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Multiple threads are used to secure

A. Low efficiency

B. High efficiency

C. High load lifting capacity

D. High mechanical advantage

Correct Answer : B.


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  1. A connecting rod should be
  2. In cross or regular lay ropes
  3. The cam follower extensively used in aircraft engines is
  4. When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and…
  5. The process which improves the machinability of steels, but lowers the hardness and tensile strength…
  6. The constant factor in case of R10 series of preferred numbers is
  7. In a marine flange coupling, the thickness of flange is taken as
  8. A hot short metal is
  9. Spring index is
  10. The objective of idler pulley in belt drive is to
  11. The condition for maximum power transmission is that the maximum tension in the flat belt should be…
  12. When a belt drive is transmitting maximum power,
  13. In radial cams, the follower moves
  14. A double fillet welded joint with parallel fillet weld of length l and leg s is subjected to a tensile…
  15. For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be
  16. A sliding bearing in which although lubricant is present, the working surfaces __________ contact each…
  17. In a boundary lubricated bearing, there is a __________ of lubricant between the journal and the bearing.
  18. The taper on a rectangular sunk key is
  19. Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft…
  20. Residual stress in materials
  21. When carbon in the cast iron is principally in the form of graphite, the cast iron will be of
  22. If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed…
  23. The pipe joint mostly used for pipes carrying water at low pressures is
  24. Tensile strength of a mild steel specimen can be roughly predicted from following hardness test
  25. The notch sensitivity q is expressed in terms of fatigue stress concentration factor Kf and theoretical…
  26. The objective of crowning of the flat pulleys of belt drive is to
  27. According to Indian standard specifications, 100 H6/g5 means that the
  28. Fibrous fracture occurs in
  29. The function of cutting oil when threading a pipe is to
  30. The expression 0.175 - 0.841/T is the Lewis form factor for