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THE BOILERS AND PRESSURE VESSELS ORDINANCE, 2002 QUESTION #4005
Question 1
'Caustic Embrittlement' is a type of corrosion caused by high concentrations of:
  • Oxygen
  • Sodium Hydroxide ($NaOH$)✔️
  • Chloride
  • Calcium
Correct Answer Explanation
It leads to cracking of the boiler metal, particularly at high-stress areas like rivets and seams.