Consider the following statements:1. The effect of feedback is to reduce the system error2. Feedback increases the gain of the system in one frequency range but decreases in another.3. Feedback can cause a system that is originally stable to become unstableWhich of these statements are correct. |
| A. | 1,2 and 3 |
| B. | 1 and 2 |
| C. | 2 and 3 |
| D. | 1 and 3 |
| Answer» D. 1 and 3 | |
| 2. |
The polar plot of a transfer function passes through the critical point (-1,0).Gain margin is |
| A. | zero |
| B. | -1dB |
| C. | 1dB |
| D. | Infinity |
| Answer» B. -1dB | |
| 3. |
The characteristic equation of a feedback control system is given bys3+5s2+(K+6)s+K=0. In the root loci diagram, the asymptotes of the root loci for large K meet at a point in the s plane whose coordinates are: |
| A. | (2,0) |
| B. | (-1,0) |
| C. | (-2,0) |
| D. | (-3,0) |
| Answer» D. (-3,0) | |