MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
WHAT_IS_THE_COMMUTATIVE_PROPERTY??$ |
| A. | x(n)*h(n)=h(n)*x(n) |
| B. | x(n)+h(n)=h(n)+x(n) |
| C. | x(n)**h(n)=h(n)**x(n) |
| D. | x(n)h(n)=h(n)x(n) |
| Answer» B. x(n)+h(n)=h(n)+x(n) | |
| 2. |
What_is_the_associative_property_of_discrete_time_convolution?$ |
| A. | [x<sub>1</sub>(n) * x<sub>2</sub>(n)]*h(n) = x<sub>1</sub>(n)* [x<sub>2</sub>(n)*h(n)] |
| B. | [x<sub>1</sub>(n) * x<sub>2</sub>(n)]+h(n) = x<sub>1</sub>(n) + [x<sub>2</sub>(n)*h(n)] |
| C. | [x<sub>1</sub>(n) + x<sub>2</sub>(n)]*h(n) = x<sub>1</sub>(n)* [x<sub>2</sub>(n)+h(n)] |
| D. | [x<sub>1</sub>(n) * x<sub>2</sub>(n)]h(n) = x<sub>1</sub>(n) [x<sub>2</sub>(n)*h(n)] |
| Answer» B. [x<sub>1</sub>(n) * x<sub>2</sub>(n)]+h(n) = x<sub>1</sub>(n) + [x<sub>2</sub>(n)*h(n)] | |
| 3. |
What is the convolution of a signal with an impulse? |
| A. | Signal itself |
| B. | Impulse |
| C. | A new signal |
| D. | Signal multiplied by impulse |
| Answer» B. Impulse | |
| 4. |
Choose the properties which are followed by a discrete time convolution? |
| A. | Associative, commutative, distributive |
| B. | Associative |
| C. | Commutative and distributive |
| D. | Distributive and associative |
| Answer» B. Associative | |
| 5. |
What is the convolution of x[n]=e-n2 and h[n]=n2? |
| A. | 5.318n<sup>2</sup> + .123 |
| B. | 6.318n<sup>2</sup> + .123 |
| C. | 5.318n+.88 |
| D. | 5.318n<sup>2</sup>+.8846 |
| Answer» E. | |
| 6. |
What is a convolution sum? |
| A. | ‚àëx[k]h[n-k], k from -‚àû to +‚àû |
| B. | ‚àëx[k]*‚àëh[n-k], k from -‚àû to +‚àû |
| C. | ‚àëx[k]+‚àëh[n-k], k from -‚àû to +‚àû |
| D. | ‚àë‚àëx[k]h[n-k], k from -‚àû to +‚àû |
| Answer» B. ‚Äö√Ñ√∂‚àö‚Ć‚àö¬¥x[k]*‚Äö√Ñ√∂‚àö‚Ć‚àö¬¥h[n-k], k from -‚Äö√Ñ√∂‚àö‚Ć‚àö¬™ to +‚Äö√Ñ√∂‚àö‚Ć‚àö¬™ | |
| 7. |
Choose the correct equation for finding the output of a discrete time convolution? |
| A. | y[n] = ‚àëx[k]h[n-k], k from 0 to ‚àû |
| B. | y[n] = ‚àëx[k]h[n-k], k from -‚àû to +‚àû |
| C. | y[n] = ‚àëx[k]h[k], k from 0 to ‚àû |
| D. | y[n] = ‚àëx[k]h[n], k from -‚àû to +‚àû |
| Answer» C. y[n] = ‚Äö√Ñ√∂‚àö‚Ć‚àö¬¥x[k]h[k], k from 0 to ‚Äö√Ñ√∂‚àö‚Ć‚àö¬™ | |
| 8. |
What are the tools used in a graphical method of finding convolution of discrete time signals? |
| A. | Plotting, shifting, folding, multiplication, and addition in order |
| B. | Scaling, shifting, multiplication, and addition in order |
| C. | Scaling, multiplication and addition in order |
| D. | Scaling, plotting, shifting, multiplication and addition in order |
| Answer» B. Scaling, shifting, multiplication, and addition in order | |
| 9. |
How is discrete time convolution represented? |
| A. | x[n] + h[n] |
| B. | x[n] – h[n] |
| C. | x[n] * h[n] |
| D. | x[n] + h[n] |
| Answer» D. x[n] + h[n] | |
| 10. |
Is discrete time convolution possible? |
| A. | True |
| B. | False |
| Answer» B. False | |