MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
DEFINING_U(T),_R(T)_AND_S(T)_IN_THEIR_STANDARD_WAYS,_ARE_THEIR_DERIVATIVES_DEFINED_AT_T_=_0??$ |
| A. | Yes, Yes, No |
| B. | No, Yes, No |
| C. | No, No, Yes |
| D. | No, No, No |
| Answer» E. | |
| 2. |
The range for unit step function for u(t – a), is ________$# |
| A. | t < a |
| B. | t ≤ a |
| C. | t = a |
| D. | t ‚â• a |
| Answer» E. | |
| 3. |
Which_is_the_correct_Euler_expression?$ |
| A. | exp(2jt) = cos(2t) + jsin(t) |
| B. | exp(2jt) = cos(2t) + jsin(2t) |
| C. | exp(2jt) = cos(2t) + sin(t) |
| D. | exp(2jt) = jcos(2t) + jsin(t) |
| Answer» C. exp(2jt) = cos(2t) + sin(t) | |
| 4. |
When is a complex exponential signal pure DC? |
| A. | σ = 0 and Ω < 0 |
| B. | σ < 0 and Ω = 0 |
| C. | σ = 0 and Ω = 0 |
| D. | σ < 0 and Ω < 0 |
| Answer» D. ‚âà√¨‚àö√¢ < 0 and ‚âà√≠¬¨¬© < 0 | |
| 5. |
Unit Impulse function is obtained by using the limiting process on which among the following functions? |
| A. | Triangular Function |
| B. | Rectangular Function |
| C. | Signum Function |
| D. | Sinc Function |
| Answer» C. Signum Function | |
| 6. |
Which_one_of_the_following_is_not_a_ramp_function? |
| A. | r(t) = t when t ‚â• 0 |
| B. | r(t) = 0 when t < 0 |
| C. | r(t) = ‚à´u(t)dt when t < 0 |
| D. | r(t) = <sup>du(t)</sup>‚ÅÑ<sub>dt</sub> |
| Answer» E. | |
| 7. |
Compute d[n]d[n-1] + d[n-1]d[n-2] for n = 0, 1, 2? |
| A. | 0, 1, 2 |
| B. | 0, 0, 1 |
| C. | 1, 0, 0 |
| D. | 0, 0, 0 |
| Answer» E. | |
| 8. |
Find the value of {sum from -inf to inf} exp(jwn)*d[n]. |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 9. |
Find the magnitude of exp(jwt). Find the boundness of sin(t) and cos(t). |
| A. | 1, [-1,2], [-1,2] |
| B. | 0.5, [-1,1], [-1,1] |
| C. | 1, [-1,1], [-1,2] |
| D. | 1, [-1,1], [-1,1] |
| Answer» E. | |
| 10. |
The fundamental period of exp(jwt) is |
| A. | pi/w |
| B. | 2pi/w |
| C. | 3pi/w |
| D. | 4pi/w |
| Answer» C. 3pi/w | |
| 11. |
Evaluate the following function in terms of t: {integral from 0 to t}{Integral from -inf to inf}d(t) |
| A. | <sup>1</sup>‚ÅÑ<sub>t</sub> |
| B. | <sup>1</sup>‚ÅÑ<sub>t<sup>2</sup></sub> |
| C. | t |
| D. | t<sup>2</sup> |
| Answer» D. t<sup>2</sup> | |
| 12. |
Evaluate the following function in terms of t: {sum from -1 to infinity:d[n]}/{Integral from 0 to t: u(t)} |
| A. | t |
| B. | <sup>1</sup>‚ÅÑ<sub>t</sub> |
| C. | t<sup>2</sup> |
| D. | <sup>1</sup>‚ÅÑ<sub>t<sup>2</sup></sub> |
| Answer» C. t<sup>2</sup> | |
| 13. |
What is the value of u[1], where u[n] is the unit step function? |
| A. | 1 |
| B. | 0.5 |
| C. | 0 |
| D. | -1 |
| Answer» B. 0.5 | |
| 14. |
What is the value of d[0], such that d[n] is the unit impulse function? |
| A. | 0 |
| B. | 0.5 |
| C. | 1.5 |
| D. | 1 |
| Answer» E. | |