The process extensively used for making bolts and nuts is

A. Hot piercing

B. Extrusion

C. Cold peening

D. Cold heading

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

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  1. The angle of twist of shaft is
  2. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making…
  3. When the screw in a mechanical screw jack rotates, the load kept on the top of it moves
  4. When a bolt is subjected to shock loading, the resilience of the bolt should be considered in order…
  5. The velocity of sliding ________ the distance of the point of contact from the pitch point.
  6. Two helical springs of the same material and of equal circular crosssection, length and number of turns,…
  7. A metal pipe of 1 m diameter contains a fluid having a pressure of 1 N/mm². If the permissible…
  8. The contact ratio for gears is
  9. In a butt welded joint, the size of weld is __________ the throat of weld.
  10. A column of length l is fixed at both ends. The equivalent length of the column is
  11. In testing a material for endurance strength, it is subjected to
  12. When two nonintersecting and non-coplanar shafts are connected by gears, the arrangement is known as
  13. Which of the following screw thread is used for power transmission in one direction only?
  14. A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder…
  15. An alien bolt is
  16. Which of the following screw thread is adopted for power transmission in either direction?
  17. The expression 0.175 - 0.841/T is the Lewis form factor for
  18. The expansion joint is mostly used for pipes which carry steam at __________ pressures.
  19. Stress concentration in static loading is more serious in
  20. A screw is said to be over hauling screw, if its efficiency is
  21. A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are…
  22. Lewis equation in gears is used to find the
  23. Spring stiffness is
  24. The speed of the sprocket reduces as the chain pitch __________ for a given number of teeth.
  25. According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness…
  26. Which of the following statement is correct regarding power screws?
  27. In block brakes, the ratio of shoe width to wheel diameter is taken between
  28. In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft)
  29. The permissible stress in the fillet weld is 100 N/mm². The fillet weld has equal leg lengths of…
  30. The stretching in a belt can be controlled by __________ the stress in the belt.