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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
The value of the expression 3 cosθ+ 4 sinθθlie between
Choose an answer
-7 and 7
-25 and 25
-1 and 1
-5 and 5
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Question # 2
Range of cot
θ
is
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(+
∞
to -
∞
)
(-1 to +1)
(-5 to +5)
Set of even numbers only
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Question # 3
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none of these
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Question # 4
If 5,7 and 9 are A.Ms between a and b, then a and b is equal to
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2 and 12
1 and 10
3 and 11
-7 and 2
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Question # 5
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11
61
1
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Question # 6
For a square matrix A, if A = At, then A is called
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Matrix
Transpose
Symmetric
Non-symmetric
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Question # 7
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sec 5x + c
- sec 5x + c
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Question # 8
The set (Z, +) forms a group
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Forms a group w.r.t. addition
Non commutative group w.r.t. multiplication
Forms a group w.r.t multiplication
Doesn't form a group
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Question # 9
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A complex number
A rational number
A natural number
An irrational number
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Question # 10
The sum of all odd numbers between 100 and 200 is
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6200
7500
6500
3750
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Question # 11
For an A.P common difference d
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Can be zero
May or may not zero
Cannot be zero
None of these
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Question # 12
Six boys and 3 girls are to be seated at random, in a row, for a photograph. The probability that no two girls will sit together is
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1/12
1/6
5/12
7/12
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Question # 13
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Question # 14
The two lines y = 2x and x =2y are
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Parallel
Perpendicular
Equally inclined with axes
Congruent
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Question # 15
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Question # 16
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-1
0
1
Undefined
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Question # 17
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Question # 18
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None of these
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Question # 19
The maximum value of 12 sin
θ
-9 sin
2
θ
is x
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3
4
5
None of these
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Question # 20
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 # 21
If a, b, c are in AP., a, b, c are in G.P. then A, m
2
b, c are in
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A.P.
G.P.
H.P.
None of these
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Question # 22
(a,b) +(-a,-b) =
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(0,0)
(a,b)
(-a,-b)
(1,1)
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Question # 23
the latus rectum of the parabola x
3
= -4ay is:
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x = a
y = -a
x = -a
y = 0
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Question # 24
Vector
i
=
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[1,0]
[0,1,0]
[0,0,1]
None of these
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Question # 25
The set of natural no. is closed under
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multiplication
subtraction
difference
division
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Question # 26
The angle of elevation of the top of a tree from a point 17 meters from is foot is 42
𝜊
The height of the tree is
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12m
21m
17m
15m
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Question # 27
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A,. B, C are coincident
A, B, C are collinear
Both A and B
None of these
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Question # 28
If distance between (a,2) and (0,0) is 2 then a = _______
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0
2
4
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Question # 29
How many necklaces can be made from 6 beads of different colours?
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120
60
24
15
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Question # 30
(a,0) x (c, 0) =
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(0,ac)
(ac, 0)
(0,0)
(a, c)
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Question # 31
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0
1
-1
None of these
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