Control System Multiple Choice Questions and Answers


16.  A control system in which the control action is somehow dependent on the output is known as


   A. Closed loop system

   B. Semiclosed loop system

   C. Open system

   D. None of the above


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A. Closed loop system

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17.  A control system working under unknown random action is called ..........


   A. Computer control system

   B. Digital data system

   C. Stochastic Control system

   D. Adaptive control system


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C. Stochastic Control system

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18.  In a stable control system saturation can cause which of the following?


   A. Low-level oscillations

   B. High-level oscillations

   C. Conditional stability

   D. Over damping


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C. Conditional stability

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19.  In pneumatic control systems the control panel used as final control element converts


   A. Pressure signal to electric signal

   B. Pressure signal to position change

   C. Electric signals to be sure signal

   D. Position change to pressure signal


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B. Pressure signal to position change

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20.  The first order control system, which is is well designed, has a


   A. Small bandwidth

   B. Negative time constant

   C. Large negative transfer function pole

   D. None of the above


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C. Large negative transfer function pole

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