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Online Tests

ECAT Pre General Science Mathematics Online Test MCQs With Answers

Question # 1

For any set X, X∪X is

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X

X'

Φ

Universal Set

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Question # 2

Arithmetic mean between a and b is

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Question # 3

If the circumference of a circle is divided into 360 congruent parts, the angle subtended by one part at the centre of the circle is

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1⁰

1'

1"

1 rad

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Question # 4

The graph of linear equation 2x + 3y = 10

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Parabola

Circle

Hyperbola

Straight line

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Question # 5

A statement which is either true or false is called

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Induction

Deduction

Propositicon

Logic

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Question # 6

f(x) = x³is:

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an odd function

an even function

an implicit function

a quadratic funtion

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Question # 7

2.333....is a

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Irrational no

Complex no

Rational no

None of these

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Question # 8

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(x, y)

(kx, y)

(x, ky)

(kx, ky)

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Question # 9

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Question # 10

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30°

60°

45°

None of these

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Question # 11

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In(x²- x + 1)⁴+ c

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Question # 12

Let A is a 3 x 3 matrix and B is its adjoint matrix. If |B| = 64, then |A| =

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Question # 13

The equation of the circle with centre (5, -2) and radius 4 is

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(x-5)²+ (y+2)²= 16

(x-5)²+ (y+2)²= 4

(x-5)²+ (y-2)²= 16

(x-5)²+ (y-2)²= 4

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Question # 14

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Question # 15

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Question # 16

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Question # 17

Which of the following integrals can be evaluated

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Question # 18

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A

A'

U

U'

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Question # 19

The set of rationals numbers between 0 and I is

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Finite

Null set

Infinite

None of these

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Question # 20

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Question # 21

The√ is used for the

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Positive square root

Negative square root

+ve and -ve square root

Whole number

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Question # 22

(n + 2) (n + 1)n in factorial form is

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Question # 23

The arbitrary constants involving in the solution can be determined by the given conditions. Such conditions are called

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Boundaries

Variable separable

Initial values

None

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Question # 24

The physical quantity which can be specified by a number alongwith unit is called a

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scalar

vector

constant

none of these

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Question # 25

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Question # 26

System of linear equation is inconsistent if

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System has no solution

System has one solution

System has two solution

None of above

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Question # 27

For every positive integers n 1+5+9+....+ (4n - 3) is

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n(2n - 1)

(2n - 1)

n - 1

n

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Question # 28

The order of the matrix A is 3 x 2 and that of B is 2 x 3. The order of the matrix BA is

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3 x 3

3 x 2

2 x 5

5 x 2

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Question # 29

The number of the diagonals of a 6 sided figure is

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15

21

9

6

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Question # 30

Five engineering, four mathematics, two chemistry books are placed on a table at random.The probability that the books of each kind are all together is

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Question # 31

Which of the following is factor of x11+a11, where n is an odd integer

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x-a

x+a

2x-a

2x+a

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