

MCQOPTIONS
This section includes 45 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEE knowledge and support exam preparation. Choose a topic below to get started.
1. |
Vertically arranged elements in a matrix are called |
A. | columns |
B. | rows |
C. | determinants |
D. | transpose |
Answer» B. rows | |
2. |
In matrices, rows are denoted by |
A. | A |
B. | B |
C. | R |
D. | C |
Answer» D. C | |
3. |
We can subtract two matrices A and B if their |
A. | elements are same |
B. | order is same |
C. | rows are same |
D. | columns are same |
Answer» C. rows are same | |
4. |
A matrix with only 1 column is called |
A. | column matrix |
B. | row matrix |
C. | identical matrix |
D. | square matrix |
Answer» B. row matrix | |
5. |
Generally matrices are denoted by |
A. | capital letters |
B. | numbers |
C. | small letters |
D. | operational signs |
Answer» B. numbers | |
6. |
If A, B and C matrices are of same order and (A + B) + C = A + (B + C), this law is known as |
A. | cramers law |
B. | distributive law |
C. | commutative law |
D. | associative law |
Answer» E. | |
7. |
In matrices (A + B)tequals to |
A. | At |
B. | Bt |
C. | At + Bt |
D. | At Bt |
Answer» D. At Bt | |
8. |
A diagonal matrix having equal elements is called a |
A. | square matrix |
B. | identical matrix |
C. | scalar matrix |
D. | rectangular matrix |
Answer» D. rectangular matrix | |
9. |
If determinant of a matrix is not equal to zero, then it is said to be |
A. | non-singular matrix |
B. | square matrix |
C. | singular matrix |
D. | identical matrix |
Answer» B. square matrix | |
10. |
In matrices (AB)t equals to |
A. | B |
B. | A |
C. | At Bt |
D. | Bt At |
Answer» E. | |
11. |
Law which does not hold in multiplication of matrices is known as |
A. | distributive law |
B. | Inverse law |
C. | associative law |
D. | commutative law |
Answer» E. | |
12. |
Skew symmetric matrix is also called |
A. | symmetric |
B. | identical matrix |
C. | square matrix |
D. | anti symmetric |
Answer» E. | |
13. |
If sum of two matrices A and B is zero matrix, then A and B are said to be |
A. | multiplicative inverse of each other |
B. | additive inverse of each other |
C. | transpose of each other |
D. | determinant of each other |
Answer» C. transpose of each other | |
14. |
Methods to solve a pair of simultaneous linear equations are |
A. | 3 |
B. | 2 |
C. | 4 |
D. | 5 |
Answer» C. 4 | |
15. |
If number of columns and rows are not equal in a matrix, then it is said to be a |
A. | rectangular matrix |
B. | square matrix |
C. | diagonal matrix |
D. | null matrix |
Answer» B. square matrix | |
16. |
We can add two matrices having real numbers A and B if their |
A. | order is same |
B. | rows are same |
C. | columns are same |
D. | elements are same |
Answer» B. rows are same | |
17. |
If determinant of a matrix is equal to zero, then it is said to be |
A. | square matrix |
B. | singular matrix |
C. | non-singular matrix |
D. | identical matrix |
Answer» C. non-singular matrix | |
18. |
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 | |
19. |
A pair of equations to determine value of 2 variables is called |
A. | simultaneous linear equations |
B. | paired equations |
C. | quadratic equations |
D. | simple equations |
Answer» B. paired equations | |
20. |
If A and B matrices are of same order and A + B = B + A, this law is known as |
A. | distributive law |
B. | commutative law |
C. | associative law |
D. | cramers law |
Answer» C. associative law | |
21. |
Equations having a common solution are called |
A. | linear equations |
B. | homogeneous equations |
C. | simultaneous equations |
D. | None of Above |
Answer» D. None of Above | |
22. |
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» C. identity matrix | |
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. |
Transpose of a square matrix is a |
A. | rectangular matrix |
B. | diagonal matrix |
C. | square matrix |
D. | scaler matrix |
Answer» C. square matrix | |
29. |
If A is a matrix of order m x n and B is a matrix of order n x p then order of AB is |
A. | p x m |
B. | p x n |
C. | n x p |
D. | m x p |
Answer» E. | |
30. |
[ 0 0 0 ] is |
A. | Scaler matrix |
B. | diagonal matrix |
C. | identity matrix |
D. | null matrix |
Answer» E. | |
31. |
Matrices obtained by changing rows and columns is called |
A. | rectangular matrix |
B. | transpose |
C. | symetric |
D. | None of Above |
Answer» C. symetric | |
32. |
Transpose of a row matrix is |
A. | zero matrix |
B. | diagonal matrix |
C. | column matrix |
D. | row matrix |
Answer» D. row matrix | |
33. |
Two matrices A and B are added if |
A. | both are rectangular |
B. | both have same order |
C. | no of columns of A is equal to columns of B |
D. | no of rows of A is equal to no of columns of B |
Answer» C. no of columns of A is equal to columns of B | |
34. |
[ a b c ] is a |
A. | zero matrix |
B. | diagonal matrix |
C. | column matrix |
D. | row matrix |
Answer» E. | |
35. |
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 | |
36. |
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 | |
37. |
Two matrices A and B are multiplied to get BA if |
A. | both are rectangular |
B. | both have same order |
C. | no of columns of A is equal to columns of B |
D. | both are square matrices |
Answer» B. both have same order | |
38. |
For a non-trivial solution | A | is |
A. | |A| > 0 |
B. | |A| < 0 |
C. | |A| = 0 |
D. | |A| ≠ 0 |
Answer» D. |A| ≠ 0 | |
39. |
In a matrix multiplication for A and B, (AB)t |
A. | At Bt |
B. | Bt At |
C. | 1/AB |
D. | AB |
Answer» C. 1/AB | |
40. |
Additive inverse of a matrix A is |
A. | A |
B. | |A| |
C. | A² |
D. | adj A⁄|A| |
Answer» E. | |
41. |
If A is a symmetric matrix, then At = |
A. | A |
B. | |A| |
C. | 0 |
D. | diagonal matrix |
Answer» B. |A| | |
42. |
If |A| = 0, then A is |
A. | zero matrix |
B. | singular matrix |
C. | non-singular matrix |
D. | 0 |
Answer» C. non-singular matrix | |
43. |
Two matrices A and B are multiplied to get AB if |
A. | both are rectangular |
B. | both have same order |
C. | no of columns of A is equal to columns of B |
D. | no of rows of A is equal to no of columns of B |
Answer» D. no of rows of A is equal to no of columns of B | |
44. |
Transpose of a column matrix is |
A. | zero matrix |
B. | diagonal matrix |
C. | column matrix |
D. | row matrix |
Answer» E. | |
45. |
Transpose of a rectangular matrix is a |
A. | rectangular matrix |
B. | diagonal matrix |
C. | square matrix |
D. | scaler matrix |
Answer» B. diagonal matrix | |