NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

What is the primary purpose of a safety or pressure-relief valve on a boiler?

Maintain a constant circulating-loop temperature during light load. Automatically add makeup water when the system cools. Indicate water level in the gauge glass during firing. Prevent pressure from exceeding the boiler maximum allowable working pressure.

Correct Answer:

Prevent pressure from exceeding the boiler maximum allowable working pressure.

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