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Online Tests
ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
Choose an answer
Only one real solution
Exactly three real solution
Exactly one rational solution
Non-real roots
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Question # 2
The distance between the points (1, 2) and (2, 1) is
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3
6
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Question # 3
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 # 4
The null vector is regarded to be perpendicular to
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Every vector
In some cases
Both a b
None
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Question # 5
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0
1
-1
none of these
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Question # 6
If n∈Z+ then(a+x)n is a/an
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Finite series
Convergent series
Infinite series
Divergent series
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Question # 7
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x =0, y =4
x = -1, y = 2
x = 2, y = 3
x = 3, y = 4
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Question # 8
A non-homogeneous linear system AX = B has no solution if
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|A| = 0
|A|≠ 0
Rank (a) = no of variables
Rank > no of variables
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Question # 9
In one hour, the hour hand of a clock turns through
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Question # 10
Domain of cosh x is
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R
R -{0}
[1,∞)
[0,∞)
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Question # 11
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Question # 12
A non-terminating non_recurring decimal represents an
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Irrational no
Both a & c
Rational no
None of these
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Question # 13
Two circles are said to be concentric if they have
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same radius
same chord
same centre
same diameter
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Question # 14
s > t then
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(s - t)
2
> (t - s)
2
(s - t)
2
< (t - s)
2
(s - t)
2
= (t - s)
2
None
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Question # 15
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Biconditional
Implication
Antecedent
Hypothesis
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Question # 16
The term involving x
4
in the expansion (3-2x) is
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217x
4
15120x
4
313x
4
-25x
4
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Question # 17
The position vector of any point in space is
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Question # 18
We also the system of non-homogeneous linear equations by
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a and b
b and c
c and a
a, b and c
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Question # 19
The equation of the circle witch centre (-3, 5) and radius 7 is
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(x-3)
2
+ (y+5)
2
= 7
2
(x-3)
2
+ (y-5)
2
= 7
2
(x+3)
2
+ (y+5)
2
= 7
2
(x+3)
2
+ (y-5)
2
= 7
2
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Question # 20
Choose an answer
3/4
r
v
None of these
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Question # 21
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Question # 22
The constant distance of all points of the circle from its centre is called the
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Radius of the circle
Secant of the circle
Chord of the circle
Diameter of the circle
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Question # 23
If there is one-one correspondence between A and B, then we write.
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A = B
A⊆ B
A⊇ B
A ∼ B
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Question # 24
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Question # 25
The equation x
2
+ y
2
+2g +2fy + c =0 represents a circle whose centre is :
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(g,f)
(-g,-f)
(2g ,2f)
(-2f ,-2g)
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Question # 26
Number of selections of n different things out of n
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1
nPr
n!
nPr
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Question # 27
The eccentricity of ellipse becomes zero, then it takes the form of:
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a parabols
a straight line
a circle
None of these
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Question # 28
The difference of two consecutive terms of an A.P is called the
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Common difference
Common ratio
Geometric series
Geometric mean
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Question # 29
If f(x)= x
3
then f(-2) is
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-2
-4
-8
8
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Question # 30
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Question # 31
The solution set of x < 4 is
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-
∞
< x < 4
-
∞
> x > 4
-
∞
< x < 2
-
∞
> x > 2
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