AllInfoHub – MCQ Practice

Signals and Systems – Multiple Choice Questions (MCQs)

25. The step response of an LTI system is the convolution of the input step with the system's:
- A. Impulse response
- B. Output
- C. Input
- D. Frequency response
26. The Fourier Transform of a real and odd signal is:
- A. Purely real and even
- B. Purely imaginary and odd
- C. Purely real and odd
- D. Purely imaginary and even
27. The Fourier Transform of a real and even signal is:
- A. Purely real and even
- B. Purely imaginary and odd
- C. Purely real and odd
- D. Purely imaginary and even
28. Parseval's theorem relates energy in the time domain to energy in the:
- A. Frequency domain
- B. Laplace domain
- C. Z-domain
- D. Time domain
29. The sampling theorem states that a continuous-time signal can be perfectly reconstructed from its samples if the sampling frequency fs is:
- A. fs < 2fmax
- B. fs = 2fmax
- C. fs > 2fmax
- D. fs ≤ 2fmax
30. Aliasing occurs when the sampling frequency is:
- A. Greater than Nyquist rate
- B. Less than Nyquist rate
- C. Equal to Nyquist rate
- D. Zero
31. The inverse Laplace Transform of 1/(s+a) is:
- A. e^at
- B. e^-at
- C. u(t)
- D. δ(t)
32. The convolution property of Laplace Transform states that convolution in time domain is equivalent to ________ in s-domain.
- A. Addition
- B. Subtraction
- C. Multiplication
- D. Division
33. The inverse Z-Transform of z/(z-a) is:
- A. a^n u[n]
- B. a^n u[-n-1]
- C. (-a)^n u[n]
- D. (-a)^n u[-n-1]
34. The ROC for a two-sided sequence (non-causal and non-anticausal) is typically an:
- A. Annulus
- B. Circle
- C. Line
- D. Point
35. A system described by y(t) = x(t-2) is a:
- A. Static system
- B. Dynamic system
- C. Non-linear system
- D. Non-causal system
36. A system described by y(t) = x(t) + x(t-1) is a:
- A. Memoryless system
- B. System with memory
- C. Non-linear system
- D. Non-causal system

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Signals and Systems – Multiple Choice Questions (MCQs)

25. The step response of an LTI system is the convolution of the input step with the system's:

26. The Fourier Transform of a real and odd signal is:

27. The Fourier Transform of a real and even signal is:

28. Parseval's theorem relates energy in the time domain to energy in the:

29. The sampling theorem states that a continuous-time signal can be perfectly reconstructed from its samples if the sampling frequency fs is:

30. Aliasing occurs when the sampling frequency is:

31. The inverse Laplace Transform of 1/(s+a) is:

32. The convolution property of Laplace Transform states that convolution in time domain is equivalent to ________ in s-domain.

33. The inverse Z-Transform of z/(z-a) is:

34. The ROC for a two-sided sequence (non-causal and non-anticausal) is typically an:

35. A system described by y(t) = x(t-2) is a:

36. A system described by y(t) = x(t) + x(t-1) is a:

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