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Online Tests
ECAT Mathematics Online Test MCQs With Answers
Question # 1
Which of the following is a scalar.
Choose an answer
electric field
magnetic field
weight
mass
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Question # 2
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3/8
7/8
1/8
None
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Question # 3
For non-trival solution |A| is
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A = 0
A
t
= 0
|A| = 0
None of these
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Question # 4
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Question # 5
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none of these
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Question # 6
For any set X, X∪X is
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X
X'
Φ
Universal Set
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Question # 7
The minimum value of the quadratic function f(x) = 5 x 2-11,is
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7
-7
6
-11
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Question # 8
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Question # 9
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0
1
-2
10
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Question # 10
An infinite arithmetic series is always
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Convergent
Oscillatory
Divergent
None of these
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Question # 11
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Question # 12
A line segment whose end points lie on a circle is called
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the secant of the circle
the arc of the circle
the chord of the circle
the circumference of the circle
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Question # 13
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Question # 14
Rational number is a number which can be written as a terminating decimal fraction or a
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Non-terminating decimal fraction
Non-recurring
Recurring decimal fraction
a, b and c
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Question # 15
A triangle which is not right is called an ______ triangle
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Acute
Obtuse
Oblique
None of these
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Question # 16
The area of the circle centred at (1,2) and passing through (4,6) is
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30 πsq.units
5π sq.units
15π sq.units
25π sq.units
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Question # 17
The sum if 1,3,5,7,9........ up to 20 terms is
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400
472
563
264
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Question # 18
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0
1
-1
None
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Question # 19
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0
1
-1
none of these
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Question # 20
The coefficient of x
10
in the expansion (x
3
+3/x
2
)
10
is
Choose an answer
1700
17023
17027
17010
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Question # 21
Probability of an impossible event is
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0
-1
1
∞
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Question # 22
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Closure law of addition
Associative law of addition
Commutative law of multiplication
Associative law of multiplication
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Question # 23
For each even natural number n (n
2
-1) is divisible by
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6
3
4
8
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Question # 24
A sequence is a function whose domain is
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N
Subset of N
R
None of these
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Question # 25
Period of Sine and Cosine function is
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π
2
π
-
π
-2
π
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Question # 26
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Question # 27
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A prime number
An integer
A whole number
An irrational number
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Question # 28
√23 is
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A rational number
A irrational number
An even integer
A factor of 36
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Question # 29
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Question # 30
If n is a positive integer then n! is
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(n - 1) (n - 2) .....3,.2.1
n(n - 1) (n - 2) ...3.2.1
n(n - 1 ) ( n -2) ... 3
None of these
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Question # 31
For all points (x,y) in second quadrant
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x > 0 , y < 0
x > 0 , y > 0
x < 0 , y < 0
x < 0 , y > 0
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