Match the following lists : Codes :List - I List - II a. 
i. 
b. 
ii. 
c. 
iii. 
d. 
iv. 
a-iii, b-iv, c-ii, d-i
To solve this match-the-following question, we need to understand the type of control system configuration each diagram represents.
Based on the analysis, the correct matching is:
Hence, the correct answer is a-iii, b-iv, c-ii, d-i.
The transfer function of the system shown in the following figure is :

The transfer function of the given signal flow graph is

Consider the following signal flow graph.

Assume that A is number of forward paths, B is number of feedback loops, C is number of touching loops. Arrange A, B and C in decreasing order :
The transfer function of the system shown in the following figure is :

The transfer function of the given signal flow graph is

Consider the following signal flow graph.

Assume that A is number of forward paths, B is number of feedback loops, C is number of touching loops. Arrange A, B and C in decreasing order :