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ECCE0413 Quiz 3

Total questions: 21

Worksheet time: 24mins

Name
Class
Date
1.

Indicate your Section and Name here:

ex: Gray Isidro - ECE5B

4 lines
2.

A node having only outgoing branches

a)

Input Node

b)

Output node

c)

Incoming node

d)

Outgoing node

3.

Use mason’s gain formula to find the transfer function of the given signal flow graph:

a)

abd/1-(ac)

b)

abdeg/1-(bc+ef)+bcef

c)

abd/1-(bc+ef)+bcef

d)

adcdef/1-(bc+ef)+bcef

4.

Loop which do not possess any common node are said to be ___________ loops.

a)

Forward gain

b)

Touching loops

c)

Non touching loops

d)

Feedback gain

5.

Signal flow graphs is

a)

Pictorial representation of components

b)

The equation obtained may or may not be in the form of cause or effect

c)

Graphical representation of algebraic expressions

d)

They cannot be converted back to block diagram

6.

Use mason’s gain formula to calculate the transfer function of given figure:

a)

G1/1+G2H

b)

G1+G2/1+ G1H

c)

G2/1+G1H

d)

None of the mentioned

7.

According to signal flow graph, which among the following represents the relationship between nodes by drawing a line between them?

a)

Branch

b)

Self-loop

c)

Semi-node

d)

Mesh

8.

The advantage of block diagram representation is that it is possible to evaluate the contribution of each component to the overall performance of the system.

a)

a) True

b)

b) False

9.

6. The overall transfer function from block diagram reduction for cascaded blocks is :

a)

a) Sum of individual gain

b)

b) Product of individual gain

c)

c) Difference of individual gain

d)

d) Division of individual gain

10.

The overall transfer function of two blocks in parallel are :

a)

a) Sum of individual gain

b)

b) Product of individual gain

c)

c) Difference of individual gain

d)

d) Division of individual gain

11.

WHAT IS THE ANOTHER NAME FOR TAKE OFF POINT

a)

RESISTOR

b)

BRANCH POINT

c)

SUMMING POINT

d)

DOT POINT

12.

For the block diagram given in the following figure, the expression of C/R is:

a)

a) G1G2G3/1-G2G1

b)

b) G1G2/1-G1G2G3

c)

c) G1G2G3/1-G1G2G3

d)

d) G1G2/G3(1-G1G2)

13.

The closed loop gain of the system shown in the given figure is :

a)

a) -9/5

b)

b) -6/5

c)

c) 6/5

d)

d) 9/5

14.

IDENTIFY WHICH IS NOT A BASIC COMPONENT OF BLOCK DIAGRAMS

a)

BLOCK

b)

BRANCH POINT

c)

SUMMING POINT

d)

NODE

15.

If G1, G2 and G3 gains are connected in cascade connection, Then the total equivalent gain is

a)

G1xG2XG3

b)

G1+G2+G3

c)

G1+G1-G3

d)

ALL

16.

the overall transfer function of two blocks in parallel are

a)

product of individual gain

b)

sum of individual gain

c)

division of individual gain

d)

difference of individual gain

17.

what is another term for take off point

a)

Summing point

b)

Resistor

c)

Dot point

d)

Branch point

18.

the overall transfer function from block diagram reduction for cascade is:

a)

division of individual gain

b)

sum of individual gain

c)

product of individual gain

d)

difference of individual gain

19.

transfer function of the system is defined as the ratio of laplace output to laplace input considering initial condition __________.

a)

0

b)

1

c)

infinite

d)

2

20.

How many forward paths are there in this signal flow graph?

a)

1

b)

2

c)

3

d)

4

21.

A node having only incoming branches

a)

Input Node

b)

Output node

c)

Incoming node

d)

Outgoing node