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Total Questions : 604 | Page 61 of 61 pages
Question 601. 0.  A Hilbert transformer is a
  1.    non-linear system
  2.    non-causal system
  3.    time-varying system
  4.    low-pass system
 Discuss Question
Answer: Option A. -> non-linear system
Question 602. 1.  The transfer function of a plant is T(s) 5 . The second-order (s+5)(s2 +s+1) approximation of T(s) using dominant pole concept is `(a) (s+ 5)(s + I)
  1.    (s +5)(s + I)
  2.    (c) S2+s+1
  3.    s2-1-S-4-1
 Discuss Question
Answer: Option C. -> s2-1-S-4-1
Question 603. 3.  A unity feedback control system has an open-loop transfer function
  1.    5
  2.    5.5
  3.    1
  4.    10
 Discuss Question
Answer: Option D. -> 10
Question 604. 4. G(s) ?(s + 1) (s ? 7)For K> 6, the stability characteristic of the open-loop and closed-loop configuration of the system are respectively
  1.    stable and stable
  2.    unstable and stable
  3.    stable and unstable
  4.    unstable and unstable
 Discuss Question
Answer: Option D. -> unstable and unstable

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