Question # 1

Two forces each of the magnitude F act perpendicular to each other. The angle made by the resultant force with the horizontal will be:

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30°

45°

60°

90°

The change of order of vectors in a dot product of two vectors:

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Changes its value

Doesn't change it's value

Changes the direction product quantity

None of these

Unit vector is used to specify:

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Magnitude of a vector

Dimensions of a vector

Direction of a vector

Position of a vector

If a vector lies in second quadrant, than B_xand B_yare:

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-,+

+,-

+,+

-,-

The magnitude of the resultant of two forces may be increased by:

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Increasing the angle between them

Decreasing the angle between them

Drawing a triangle to represent them

None of these

Parallel vectors of same magnitudes:

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Are equal

Are unequal

When added give the some equal to zero

Give the answer equal to zero

Two forces of 10N and 8N are applied simultaneously to a body. The maximum value of their resultant is:

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20 N

-2 N

18 N

36 N

If two forces of magnitudes 3.5 and 2.5 N act on a body such that the angle between the forces is zero, then magnitude of the resultant will be:

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1.0 N

6 N

3.5 N

12 N

By convention, torques producing clockwise rotation are taken as:

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Positive

Nagative

Zero

None of these

Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:

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2 N

- 2 N

18 N

36 N

The magnitude of resultant of three vectors is 3. Its x-component is one, y-component is two, then its z-component is:

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0

1

2

3

A force of 5 n is acting Y-axis. Its component along X-axis is:

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7 N

5 N

Zero

10 N

The direction of a vector in space requires:

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X-axis

X and Y-axes

XYZ axes

Y and Z-axes

A person starts his journey from a point 0, travels 4 Km SW, then 4 Km NW, and finally 4 Km north-east. At what distance is he now from point 0?

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0 Km

4 Km

8 Km

12 Km

The vector is space has:

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One Component

Two Compnents

Three Components

Non of these

A vector which has magnitude 'one' is called:

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Resultant vector

A unit vector

Position vector

None of these

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ECAT Pre General Science Physics Chapter 2 Vectors and Equilibrium Online Test MCQs With Answers

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