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Nisha Gupta • 2.32K Points
Master

Q. Corrosion in boilers can be prevented by

  • (A) Deaeration of feed water
  • (B) Enhancing pH of feed water by adding alkali
  • (C) Feeding sodium sulphite or hydrazine phosphate to the boilers, which combines with oxygen and prevents corrosion
  • (D) All (A), (B) and (C)
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