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

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

Question # 2

The vector in space has:

Question # 3

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 # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

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 # 9

Parallel vectors of same magnitudes:

Question # 10

Which of the following is scalar quantity?

Question # 11

Tick the correct answer:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

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ECAT Physics Chapter 2 Important MCQ's

Sr.# Question Answer
1 The rectangular components of a vector are equal in magnitude when the vector makes and angle _______with their x-component:
A. 0°
B. 30°
C. 45°
D. 60°
2 Torque is also called:
A. Momentum
B. Linear inertia
C. Moment of a force
D. Mass
3 The direction of vector in space is specified by:
A. One angle
B. Two angles
C. Three angles
D. None of these
4 Two forces of 10 N and 8 N are applied simultaneously to a body. the maximum value of their resultant is:
A. 2 N
B. - 2 N
C. 18 N
D. 36 N
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:
A. 20 N
B. 13.66 N
C. 10 N
D. 8.66 N
6 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
7 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
8 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
9 Cosine of an angle is positive in:
A. 2nd quadrant
B. 3rd quadrant
C. 4th quadrant
D. All of these
10 If a vector lies in second quadrant, than Bxand Byare:
A. -,+
B. +,-
C. +,+
D. -,-

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