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Automatic Control Systems - Engineering

Q1:

Given figure shows a unity feedback system. The ratio of time constants for open loop and closed loop response are

A 1 : 1

B 2 : 1

C 3 : 2

D 2 : 3

ANS:D - 2 : 3

For open loop time constant = 0.25 For closed loop and time constant = Hence ratio of time constants is 3 : 2.