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Safety valve function in boilers: select the correct purpose. Context: Overpressure protection is mandatory to prevent boiler explosions and protect equipment and personnel. Choose the correct function of a safety valve.

Difficulty: Easy

To blow off steam when internal pressure exceeds the working pressure
To indicate the water level inside the boiler
To measure steam pressure inside the boiler
None of the above

Correct Answer: To blow off steam when internal pressure exceeds the working pressure

Explanation:

ConceptThe safety valve is a pressure-relief device that automatically releases steam if the boiler pressure exceeds the set working (or design) limit, preventing catastrophic overpressure.

Not to be confused with

Water level indication (gauge glass or water level indicator).
Pressure measurement (Bourdon pressure gauge).

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Safety valve function in boilers: select the correct purpose. Context: Overpressure protection is mandatory to prevent boiler explosions and protect equipment and personnel. Choose the correct function of a safety valve.

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