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In a ball bearing, ball and bearing forms a

A. Turning pair

B. Rolling pair

C. Screw pair

D. Spherical pair

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  18. In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam…
  19. The critical speed of a shaft with a disc supported in between is equal to the natural frequency of…
  20. The example of rolling pair is
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  22. Two systems shall be dynamically equivalent when
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  25. The train value of a gear train is
  26. The advantage of the piston valve over the slide valve is that in the former case
  27. The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness…
  28. The absolute acceleration of any point P in a link about center of rotation O is
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