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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
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Question # 2
The principal value of sin
-1
(-1/2)
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π/3
π/4
π/6
-π/6
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Question # 3
The graph of a quadratic function is
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Circle
Straight line
Parabola
Triangle
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Question # 4
If origin is the mid point of (a,3) and (5,b) then
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a = -5 , b = -3
a = 5 , b =3
a = -5 , b = 3
a = 5 , b = -3
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Question # 5
The additive identity of real number is
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1
2
1/2
0
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Question # 6
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Question # 7
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2
x
2
x
In x
2
x
In 2
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Question # 8
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Question # 9
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Question # 10
x = 1 is in the solution of the inequality
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x + 1 > 0
x - 2 > 0
3x - 1 < 0
x + 2 < 0
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Question # 11
The center of the sphore which passes thro' (a, 0, 0), (0, b, 0), (0, 0, c) and (0, 0, 0) is
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Question # 12
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Question # 13
Cos-1(x)=
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cos x
x
tan-1(-x)
Sec-1 (1/x)
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Question # 14
The multiplicative inverse of x such that x = 0 is
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-x
does not exist
1/x
0
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Question # 15
The general solution of tan 3x = 1 is
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Question # 16
In R the right cancellation property w.r.t. addition is
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Question # 17
A sequence is a functions whose domain is a subset of the set of
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Natural numbers
Real numbers
Whole numbers
Rational numbers
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Question # 18
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Question # 19
5x
3
+ 3x - is a ______
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Polynomial of degree 3
Polynomial of degree 2
Polynomial of degree 1
Polynomial of degree 0
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Question # 20
A square matrix A = [aij] is lower triangular matrix when:
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aij = 0 for all i < j
bij = 0
cij = 0
dij =0
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Question # 21
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Question # 22
Which of the following is the subset of all sets
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Φ
{1,2,3}
{Φ}
{0}
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Question # 23
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a = -1/2, b = -1
a = 1, b = 2
a = 2, b = 3
None of above
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Question # 24
Cos 60° = ______
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1
2
1/2
3
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Question # 25
Water seeps out of a conical filter at eh constant rate of 5 cm/sec. the height of the cone of water in the filter is 15 cm. the height of the filter is 20 cm and radius of the base is 10 cm. the rate at which the height of the water decreases is
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Question # 26
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5
10
20
30
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Question # 27
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1
-1
-1/2
1/2
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Question # 28
Period of cosec x is ______
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Question # 29
A sequence having no last term is called
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arithmetic sequence
Geometric sequence
Finite sequence
Infinite sequence
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Question # 30
The set (Z, +) forms a group
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Forms a group w.r.t addition
Forms a group w.r.t multiplication
Non commutative group w.r.t multiplication
Doesn't form a group
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Question # 31
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y/x
x/y
y/z
None
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