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. |
IN_WHICH_OF_THE_FOLLOWING_USEFUL_SIGNALS,_IS_THE_BILATERAL_LAPLACE_TRANSFORM_DIFFERENT_FROM_THE_UNILATERAL_LAPLACE_TRANSFORM??$ |
| A. | d(t) |
| B. | s(t) |
| C. | u(t) |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 2. |
What_is_the_relation_between_the_unit_impulse_function_and_the_unit_ramp_function?$ |
| A. | r = dd(t)/dt |
| B. | d = dr/dt |
| C. | d = d<sup>2</sup>(r)/dt<sup>2</sup> |
| D. | r = d<sup>2</sup>(d)/dt<sup>2</sup> |
| Answer» D. r = d<sup>2</sup>(d)/dt<sup>2</sup> | |
| 3. |
How is the continuous time impulse function defined in terms of the step function? |
| A. | u(t) = d(d(t))/dt |
| B. | u(t) = d(t) |
| C. | d(t) = du/dt |
| D. | d(t) = u<sup>2</sup>(t) |
| Answer» D. d(t) = u<sup>2</sup>(t) | |
| 4. |
Where h*x denotes h convolved with x, find the value of d[n]*d[n-1]. |
| A. | d[n]. |
| B. | d[n-1]. |
| C. | d<sup>2</sup>[n]. |
| D. | d<sup>2</sup>[n-1]. |
| Answer» C. d<sup>2</sup>[n]. | |
| 5. |
Where h*x denotes h convolved with x, x[n]*d[n-90] reduces to |
| A. | x[n-89]. |
| B. | x[n-91]. |
| C. | x[n=90]. |
| D. | x[n]. |
| Answer» D. x[n]. | |
| 6. |
Find the value of 2sgn(0)d[0] + d[1] + d[45], where sgn(x) is the signum function. |
| A. | 2 |
| B. | -2 |
| C. | 1 |
| D. | 0 |
| Answer» E. | |
| 7. |
The convolution of a discrete time system with a delta function gives |
| A. | the square of the system |
| B. | the system itself |
| C. | the derivative of the system |
| D. | the integral of the system |
| Answer» C. the derivative of the system | |
| 8. |
Is it practically possible for us to provide a perfect impulse to a system? |
| A. | Certainly possible |
| B. | Impossible |
| C. | Possible |
| D. | None of the mentioned |
| Answer» C. Possible | |
| 9. |
What is the definition of the delta function in time space intuitively? |
| A. | Defines that there is a point 1 at t=0, and zero everywhere else |
| B. | Defines that there is a point 0 at t=0, and 1 everywhere else |
| C. | Defines 1 for all t > 0, and 0 else |
| D. | Defines an impulse of area 1 at t=0, zero everywhere else |
| Answer» E. | |
| 10. |
How is the discrete time impulse function defined in terms of the step function? |
| A. | d[n] = u[n+1] – u[n]. |
| B. | d[n] = u[n] – u[n-2]. |
| C. | d[n] = u[n] – u[n-1]. |
| D. | d[n] = u[n+1] – u[n-1]. |
| Answer» D. d[n] = u[n+1] ‚Äö√Ñ√∂‚àö√ë‚àö¬® u[n-1]. | |