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Theory of Machines - Interview Questions and Answers

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51. Which of the following has sliding motion
A. crank
B. connecting rod
C. crank pin
D. cross-head
E. cross head guide.
Explanation:
52. The values of velocity and acceleration of piston at near dead center for a slider-crank mechanism will be
A. 0, and more than co2r
B. 0, and less than coV
C. 0, 0
D. cor, 0
E. none of the above.
Explanation:
53. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as
A. turning pair
B. rolling pair
C. sliding pair
D. spherical pair
E. lower pair,
Explanation:
54. The example of lower pair is
A. shaft revolving in a bearing
B. straight line motion mechanisms
C. automobile steering gear
D. all of the above
E. none of the above.
Explanation:
55. Theipurpose of a link is to
A. transmit motion
B. guide other links
C. act as a support
D. all of the above
E. none of the above.
Explanation:
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