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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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Question # 2
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Question # 3
No term of a geometric sequence can be
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0
1
2
3
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Question # 4
∀a,b ε R, ab = be is a
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Commutative law of multiplication
Closure law of multiplication
Associative law of multiplication
Multiplicative identity
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Question # 5
The equation of the normal to the circle x
2
+ y
2
= 25 at (4, 3) is
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3x - 4y =0
3x - 4y =5
4x + 3y = 5
4x + 3y = 25
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Question # 6
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Question # 7
When a selection of object is made without paying regard to the order of selection, it is called
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Sequence
Series
Combination
Permutation
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Question # 8
In an A.P,a +(n-a)d is
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1st term
General term
Last term
None of these
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Question # 9
The sum of n terms of a series is denoted by
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d
n
S
n
a
n
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Question # 10
The multiplicative inverse of -3i is
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3i
-3i
-1/3i
1/3 i
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Question # 11
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Lies between 4 and 7
Lies between 5 and 9
Has no value between 4 and 7
Has no value between 5 and 9
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Question # 12
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Two real roots
Two positive roots
Two negative roots
One positive and one negative root
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Question # 13
The value of sin 28°cos 17°+cos 28°sin 17°is
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Question # 14
f(x)g(x)- ∫g(x) f′(x) dx is equal to
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∫f(x)g′(x)dx
∫f′(x)g(x)dx
∫f′(x)g(x)′dx
∫f(x)g(x)dx
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Question # 15
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Principle of equality of Fractions
Rule for product of fraction
Golden rule of fraction
Rule of quotient of Fraction
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Question # 16
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Y = -x log x -x + c
Y = x log x + x
Y = x log x - x + c
None of these
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Question # 17
Period of cot x is ______
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Question # 18
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Question # 19
Ifπ≤x≤2π, then cos-1 (cos x)=
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cos x
-x
1/x
-x
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Question # 20
How many 6-Digit number can be formed without repairing any digit from the digits 0,1,2,3,4,5
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720
600
120
6-5!
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Question # 21
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A
B
A'B'
B'A
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Question # 22
if a
1
=3, d=7 and a
n
=59 , then the number of terms in A.P is
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7
9
11
13
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Question # 23
Which shape of the following objects are approximately parabolic ares?
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Light reflectors
Force
Weight of the pendul
None of these
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Question # 24
If A and B are two sets then any subset R of B x A is called
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relation on A
relation on B
relation from A to B
relation from B to A
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Question # 25
A joint equation of the lines through the origin and perpendicular to the lines ax2 +2hxy +by2 =0 is indentical is ax2 +2hxy +by2 =0 if
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h2 = ab
a + b =0
a = b
a≠ b
a = b = 0
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Question # 26
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Question # 27
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Question # 28
The corner point of the boundary lines, x-2y
2x + y = 2 is:
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(2,6)
(6,2)
(-2,2)
(2,-2)
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Question # 29
The line y = 4x + c touches the hyperbola x
2
- y
2
= 1 if
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Question # 30
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Question # 31
The position vector of a point (x, y) in xy plane is
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none of these
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