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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. In a slider crank mechanism, the crank rotates with a constant angular velocity of 300 rpm, Length of crank is 150mm, and the length of the connecting rod is 600mm. Determine linear velocity of the midpoint of the connecting rod in m/s. Crank angle = 45° from IDC.
2. An eccentric sheave pivoted at one point rotates and transmits oscillatory motion to a link whose one end is pivoted and other end is connected to it. This mechanism has
3. Which is the false statement about the properties of instantaneous centre?
4. The approximate straight line mechanism is a
5. According to criterion of constraint by A.W. Klein
6. The V-belts are particularly suitable for _____________ drives.
7. What is the purpose of using steel chains?
8. When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a
9. A circle drawn with centre as the cam centre and radius equal to the distance between the cam centre and the point on the pitch curve at which the pressure angle is maximum, is called
10. Instantaneous center of rotation of a link in a four bar mechanism lies on
11. The tilting of the front wheels away from the vertical is called
12. If θ is the angle turned by the cam from the beginning of the roller displacement, then minimum acceleration pf the follower occurs at what value of θ in degrees?
13. A combination of kinematic pairs, joined in such a way that the relative motion between the links is completely constrained, is called a
14. At an instant the link AB of length r has an angular velocity ω and an angular acceleration α. What is the total acceleration of AB?
15. Hard steering can be fixed by
16. The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line
17. Which component of acceleration is parallel to the given link?
18. The absolute acceleration of any point P in a link about center of rotation O is
19. If a follower is undergoing simple harmonic motion, then at what value of angle of ascent the acceleration is maximum?
20. The number of degrees of freedom of a planer linkage with 8 links and 9 simple revolute joints is
21. Which of the following is true regarding chain drives?
22. In a multiple V-belt drive, if one of the belt is broken, then we should replace
23. Coriolis component of acceleration exists when there is relative motion between two points from the ground frame.
24. The cam follower extensively used in air-craft engines is
25. 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