ECAT Pre Computer Science Chapter 2 MCQ Test With Answer

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

Try The 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

The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component:

Question # 2

By convention, torques producing clockwise rotation are taken as:

Question # 3

The sum of two or more vectors is equal to a single vector which is called:

Question # 4

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

Question # 5

Two forces each of 10 N act on a body, if the force are inclined at 30° and 60° respectively with x-axis, then x-component of their resultant is:

Question # 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:

Question # 7

The direction of a vector in space requires:

Question # 8

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

Question # 9

If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:

Question # 10

Two vectors to be combined have magnitudes of 60 N and 35 N. Pick the possible answer:

Question # 11

Cosine of an angle is positive in:

Question # 12

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

Question # 13

Parallel vectors of same magnitudes:

Question # 14

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

Question # 15

The resultant of two velocities 3 m/sec and 400 cm/sec making an angle 90° with each other is:

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 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°
2 If x-component of a vector is -3 N and y-component is 3 N, then angle of resultant vector will x-axis is:
A. 45°
B. 315°
C. 135°
D. 225°
3 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
4 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
5 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
6 All trigonometric functions (sine, cosine, tangent etc) are positive in:
A. 1st quadrant
B. 2nd quadrant
C. 3rd quadrant
D. 4th quadrant
7 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass
8 The vector is space has:
A. One Component
B. Two Compnents
C. Three Components
D. Non of these
9 Scalar product is also called:
A. Cross product
B. Dot product
C. Product scalar
D.
Product vector
10 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

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