MCQOPTIONS
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MCQOPTIONS
This section includes 16 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. |
If the initial conditions for a system are inherently zero, what does it physically mean? |
| A. | The system is at rest but stores energy |
| B. | The system is working but does not store energy |
| C. | The system is at rest or no energy is stored in any of its part |
| D. | The system is working with zero reference input |
| Answer» D. The system is working with zero reference input | |
| 2. |
When deriving the transfer function of a linear element |
| A. | Both initial conditions and loading are taken into account |
| B. | Initial conditions are taken into account but the element is assumed to be not loaded |
| C. | Initial conditions are assumed to be zero but loading is taken into account |
| D. | Initial conditions are assumed to be zero and the element is assumed to be not loaded |
| Answer» D. Initial conditions are assumed to be zero and the element is assumed to be not loaded | |
| 3. |
A transfer function has two zeroes at infinity. Then the relation between the numerator(N) and the denominator degree(M) of the transfer function is: |
| A. | N=M+2 |
| B. | N=M-2 |
| C. | N=M+1 |
| D. | N=M-1 |
| Answer» C. N=M+1 | |
| 4. |
A control system whose step response is -0.5(1+e-2t) is cascaded to another control block whose impulse response is e-t. What is the transfer function of the cascaded combination? |
| A. | 1/(s+2)(s+1) |
| B. | 1/(s+1)s |
| C. | 1/(s+3) |
| D. | 0.5/(s+1)(s+2) |
| Answer» B. 1/(s+1)s | |
| 5. |
A linear system at rest is subject to an input signal r(t)=1-e-t. The response of the system for t>0 is given by c(t)=1-e-2t. The transfer function of the system is: |
| A. | (s+2)/(s+1) |
| B. | (s+1)/(s+2) |
| C. | 2(s+1)/(s+2) |
| D. | (s+1)/2(s+2) |
| Answer» D. (s+1)/2(s+2) | |
| 6. |
The principle of homogeneity and superposition are applied to: |
| A. | Linear time invariant systems |
| B. | Nonlinear time invariant systems |
| C. | Linear time variant systems |
| D. | Nonlinear time invariant systems |
| Answer» D. Nonlinear time invariant systems | |
| 7. |
IF_THE_INITIAL_CONDITIONS_FOR_A_SYSTEM_ARE_INHERENTLY_ZERO,_WHAT_DOES_IT_PHYSICALLY_MEAN??$ |
| A. | The system is at rest but stores energy |
| B. | The system is working but does not store energy |
| C. | The system is at rest or no energy is stored in any of its part |
| D. | The system is working with zero reference input |
| Answer» D. The system is working with zero reference input | |
| 8. |
When deriving the transfer function of a linear elemen? |
| A. | Both initial conditions and loading are taken into account |
| B. | Initial conditions are taken into account but the element is assumed to be not loaded |
| C. | Initial conditions are assumed to be zero but loading is taken into account |
| D. | Initial conditions are assumed to be zero and the element is assumed to be not loaded |
| Answer» D. Initial conditions are assumed to be zero and the element is assumed to be not loaded | |
| 9. |
A transfer function has two zeroes at infinity. Then the relation between the numerator(N) and the denominator degree(M) of the transfer function is? |
| A. | N=M+2 |
| B. | N=M-2 |
| C. | N=M+1 |
| D. | N=M-1 |
| Answer» C. N=M+1 | |
| 10. |
A control system whose step response is -0.5(1+e-2t) is cascaded to another control block whose impulse response is e-t. What is the transfer function of the cascaded combination? |
| A. | 1/(s+2)(s+1) |
| B. | 1/(s+1)s |
| C. | 1/(s+3) |
| D. | 0.5/(s+1)(s+2) |
| Answer» B. 1/(s+1)s | |
| 11. |
In regenerating the feedback, the transfer function is given by |
| A. | C(s)/R(s)=G(s)/1+G(s)H(s) |
| B. | C(s)/R(s)=G(s)H(s)/1-G(s)H(s) |
| C. | C(s)/R(s)=G(s)/1+G(s)H(s) |
| D. | C(s)/R(s)=G(s)/1-G(s)H(s) |
| Answer» E. | |
| 12. |
A linear system at rest is subject to an input signal r(t)=1-e-t. The response of the system for t>0 is given by c(t)=1-e-2t. The transfer function of the system is: |
| A. | (s+2)/(s+1) |
| B. | (s+1)/(s+2) |
| C. | 2(s+1)/(s+2) |
| D. | (s+1)/2(s+2) |
| Answer» D. (s+1)/2(s+2) | |
| 13. |
In continuous data systems: |
| A. | Data may be continuous function of time at all points in the system |
| B. | Data is necessarily a continuous function of time at all points in the system |
| C. | Data is continuous at the inputs and output parts of the system but not necessarily during intermediate processing of the data |
| D. | Only the reference signal is continuous function of time |
| Answer» C. Data is continuous at the inputs and output parts of the system but not necessarily during intermediate processing of the data | |
| 14. |
The principle of homogeneity and superposition are applied to: |
| A. | Linear time invariant systems |
| B. | Nonlinear time invariant systems |
| C. | Linear time variant systems |
| D. | Nonlinear time invariant systems |
| Answer» D. Nonlinear time invariant systems | |
| 15. |
The output of the feedback control system must be a function of: |
| A. | Reference input |
| B. | Reference output |
| C. | Output and feedback signal |
| D. | Input and feedback signal |
| Answer» E. | |
| 16. |
Which of the following is not the feature of modern control system? |
| A. | Quick response |
| B. | Accuracy |
| C. | Correct power level |
| D. | No oscillation |
| Answer» E. | |