Graph Theory

This quiz covers fundamental concepts and properties of graph theory, a branch of mathematics that studies the relationships between vertices and edges in graphs.

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

What is the maximum number of edges in a simple graph with n vertices?

  1. n(n-1)
  2. n(n+1)
  3. n^2
  4. 2n
Question 2 Multiple Choice (Single Answer)

Which of the following graphs is acyclic?

  1. Tree
  2. Cycle
  3. Complete graph
  4. Star graph
Question 3 Multiple Choice (Single Answer)

What is the degree of a vertex in a graph?

  1. Number of edges incident to the vertex
  2. Number of vertices adjacent to the vertex
  3. Number of paths starting from the vertex
  4. Number of cycles containing the vertex
Question 4 Multiple Choice (Single Answer)

Which of the following is a property of a bipartite graph?

  1. It can be partitioned into two disjoint sets of vertices
  2. It contains an odd cycle
  3. It is always connected
  4. It has an Eulerian path
Question 5 Multiple Choice (Single Answer)

What is the minimum number of colors required to color the vertices of a graph such that no two adjacent vertices have the same color?

  1. Chromatic number
  2. Degree of the graph
  3. Number of vertices in the graph
  4. Number of edges in the graph
Question 6 Multiple Choice (Single Answer)

Which of the following is a necessary condition for a graph to be Hamiltonian?

  1. It must be connected
  2. It must be complete
  3. It must have an Eulerian path
  4. It must have an odd number of vertices
Question 7 Multiple Choice (Single Answer)

What is the maximum number of edges in a spanning tree of a connected graph with n vertices?

  1. n-1
  2. n
  3. n+1
  4. 2n-1
Question 8 Multiple Choice (Single Answer)

Which of the following is a sufficient condition for a graph to be planar?

  1. It must have an Eulerian path
  2. It must be acyclic
  3. It must have a vertex of degree at most 3
  4. It must be bipartite
Question 9 Multiple Choice (Single Answer)

What is the maximum number of edges in a complete bipartite graph with m vertices in one part and n vertices in the other part?

  1. mn
  2. m(n-1)
  3. n(m-1)
  4. m+n
Question 10 Multiple Choice (Single Answer)

Which of the following is a necessary condition for a graph to be Eulerian?

  1. It must be connected
  2. It must be acyclic
  3. It must have an even number of vertices
  4. It must have an odd number of vertices
Question 11 Multiple Choice (Single Answer)

What is the maximum number of edges in a simple graph with n vertices and m edges?

  1. n(n-1)/2
  2. n(n+1)/2
  3. m(m+1)/2
  4. m(m-1)/2
Question 12 Multiple Choice (Single Answer)

Which of the following is a necessary condition for a graph to be Hamiltonian?

  1. It must be connected
  2. It must be complete
  3. It must have an Eulerian path
  4. It must have an odd number of vertices
Question 13 Multiple Choice (Single Answer)

What is the maximum number of edges in a spanning tree of a connected graph with n vertices?

  1. n-1
  2. n
  3. n+1
  4. 2n-1
Question 14 Multiple Choice (Single Answer)

Which of the following is a sufficient condition for a graph to be planar?

  1. It must have an Eulerian path
  2. It must be acyclic
  3. It must have a vertex of degree at most 3
  4. It must be bipartite
Question 15 Multiple Choice (Single Answer)

What is the maximum number of edges in a complete bipartite graph with m vertices in one part and n vertices in the other part?

  1. mn
  2. m(n-1)
  3. n(m-1)
  4. m+n