General Studies · Boilers
What is the primary purpose of a boiler's fusible plug?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To automatically regulate and relieve excess steam pressure
- 2To preheat the incoming feed water using flue gases
- 3To extinguish the fire in the furnace and reduce the risk of explosion due to low water level✓
- 4To extract accumulated air from the boiler shell
Correct answer
To extinguish the fire in the furnace and reduce the risk of explosion due to low water level
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