Which of the following is a permanent fastening?

A. Bolts

B. Keys

C. Cotters

D. Rivets

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  1. In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock…
  2. The velocity factor for very accurately cut and ground metallic gears operating at velocities upto __________…
  3. The power transmitted by the belt drive can be increased by
  4. The creep in the belt is due to
  5. Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected…
  6. In a transverse fillet welded joint, the size of weld is __________ the throat of weld.
  7. The relation between the pitch of the chain (p) and pitch circle diameter of the sprocket (D) is given…
  8. Stress concentration is caused due to
  9. A compound cylinder with inner radius 50 mm and outer radius 70 mm is made by shrinking one cylinder…
  10. A transmission shaft includes
  11. An imaginary circle which by pure rolling action gives the same motion as the actual gear, is called
  12. When an open coiled helical compression spring is subjected to an axial load (W), the compression produced…
  13. Rankine's theory of failure is applicable for following type of materials
  14. The velocity factor for precision metallic gears cut with high accuracy and operating at velocities…
  15. In order to avoid tearing of the plate at an edge, the distance from the centre line of the rivet hole…
  16. The power transmitted by belt drive depends upon
  17. The condition for maximum power transmission is that the maximum tension in the flat belt should be…
  18. According to Indian standards, total numbers of tolerance grades are
  19. A screw is said to be a self locking screw, if its efficiency is
  20. The taper on key is given on
  21. Which is correct statement? Stress concentration in static loading is
  22. When an open coiled helical compression spring is subjected to an axial compressive load, the maximum…
  23. In static loading, stress concentration is more serious in
  24. The wire ropes make contact at
  25. Which of the following statement is wrong?
  26. According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal…
  27. The material generally used for aircraft components is
  28. The contact ratio is the ratio of
  29. When a close coiled helical spring is compressed, its wire is subjected to
  30. The connecting rod bolts are tightened up so that tightening stress