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Mr. Dubey • 100.64K Points
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Q. Why might steel parts have a greater tendency towards rusting after penetrant testing?

  • (A) Penetrant materials are normally corrosive
  • (B) Penetrant materials residues are hydroscopic
  • (C) Any protective oils are removed during penetrant testing
  • (D) This is true only if the developer and penetrant residues are not removed after testing
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