Cam and Follower MCQ

1. Cam converts the rotary motion into

1. rotary motion
2. translatory motion
3. both rotary and translatory motions
4. none of these

2. The point on the Cam with maximum pressure angle is known as the

1. Pitch point
2. Cam centre
3. Prime point
4. Trace point

3. For simple Harmonic Motion of a cam follow a cosine curve represents

1. Displacement diagram
2. Velocity diagram
3. Acceleration diagram
4. All the above

4. The pressure angle in a cam depends on

1. the angle of ascent
2. the lift of the follower
3. offset between centre lines of cam and follower
4. all of the above

5. Normally cam moves with

1. constant velocity
2. variable acceleration
3. variable velocity
4. none of these

6. In cams, the point on pitch curve which indicates the maximum angle is called

1. Trace point
2. Pitch point
3. Ball point
4. Pin point

7. The contact between cam and follower is to form a

1. lower pair
2. higher pair
3. sliding pair
4. rolling pair

8. The pressure angle and the base circle in a cam should be

1. both as big as possible
2. both as small as possible
3. as big as possible and as low as possible respectively
4. as small as possible and as big as possible respectively

9. Cam used for low and moderate speed engines should move with

1. uniform velocity
2. uniform acceleration
3. harmonic motion
4. cycloidal motion

10. Throw of a cam is the maximum distance of the follower from

1. Base circle
2. Pitch circle
3. Root circle
4. Prime circle

11. Angle moved by the cam during which follower remains at its highest position is called

1. Angle of dwell
2. Angle of descent
3. Angle of ascent
4. Angle of action

12. For low and moderate speed engines, the cam follower should move with

1. simple harmonic motion
2. uniform velocity
3. uniform acceleration and retardation
4. cycloidal motion

13. During the dwell period of the cam, the followers

1. remains at rest
2. moves in a straight line
3. moves with uniform speed
4. does simple harmonic motion

14. The cam follower extensively used in air-craft engine is

1. knife edge follower
2. flat faced follower
3. spherical face follower
4. roller follower

15. The cam follower generally used in automobile engines is

1. knife edge follower
2. flat faced follower
3. spherical faced follower
4. roller follower

16. Which of the following is not the shape of Cam?

1. Spiral
2. Knife-edge
3. Globoid
4. Conjugate
5. Spherical

17. The pitch point on a cam is

1. the point on cam pitch circle having the maximum pressure angle
2. any point on prime circle
3. any point on pitch curve
4. a point at a distance equal to pitch circle radius from the center

18. The circle passing through the pitch point and concentric with the base circle of Cam profile is known as

1. Prime circle
2. Pitch circle
3. Base circle
4. Trace circle

19. Throw of a cam is the maximum distance of the follower from

1. Base circle
2. Pitch circle
3. Root circle
4. Prime circle

20. Consider the following statements

1. Base circle
2. Pitch circle
3. Prime circle
4. Outer circle
5. Angle of ascent

Out of the above, the cam size depends upon

1. i, iii and v
2. ii
3. i, iii and iv
4. i and iii
5. i