Home

When the two elements of a pair have __________ when in motion, it is said to a lower pair.

A. Line or point contact

B. Surface contact

C. Body contact

D. None of these

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The frequency of oscillation of a compound pendulum is
  2. If the radius of gyration of a compound pendulum about an axis through e.g. is more, then its frequency…
  3. In a radial cam, the follower moves
  4. In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be
  5. In a gear having involute teeth, the normal to the involute is a tangent to the
  6. In a steam engine, the link constitutes a
  7. In order to give the primary balance of the reciprocating parts of a multi-cylinder inline engines,
  8. The minimum number of teeth on the pinion which will mesh with any gear without interference for 20°…
  9. The natural frequency of free torsional vibrations of a shaft is equal to (where q = Torsional stiffness…
  10. The size of a gear is usually specified by
  11. The advantage of the piston valve over the slide valve is that in the former case
  12. The centre distance between two meshing involute gears is equal to
  13. The two elements of a pair are said to form a higher pair, when they
  14. The frequency of oscillation of a torsional pendulum is
  15. A mechanism consisting of four links is called a __________ mechanism.
  16. Which of the following is a pendulum type governor?
  17. Rectangular bar in a rectangular hole is the following type of pair
  18. A Hartnell governor has its controlling force (Fc) given by Fc = ar + b, where r is the radius of rotation…
  19. The periodic time of a compound pendulum is __________ when the distance between the point of suspension…
  20. The displacement of the reciprocating roller follower, when it has contact with the straight flanks…
  21. Which of the following is false statement in respect of differences between machine and structure?
  22. The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is
  23. When the nature of contact between the elements of a pair is such that it can only slide relative to…
  24. The Ackermann steering mechanism is preferred to the Davis type in automobiles because
  25. Balancing of rotating and reciprocating parts of an engine is necessary when it runs at
  26. A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution…
  27. The velocity of the belt for maximum power is (where m = Mass of the belt in kg per metre length)
  28. The flank of the tooth is the surface of the tooth __________ the pitch surface.
  29. The frictional torque transmitted in a flat collar bearing, considering uniform wear, is (where r₁…
  30. Efficiency of a screw jack is given by