## Marks 1

The block diagram of a feedback control system is shown in the figure. The overall closed-loop gain G of the system is
...

By performing cascading and/or summing/differencing operations using transfer function
blocks G1(s) and G2(s), one CANNOT realize a transfer function ...

For the signal flow graph shown in the figure, the value of $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mathrm s\right)}$$ is
...

Consider the following block diagram in the figure.
The transfer function $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mathrm s\right)}$...

For the following system,
When X1(s) = 0 , the transfer function $$\frac{\mathrm Y\left(\mathrm s\right)}{{\mathrm X}_2\left(\mathrm s\right)}$$ is
...

The transfer function Y(s)/R(s) of the system shown is
...

The equivalent of the block diagram in Figure is given as
...

Signal flow graph is used to find

## Marks 2

The signal flow graph for a system is given below. The transfer function $$\frac{Y(s)}{U(s)}$$ for this system is
...

Consider the signal flow graph shown in Figure. The gain $$\frac{x_5}{x_1}$$ is
...

The signal flow graph of a system is shown in figure. The transfer function $$\frac{C(s)}{R(s)}$$ of the system is
...

An electrical system and its signal-flow graph representations are shown in Figure
(a) and (b) respectively. The values of G2 and H, respectively are ...

In the signal flow graph of Fig. y/x equals
...

In the signal flow graph of Figure, the gain c/r will be
...

In the signal flow graph shown in fig X2= TX1 where T is equal to
...

For the system shown in figure the transfer function $$\frac{\mathrm C\left(\mathrm s\right)}{\mathrm R\left(\mathrm s\right)}$$ is equal to
...

## Marks 5

A feedback control system is shown in figure
(a) Draw the signal-flow graph that represents the system.
(b) Find the total number of loops in the gra...

Draw a signal flow graph for the following set of algebraic equations:
$$$\begin{array}{l}y_2=ay_1-\;gy_3\\y_3=ey_2+\;cy_4\\y_4=by_2-dy_4\end{array}$$...

Reduce the signal flow graph shown in fig. below, to obtain another graph which does not contain the node e5.Also, remove any self-loop from the resul...