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Theory of Machines - Interview Questions and Answers

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91. In elliptical trammels
A. all four pairs are turning
B. three pairs turning and one pair sliding
C. two pairs turning and two pairs sliding
D. one pair turning and three pairs sliding
E. all four pairs sliding.
Explanation:
92. Typewriter constitutes
A. machine
B. structure
C. mechanism
D. inversion
E. none of the above.
Explanation:
93. If D1 and D2 be the diameters of driver and driven pulleys, then belt speed is proportional to
A. D1/D2
B. D2/D1
C. 1-D2.
D. D1
E. D1+D2.
Explanation:
94. Which of the following is a lower pair
A. ball and socket
B. piston and cylinder
C. cam and follower
D. (a) and (b) above
E. belt drive.
Explanation:
95. In an ideal machine, the output as compared to input is
A. less
B. more
C. equal
D. may be less or more depending on efficiency
E. always less.
Explanation:
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