Exercise :: Exam Questions Papers - Exam Paper 1
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26. | Consider the signal flow graph shown in figure below. The gain |
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Answer: Option C Explanation: P1 = abcd L1 = be, L2 = cf, L3 = dg Δ1 = 1
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27. | During transmission over a communicate channel, bit errors occur independently with probability |
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Answer: Option D Explanation: Probability of no-error + probability one error
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28. | If x1[n] |
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Answer: Option A Explanation: R1 ∩ R2, Suppose R1 for x1(n) be Then ROC for x1(n) + x2(n) R1 ∩ R2 (R1 < R2) Then ROC for x1(n) + x2(n) R1 ∩ R2(R1 < R2) |
29. | Consider a unity feedback control system with open-loop transfer function |
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Answer: Option A Explanation:
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30. | The analog signal given below is sampled at 1200 samples per second. m(t) = 2 sin 120 pt + 3 sin 240 pt + 4 sin 360 pt + 5 sin 480 pt + 6 sin 600 pt + 7 sin 720 pt. The folding (maximum) frequency is __________ . |
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Answer: Option C Explanation: Folding frequency (max.) = |