MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
How many types of controllers and compensators are there respectively? |
| A. | 4, 3 |
| B. | 3, 4 |
| C. | 4, 5 |
| D. | 5, 4 |
| Answer» B. 3, 4 | |
| 2. |
What is the need for a controller? |
| A. | Receive control signals |
| B. | Transmit control signals |
| C. | Modify control signals |
| D. | Create control signals |
| Answer» D. Create control signals | |
| 3. |
Actuator is the basic component of an automatic control system. |
| A. | False |
| B. | True |
| Answer» C. | |
| 4. |
For a unity feedback control system, the open loop transfer function G(s) = 10(s+2)/s2(s+1). What is the acceleration error constant? |
| A. | Infinity |
| B. | 5 |
| C. | 10 |
| D. | 20 |
| Answer» E. | |
| 5. |
A performance index must offer selectivity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
The open loop transfer function for a unit feedback system is G(s) = K/s(sT+1). By what factor the amplitude gain K should be reduced so that the peak overshoot becomes 25% from 75%? |
| A. | 75 |
| B. | 25 |
| C. | 20 |
| D. | 10 |
| Answer» D. 10 | |
| 7. |
The response of a servomechanism is 1+0.2e-60t-1.2e-10t when subjected to a unit step input. What is the damping ratio? |
| A. | 1.21 |
| B. | 1.43 |
| C. | 1.59 |
| D. | 1.74 |
| Answer» C. 1.59 | |
| 8. |
What is the response of the feedback function with open loop transfer function G(s) = 4/s(s+5) and input is input step? |
| A. | 1-1/3(4e<sup>-t</sup> e<sup>-4t</sup>) |
| B. | 1-1/2(6e<sup>-t</sup> e<sup>-4t</sup>) |
| C. | 1-1/3(6e<sup>-t</sup> e<sup>-4t</sup>) |
| D. | 1-1/2(4e<sup>-t</sup> e<sup>4t</sup>) |
| Answer» B. 1-1/2(6e<sup>-t</sup> e<sup>-4t</sup>) | |
| 9. |
What is the analogous electrical element of Frictional coefficient (B) in Force-Current Analogy for mechanical translational system? |
| A. | Resistance |
| B. | Conductance |
| C. | Flux |
| D. | Voltage |
| Answer» C. Flux | |
| 10. |
A unity feedback system has an open loop transfer function G(s) =25/s(s+8). What is the percentage of it s peak overshoot? |
| A. | 0.13% |
| B. | 1.13% |
| C. | 1.26% |
| D. | 1.52% |
| Answer» E. | |