Spring index is

A. Ratio of coil diameter to wire diameter

B. Load required to produce unit deflection

C. Its capability of storing energy

D. Indication of quality of spring

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  1. When bevel gears connect two shafts whose axes intersect at an angle greater than a right angle and…
  2. The shear stress in a beam varies from zero at the outer fibres to a maximum at the________.
  3. The strap end of a connecting rod of steam engine is joined by
  4. A connecting rod should be
  5. The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive)…
  6. The dedendum circle diameter is equal to (where φ = Pressure angle)
  7. Coaxing is the procedure of increasing
  8. The efficiency of a square threaded screw is maximum if the helix angle is equal to (Where φ =…
  9. For maximum power, the velocity of the belt will be
  10. When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced…
  11. The ratio of the ultimate stress to the design stress is known as
  12. An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock…
  13. Two rigid plates are clamped by means of bolt and nut with an initial force F. After tightening, a separating…
  14. The fatigue stress concentration factor is defined as
  15. The suitable material for belt used in flour mill is
  16. Turn buckle has
  17. In unilateral system of tolerance, the tolerance is allowed on
  18. The static tooth load should be __________ the dynamic load.
  19. Spring stiffness is
  20. The connecting rod bolts are tightened up so that tightening stress
  21. When two springs are in series (having stiffness K), the equivalent stiffness will be
  22. The power transmitted by belt drive depends upon
  23. The suitable material for belt in agricultural machinery is
  24. In worm, gears, pitch lead angle is
  25. The ball bearings are, usually, made from
  26. If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (neglecting…
  27. Stress concentration factor is defined as the ratio of
  28. In designing a connecting rod, it is considered like __________ for buckling about Y-axis.
  29. The value of stress concentration factor depends upon
  30. Applications in which stresses are encountered in one direction only uses following type of threads