Sample questions
You've seen the pattern — here are a few of the actual PYQs.
ESE2024
The continuous-time signal f(t) = e^(−2αt), where ω is a real constant, is sampled when t ≥ 0 at intervals T. What is the z transform of the resulting sequence of samples?
- A z/(z − e^(−2αT)) ✓
- B z/(1 − e^(−2αT))
- C z/(z − e^(−αT))
- D z/(z − e^(−20αT))
✓ Correct answer: (A)
Engineering › Engineering Mathematics & General
ESE2024
If (z) = z/(z² − z + 1), then the inverse z transform of Y(z) is
- A √(1/3) sin (1/3) kπ
- B 2√(1/3) sin (1/3) kπ ✓
- C 2√(1/3) cos (1/3) kπ
- D 2√(1/3) sin kπ
✓ Correct answer: (B)
Engineering › Engineering Mathematics & General
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