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THE BOILERS AND PRESSURE VESSELS ORDINANCE, 2002 QUESTION #4027
Question 1
'Bagging' of a boiler shell occurs when:
  • The boiler is put in a bag
  • Localized overheating causes the metal to bulge outward due to internal pressure✔️
  • The boiler is painted
  • The operator makes a mistake
Correct Answer Explanation
This is often caused by oil or scale preventing heat transfer at that spot.