Block Diagram and Signal Flow Graphs – Exercise – 1

Block Diagram and Signal Flow Graphs » Exercise – 1

1. In the following block diagram, G₁ = 10/s, G₂ = 10/(s + 1) , H₁ = S + 3 and H₂ = 1. The overall transfer function C/R is given by :

2. The signal flow of a system is shown in the given figure. In this graph, the number of three non-touching loops is :

(a)  zero

(b)  1

(c)  2

(d)  3

3. A signal flow graph is shown in the given figure. The number of forward paths M and the number of individual loops P for this signal flow graph would be :

(a)  M = 4 and P = 3

(b)  M = 6 and P = 3

(c)  M = 4 and P = 6

(d)  M = 6 and P = 6

4. The equations based on which a signal flow graph is drawn must be :

(a)  differential equations
(b)  algebraic equation
(c)  algebraic equations in the form of cause –and effect relation
(d)  differential equations in form of cause –and effect relations

5. A node which has both incoming and outgoing branches is called a/an :

(a)  input node
(b)  output node
(c)  mixed note
(d)  general node

Related Posts