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What is/are the advantages of the Nyquist plot?

136. What is/are the advantages of the Nyquist plot?

1. Control system stability can be determined by it.
2. In terms of time delay, it is superior to the root locus.
3. An open-loop transfer function can be found by measuring its frequency response.
4. All of the above

Answer: D) All of the above

Explanation:

The advantages of the Nyquist plot are -

1. Control system stability can be determined by it.
2. In terms of time delay, it is superior to the root locus.
3. An open-loop transfer function can be found by measuring its frequency response.