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This section includes 13 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 can the steady state error can be reduced? |
| A. | By decreasing the type of the system |
| B. | By increasing system gain |
| C. | By decreasing the static error constant |
| D. | By increasing the input |
| Answer» E. | |
| 2. |
Given a unity feedback system with G (s) =K/ s (s+4). What is the value of K for a damping ratio of 0.5? |
| A. | 1 |
| B. | 16 |
| C. | 4 |
| D. | 2 |
| Answer» C. 4 | |
| 3. |
An underdamped second order system with negative damping will have the roots : |
| A. | On the negative real axis as roots |
| B. | On the left hand side of complex plane as complex roots |
| C. | On the right hand side of complex plane as complex conjugates |
| D. | On the positive real axis as real roots |
| Answer» D. On the positive real axis as real roots | |
| 4. |
GIVEN_A_UNITY_FEEDBACK_SYSTEM_WITH_G_(S)_=K/_S_(S+4)._WHAT_IS_THE_VALUE_OF_K_FOR_A_DAMPING_RATIO_OF_0.5??$ |
| A. | 1 |
| B. | 16 |
| C. | 4 |
| D. | 2 |
| Answer» C. 4 | |
| 5. |
How_can_the_steady_state_error_can_be_reduced?$ |
| A. | By decreasing the type of the system |
| B. | By increasing system gain |
| C. | By decreasing the static error constant |
| D. | By increasing the input |
| Answer» E. | |
| 6. |
An underdamped second order system with negative damping will have the roots ? |
| A. | On the negative real axis as roots |
| B. | On the left hand side of complex plane as complex roots |
| C. | On the right hand side of complex plane as complex conjugates |
| D. | On the positive real axis as real roots |
| Answer» D. On the positive real axis as real roots | |
| 7. |
With negative feedback in a closed loop control system, the system sensitivity to parameter variation: |
| A. | Increases |
| B. | Decreases |
| C. | Becomes zero |
| D. | Becomes infinite |
| Answer» C. Becomes zero | |
| 8. |
When the unit step response of a unity feedback control system having forward path transfer function G (s) =80/s(s+18)? |
| A. | Overdamped |
| B. | Critically damped |
| C. | Under damped |
| D. | Un Damped oscillatory |
| Answer» B. Critically damped | |
| 9. |
When the period of the observation is large, the type of the error will be: |
| A. | Transient error |
| B. | Steady state error |
| C. | Half-power error |
| D. | Position error constant |
| Answer» C. Half-power error | |
| 10. |
A system has a single pole at origin. Its impulse response will be: |
| A. | Constant |
| B. | Ramp |
| C. | Decaying exponential |
| D. | Oscillatory |
| Answer» B. Ramp | |
| 11. |
A third order system is approximated to an equivalent second order system. The rise time of this approximated lower order system will be: |
| A. | Same as the original system for any input |
| B. | Smaller than the original system for any input |
| C. | Larger than the original system for any input |
| D. | Larger or smaller depending on the input |
| Answer» C. Larger than the original system for any input | |
| 12. |
The identical first order system have been cascaded non-interactively. The unit step response of the systems will be: |
| A. | Overdamped |
| B. | Underdamped |
| C. | Undamped |
| D. | Critically damped |
| Answer» E. | |
| 13. |
The system with the open loop transfer function 1/s(1+s) is: |
| A. | Type 2 and order 1 |
| B. | Type 1 and order 1 |
| C. | Type 0 and order 0 |
| D. | Type 1 and order 2 |
| Answer» E. | |