Control System Multiple Choice Questions and Answers


26.  The phenomena of 'limit cycles' and 'jump resonance' are observed in


   A. Discrete time systems

   B. Linear systems

   C. Non-linear systems

   D. Distributed systems


✔ View Answer


C. Non-linear systems

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27.  Isocline method is used for which one of the following ?


   A. Design of non-linear system

   B. Construction of route loci of nonlinear system

   C. Construction of phase trajectories of nonlinear systems

   D. Stability analysis of nonlinear system


✔ View Answer


C. Construction of phase trajectories of nonlinear systems

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28.  The effect of tachometer feedback in a control system is to reduce


   A. Only time constant

   B. Only gain

   C. Damping

   D. Both gain and time constant


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C. Damping

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29.  Which one of the following can be used as a tachogenerator in control system ?


   A. Microsyn

   B. DC Servomotor

   C. AC Servomotor

   D. Magnetic amplifier


✔ View Answer


C. AC Servomotor

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30.  Microsyn is based on the principle of


   A. DC motor

   B. Resolver

   C. Saturable reactor

   D. Rotating differential transformer


✔ View Answer


D. Rotating differential transformer

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