More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
Mathematics ECAT Pre Engineering Chapter 5 Matrices and Determinants Online Test MCQs With Answers
Question # 1
Choose an answer
Previous
Skip
Next
Question # 2
Choose an answer
3 x 2
2 x 3
3 x 3
2 x 2
Previous
Skip
Next
Question # 3
If the trace of matrix A is 5, then the trace of the matrix 3A is
Choose an answer
3/5
5/3
8
15
Previous
Skip
Next
Question # 4
Choose an answer
0
1
2
3
Previous
Skip
Next
Question # 5
Choose an answer
Previous
Skip
Next
Question # 6
Choose an answer
6, -12, -18
-6, 4, 9
-6, -4, -9
-6, 12, 18
Previous
Skip
Next
Question # 7
Choose an answer
Previous
Skip
Next
Question # 8
Choose an answer
a = -1/2, b = -1
a = 1, b = 2
a = 2, b = 3
None of above
Previous
Skip
Next
Question # 9
Rank of matrix [1 3 5 0] is
Choose an answer
1
3
2
4
Previous
Skip
Next
Question # 10
Choose an answer
all
Previous
Skip
Next
Question # 11
The square matrix A is skew Hermitian when (A)'=
Choose an answer
A
A'
-A
A
Previous
Skip
Next
Question # 12
Choose an answer
Previous
Skip
Next
Question # 13
Choose an answer
Previous
Skip
Next
Question # 14
Choose an answer
0
abc
1/abc
None of these
Previous
Skip
Next
Question # 15
Choose an answer
-a -b -c
1
0
-1
Previous
Skip
Next
Question # 16
Cofactor of an element aij denoted by Aij is
Choose an answer
(-2)i+j
Mij
(-1)i+j Mij
None of above
Previous
Skip
Next
Question # 17
(ABC)' =
Choose an answer
CBA'
CBA
C'B'A
C'B'A'
Previous
Skip
Next
Question # 18
Choose an answer
Previous
Skip
Next
Question # 19
Choose an answer
Scalar matrix
Identity matrix
Null matrix
Symmetric matrix
Previous
Skip
Next
Question # 20
An equation of the form ax + by = k is homogeneous linear equation when:
Choose an answer
Previous
Skip
Next
Question # 21
Choose an answer
2
4
6
8
Previous
Skip
Next
Question # 22
Choose an answer
Previous
Skip
Next
Question # 23
The order of the matrix [1 2 3] is
Choose an answer
1 x 1
3 x 3
3 x 1
1 x 3
Previous
Skip
Next
Question # 24
For trival solution |A| is
Choose an answer
A
|A| = 0
A = 0
|A|≠ 0
Previous
Skip
Next
Question # 25
Choose an answer
3, -3, 11
3, 3, 11
-3, 3, -11
-3, -3, 11
Previous
Skip
Next
Question # 26
Choose an answer
5
15
10
20
Previous
Skip
Next
Question # 27
Choose an answer
a = 2, b = 3
a = 3, b = 2
a = 2, b = 1, 2
a = 3, b = 3
Previous
Skip
Next
Question # 28
Choose an answer
1
-1
0
I
Previous
Skip
Next
Question # 29
A and B be two square matrices and if their inverse exist the (AB)-1 =
Choose an answer
A-1 B-1
AB-1
A-1B
B-1A-1
Previous
Skip
Next
Question # 30
The transport of a rectangular matrix is a
Choose an answer
Square matrix
Rectangular matrix
Row matrix
Column matrix
Previous
Skip
Next
Question # 31
A square matrix A = [aij] is lower triangular matrix when
Choose an answer
aij = 0 for all i<j
bij = 0
cij = 0
dij = 0
Previous
Skip
Next
Back