Control System Multiple Choice Questions and Answers


26.  If the dumping factor of a control system is unity it will give


   A. No response

   B. Critically damped response

   C. Undamped response

   D.. Oscillatory response


✔ View Answer


B. Critically damped response

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27.  When the gain margin is positive and the phase margin is negative, the system is


   A. Stable

   B. Unstable

   C. Probalistic

   D. Underterministic


✔ View Answer


B. Unstable

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28.  In a control system an error detector


   A. Detects the error and signal out an alarm

   B. Detects the errors of the system

   C. Produces an error signal as the actual difference of value and desired value of output

   D. Any of the above


✔ View Answer


C. Produces an error signal as the actual difference of value and desired value of output

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29.  Bandwidth is used as a means of specifying performance of a control system related to


   A. The constant gain

   B. The speed of response

   C. Relative stability of the system

   D. All of the above


✔ View Answer


B. The speed of response

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30.  ............. is not a form of nonlinearity for control system


   A. Square-law transfer characteristics

   B. Backlash

   C. Saturation

   D. All of the above


✔ View Answer


D. All of the above

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