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
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
real part of z
imaginary part of z
conjugate of z
modulus of z
Previous
Skip
Next
Question # 2
Choose an answer
Diagonal matrix
Scalar matrix
Triangular matrix
Identity matrix
Previous
Skip
Next
Question # 3
A matrix in which the number of rows is not equal to the number of columns is called a
Choose an answer
Diagonal matrix
Rectangular matrix
Square matrix
Scalar matrix
Previous
Skip
Next
Question # 4
Choose an answer
none of these
Previous
Skip
Next
Question # 5
Choose an answer
5
20
9
4
Previous
Skip
Next
Question # 6
If the cutting plane is parallel to the axis of the cone and intersects both of its nappes, then the curve of intersection is:
Choose an answer
an ellipse
a circle
a parabols
a hyperbola
Previous
Skip
Next
Question # 7
Choose an answer
Previous
Skip
Next
Question # 8
A square matrix all of whose elements except the main diagonal are zeros is called a
Choose an answer
Null matrix
Singular matrix
Symmetric matrix
Diagonal matrix
Previous
Skip
Next
Question # 9
Choose an answer
[0, 0, 0]
[1, 0, 0]
[0, 1, 0]
[0, 0, 1]
Previous
Skip
Next
Question # 10
The angle of depression of a point A on the ground from the top of the tower is 30π,then the angle of elevation of the top of the tower at the point A is
Choose an answer
60π
40π
41π
30π
Previous
Skip
Next
Question # 11
If d
1
is the distance between (0,0) and (1,2) and d
2
is the distance between (0,0) and (-1,-2) the
Choose an answer
d
1
< d
2
d
1
> d
2
d
1
= d
2
none of these
Previous
Skip
Next
Question # 12
Given two independent event A and B such that P(A) = 0.30 and P(B) = 0.60. Probability of getting neither A nor B is
Choose an answer
0.28
0.13
0.12
0.42
Previous
Skip
Next
Question # 13
If m and n be two scalars, then (m+n) g =
Choose an answer
0
m+n
mβa+nβa
ma - mβa
Previous
Skip
Next
Question # 14
If
Ξ±
,
Ξ²
are the roots of ax
2
+ bx + c = 0 and
Ξ±
+ h,
Ξ²
+ h are the roots of px
2
+ qx + r=0, then h =
Choose an answer
Previous
Skip
Next
Question # 15
Choose an answer
1
2
3/2
5/2
Previous
Skip
Next
Question # 16
Choose an answer
Previous
Skip
Next
Question # 17
If the flag-staff 6 meters high placed on the top of a tower. Makes the shadow 2β3 m on the ground, then the angle of elevation of the sun is
Choose an answer
30
ΞΏ
35
ΞΏ
45
ΞΏ
60
ΞΏ
Previous
Skip
Next
Question # 18
A Geometric Series is divergent only if
Choose an answer
|r|>1
|r|β₯1
|r|=1
None of these
Previous
Skip
Next
Question # 19
1 + 2 + 3 + ...... + n = ______
Choose an answer
Previous
Skip
Next
Question # 20
Theβ is used for the
Choose an answer
Positive square root
Negative square root
+ve and -ve square root
Whole number
Previous
Skip
Next
Question # 21
Choose an answer
cos 2x
2 cos 2x
2 sin2x
-2 cos2x
Previous
Skip
Next
Question # 22
Choose an answer
sec x tan x
-cosec x cot x
sec
2
x
-sin x
Previous
Skip
Next
Question # 23
An equation of the form ax + by = k is homogeneous linear equation when
Choose an answer
b = 0, a = 0
a = 0,b β 0
b = -0,aβ 0
aβ 0,bβ 0, k = 0
Previous
Skip
Next
Question # 24
How many necklaces can be made from 6 beads of different colours?
Choose an answer
120
60
24
15
Previous
Skip
Next
Question # 25
Area of the circle with ends of a diameter at (-3,2) and (5,-6)
Choose an answer
128Ο sq. units
64Ο sq. units
32Ο sq.units
None of these
Previous
Skip
Next
Question # 26
Choose an answer
Previous
Skip
Next
Question # 27
Choose an answer
Previous
Skip
Next
Question # 28
Choose an answer
Previous
Skip
Next
Question # 29
Choose an answer
Previous
Skip
Next
Question # 30
The set of points {(x,y)|y = f(x),βxβ} is called
Choose an answer
Relation
Graph of f
Function
All are correct
Previous
Skip
Next
Question # 31
Choose an answer
cosec x + c
-cosec x + c
-sec x + c
sec x + c
Previous
Skip
Next
Back
