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  • Question

  • From the noise point of view, bandwidth should


  • Options
  • A. be large
  • B. not be too large
  • C. should be as large as possible
  • D. should be infinite

  • Correct Answer
  • not be too large 

    Explanation
    If noise is to be eliminated, bandwidth cannot be large.

    Automatic Control Systems problems

    Search Results

    • 1. The compensator of the given figure is a

    • Options
    • A. lag compensator
    • B. lead compensator
    • C. lag-lead compensator
    • D. none of the above
      • Discuss
    • 2. A unity feedback system has open loop transfer function The closed loop transfer function is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 3. In the given figure, if R = XC, voltage gain is

    • Options
    • A. 0 dB
    • B. 3 dB
    • C. -3 dB
    • D. 20 dB
      • Discuss
    • 4. The system in the given figure, has

    • Options
    • A. good gain and phase margin
    • B. poor gain and phase margin
    • C. good gain margin but poor phase margin
    • D. poor gain margin but good phase margin
      • Discuss
    • 5. In the given figure x6 =

    • Options
    • A. de(ax1 + bx2 + cx3)
    • B. (a + b + c) (x1 + x2 + x3) (d + e)
    • C. (ax1 + bx2 + cx3) (d + e)
    • D. a b c d e (x1 + x2 + x3)
      • Discuss
    • 6. Assertion (A): Potentiometers can not be used as error detectors in position control systems.

      Reason (R): The resolution of a potentiometer places an upper limit on its accuracy


    • Options
    • A. Both A and R are correct and R is correct explanation of A
    • B. Both A and R are correct but R is not correct explanation of A
    • C. A is correct but R is wrong
    • D. R is correct but A is wrong
      • Discuss
    • 7. 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
    • 8. 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
    • 9. For the system of the given figure the transfer function =

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

    • Options
    • A. X-Y plotters
    • B. numerically controlled machining equipment
    • C. printers
    • D. all of the above
      • Discuss

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