Explore topic-wise MCQs in Machine Kinematics.

This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Kinematics knowledge and support exam preparation. Choose a topic below to get started.

1.

A body of mass 1 kg is kept on a rough surface is being pulled by a force of 2N, what will be the value of coefficient of friction if it just begins to move. Take g = 10m/s2.

A. 0.2
B. 0.25
C. 0
D. 0.4
Answer» B. 0.25
Discussion
2.

A body, resting on a rough horizontal plane required a pull of 181 N inclined at 30° to the plane just to move it. It was recorded that a push of 220 N inclined at 30°° to the plane just moved the body. Estimate the coefficient of friction.

A. 0.17
B. 0.2
C. 0.5
D. 0.75
Answer» B. 0.2
Discussion
3.

A body, resting on a rough horizontal plane required a pull of 181 N inclined at 30° to the plane just to move it. It was recorded that a push of 220 N inclined at 30° to the plane just moved the body. Estimate the weight of the body in N.

A. 2000N
B. 2500N
C. 1000N
D. 4000N
Answer» D. 4000N
Discussion
4.

A body of mass 1 kg is kept on a rough surface having coefficient of friction = 0.25 being pulled by a force of 2N, after how long will the body come to rest again?

A. 2s
B. 2.5s
C. 0s
D. 4s
Answer» D. 4s
Discussion
5.

A body of mass 1 kg is kept on a rough surface having coefficient of friction = 0.25 being pulled by a force of 2N, which frictional force will be acting on the body?

A. Limiting friction
B. Static friction
C. Kinetic friction
D. Rolling friction
Answer» C. Kinetic friction
Discussion
6.

A body of mass 1 kg is kept on a rough surface having coefficient of friction = 0.25 being pulled by a force of 2N, what will be the value of friction force in N?

A. 2
B. 2.5
C. 0
D. 4
Answer» B. 2.5
Discussion
7.

What is the maximum value of static friction?

A. Limiting friction
B. 0
C. Rolling friction
D. Kinetic friction
Answer» B. 0
Discussion
8.

Static frictional force is equal to the coefficient of friction if the normal reaction is unity.

A. True
B. False
Answer» C.
Discussion
9.

For a body on an inclined plane, the value of coefficient of friction is equal to _____ (θ is the angle of friction)

A. Tanθ
B. Cotθ
C. Sinθ
D. Cosθ
Answer» B. Cotθ
Discussion
10.

The angle at which the body just begins to slide down an incline is known as ________

A. Angle of inclination
B. Angle of motion
C. Angle of repose
D. Angle of stability
Answer» D. Angle of stability
Discussion
11.

Which of the following is true regarding the limiting friction?

A. Its value is equal to the force applied in the opposite direction which tends to move the body
B. Its value is equal to the force applied in the opposite direction which moves the body
C. Its value is equal to μ.N
D. It is equal to the normal reaction
Answer» B. Its value is equal to the force applied in the opposite direction which moves the body
Discussion
12.

The ratio of frictional force to normal reaction is known as _______

A. Coefficient of friction
B. Coefficient of restitution
C. Coefficient of inertia
D. Coefficient of force
Answer» B. Coefficient of restitution
Discussion
13.

If the area of contact between the two surfaces is increased by two times, what will be the effect of it on the force of friction?

A. Increases by two times
B. Decreases by two times
C. Remains same
D. Depends on the surface
Answer» D. Depends on the surface
Discussion
14.

The force of friction is independent of the roughness of the surface.

A. True
B. False
Answer» C.
Discussion
15.

What is the direction in which the limiting friction acts?

A. Opposite to the direction in which the body tends to move
B. Opposite to the direction in which the body moves
C. In the direction in which the body tends to move
D. In the direction in which the body moves
Answer» B. Opposite to the direction in which the body moves
Discussion