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Online Tests
Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
The sum of coefficients in the binomial expansion equals to
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2
2
n+1
2
n-1
2
n
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Question # 2
The distance of the points (3, 4, 5) from y-axis is
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Question # 3
Cofactor of an element aij denoted by Aij is
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(-2)i+j
Mij
(-1)i+j Mij
None of above
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Question # 4
The range of the principle cos function is
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Question # 5
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0
1
1/2
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Question # 6
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a cos(ax + b) + c
- a cos(ax + b) + c
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Question # 7
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quadrant I
quadrant II
quadrant III
quadrant IV
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Question # 8
(-28,12) divides the join of A(-6,3) and B(5,-2) in ratio
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1:2
3:2
2:3
2:1
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Question # 9
The value of the expression sin
θ
+ cos
θ
lies between
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Question # 10
Sin 45° = ______
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Question # 11
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Rule of quotient of fraction
Golden rule of fraction
Rule for product of fraction
Principle for equality of fraction
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Question # 12
The multiplicative inverse of (a,b) is
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Question # 13
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184
none of these
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Question # 14
The coefficient of xn in the expansion of (1-2x)-1 is
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(-1)n2n
2n
(-1)(n+1)xr
(n+1)2n
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Question # 15
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Question # 16
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(1, 3)
(-1, -3)
(1, -3)
(-1, 3)
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Question # 17
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15/23
7/15
7/8
15/7
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Question # 18
Name the property used in 4 + 9 = 9 + 4
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Associative property of addition
Commutative property of addition
Distributive property
Additive identity
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Question # 19
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-3
-7
1
0
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Question # 20
A monoid (G, *) is said to be group if
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have identity element
is commutative
have inverse of each element
None of these
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Question # 21
(x + 2)
2
= x
2
+ 4x + 4 is
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A linear equation
A cubic equation
A quadratic equation
None
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Question # 22
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none of these
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Question # 23
4/√49 is a
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Irrational Number
Prime Number
Rational number
Whole number
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Question # 24
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Question # 25
The set { 1 , -1} is closed w.r.t.
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Addition
Multiplications
Subtraction
None of these
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Question # 26
Gooch crucible is made of :
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Brass.
Porcelain.
Bronze.
Gold.
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Question # 27
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Question # 28
In a triangle ABC, if angle A = 72° , angle B = 48° and c = 9 cm then Ĉ is
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69°
66°
60°
63°
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Question # 29
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Question # 30
Any horizontal line divided the plane into
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Left half plane
Upper and lower half planes
Infinite number of horizontal liens
None of these
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Question # 31
If x
4
- 10x
2
- 2x + 4 is divided by x + 3, then the reminder is
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1
0
4
None of these
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