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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
The function f : x→ y defined as f (x) =α∀x∈ X,α∈ y is called
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Constant function
Polynomial function
Identity function
Linear function
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Question # 2
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12
6
8
none of these
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Question # 3
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Question # 4
AB is a vertical pole and C is its middle point. The end A is on the level ground and P is any point on the level ground other than A. the portion CB subtends and angle
β
at P. If AP : AB = 2 : 1 then
β
=
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Question # 5
The set of first elements of the ordered pairs in a relation is called its
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domain
range
relation
function
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Question # 6
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Question # 7
An even function is symmetric about the line
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y = x
x = 0
y = -x
y = 0
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Question # 8
The number of subset of {0} is
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1
2
3
None
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Question # 9
The set of positive integers, 0 and negative integers is known as the set of
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Natural numbers
Rational numbers
All integers
Irrational numbers
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Question # 10
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Question # 11
If the 4th term in the expansion of (px + x
-1
)
m
is 2.5 for all x
∈ R, then
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Question # 12
The magnitude of vector a 2i-7j is
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√23
√43
3
√53
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Question # 13
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25
16
5
0
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Question # 14
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x = f(y)
y = f(x)
x = f(x)
y = f(y)
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Question # 15
For f(x) = x2, what is the value of f(a) +f (-a) in terms of a?
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3a2
2a2
2a
-7a
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Question # 16
The function ø(x) is ananti derivativeof function f (x),x∈Df if
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ø′(x) =∫f(x)dx
ø(x) =∫f(x)dx
ø′(x) =f(x)
ø(x) =∫′(x)dx
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Question # 17
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 # 18
If the circumference of a circle is divided into 360 congruent parts, the angle subtended by one part at the centre of the circle is
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1
0
1'
1"
1 rad
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Question # 19
If C is the mid point of AB and P is any point outside AB, then
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Question # 20
Optimize means ______ a quantity under certain constraints
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Minimize
Maximize
Maximize or minimize
None of these
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Question # 21
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2
5
7
None of these
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Question # 22
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2x
2
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Question # 23
1,1/3,1/5,1/7,1/9..... is a
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geometric sequence
finite sequence
infinite sequence
arithmetic series
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Question # 24
∀ a ε R ∃ o ε R such that a + v = 0 + a = a is property of
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Commutative law of addition
Associative law of addition
Additive identity
Additive inverse
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Question # 25
The graph of the linear equation of the form ax =by = c is a line which divided the plane into:
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Two similar regions
Two disjoint regions
Four equal parts
One region
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Question # 26
The order of the matrix A is 3 x 5 and that of B is 2 x 3.The order of the matrix BA is
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2 x 3
3 x 2
2 x 5
5 x 2
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Question # 27
If 4
6
P
r
=
6
P
r+1
, then r is equal to
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4
3
2
1
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Question # 28
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Question # 29
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0
1
-A
-1
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Question # 30
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Question # 31
Every recurring decimal represents
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A natural number
A rational number
An irrational number
A whole number
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