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Graph Theory Quiz

Total questions: 20

Worksheet time: 20mins

Name
Class
Date
1.

In an undirected graph the number of vertices with odd degree must be

a)

Zero

b)

Odd

c)

Prime

d)

Even

2.

A graph is a collection of

a)

Row and columns

b)

Vertices and edges

c)

Equations

d)

None of these

3.

Which of the following describes a loop?

a)

This edge connects point A to point C

b)

This edge connects points A and B

c)

This edge connects point C to point C

d)

This edge connects point B to point D

4.

In any undirected graph the sum of degrees of all the nodes

a)

Must be even

b)

is twice the number of edges

c)

Must be odd

d)

Need not be even

5.

A graph with one vertex and no edges is

a)

Multigraph

b)

Digraph

c)

Isolated graph

d)

Trivial graph

6.

The maximum degree of any vertex in a simple graph with n vertices is

a)

n-1

b)

n+1

c)

2n-1

d)

n

7.

A simple graph in which there is an edge between every pair of vertices is called

a)

Planar graph

b)

pseudo graph

c)

Complete graph

d)

Regular graph

8.

A simple graph in which all vertices are of same degree then it is called

a)

Planar graph

b)

pseudo graph

c)

Complete graph

d)

Regular graph

9.

How many edges are there in a graph with 10 vertices each of degree 3?

a)

17

b)

15

c)

10

d)

3

10.

How many edges does a graph have if it has vertices of degree 5, 2, 2, 2, 2, 1?

a)

7

b)

5

c)

14

d)

12

11.

Let G be the graph with 10 vertices. If four vertices has degree four and six vertices has degree five, then find the number of edges of G.

a)

16

b)

30

c)

46

d)

23

12.

An undirected graph G has 16 edges and all the vertices are of degree 2. Find the number of vertices

a)

16

b)

32

c)

64

d)

12

13.

How many edges are there in a graph with 10 vertices each of degree 6?

a)

60

b)

30

c)

10

d)

6

14.

A graph contains 21 edges, 3 vertices of degree 4 and all other vertices of degree 2. Find total number of vertices.

a)

21

b)

36

c)

18

d)

12

15.

For any simple graph G, the maximum number of edges of G is

a)

n(n+1)2

b)

(n+1)2

c)

(n-1)2

d)

n(n-1)2

16.

A graph is Euerian if

a)

Every vertex is of odd degree

b)

Every vertex is even degree

c)

Vertices may have both odd and even degree

d)

Exactly two vertices are of odd degree

17.

A path in a graph that traverses every edge exactly once is called

a)

Hamilton path

b)

Simple path

c)

Euler Path

d)

Walk

18.

A graph G has an Euler path if

a)

Every vertex is of odd degree

b)

Every vertex is even degree

c)

Vertices may have both odd and even degree

d)

Exactly two vertices are of odd degree

19.

A path in a graph that traverses every vertex exactly once is called

a)

Hamilton path

b)

Simple path

c)

Euler Path

d)

Trail

20.

A circuit in a graph that traverses every edge exactly once is called

a)

Hamilton path

b)

Simple path

c)

Euler circuit

d)

Hamilton circuit