MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Signals & Systems Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The Nyquist frequency for the signal x (t) = 3 cos 50πt + 10 sin 300πt – cos 100t is ___________ |
| A. | 50 Hz |
| B. | 100 Hz |
| C. | 200 Hz |
| D. | 300 Hz |
| Answer» E. | |
| 2. |
F(t) and G(t) are the one-sided z-transforms of discrete time functions f(nt) and g(nt), the z-transform of ∑f(kt)g(nt-kt) is given by _____________ |
| A. | ∑f(nt)g(nt)z-n |
| B. | ∑f(nt)g(nt)zn |
| C. | ∑f(kt)g(nt-kt) z-n |
| D. | ∑f(nt-kt)g(nt)z-n |
| Answer» B. ∑f(nt)g(nt)zn | |
| 3. |
What is the steady state value of The DT signal F (t), if it is known that F(s) = \(\frac{1}{(s+2)^2 (s+4)}\)? |
| A. | \(\frac{1}{16}\) |
| B. | Cannot be determined |
| C. | 0 |
| D. | \(\frac{1}{8}\) |
| Answer» D. \(\frac{1}{8}\) | |
| 4. |
A discrete time signal is given as X [n] = cos \(\frac{πn}{9}\) + sin (\(\frac{πn}{7} + \frac{1}{2}\)). The period of the signal X [n] is ______________ |
| A. | 126 |
| B. | 32 |
| C. | 252 |
| D. | Non-periodic |
| Answer» B. 32 | |
| 5. |
Given a discrete time signal x[k] defined by x[k] = 1, for -2≤k≤2 and 0, for |k|>2. Then, y[k] = x[3k-2] is ______________ |
| A. | y[k] = 1, for k = 0, 1 and 0 otherwise |
| B. | y[k] = 1, for k = 1 and -1 for k=-1 |
| C. | y[k] = 1, for k = 0, 1 and -1 otherwise |
| D. | y[k] = 1, for k = 0, 1 and 0 otherwise |
| Answer» B. y[k] = 1, for k = 1 and -1 for k=-1 | |