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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
The graph of linear equation 2x + 3y = 10
Choose an answer
Parabola
Circle
Hyperbola
Straight line
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Question # 2
The square of the distance between two points P(x
1
, y
1
) and Q(x
2
, y
2
) is
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Question # 3
The set of all positive even integers is
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Not a group
A group w.r.t. subtraction
A group w.r.t. division
A group w.r.t. multiplication
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Question # 4
The set {{a,b}} is
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Infinite set
Singleton set
Two points set
None
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Question # 5
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Question # 6
Multiplicative inverse of "1" is
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+- 1
0
1
None of these
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Question # 7
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 # 8
The general term of the A.P. is
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a
1
+ (n - 1) d
n + (a
1
- 1) d
d + (n - 1) a
1
None of these
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Question # 9
If line through (4,3) and (2,k) is perpendicular to y =2x +3, then k =_______
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-1
1
-4
4
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Question # 10
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Question # 11
The conic ax2+2hxy+by2+2gx+2fy+c= 0 never represent a circle if
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a≠ b,h≠0
a=b
h≠0
h=0
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Question # 12
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Question # 13
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(x, y)
(kx, y)
(x, ky)
(kx, ky)
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Question # 14
The additive inverse of 2/3 is
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3/2
-2/3
-3/2
0
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Question # 15
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Question # 16
If you are looking someone on the ground from the top of a hill the angle formed is called angle of _______;
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Elevation
Depression
Right angle
None off these
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Question # 17
The 6th term of the sequence 7,9,12,16......is
Choose an answer
27
32
20
19
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Question # 18
If Cos
θ
=0, then
θ
= ______
Choose an answer
n
π
/2
(2n + 1)
π
/2
(2n - 1)
π
/2
(4n + 1)
π
/2
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Question # 19
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Question # 20
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Question # 21
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2
5
7
None of these
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Question # 22
If n(X) = 18, n(X∩Y) = 7, n(X∪ Y) = 40 then n(Y) =
Choose an answer
1
12
5
29
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Question # 23
H
1
, H
2
, H
3
, .... H
n
are called n harmonic means between a and b if a, H
1
, H
2
, H
3
, ... H
n
b are in
Choose an answer
H.P.
G.P.
A.P.
None of these
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Question # 24
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Question # 25
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Question # 26
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184
none of these
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Question # 27
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An empty set
Universal set
A singleton set
None of these
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Question # 28
The fifth term of the sequence a
n
= 2n + 3 is ______
Choose an answer
13
-13
8
3
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Question # 29
If Z = (1,2), then Z
-1
=?
Choose an answer
(0.2, 0.4)
(-0.2 ,0.4)
(0.2,-0.4)
(-0.2,-0.4)
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Question # 30
The probability to get an odd number in a dice thrown once is
Choose an answer
1/2
1/6
1/3
2
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Question # 31
If P is a proposition then its negative is denoted by
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