GATE 2011 ECE - Control Systems - Complete Video Solutions

2011

1.
The differential equation 100d^{2}y/dt^{2}-20dy/dt+y
= x(t) describes a system with an input x(t) and an output y(t).The
system which is initially relaxed, is excited by a unit step input.
The output y(t) can be represented by the waveform

The
input – output transfer function of a plant H(s) = 100/s(s+10)^{2}.
The plant is placed in a unity negative feedback configuration as
shown in figure below.

6.
The signal flow graph that DOES NOT model the plant transfer function
H(s) is