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Screws used for power transmission should have

A. Very fine threads

B. High efficiency

C. Low efficiency

D. Strong teeth

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  1. In order to obtain bolt of uniform strength
  2. Cold working
  3. For applications involving high stresses in one direction only the following type of thread would be…
  4. The application of third type levers is found in
  5. Two shafts A and B are made of the same material. The diameter of shaft A is twice as that of shaft…
  6. Split nut is a locking device in which
  7. According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal…
  8. The building up of worn and undersized parts, subjected to repeated loads by electroplating is
  9. The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and…
  10. The backlash for spur gears depends upon
  11. Two shafts A and B under pure torsion are of identical length and identical weight and are made of the…
  12. The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of…
  13. A type of brake commonly used in motor cars is a
  14. Which of the following property is essential for spring materials?
  15. Spring index is
  16. In the calculation of induced shear stress in helical springs, the Wahl's stress factor is used to take…
  17. Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number…
  18. When the belt is transmitting maximum power,
  19. According to maximum shear stress theory, the maximum shear stress in the shaft is
  20. Which one of the following is a positive drive?
  21. The valve rod in a steam engine is connected to an eccentric rod by
  22. The draw of cotter need not exceed
  23. The included angle between the sides of V-belt is
  24. The fatigue life of a part can be improved by
  25. Yield point in fatigue loading as compared to static loading is
  26. For standard coarse threads of nut, the threads will be as strong in failure by shear as the bolt in…
  27. The temperature at which the new grains are formed in the metal is known as
  28. Which is correct statement?
  29. According to Indian standard specifications, 100 H6/g5 means that the
  30. A bolt of uniform strength can be developed by