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THE BOILERS AND PRESSURE VESSELS ORDINANCE, 2002 QUESTION #4059
Question 1
'Galvanizing' is NOT usually done for boiler tubes because:
  • It is too cheap
  • The zinc would melt and contaminate the water/metal at high temperatures✔️
  • It makes the tubes heavy
  • It is the wrong color
Correct Answer Explanation
Boiler tubes are typically made of carbon or alloy steel.