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If two moving elements have surface contact in motion, such pair is known as

A. Sliding pair

B. Rolling pair

C. Surface pair

D. Higher pair

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  1. A Porter governor is a
  2. The contact ratio is the ratio of
  3. A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved…
  4. When a slider moves on a fixed link having curved surface, their instantaneous centre lies
  5. Cylindrical cams can be classified as
  6. If the pressure angle is __________, a reciprocating follower will jam in its bearings.
  7. ________ is an inversion of Double slider crank chain.
  8. The natural frequency of free transverse vibrations due to a point load acting over a simply supported…
  9. A spring controlled governor is said to be unstable when the controlling force
  10. The relation between number of links (l) and number of joints (j) in a kinematic chain is
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  12. Pitch point on a cam is
  13. Transmission angle is the angle between
  14. If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for…
  15. Which of the following is a higher pair?
  16. The pressure angle of a cam is the angle between the direction of the follower motion and a normal to…
  17. The periodic time is given by (where ω = Angular velocity of the particle in rad/s)
  18. The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness…
  19. The secondary unbalanced force is __________ the primary unbalanced force.
  20. Module of a gear is
  21. In order to balance the reciprocating masses,
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  24. In the below figure, PC is the connecting rod and OC is the crank making an angle θ with the line…
  25. In a shaper mechanism, the Coriolis component of acceleration will
  26. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve…
  27. The D-slide valve is also known as
  28. For the brake to be self locking, the force P at C shown in the below figure, should
  29. Which of the following disciplines provides study of relative motion between the parts of a machine?
  30. The unbalanced force due to revolving masses