Name the safety device used to protect the boiler, when the water level falls below a minimum level ?
Correct answer: C. Fusible plug
- A. Blow down valve
- B. Blow off cock
- C. Fusible plug
- D. Safety valve
Explanation
A fusible plug protects a boiler during low-water conditions by melting when its exposed portion overheats, releasing steam and warning of the unsafe condition. Blowdown valves remove sludge, whereas the safety valve responds to excess pressure.
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