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ECAT Pre General Science Mathematics Online Test MCQs With Answers
Question # 1
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1
0
5
2
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Question # 2
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15
15 i
-15 i
-15
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Question # 3
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Question # 4
If Z
1
= 1 + i, Z
2
= 2+3i, then |Z
2
- Z
1
| = ?
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Question # 5
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Question # 6
Which of the following is not a unit vector
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[1, 1, 1]
[0, 1, 0]
[0, 0, 1]
[1, 0, 0]
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Question # 7
The distance of the point (-2 , -3) from x-axis is
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2
-3
3
5
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Question # 8
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Commutative law of multiplication
Closure law of multiplication
Associative law of multiplication
Multiplication identity
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Question # 9
(ABC)' =
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CBA'
CBA
C' B' A'
None of these
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Question # 10
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cot x + c
tan x + c
-cot x + c
-tan x + c
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Question # 11
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Question # 12
For which of the following ordered pairs (s, t) is s + t > 2 and s - t < -3?
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(3, 2)
(2, 3)
(1, 8)
(0, 3)
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Question # 13
In the interval 0≤ x ≤ π, the sine is
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Not a function
Not defined
Infinity
Not one-to-one function
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Question # 14
The number of subsets of B = {1,2,3,4,5}
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10
32
16
5
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Question # 15
The equation of a line parallel to the tangent to the circle x
2
+ y
2
= 16 at the point (2, 3) and passing thro' the origin is
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2x + 3y = 0
2x - 3y = 0
3x + 2y = 0
3x - 2y = 0
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Question # 16
1/3 is a decimal
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Recurring
Terminating
Non-terminating
None of the above
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Question # 17
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28 / 81
28 / 243
81 / 28
243 / 82
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Question # 18
The factorial of a positive integers is a (an)
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Rational number
Positive integer
Real number
None
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Question # 19
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Question # 20
Which of the following has the same value as i
113
?
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i
-1
-i
1
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Question # 21
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 # 22
The value of sin
2
20° + sin
2
70° is equal to
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1
2
-1
1/2
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Question # 23
The order of the matrix A is 3 x 5 and that of B is 2 x 3.The order of the matrix BA is
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2 x 3
3 x 2
2 x 5
5 x 2
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Question # 24
The lines l1and l2intersect. The shortest distance between them is
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Positive
Negative
Zero
Infinity
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Question # 25
The locus of the point of intersection of tangents to an ellipse at two points, sum of whose eccentric angles is constant is
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A parabola
A circle
An ellipse
A st. line
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Question # 26
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Question # 27
If you are looking a high point from the ground, then the angle formed is
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Angle of elevation
Angle of depression
Right angle
Horizon
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Question # 28
The number of standard parabolic functions are is
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4
2
3
1
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Question # 29
tan h x = _________
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Question # 30
∫x/Sin
2
x dx is equal to:
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x cot x + ln|sinx |
-x cot x - ln|sinx |
x cot x - ln|sinx |
x. tan x- ln|secx |
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Question # 31
The set of integer is
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Finite group
A group w.r.t addition
A group w.r.t multiplication
Not a group
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