Question

Nichol’s chart is useful for the detailed study and analysis of:

(a) Closed loop frequency response

(b) Open loop frequency response

(c) Close loop and open loop frequency responses

(d) open loop and Close loop frequency responses

The question was posed to me by my school principal while I was bunking the class.

This is a very interesting question from Bode Plots in chapter Frequency Response Analysis of Control Systems

Answer 1

The correct choice is (a) Closed loop frequency response

To elaborate: Nichol’s chart is useful for the detailed study and analysis of closed loop frequency response.