Aircraft body is usually fabricated by

A. Welding

B. Pre-casting

C. Riveting

D. Casting

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  1. When the bolt is very yielding as compared to the connected members, then the resultant load on the…
  2. In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock…
  3. If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according…
  4. During hot working of metals,
  5. The suitable material for belt in agricultural machinery is
  6. Rivets are generally specified by
  7. When a hole of diameter d is punched in a metal of thickness 't', then the force required to punch a…
  8. Plastic flow in ductile materials
  9. Applications in which stresses are encountered in one direction only uses following type of threads
  10. The maximum shear stress theory is used for
  11. A connecting rod should be
  12. Which of the following statement is correct for gears?
  13. Wahl's stress factor __________ very rapidly as the spring index decreases.
  14. The square threads are usually found on
  15. Tapered roller bearings can take
  16. Eye bolts are used for
  17. The number of slots in a 25 mm castle nut is
  18. The backlash for spur gears depends upon
  19. According to Unwin's formula, the relation between the diameter of rivet hole (d) and the thickness…
  20. The design of the pressure vessel is based on
  21. When the speed of belt increases,
  22. In case of thick cylinders, the tangential stress across the thickness of cylinder is
  23. The maximum stress due to stress concentration in a bar having circular transverse hole, as compared…
  24. In the assembly of pulley, key and shaft
  25. A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called
  26. The cross-section of the arm of a bell crank lever is
  27. The acme threads are usually found on
  28. Whether any core is required in wire ropes
  29. In hydrodynamic bearings
  30. For tight leakage joints, following type of thread is best suited