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Kinematics of Machinery
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275 questions on the Kinematics of Machinery.

Kinematics of Machinery
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25 Questions

1. Tangent cam with reciprocating follower is an example of cams with specified contours.
2. From the given data, calculate the acceleration of follower in m/s2 at the beginning of the lift for a symmetrical tangent cam operating a roller follower.Least radius of the cam is 30 mm; Roller radius is 17.5 mm. The angle of ascent is 75° and the total lift is 17.5 mm. The speed of the cam shaft is 600 r.p.m.
3. The relation between the number of links(l) and the number of binary joints(j) for a kinematic chain having constrained motion is given by j = 3/2 (l – 2). If the left hand side of this equation is greater than the right hand side, then the chain is
4. A slider moves with uniform velocity v on a revolving link of length r with angular velocity of ω. The Coriolis acceleration component of a point on the slider relative to a coincident point on the link is equal to
5. The main disadvantage of the sliding pair is that it is
6. The advantages of the V-belt drive over flat belt drive are
7. How many turning pairs are there in a double slider crank chain?
8. Erratic steering is caused due to
9. The V-belts are particularly suitable for _____________ drives.
10. The chains are made up of rigid links which are hinged together in order to avoid flexibility for warping around the driving and driven wheels.
11. Which of the following is an example of sliding pair?
12. In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and longest link is
13. The included angle for the v-belt is usually
14. The wire ropes make contact at
15. Maximum acceleration of the follower is independent of the angle theta.
16. While constructing cam profile, Kinematic inversion is used.
17. A mechanism ______________ for transmitting or transforming motion.
18. What is the use of tangent cams?
19. In Scott Russell’s mechanism the straight line motion is generated.
20. Which of the mechanism is used to convert rotary motion into a reciprocating motion?
21. A palnar mechanism has 8 links and 10 rotary joints. The number of degrees of freedom of the mechanism, using Grubler’s criterion, is
22. In an open pair, the two elements of a pair
23. The advantages of the V-belt drive over flat belt drive are
24. Which is the false statement about the properties of instantaneous centre?
25. Angular acceleration of a link can be determined by dividing the