Chemical Engineering > GATE 2015 > Process Dynamics
Which one of the following transfer functions, upon a unit step change in disturbance at t = 0, will show a stable time domain response with a negative initial slope (i.e., slope at t=0):
A
G(s) = 1/(s+1) - 2/(s+4)
B
G(s) = 1/(s+1) + 2/(s+4)
C
G(s) = 1/(s+1) + 2/(s-4)
D
G(s) = 1/(s-1) + 2/(s-4)

Correct : a

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