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Online Tests

ECAT Pre General Science Mathematics Online Test MCQs With Answers

Question # 1

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Question # 2

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x

y

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Question # 3

The magnitude of vector a 2i-7j is

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√23

√43

3

√53

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Question # 4

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π

2π

π/2

None of these

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Question # 5

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none of these

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Question # 6

The two different parts of the hyperbola are called its

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Vertices

Directrices

Nappes

Branches

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Question # 7

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36

360

24

6

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Question # 8

The equation of the normal to the circle x²+ y²= 25 at (4, 3) is

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3x - 4y =0

3x - 4y =5

4x + 3y = 5

4x + 3y = 25

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Question # 9

The center of the sphore which passes thro' (a, 0, 0), (0, b, 0), (0, 0, c) and (0, 0, 0) is

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Question # 10

Which of the following is factor of p(x) =2x3 +3x2+3x+2 ?

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x+1

2x+1

3x+1

2x-1

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Question # 11

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0

1

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Question # 12

cos2a=______;

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cos2 a-sin2 a

2cos2 a-1

1-2 sin2 a

All of these

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Question # 13

The number of terms in the expansion of (a + b)⁹is

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10

11

9

12

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Question # 14

If P, Q, R be the A.M., G.M., H.M. respectively between any two rational numbers a and b, then P - Q is

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Question # 15

The roots of ax2 + bx + c = 0 are always unequal if

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b2 - 4ac = 0

b2- 4ac ≠ 0

b2- 4ac > 0

b2- 4ac ≥ 0

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Question # 16

In (x + iy), y is called as

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Imaginary part

Complex number

Real part

None of above

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Question # 17

A function F(x) is called even if

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F(x) = F (-x)

F(x) = F(-x)

F(x) = -F(x)

2F(x) = 0

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Question # 18

The mid point of the line segment joining the points A(3,1) and B(-2,-4) is

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(1, -3)

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Question # 19

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Question # 20

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2

4

8

12

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Question # 21

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Always negative

Zero

Always positive

Infinity

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Question # 22

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Question # 23

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Cos 2x = sin 4y

Cos 4y = cos 2x

Cos 3y = sin 4x

None of these

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Question # 24

If f(x) = x²-x then f(1) is

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0

1

2

3

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Question # 25

1⁰= ______

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Question # 26

The domain of the function x/x² -4 is given by

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R

R + 2

[R - (+2)

R-4

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Question # 27

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Question # 28

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Question # 29

πis the period of the function

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|sin x| + |sin x|

sin⁴x + cos x

sin (sin x) + sin (cos x)

None of these

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Question # 30

A key ring is an example of

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Permutation

Circular permutation

Combination

None

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Question # 31

Express as a sum or difference: 2 sin 5θcosθ

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cos 4θ- cos 2θ

sin 4θ+ sin 2θ

cos 4θ+ cos 2θ

sin 4θ- sin 2θ

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