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Automatic Control Systems problems

  • 1. For the transport lag G(j?) = e-j?T, the magnitude is always equal to

  • Options
  • A. 0
  • B. 1
  • C. 10
  • D. 0.5
    • Discuss
  • 2. A negative feedback system has Electronics and Communication Engineering Automatic Control Systems: A negative feedback system has. The closed loop system is stable for

  • Options
  • A. K > 20
  • B. 15 < K < 19
  • C. 8 ? K ? 14
  • D. K < 6
    • Discuss
  • 3. For the system of the given figure the transfer function Electronics and Communication Engineering Automatic Control Systems: For the system of the given figure the transfer function=
    Electronics and Communication Engineering Automatic Control Systems: For the system of the given figure the transfer function

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 4. Stepper motors find applications in

  • Options
  • A. X-Y plotters
  • B. numerically controlled machining equipment
  • C. printers
  • D. all of the above
    • Discuss
  • 5. The log magnitude curve for a constant gain K is a

  • Options
  • A. horizontal straight line
  • B. horizontal straight line of magnitude 20 log K decibels
  • C. an inclined line having slope K
  • D. an inclined line having slope -K
    • Discuss
  • 6. For the system in the given figure, Electronics and Communication Engineering Automatic Control Systems: For the system in the given figure,
    Electronics and Communication Engineering Automatic Control Systems: For the system in the given figure,

  • Options
  • A.
  • B.
  • C.
  • D. none of the above
    • Discuss
  • 7. In an integral controller

  • Options
  • A. the output is proportional to input
  • B. the rate of change of output is proportional to input
  • C. the output is proportional to rate of change of input
  • D. none of the above
    • Discuss
  • 8. For the system of the given figure the transfer function is
    Electronics and Communication Engineering Automatic Control Systems: For the system of the given figure the transfer function is

  • Options
  • A.
  • B.
  • C.
  • D.
    • Discuss
  • 9. Whether a linear system is stable or unstable that it

  • Options
  • A. is a property of the system only
  • B. depends on the input function only
  • C. both (a) and (b)
  • D. either (a) or (b)
    • Discuss
  • 10. For very low frequencies, v0/vi in the given figure equals
    Electronics and Communication Engineering Automatic Control Systems: For very low frequencies, v0/vi in the given figure equals

  • Options
  • A. 1
  • B. 0
  • C. ?
  • D. 0.5
    • Discuss

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