ISRO Mechanical & Aerospace 2010 - Question 55

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Which is not correct statement about the function of flux in brazing

  • A. To avoid thermal distortion and cracking
  • B. To dissolve surface oxide coatings which have formed prior to brazing
  • C. To prevent oxides from forming during the brazing operation
  • D. To facilitate the wetting process

Answer: A. To avoid thermal distortion and cracking

Explanation: Flux cleans oxides and promotes wetting. Thermal distortion is controlled by heating methods, not flux.

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