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AllInfoHub – MCQ Practice

Control Systems – Multiple Choice Questions (MCQs)

  1. 85. The transfer function of a proportional controller is:

    • A. Kp
    • B. Kp/s
    • C. Kp*s
    • D. Kp/(1+sT)
  2. 86. The transfer function of an integral controller is:

    • A. Ki
    • B. Ki/s
    • C. Ki*s
    • D. Ki/(1+sT)
  3. 87. The transfer function of a derivative controller is:

    • A. Kd
    • B. Kd/s
    • C. Kd*s
    • D. Kd/(1+sT)
  4. 88. The phase margin represents the amount of additional phase lag that can be introduced into the loop before the system becomes:

    • A. Critically damped
    • B. Overdamped
    • C. Marginally stable
    • D. Unstable
  5. 89. The gain margin represents the amount by which the gain can be increased before the system becomes:

    • A. Critically damped
    • B. Overdamped
    • C. Marginally stable
    • D. Unstable
  6. 90. The addition of a pole to the open-loop transfer function generally causes the root locus to shift towards the:

    • A. Right
    • B. Left
    • C. Origin
    • D. Infinity
  7. 91. The addition of a zero to the open-loop transfer function generally causes the root locus to shift towards the:

    • A. Right
    • B. Left
    • C. Origin
    • D. Infinity
  8. 92. The sensitivity of the closed-loop system to changes in the forward path gain is ________ than that of the open-loop system.

    • A. Higher
    • B. Lower
    • C. Same
    • D. Independent