Question

Which one of the following statements is not correct?

(a) Root loci can be used for analyzing stability and transient performance

(b) Root loci provide insight into system stability and performance

(c) Shape of the root locus gives idea of type of controller needed to meet design specification

(d) Root locus can be used to handle more than one variable at a time

I have been asked this question in an online interview.

This question is from The Root Locus Concepts in chapter The Root Locus Technique of Control Systems

Answer 1

Correct answer is (d) Root locus can be used to handle more than one variable at a time

For explanation I would say: For more than one variable state space is used.