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Signals and Systems by Smarajit Ghosh

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MULTIPLE CHOICE QUESTIONS
  1. A positive feedback signal improves the performance of automatic control system.
    1. false
    2. true
  2. For given system Routh’s array is given below:

     

    image

     

    The system is

    1. marginally stable
    2. unstable
    3. stable
    4. conditionally stable
  3. The number of sign changes in the entries in the first column of Routh’s array denotes
    1. the number of roots of characteristics polynomial in RHP
    2. the number of open loop poles in RHP
    3. the number of zeros the system in RHP
    4. the number of open-loop zeros in RHP
  4. The transfer function of a system is image. For the system ...

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