The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively)

A. (1/2). μ W (r₁ + r₂)

B. (2/3). μ W (r₁ + r₂)

C. (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

D. (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)]

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

You can do it
  1. Ball and a Socket forms a
  2. Which of the following disciplines provides study of inertia forces arising from the combined effect…
  3. In a steam engine, the earlier cut-off with a simple slide valve may be obtained by increasing the steam…
  4. Which gear is used for connecting two coplanar and intersecting shafts?
  5. A system in dynamic balance implies that
  6. ________ is an inversion of Double slider crank chain.
  7. The static friction
  8. A rigid body possesses ________degrees of freedom
  9. The partial balancing means
  10. In automobiles the power is transmitted from gear box to differential through
  11. Tangential acceleration direction is
  12. When the particles of a body moves perpendicular to its axis, then the body is said to have
  13. In a disc clutch, if there are n₁ number of discs on the driving shaft and n₂ number of…
  14. Which of the following is used to control the speed variations of the engine caused by the fluctuations…
  15. The angle of inclination of the plane, at which the body begins to move down the plane is called
  16. Which of the following mechanisms produces mathematically an exact straight line motion?
  17. For fluctuating loads, well suited bearing is
  18. In a ball bearing, ball and bearing forms a
  19. The direction of Coriolis component of acceleration is the direction
  20. The maximum fluctuation of energy is the
  21. The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given…
  22. In a drag link quick return mechanism, the shortest link is always fixed. The sum of the shortest and…
  23. The condition for correct steering of a Davis steering gear is (where α = Angle of inclination…
  24. When the speed of the engine fluctuates continuously above and below the mean speed, the governor is…
  25. The instantaneous centre of a rigid thin disc rolling on a plane rigid surface is located at
  26. The power of a Porter governor is equal to
  27. In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without…
  28. In higher pair, the relative motion is
  29. The ratio of maximum fluctuation of energy to the workdone per cycle is called
  30. For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimed stroke respectively,…