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The fatigue life of a part can be improved by

A. Electroplating

B. Polishing

C. Coating

D. Shot peening

Correct Answer : D.


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  16. When the bolt is very yielding as compared to the connected members, then the resultant load on the…
  17. Rankine's theory of failure is applicable for following type of materials
  18. Resilience of a material is important, when it is subjected to
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  20. Two helical springs of the same material and of equal circular crosssection, length and number of turns,…
  21. Which of the following screw thread is used for power transmission in one direction only?
  22. If d is the normal diameter of a bolt in mm, then the initial tension in kg in a bolt used for making…
  23. For hardening alloy steels and high speed steels, they are heated to
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  26. Creep in belt is due to
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  28. The maximum normal stress theory is used for
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