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The rated life of a bearing varies

A. Directly as load

B. Inversely as square of load

C. Inversely as cube of load

D. Inversely as fourth power of load

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  1. A stud
  2. The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and…
  3. When the fulcrum is in between the load and effort, the lever is said to be of
  4. The shock resistance of steel is increased by adding
  5. The cross-section of the arm of a bell crank lever is
  6. The smallest diameter of an external or internal screw thread is known as
  7. For general industrial machinery, the ratio of the length of journal to its diameter is taken as
  8. The ball bearings are, usually, made from
  9. Resistance to fatigue of a material is measured by
  10. During hot working of metals,
  11. If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations…
  12. The shear stress in a beam varies from zero at the outer fibres to a maximum at the________.
  13. The usual clearance provided in hydrodynamic bearing per mm of diameter of shaft is
  14. A locking device extensively used in marine type connecting rod ends is a
  15. For a shaft diameter of 200 mm, the number of bolts in a marine flange coupling should be
  16. The product of the diametral pitch and circular pitch is equal to
  17. A bolt is designed on the basis of __________ with a large factor of safety.
  18. Which of the following statement is wrong?
  19. For a shaft diameter of 100 mm, the number of bolts in a flange coupling should be
  20. In the levers of first type, the mechanical advantage is __________ one.
  21. In a horizontal flat belt drive, it is customary to use
  22. In a steam engine, the piston rod is usually connected to the crosshead by means of a
  23. Which of the following statement is correct, for two shafts connected in parallel?
  24. Which of the following statement is wrong for a connecting rod?
  25. The width of the pulley should be __________ width of the belt.
  26. When a circular beam of diameter d is subjected to a shear force F, the maximum shear stress induced…
  27. The material commonly used for crane hooks is
  28. For high speed engines, the cam follower should move with
  29. Cap screws are
  30. The value of stress concentration factor depends upon