

MCQOPTIONS
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. | 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. | 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. |
A. | True |
B. | False |
Answer» C. | |
15. |
State True or False: |
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 | |