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Mathematics ECAT Pre Engineering Online Test MCQs With Answers
Question # 1
If the angle of a triangle are in the ratio 2 : 3 : 7, the triangle is
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Obtuse
Acute
Right angle
Isosceles
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Question # 2
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Question # 3
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Question # 4
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Question # 5
Let A and B be two sets. If every element of A is also an element of B then
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Question # 6
If A = {2m/m
3
= 8 , m€ Z} then A =
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{1,8,27}
{4}
(2,4,6}
{2,16,54}
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Question # 7
One minute is denoted by
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1
0
1'
1"
None of these
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Question # 8
w
73
= ______
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0
1
w
w
2
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Question # 9
An equation of the form ax + by = k is homogeneous linear equation when:
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Question # 10
If c is a constant number and if f is the function defined by the equation f(x) =c for all values of x, then f is differentiable at every x and f is defined by the equation f(x)
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f
1
C
0
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Question # 11
The process of finding the unknown elements in triangle is called the
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solution of the triangle
Mean differnece
Engineering distance
angle of depressin
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Question # 12
The lines l1and l2intersect. The shortest distance between them is
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Positive
Negative
Zero
Infinity
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Question # 13
x is a member of the set [-1, 0, 3, 5] y is a member of the set {-2, 1, 2, 4} which is possible?
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x - y = -6
x - y < -6
x - y > -6
None
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Question # 14
∛8.6 is approximately equal to
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2.488
2.48
2.0488
2.05
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Question # 15
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An empty set
Universal set
A singleton set
None of these
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Question # 16
The transpose of a row matrix is a ______
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Zero matrix
Diagonal matrix
Column matrix
Row matrix
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Question # 17
The position vector of any point in space is
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Question # 18
x = -1 is in the solution of the inequality
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x + 5 < 0
2x + 3
<
0
x > 0
2x + 3 > 0
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Question # 19
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2 b
2 a
2 ab
a + b
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Question # 20
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2x - 3x + c
x
2
- 3x + c
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Question # 21
The value of p for which both the roots of the equation 4x2- 20x + (25p2+ 15 p - 66) = 0 are less than 2, lies in
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Question # 22
Number of ways of writing the letters of WORD taken all at a time is
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24
4
12
6
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Question # 23
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Question # 24
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Principle of equality of fractions
Rule for product of fractions
Golden rule for fractions
Rule for quotient of fractions
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Question # 25
The distance of the plane 2x - 3y + 6z + 14 = 0 from the origin is
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14
2
-2
11
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Question # 26
2x + 3y > 4 is a linear inequality in
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one variable
two variables
three variables
none of these
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Question # 27
sin[cot
-1
{cos(tan
-1
x)}]=
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Question # 28
If Z = (1,2), then Z
-1
= ?
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(0.2, 0.4)
(-0.2, 0.4)
(0.2, -0.4)
(-0.2, -0.4)
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Question # 29
30° = ______
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Question # 30
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Question # 31
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none of these
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