On-off control which is a special case of proportional control, has a band width of about _____________ percent?
Correct answer: D. 0
- A. 100
- B. 75
- C. 25
- D. 0
Explanation
An on-off controller has only two output states and changes state abruptly at the set point, corresponding to an ideal proportional controller with zero proportional band. Hence its band width is 0%.
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