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Which of the following is an open pair?

A. Journal bearing

B. Ball and Socket joint

C. Leave screw and nut

D. None of the above

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  1. A system of masses rotating in different parallel planes is in dynamic balance if the
  2. The method of direct and reverse cranks is used in engines for
  3. The size of cam depends upon
  4. A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at…
  5. Kinematic pairs are those which have
  6. Higher pairs are those which have
  7. The Klein's diagram is useful to find
  8. The frequency of oscillation of a compound pendulum is
  9. In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection…
  10. The factor which affects the critical speed of a shaft is
  11. Throw of a cam is the maximum distance of the follower from
  12. If the pressure angle is __________, a reciprocating follower will jam in its bearings.
  13. A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation…
  14. The component of the acceleration, parallel to the velocity of the particle, at the given instant is…
  15. Inertia force acts
  16. The displacement of a flat faced follower when it has contact with the flank of a circular arc cam,…
  17. The Bifilar suspension method is used to determine
  18. The number of centers in a crank driven slider crank mechanism is
  19. The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is
  20. For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimed stroke respectively,…
  21. The inversion of a mechanism is
  22. When one of the links of a kinematic chain is fixed, the chain is known as a
  23. Which of the following is an example of sliding pair?
  24. The length of a simple pendulum which gives the same frequency as the compound pendulum, is
  25. A rigid body possesses ________degrees of freedom
  26. The dedendum circle diameter is equal to (where, φ = Pressure angle)
  27. The coriolis component of acceleration exists whenever a point moves along a path that has
  28. Kinematic pairs are those which have two elements that
  29. Klein's construction is useful to determine
  30. When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal…