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Machine Design 2: Design of Cams and Followers
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Machine Design 2: Design of Cams and Followers
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24 Questions

1. The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by
2. The angle between the direction of the follower motion and a normal to the pitch curve is called
3. The cam follower generally used in automobile engines is
4. The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by
5. The linear velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by
6. For high speed engines, the cam follower should move with
7. The linear velocity of the reciprocating roller follower when it has contact with the straight flanks of the tangent cam, is given by
8. Calculate the limiting speed to avoid cam jump, if an eccentric plate circular cam has eccentricity of 30 mm and provides motion to the follower of 4 kg mass. Stiffness of the spring is 30 N/mm2. Preload in the spring is 600 N
9. Which of the following displacement diagrams should be chosen for better dynamic performance of a cam-follower mechanism ?
10. What is meant by jump phenomenon in cam and follower system?
11. Ofset is provided to a cam follower mechanism to
12. Which of the following conditions can be used to minimize undercutting in cam and follower mechanism?
13. Which motion of follower is best for high speed cams?
14. The displacement of a flat faced follower when it has contact with the flank of a circular arc cam, is given by
15. For high speed engines, the cam follower should move with
16. To avoid jump phenomenon, which of the following condition should be true? Where,P = preload in spring, ω = cam speed, k = stiffness of spring, e = eccentricity
17. Which of the following statements is false for SHM follower motion?
18. A radial follower is one
19. A cam operating roller follower has the following dimensions, radius of base and nose circle as 15 mm and 10 mm respectively and distance between them is 8 mm. Determine lift made by the follower
20. In a radial cam, the follower moves
21. Which of the following equation is used to measure pressure angle between direction of follower motion and force exerted by the cam on follower when eccentricity is zero? Where,rb = base circle radiusy = displacement of follower
22. Which type of cam does not require any external force to have contact between cam and follower?
23. For low and moderate speed engines, the cam follower should move with
24. Which of the following statements is/are true for cam profile?