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Discussion :: GATE Instrumentation

  1. Consider a plant with the transfer function G(s) = 1/(s + 1)3. Let Ku and Tu be the ultimate gain and ultimate period corresponding to the frequency response based closed loop Ziegler-Nichols cycling method, respectively. The Ziegler-Nichols tuning rule for a P-controller is given as : K = 0.5 Ku. 
    The values of Ku and Tu, respectively, are
    2. A.
    2√2 and 2Ï€
    B.
    8 and 2Ï€
    C.
    8 and 2Ï€/√3
    D.
    2√2 and 2Ï€/√3

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    Workspace

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    Answer : Option C

    Explanation :

    -NA-

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