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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
The period sin
2
θ
is
Choose an answer
π
2
π
2
π
π/2
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Question # 2
The sum of the cubes of three consecutive natural number is divisible by
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9
6
5
10
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Question # 3
An open sentences formed by using the sign of equality '=' is called ______
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An identity
An equation
A polynomial
None of these
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Question # 4
In a country 55% of the male population has houses in cities while 30% have houses both in cities and in villages find the percentage of the population that has houses only in villages
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45
30
25
50
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Question # 5
The point on y
2
= 4ax nearest to the focus has its abciassae equal to
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-a
a
a/2
0
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Question # 6
The obtuse angle between lines = -2 and y = x +2 is
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120°
135°
150°
140°
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Question # 7
The roots of px2 - (p-q)x-q=0 are
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equal
Irrational
Rational
Imaginary
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Question # 8
If A is a non singular matrix then A
-1
= ______
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Question # 9
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Question # 10
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Question # 11
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6x + 2 + c
6x + x
2
+ c
6x
3
+ x
2
+ x
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Question # 12
The additive inverse of a matrix A is
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None of these
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Question # 13
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Question # 14
If A = |aij| is (m x n) matrix then transpose of A is of the order
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m x m
m x n
n x n
n x m
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Question # 15
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1, 2, 3
1, 5, 9
2, 5, 8
3, 6, 9
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Question # 16
Period of sin x is
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Question # 17
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a = 2, b = 3
a = 3, b = 2
a = 2, b = 1, 2
a = 3, b = 3
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Question # 18
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1
0
3
-1
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Question # 19
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(2x4)
(2x7)
(2x3)
(7x2)
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Question # 20
The tangents drawn from the point P to a circle are real and coincident if
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P is on the circle
P is inside the circle
P is outside the circle
none of these
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Question # 21
A sequence is a function whose domain is
Choose an answer
N
Subset of N
R
None of these
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Question # 22
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Question # 23
If the lower limit of an integral is a constant and the upper limit is a variable, then the integral is a
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Constant function
Variable value
Function of upper limit
All
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Question # 24
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N
r
2r
π
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Question # 25
the latus rectum of the parabola x
3
= -4ay is:
Choose an answer
x = a
y = -a
x = -a
y = 0
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Question # 26
202.04 is an example of
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Recurring decimals
Non-recurring decimals
Terminating decimals
None of above
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Question # 27
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Question # 28
2
π
+
θ
will have terminal side in Quad
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I
II
III
IV
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Question # 29
If A is a skew-symmetric matrix of order n and P, any square matrix of order n, prove that P' AP is
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Skew-symmetric
Symmetric
Null
Diagonal
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Question # 30
The multiplicative inverse of 2/3 is
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3/2
-2/3
-3/2
1
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Question # 31
Which is a proper rational fraction
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