In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)

A. d + 17 mm

B. 2d + 13 mm

C. 2d + 20 mm

D. 3.5d

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

You can do it
  1. The power transmitted by the belt drive can be increased by
  2. The piston rod of a steam engine is usually connected to the crosshead by means of
  3. In the assembly of pulley, key and shaft
  4. Which of the following screw thread is used for power transmission in one direction only?
  5. If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according…
  6. If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to
  7. In static loading, stress concentration is more serious in
  8. In a gear, having Involute teeth, the normal to the Involute is a tangent to the
  9. The ball bearings are provided with a cage
  10. The crest diameter of a screw thread is same as
  11. A sliding bearing in which although lubricant is present, the working surfaces __________ contact each…
  12. A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as
  13. Two helical springs of the same material and of equal circular crosssection, length and number of turns,…
  14. For steel, the ultimate strength in shear as compared to ultimate strength in tension is
  15. In second type of levers,
  16. In block brakes, the ratio of shoe width to wheel diameter is taken between
  17. The rolling contact bearings are known as
  18. Cast iron pipes are mainly used
  19. When the belt speed increases
  20. The draw of cotter need not exceed
  21. Which of the following statement is correct?
  22. Basic hole is one
  23. Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft…
  24. In worm gears, the pressure angle is ________ the angle between two inclined faces in axial plane.
  25. An open belt drive is used when
  26. A self locking screw has
  27. In hydrodynamic bearings
  28. In a hydrodynamic lubricated bearing
  29. When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced…
  30. Which of the following material has the maximum ductility?