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A good control system has the following features, except :

  • A.Good stability
  • B.A simple system
  • C.Good accuracy
  • D.Sufficient power handling

Answer: B

The feature not in the list is a simple system.

The standard requirements of a good control system are performance requirements: good stability, so that it settles rather than oscillates; good accuracy, a small steady-state error; adequate speed of response; and sufficient power handling, so that it can drive its load.

Simplicity is welcome in any design, but it is not one of the performance features that define a good control system; meeting the others often makes the system more complex, through feedback, compensators and sensors.

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