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Quiz: LCS-Root Locus

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Number of Questions: 17

Question: 16 -

The value of a0 which will ensure that the polynomial s3+2s+a0 has roots on the left half of the s-plane 

Options:

  1. 11

  2. 6

  3. 5

  4. 9

    5. Answer:

    5
    Solution:

    Using ROUTH'S Array

    (6-a0)/3 > 0

Question: 17 -

A single-input single-output feedback system has forward transfer function G(s) and feedback transfer function H(s) It is given that I G(s).H(s)I<1. Which of the following is true about the stability of the system?

Options:

  1. The system is stable if all zeros of G(s).H(s) are in left half of the s-plane

  2. The system is always stable

  3. It is not possible to say whether or not the system is stable from the information given

  4. The system is stable if all pole of G(s).H(s) are in left half of the s-plane

    5. Answer:

    The system is always stable
    Solution not available.