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  1. An open loop system has a forward path transfer function (42.25)/s(s + 6.5). The unit step response of the system starting from rest will have its maximum value at a time equal to

    2. A.
    0 sec
    B.
    0.56 sec
    C.
    5.6 sec
    D.
    infinity

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    Answer : Option D

    Explanation :

    Unit step response is Taking inverse transform, the time domain response is - 1 + 6.5t + e-6-5t. It reaches maximum value at t = infinity.

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