Automatic Control Systems - Engineering

Q1:

The signal flow graph of a system is shown in the given figure. The effect of disturbance TD can be reduced by

A increasing G2 (s)

B decreasing G2 (s)

C increasing G1 (s)

D decreasing G1 (s)

ANS:C - increasing G1 (s)

If G1(s) is increased, input is amplified more while disturbance remains the same.