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NAT I Engineering Mathematics MCQs With Answers

Question # 1

The angle a (0° < a< 180°) measured counterclockwise from positive x-axis to a non-horizontal straight line / is called the

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Rotation

Inclination

Radian

None

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Question # 2

If the angle between two vectors with magnitude 8 and 2 is 60° then their scalar product is

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Question # 3

The cube roots of unity ω = -------------------------

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1-i √-3 / 2

-1+i √-3 / 2i

-1+i √3 / 2

1+i √3 / 2

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Question # 4

If you 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 # 5

In which quadrant is the solution of the equation sin x - 1 = 0

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II quadrants

II and III quadrants

III and Iv quadrants

I quadrant

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Question # 6

There are 30 Red, 20 Green and some Blue bells in a bag if the probability of finding a Red ball is 1/3,how many are red balls in the bag

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120

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Question # 7

Period is Tan x/5 is

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5π

4π

2π

π/5

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Question # 8

What is the domain of y= Sin^-1 x?

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-1 ≤ x ≤1

1 ≤ x ≤ 1

0 ≤ x ≤ π

-π/2 ≤ x ≤ π/2

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Question # 9

If the diagonal of a square has coordinates (1,2) and(5,6) the length of a side is

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Question # 10

√23 is

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A rational number

A irrational number

An even integer

A factor of 36

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Question # 11

Cos 315° =

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0.707

0.5

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