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  • Question

  • In the given figure shows pole-zero plot. If steady state gain is 2 the transfer function G(s) is
    In the given figure shows pole-zero plot. If steady state gain is 2 the transfer function G(s) is Th


  • Options
  • A. In the given figure shows pole-zero plot. If steady state gain is 2 the transfer function G(s) is Th
  • B. In the given figure shows pole-zero plot. If steady state gain is 2 the transfer function G(s) is Th
  • C. In the given figure shows pole-zero plot. If steady state gain is 2 the transfer function G(s) is Th
  • D. In the given figure shows pole-zero plot. If steady state gain is 2 the transfer function G(s) is Th

  • Correct Answer
  •  

    Explanation
    The zero at - 1 gives the term (s + 1) in the numerator.

    The poles at (- 2 + j1) and (- 2 - j1) give (s2 + 4s + 5) term is the denominator. Gain is 2.

    Automatic Control Systems problems

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    • 1. Bellows converts

    • Options
    • A. pressure difference into displacement
    • B. pressure difference into voltage
    • C. displacement into pressure difference
    • D. either (a) or (c)
      • Discuss
    • 2. For type 2 system, the magnitude and phase angle of the term (j?)2 in the denominator, at ? = 0, are respectively

    • Options
    • A. 0 and - 90°
    • B. 0 and + 90°
    • C. infinity and - 180°
    • D. infinity and + 180°
      • Discuss
    • 3. A system has its two poles on the negative real axis and one pair of poles lies on j? axis. The system is

    • Options
    • A. stable
    • B. unstable
    • C. limitedly stable
    • D. either (a) or (c)
      • Discuss
    • 4. For the system of the given figure, the damping ratio of closed loop poles is

    • Options
    • A. 1.5
    • B. 1
    • C. 0.5
    • D. 0.25
      • Discuss
    • 5. In a two phase ac servomotor rotor resistance is R and rotor reactance is X. The speed curve will be linear if

    • Options
    • A.
    • B.
    • C.
    • D. X2 = R
      • Discuss
    • 6. In the given figure the input frequency is such that R << Xc, then

    • Options
    • A. v0 lags vi by 90°
    • B. v0 leads vi by 90°
    • C. v0 and vi are in phase
    • D. either (b) or (c)
      • Discuss
    • 7. If error voltage is e(t), integral square error =

    • Options
    • A. e2(t) dt
    • B.
    • C.
    • D. none of the above
      • Discuss
    • 8. In Bode diagram (log magnitude plot) the factor in the transfer function gives a line having slope

    • Options
    • A. -20 dB per octave
    • B. -10 dB per octave
    • C. -6 dB per octave
    • D. -2 dB per octave
      • Discuss
    • 9. For the given figure,

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. For the given figure C(s)/R(s)

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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