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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
None of these
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Question # 2
If the graph of f is entirely below the x-axis, then the value of definite integral is
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= 0
< 0
> 0
None
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Question # 3
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Question # 4
A rule or correspondence that assigns to each element x in X a unique element y in Y is called a function from
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X to X
X to Y
Y to X
none of these
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Question # 5
(a
-1
)
-1
=
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a
-1
a
-a
None of above
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Question # 6
The eccentricity of parabola is:
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1
0
Greater than 1
Less than 1
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Question # 7
The area enclosed between the graph y = x
2
-4x and the x- axis is:
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20/3
41/3
32/3
25/3
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Question # 8
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0
1
-1
undefined
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Question # 9
The geometrical representation of a linear function is
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Circle
Parabola
Straight lie
None of these
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Question # 10
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Question # 11
For the parabola the line through focus and perpendicular to the directrix is called
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Tangent
Vertex
Axis
None
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Question # 12
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Question # 13
(0.90)
1/2
is equal to
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0.99
0.90
0.80
0.88
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Question # 14
If (0,4) and (0,2) are vertex and focus of the parabola respectively, the the equation of the parabola is:
Choose an answer
x
2
= 4y -32
x
2
=8y -32
y
3
= 16 x
x2 + 8y =32
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Question # 15
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Question # 16
If
u
=[3,-4],then modulus of
u
is:
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5
5i
-5
√5
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Question # 17
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Question # 18
Any recurring decimal represents a
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Irrational no
Integer
Rational no
None of these
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Question # 19
The graph of a quadratic function is
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Circle
Straight line
Parabola
Triangle
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Question # 20
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Question # 21
The set {-1,1} is
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Group under the multiplication
Group under addition
Does not form a group
Contains no identity element
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Question # 22
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Associative law of multiplication
Commutative law of addition
Commutative law of multiplication
Associative law of addition
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Question # 23
The solution set of the equation 1 + Cos x = 0 is __________
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none of these
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Question # 24
The expansion of (1 - 3x)
-1
is valid if
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| x | < 1
| x | < 3
| x | < 1/3
None of these
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Question # 25
The equation of the plane which bisects the line joining (2, 3, 4) and (6, 7, 8) is
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x + y + z - 15 = 0
x - y + z - 15 = 0
x - y - z - 15 = 0
x + y + z + 15 = 0
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Question # 26
In R, the additive inverse of a is
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0
1
-a
1/a
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Question # 27
The line y = 4x + c touches the hyperbola x
2
- y
2
= 1 if
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Question # 28
If f(x) = x
3
- 2x
2
+ 4x -1 then f(2) is
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7
-16
16
-9
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Question # 29
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Question # 30
Tan 180° = ______
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-1
0
1
Undefined
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Question # 31
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