Question

State model is generally not suitable for measuring:

(a) Investigation of system properties

(b) Evaluation of time response

(c) Real variables

(d) Both a and b

This question was posed to me in an international level competition.

I'd like to ask this question from Diagonalization in section State Variable Analysis and Design of Control Systems

Answer 1

Correct choice is (d) Both a and b

For explanation I would say: State models are used in the state model analysis and is employed in  all the variables as physical, phase and canonical phase analysis and is generally not suitable for investigation of system properties and evaluation of time response.