ECAT Pre Computer Science Chapter 2 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 2 Vectors and Equilibrium

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ECAT Physics Chapter 2 Vectors and Equilibrium

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Question # 1

Unit vector is used to specify:

Question # 2

The driection of vector si space is specified by:

Question # 3

If a vector lies in second quadrant, than Bxand Byare:

Question # 4

A vector of magnitude 5 N is added to a vector of magnitude 8 N while the orientations are changeable. Range of their possible sum will be very from:

Question # 5

All trigonometric functions (since, cosine tangent etc. ) are positive in:

Question # 6

A vector of magnitude 5 N is added to a vector of magnitude 8 N while the orientations are changeable. Range of their possible sum will be very from:

Question # 7

Which of the following is scalar quantity?

Question # 8

An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:

Question # 9

When a vector is multiplied by a negative number, its direction:

Question # 10

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?

Question # 11

The vector in space has:

Question # 12

Choose the set of physical quantities, which have both numerical and directional properties:

Question # 13

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

Question # 14

Cosine of an angle is positive in:

Question # 15

By convention, torques producing clockwise rotation are taken as:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 Cosine of an angle is positive in:
A. 2nd quadrant
B. 3rd quadrant
C. 4th quadrant
D. All of these
2 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass
3 All trigonometric functions (sine, cosine, tangent etc) are positive in:
A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
4 The vector is space has:
A. One Component
B. Two Compnents
C. Three Components
D. Non of these
5 Tick the correct answer:
A. Torque is a vector quantity
B. Torque is the turning effect of a force
C. Torque is called moment of a force
D. All of above
6 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:
A. 1.0 N
B. 6 N
C. 3.5 N
D. 12 N
7 Two vectors having different magnitudes:
A. Have their directions opposite
B. May have their resultant zero
C. Cannot have their resultant zero
D. None of these
8 When the magnitude of two component vectors are equal to that of their resultant, then the angle between the components is:
A. 60°
B. 90°
C. 120°
D. 150°
9 The magnitude of the resultant of two forces may be increased by:
A. Increasing the angle between them
B. Decreasing the angle between them
C. Drawing a triangle to represent them
D. None of these
10 An vector of 10 N makes an angle of 45° with x-axis. Angle between its rectangular components with be:
A. 45°
B. 90°
C. 135°
D. Zero

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