Open Loop Control System Multiple Choice Questions and Answers


1.  In open loop control system


   A. Output is independent of control input

   B. Output is dependent of control input

   C. Only system parameters have effect on the control output

   D. None of the above


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A. Output is independent of control input

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2.  Which of the following is an open loop control system?


   A. Field controlled D.C. motor

   B. Ward leonard control

   C. Metadyne

   D. Stroboscope


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A. Field controlled D.C. motor

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3.  In open loop control system


   A. The control action depends on the size of the system

   B. The control action depends on system variables

   C.. The control action depends on the input signal

   D. The control action is independent of the output


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D. The control action is independent of the output

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4.  An automatic toaster is a .............loop control system


   A. Open

   B. Closed

   C. Partially closed

   D. Any of the above


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A. Open

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5.  For open loop control system which of the following statements is incorrect?


   A. Less expensive

   B. Recalibration is not required for maintaining the required quality of the output

   C. Construction is simple and maintenance easy

   D. Errors are caused by disturbances


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B. Recalibration is not required for maintaining the required quality of the output

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