MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Signals & Systems knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Determine the value of the summation: n= - (n+3)(n2+n). |
| A. | 3 |
| B. | 6 |
| C. | 9 |
| D. | 12 |
| Answer» C. 9 | |
| 2. |
Determine the value of the summation: n= - (n-1)sin2n. |
| A. | 1 |
| B. | 0 |
| C. | sin2 |
| D. | sin4 |
| Answer» D. sin4 | |
| 3. |
Determine the discrete-time signal: x(n)=1 for n 0 and x(n)=0 for n<0 |
| A. | Unit ramp sequence |
| B. | Unit impulse sequence |
| C. | Exponential sequence |
| D. | Unit step sequence |
| Answer» E. | |
| 4. |
Discrete-time signals are _________________ |
| A. | Continuous in amplitude and continuous in time |
| B. | Continuous in amplitude and discrete in time |
| C. | Discrete in amplitude and discrete in time |
| D. | Discrete in amplitude and continuous in time |
| Answer» C. Discrete in amplitude and discrete in time | |
| 5. |
We define y[n] = nx[n] (n-1)x[n]. Now, z[n] = z[n-1] + y[n]. Is z[n] a causal system? |
| A. | No |
| B. | Yes |
| Answer» C. | |
| 6. |
We define y[n] = nx[n] (n-1)x[n]. Now, z[n] = z[n-1] + y[n], is z[n] stable? |
| A. | Yes |
| B. | No |
| Answer» B. No | |
| 7. |
Is the function y[n] = x[n-1] x[n-56] causal? |
| A. | The system is non causal |
| B. | The system is causal |
| C. | Both causal and non causal |
| D. | None of the mentioned |
| Answer» C. Both causal and non causal | |
| 8. |
Is the function y[n] = x[n-1] x[n-4] memoryless? |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Is the function y[n] = sin(x[n]) periodic or not? |
| A. | True |
| B. | False |
| Answer» C. | |