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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
Choose an answer
none of these
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Question # 2
The remove the term involving xy, from 7x2 -6√3xy+ 13y2 -16 =0 the angel of rotation is
Choose an answer
θ = 30°
θ = 45°
θ = 60°
θ = 75°
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Question # 3
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Question # 4
The slope of x-axis is
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0
undefined
1
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Question # 5
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Question # 6
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Question # 7
For any integer k, w
n
= ______ when n = 3k
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1
2
0
-4
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Question # 8
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Question # 9
The roots of the equation x2 +6x-7=0,are
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1
2
1 and -7
-7
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Question # 10
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 # 11
The domain the function : f(x) = x
2
is given by
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R
Set of all non-negative Real numbers
R
-1
None of these
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Question # 12
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1
2
0
4
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Question # 13
The set {Z\ {0} } is group w.r.t
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Addition
Multiplication
Division
Subtraction
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Question # 14
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-1
0
1
undefined
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Question # 15
Choose an answer
3/4
r
v
None of these
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Question # 16
√2 is a number
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Rational
Irrational
Even
Odd
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Question # 17
The roots of (b-c)x2+(c-a) x+a-b=0 are equal if
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2b = a+c
2a = b+c
2c = a+b
a + b + c =0
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Question # 18
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0
undefined
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Question # 19
Let A and B be two sets. If every element of A is also an element of B then
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Question # 20
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Question # 21
Graph of the question x
2
+ y
2
= 4 is
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A circle
An ellipse
A parabola
A square
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Question # 22
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1
2
3
4
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Question # 23
Cos
-1
12/13 =
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tan
-1
3/5
cot
-1
13/12
Sec
-1
13/12
sin
-1
5/13
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Question # 24
Choose an answer
none of these
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Question # 25
InΔABC if y = 90° then the Pythagoras theorem is
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b2 + c2 =a2
a2 + b2 = c2
a2 +c2 = b2
None of these
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Question # 26
The nth term of an A.P is (3n+5) Its 75th term is
Choose an answer
26
7
21
Cannot be determined
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Question # 27
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Question # 28
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A complex number
A rational number
A natural number
An irrational number
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Question # 29
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 # 30
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 # 31
An A.P. consists of n(odd terms) and its middle term is m. then the sum of the A.P. is
Choose an answer
2 mn
1/2 mn
mn
mn
2
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