The application of third type levers is found in

A. A pair of tongs

B. Hand wheel of a punching press

C. Lever of a loaded safety valve

D. Handle of a hand pump

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  1. When a hole of diameter d is punched in a metal of thickness 't', then the force required to punch a…
  2. The expansion joint is mostly used for pipes which carry steam at __________ pressures.
  3. The included angle in unified of American National threads is
  4. A thin spherical shell of internal diameter d is subjected to an internal pressure p. If V is the storage…
  5. A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called
  6. A tapered key which fits in a key-way in the hub and is flat on the shaft, is known as
  7. A transmission shaft includes
  8. In a butt welded joint, the size of weld is __________ the throat of weld.
  9. Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected…
  10. Auto frettage is the method of
  11. Shear stress theory is applicable for
  12. When a nut is tightened by placing a washer below it, the bolt will be subjected to following type of…
  13. A key made from a cylindrical disc having segmental cross-section, is known as
  14. Form coefficient of spring is
  15. The included angle for the V-belt is usually
  16. In order to obtain bolt of uniform strength
  17. When the shaft rotates in anticlockwise direction at slow speed in a bearing, it will
  18. In thrust bearings, the load acts
  19. A backing ring is used inside the pipe joint when making a
  20. A steel containing __________ 0.8% carbon is known as hypoeutectoid steel.
  21. The maximum efficiency of a square threaded screw is
  22. A key capable of tilting in a recess milled out in a shaft is known as
  23. For a square key made of mild steel, the shear and crushing strength are related as
  24. In Vickers hardness testing, the pyramid indentor apex is
  25. In case of pressure vessels having closed ends, the fluid pressure induces
  26. If a spring is cut down into two springs, the stiffness of cut springs will be
  27. The included angle between the sides of V-belt is
  28. The width of the pulley should be __________ width of the belt.
  29. The function of cutting oil when threading a pipe is to
  30. In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of…