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 period of the signal when it is time shifted? |
| A. | Changes according to the situation |
| B. | Different in different situation |
| C. | Remains the same |
| D. | Takes the shifted value |
| Answer» D. Takes the shifted value | |
| 2. |
Why does the signal change while time scaling? |
| A. | Because the frequency changes |
| B. | Time changes |
| C. | Length changes |
| D. | Both frequency and time changes |
| Answer» B. Time changes | |
| 3. |
It does not depend whether the signal is odd or even, it is always reversal of the corresponding sequence of fourier series. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
What is the time reversal property of fourier series coefficients? |
| A. | Time reversal of the corresponding sequence of fourier series |
| B. | Time reversal of the last term of fourier series |
| C. | Time reversal of the corresponding term of fourier series |
| D. | Time reversal of the corresponding sequence |
| Answer» B. Time reversal of the last term of fourier series | |
| 5. |
What is the frequency shifting property of continuous time fourier series? |
| A. | Multiplication in the time domain by a real sinusoid |
| B. | Multiplication in the time domain by a complex sinusoid |
| C. | Multiplication in the time domain by a sinusoid |
| D. | Addition in the time domain by a complex sinusoid |
| Answer» C. Multiplication in the time domain by a sinusoid | |
| 6. |
How is time shifting represented in case of periodic signal? |
| A. | If x(t) is shifted to t0, Xn is shifted to t0 |
| B. | x(t-t0), Yn = Xn e-njwt0 |
| C. | Xn = x(t-t0), Yn = Xn e-njwt0 |
| D. | Xn = x(-t0), Yn = Xn e-njwt0 |
| Answer» D. Xn = x(-t0), Yn = Xn e-njwt0 | |
| 7. |
If x(t) and y(t) are two periodic signals with coefficients Xn and Yn then the linearity is represented as? |
| A. | ax(t) + by(t) = aXn + bYn |
| B. | ax (t) + by(t) = Xn + bYn |
| C. | ax(t) + by(t) = aXn + Yn |
| D. | ax(t) + by(t) = Xn + Yn |
| Answer» B. ax (t) + by(t) = Xn + bYn | |
| 8. |
Integration and conjugation are also followed by continuous time fourier series? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
What are the properties of continuous time fourier series? |
| A. | Linearity, time shifting |
| B. | Linearity, time shifting, frequency shifting |
| C. | Linearity, time shifting, frequency shifting, time reversal, time scaling, periodic convolution |
| D. | Linearity, time shifting, frequency shifting, time reversal, time scaling, periodic convolution, multiplication, differentiation |
| Answer» E. | |
| 10. |
How do we represent a pairing of a periodic signal with its fourier series coefficients in case of continuous time fourier series? |
| A. | x(t) ↔ Xn |
| B. | x(t) ↔ Xn+1 |
| C. | x(t) ↔ X |
| D. | x(n) ↔ Xn |
| Answer» B. x(t) ↔ Xn+1 | |