Control System Multiple Choice Questions and Answers


31.  In a stable control system backlash can cause which of the following?


   A. Underdamping

   B. Overdamping

   C. Poor stability at reduced values of open loop game

   D. Low-level oscillations


✔ View Answer


D. Low-level oscillations

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32.  In an automatic control system which of the following elements is not used ?


   A. Error detector

   B. Final control element

   C. Sensor

   D. Oscillator


✔ View Answer


D. Oscillator

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33.  In a control system output of the controller is given to


   A. Final control element

   B. Amplifire

   C. Comparator

   D. Sensor


✔ View Answer


A. Final control element

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34.  A controller, essentially is a


   A. Sensor

   B. Clipper

   C. Comparator

   D. Amplifier


✔ View Answer


C. Comparator

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35.  Bimetallic thermostat is ..............controller


   A. On-off

   B. Zero-term

   C. One-term

   D. Two-term


✔ View Answer


A. On-off

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