Chemical Engineering - Process Control and Instrumentation - Discussion


The frequency response of a first order system, has a phase shift with lower and upper bounds given by

[A]. - ∞, π/2
[B]. -π/2, π/2
[C]. -π/2, 0
[D]. 0, π/2

Answer: Option D


No answer description available for this question.

Bhavin Trada said: (May 29, 2017)  
The answer should be the option C. 0 to -π/2.

Jack said: (Oct 3, 2017)  
Yes, C is right.

Sonu Dhakad said: (Jun 1, 2018)  
How is it? please give an explanation.

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