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

Question # 2

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

Question # 3

The perpendicular distance from the axis of rotation to the line of action of force is called:

Question # 4

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

Question # 5

Parallel vectors of same magnitudes:

Question # 6

A vector which has magnitude 'one' is called:

Question # 7

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

Question # 8

The vector is space has:

Question # 9

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

Question # 10

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

Question # 11

For measuring the angle between two vectors graphically, we join:

Question # 12

Torque is also called:

Question # 13

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 # 14

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

Question # 15

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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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 The direction of a vector in space requires:
A. X-axis
B. X and Y-axes
C. XYZ axes
D. Y and Z-axes
2 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°
3 The perpendicular distance from the axis of rotation to the line of action of force is called:
A. Moment arm
B. Moment of a force
C. Torque
D. Non of these
4 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
5 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass
6 For measuring the angle between two vectors graphically, we join:
A. Tails of both the vectors
B. Tail of one vector with the head of other
C. Heads of both the vectors
D. None of these
7 If the vector 5 N lies along with x-axis, then its component along y-axis will be:
A. Zero
B. 5 N
C. 7 N
D. 10 N
8 The sum of two or more vectors is equal to a single vector which is called:
A. Component vector
B. Resultant vector
C. Product vector
D. None of these
9 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:
A. 20 N
B. 13.66 N
C. 10 N
D. 8.66 N
10 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

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