Explore topic-wise MCQs in VITEEE.

This section includes 34 Mcqs, each offering curated multiple-choice questions to sharpen your VITEEE knowledge and support exam preparation. Choose a topic below to get started.

1.

If a matrix has equal number of columns and rows then it is said to be a

A. row matrix
B. identical matrix
C. square matrix
D. rectangular matrix
Answer» D. rectangular matrix
2.

Matrix A when multiplied with Matrix C gives the Identity matrix I, what is C?

A. Identity matrix
B. Inverse of A
C. Square of A
D. Transpose of A
Answer» C. Square of A
3.

What is the disadvantage of matrices?

A. Internal complexity
B. Searching through a matrix is complex
C. Not space efficient
D. All of the mentioned
Answer» E.
4.

Which of the following are the uses of matrices?

A. In solving linear equations
B. Image processing
C. Graph theory
D. All of the mentioned
Answer» E.
5.

If column-major order is used, how is the following matrix stored in memory?
a b c
d e f
g h i

A. ihgfedcba
B. abcdefghi
C. cfibehadg
D. adgbehcfi
Answer» E.
6.

If row-major order is used, how is the following matrix stored in memory?
a b c
d e f
g h i

A. ihgfedcba
B. abcdefghi
C. cfibehadg
D. adgbehcfi
Answer» C. cfibehadg
7.

What does the following piece of code do?

for(int i = 0; i < row; i++)
{  
    for(int j = 0; j < column; j++)
    {
        if(i == j)
            sum = sum + (array[i][j]);
    }
}
System.out.println(sum);

A. Normal of a matrix
B. Trace of a matrix
C. Square of a matrix
D. Transpose of a matrix
Answer» C. Square of a matrix
8.

Select the code snippet which performs matrix multiplication.(a and b are the two given matrices, resultant marix is c)

A. for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { for (int k = 0; k < n; k++) { c[i][j] = c[i][j] + a[i][k] * b[k][j]; } } }
B. for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { for (int k = 0; k < n; k++) { c[i][j] = c[i][j] * a[i][k] * b[k][j]; } } }
C. for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { for (int k = 0; k < n; k++) { c[i][j] = c[i][j] + a[i][k] + b[k][j]; } } }
D. None of the mentioned
Answer» B. for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { for (int k = 0; k < n; k++) { c[i][j] = c[i][j] * a[i][k] * b[k][j]; } } }
9.

How do you allocate a matrix using a single pointer in C?(r and c are the number of rows and columns respectively)

A. int *arr = malloc(r * c * sizeof(int));
B. int *arr = (int *)malloc(r * c * sizeof(int));
C. int *arr = (int *)malloc(r + c * sizeof(int));
D. int *arr = (int *)malloc(r * c * sizeof(arr));
Answer» C. int *arr = (int *)malloc(r + c * sizeof(int));
10.

Which of the following property does not hold for matrix multiplication?

A. Associative
B. Distributive
C. Commutative
D. None of the mentioned
Answer» D. None of the mentioned
11.

What is the order of a matrix?

A. number of rows X number of columns
B. number of columns X number of rows
C. number of rows X number of rows
D. number of columns X number of columns
Answer» B. number of columns X number of rows
12.

Which of the following property of matrix multiplication is correct:

A. Multiplication is not commutative in genral
B. Multiplication is associative
C. Multiplication is distributive over addition
D. All of the mentioned
Answer» E.
13.

Let A be a nilpotent matrix of order n then

A. An = O
B. nA = O
C. A = nI, I is Identity matrix
D. None of the mentioned
Answer» B. nA = O
14.

State whether the given statement is True or False.
If for a square matrix A and B,null matrix O, AB =O implies A=O and B=O.

A. True
B. False
Answer» C.
15.

State True or False:
If for a square matrix A and B,null matrix O, AB =O implies BA=O:

A. True
B. False
Answer» C.
16.

State True or False:

A. True
B. False
Answer» B. False
17.

Let A = [kaij ]nxn, B = [aij ]nxn, be an nxn matrices and k be a scalar then det(A) is equal to:

A. Kdet(B)
B. Kndet(B)
C. K3det(b)
D. None of the mentioned
Answer» C. K3det(b)
18.

 For a skew symmetric odd ordered matrix A of integers, which of the following will hold true:

A. det(A) = 9
B. det(A) = 81
C. det(A) = 0
D. det(A) = 4
Answer» D. det(A) = 4
19.

 For a skew symmetric even ordered matrix A of integers, which of the following will not hold true

A. det(A) = 9
B. det(A) = 81
C. det(A) = 7
D. det(A) = 4
Answer» D. det(A) = 4
20.

If determinant of a matrix A is Zero than:

A. A is a Singular matrix
B. A is a non-Singular matrix
C. Can’t say
D. None of the mentioned
Answer» B. A is a non-Singular matrix
21.

 The determinant of identity matrix is :

A. 1
B. 0
C. Depends on the matrix
D. None of the mentioned
Answer» B. 0
22.

If a matrix has m rows and n columns then order is

A. m + n
B. n x n
C. m x m
D. m x n
Answer» E.
23.

 Order of a matrix [ 2 5 7 ] is

A. 3 x 3
B. 1 x 1
C. 3 x 1
D. 1 x 3
Answer» E.
24.

 Two matrices A and B are equal if

A. both are rectangular
B. both have same order
C. no of columns of A is equal to columns of B
D. both have same order and equal corresponding elements
Answer» E.
25.

If A is a skew symmetric matrix, then At

A. −A
B. A
C. 0
D. diagonal matrix
Answer» B. A
26.

 If AB exists, then ( AB )-1is

A. A-1 B-1
B. B-1 A-1
C. AB
D. None of Above
Answer» C. AB
27.

 If |A| ≠ 0, then A is

A. zero matrix
B. singular matrix
C. non - singular matrix
D. diagonal matrix
Answer» D. diagonal matrix
28.

 [ a b c ] is a

A. zero matrix
B. diagonal matrix
C. column matrix
D. row matrix
Answer» E.
29.

A matrix having m rows and n columns with m ≠ n is said to be a

A. rectangular matrix
B. square matrix
C. identity matrix
D. scaler matrix
Answer» B. square matrix
30.

For any non- singular matrix A, A-1 =

A. |A|adj A
B. 1 /|A|adj A
C. adj A⁄|A|
D. None of Above
Answer» D. None of Above
31.

 In a matrix multiplication for A and B, (AB)t

A. At Bt
B. TrueBt At
C. 1/AB
D. AB
Answer» C. 1/AB
32.

 If A is a symmetric matrix, then At =

A. A
B. |A|
C. 0
D. diagonal matrix
Answer» B. |A|
33.

 If |A| = 0, then A is

A. zero matrix
B. singular matrix
C. non-singular matrix
D. 0
Answer» C. non-singular matrix
34.

 Transpose of a rectangular matrix is a

A. rectangular matrix
B. diagonal matrix
C. square matrix
D. scaler matrix
Answer» B. diagonal matrix