Chemical Engineering - Process Control and Instrumentation - Discussion

1. 

Time constant is the

[A]. time taken by the controlled variable to reach 63.2% of its full change.
[B]. same as transportation lag.
[C]. same as dead time.
[D]. time required by the measured variable to reach 63.2% of its ultimate change.

Answer: Option A

Explanation:

No answer description available for this question.

Papu Das said: (Mar 9, 2017)  
What is the difference between measured variable and controlled variable, At which variable time constant is more adaptable?

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