21. In what direction the follower moves in a radial cam?
- In a direction perpendicular to the cam axis
- In a direction parallel to the cam axis
- In any direction irrespective of the cam axis
- Along the cam axis
22. Which of the following is not related to the cam profile?
- Prime circle
- Trace point
- Addendum
- Base circle
23. A cam in which the follower reciprocates or oscillates in a plane parallel to the axis of the cam is known as
- Cylindrical cam
- Circular cam
- Reciprocating cam
- Tangent cam
24. Following type of cam is used for high speed
- Involute
- Cycloidal
- Harmonic
- Falt
25. The pressure angle of a flat footed follower in contact with a circular arc cam is
- 3°
- 5°
- -1°
- 0°
26. The lateral taper in the cam profile is provided
- to allow proper flow of lubricants
- to ease the machining process of cam profile
- to reduce power consumption
- to reduce stress concentration at follower interface
27. Kinematic pair constituted by cam and follower mechanism is
- Higher and open type
- Lower and open type
- Lower and closed type
- Higher and closed type
28. Which follower is known as mushroom follower?
- Flat faced
- Spherical faced
- Roller
- Knife edge
29. When cam moves, the period during which the follower of cam remains at rest is known as
- fixed period
- constant period
- dwell period
- idle period
30. In a cam and follower mechanism, cam is a
- Follower
- Driver
- Frame
- Actuator