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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
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0
1
2
4
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Question # 3
The direction cosines of a line equally inclined with co-ordinate axes are
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Question # 4
A function from X to X is denoted as
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f : X to Y
f : Y to Y
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Question # 5
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0
1
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Question # 6
If Cos
θ
=0, then
θ
= ______
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n
π
/2
(2n + 1)
π
/2
(2n - 1)
π
/2
(4n + 1)
π
/2
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Question # 7
The set {Z\{0}} is group w.r.t
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Addition
Multiplication
Division
Subtraction
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Question # 8
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A = B
B = C
A = C
None of these
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Question # 9
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Question # 10
If u = xi + yj, then|u|
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x
2
+ y
2
(x
2
+y
2
)
2
x
2
-y
2
√(x
2
+y
2
)
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Question # 11
If you are looking a bird in the tree from the ground then the angle formed is called angle of______;
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Elevation
Depression
Right angle
None of these
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Question # 12
The middle term(s) of (a+x)11 is
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6th term
6thor 7th
7th term
6thand7th
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Question # 13
Domain of tan x is ______
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Question # 14
The common ration of a geometric sequence cannot be
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0
1
2
3
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Question # 15
Power set of X i.e P(X) _______ under the binary operation of union U
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Forms a group
Does not form a group
Has no identity element
Infinite set although X is infinite
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Question # 16
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The law of consines
The law of sines
The law of tangents
None of these
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Question # 17
x = _________ is in the solution of 2x + 3 < 0
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0
2
-1
-2
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Question # 18
The quadratic equation 8 sec
2
θ
- 6 sec
θ
+1 = 0 has
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Infinitely many roots
Exactly two roots
Exactly four roots
No roots
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Question # 19
One second is denoted by
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1
0
1'
1"
1 rad
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Question # 20
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Question # 21
The set of integer is
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Finite group
A group w.r.t addition
A group w.r.t multiplication
Not a group
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Question # 22
A sequence is a function whose domain is
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N
Subset of N
R
None of these
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Question # 23
For graphing a linear inequality, solid line is drawn if the inequality involves the symbols:
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> or <
>
or
<
= or≠
= or >
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Question # 24
Arithmetic mean between x - 3 and x + 5 is
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x + 1
x + 2
x + 3
x + 4
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Question # 25
The domain of an infinite sequence is a
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Set of natural numbers
R
Subset of N
None of the above
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Question # 26
Two sets A and B are said to be disjoint if
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Question # 27
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Question # 28
A line joining two distinct points on a parabola is called
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Axis
Directrix
Chord
Tangent
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Question # 29
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n(A)
n(B)
0
1
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Question # 30
A and B throw a dice. The probability that A's throw is not greater then B's is
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5 / 12
7 / 12
1 / 6
1 / 2
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Question # 31
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