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This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Digital Signal Processing knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If a system do not have a bounded output for bounded input, then the system is said to be __________ |
| A. | Causal |
| B. | Non-causal |
| C. | Stable |
| D. | Non-stable |
| Answer» E. | |
| 2. |
The system described by the input-output equations y(n)=x(-n) is a causal system. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
If the output of the system of the system at any ‘n’ depends only the present or the past values of the inputs then the system is said to be __________ |
| A. | Linear |
| B. | Non-Linear |
| C. | Causal |
| D. | Non-causal |
| Answer» D. Non-causal | |
| 4. |
The system described by the input-output equations y(n)=x2(n) is a Non-linear system. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Whether the system described by the input-output equations y(n)=x(n)-x(n-1) a Time-variant system. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
The system described by the input-output equation y(n)=nx(n)+bx3(n) is a __________ |
| A. | Static system |
| B. | Dynamic system |
| C. | Identical system |
| D. | None of the mentioned |
| Answer» B. Dynamic system | |
| 7. |
The output signal when a signal x(n)=(0,1,2,3) is processed through an ‘Delay’ system is? |
| A. | (3,2,1,0) |
| B. | (1,2,3,0) |
| C. | (0,1,2,3) |
| D. | None of the mentioned |
| Answer» C. (0,1,2,3) | |
| 8. |
The block denoted as follows is known as __________ |
| A. | Delay block |
| B. | Advance block |
| C. | Multiplier block |
| D. | Adder block |
| Answer» B. Advance block | |
| 9. |
If the output of the system is \(y(n)=\sum_{k=-\infty}^nx(y)\) with an input of x(n) then the system will work as ___________ |
| A. | Accumulator |
| B. | Adder |
| C. | Subtractor |
| D. | Multiplier |
| Answer» B. Adder | |
| 10. |
If a signal x(n) is passed through a system to get an output signal of y(n)=x(n+1), then the signal is said to be ____________ |
| A. | Delayed |
| B. | Advanced |
| C. | No operation |
| D. | None of the mentioned |
| Answer» E. | |
| 11. |
The output signal when a signal x(n)=(0,1,2,3) is processed through an ‘Identical’ system is? |
| A. | (3,2,1,0) |
| B. | (1,2,3,0) |
| C. | (0,1,2,3) |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 12. |
IF_THE_OUTPUT_OF_THE_SYSTEM_OF_THE_SYSTEM_AT_ANY_‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚Àւ§N‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_DEPENDS_ONLY_THE_PRESENT_OR_THE_PAST_VALUES_OF_THE_INPUTS_THEN_THE_SYSTEM_IS_SAID_TO_BE:?$# |
| A. | Linear |
| B. | Non-Linear |
| C. | Causal |
| D. | Non-causal |
| Answer» D. Non-causal | |
| 13. |
If a system do not have a bounded output for bounded input, then the system is said to be:$ |
| A. | Causal |
| B. | Non-causal |
| C. | Stable |
| D. | Non-stable |
| Answer» E. | |
| 14. |
The system described by the input-output equations y(n)=x(-n) is a causal system.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 15. |
The system described by the input-output equations y(n)=x2(n) is a Non-linear system? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 16. |
Whether the system described by the input-output equations y(n)=x(n)-x(n-1) a Time-variant system? |
| A. | True |
| B. | False |
| Answer» C. | |
| 17. |
The system described by the input-output equation y(n)=nx(n)+bx3(n) is a: |
| A. | Static system |
| B. | Dynamic system |
| C. | Identical system |
| D. | None of the mentioned |
| Answer» B. Dynamic system | |
| 18. |
The output signal when a signal x(n)=(0,1,2,3) is processed through an ‘Delay’ system is:$ |
| A. | (3,2,1,0) |
| B. | (1,2,3,0) |
| C. | (0,1,2,3) |
| D. | None of the mentioned |
| Answer» C. (0,1,2,3) | |
| 19. |
What is the output y(n) when a signal x(n)=n*u(n)is passed through a accumulator system under the conditions that it is initially relaxed? |
| A. | (n<sup>2</sup>+n+1)/2 |
| B. | (n(n+1))/2 |
| C. | (n<sup>2</sup>+n+2)/2 |
| D. | None of the mentioned |
| Answer» C. (n<sup>2</sup>+n+2)/2 | |
| 20. |
If a signal x(n) is passed through a system to get an output signal of y(n)=x(n+1), then the signal is said to be: |
| A. | Delayed |
| B. | Advanced |
| C. | No operation |
| D. | None of the mentioned |
| Answer» E. | |
| 21. |
The output signal when a signal x(n)=(0,1,2,3) is processed through an ‘Identical’ system is: |
| A. | (3,2,1,0) |
| B. | (1,2,3,0) |
| C. | (0,1,2,3) |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |