Minnesota Second Class Boiler License 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is the maximum allowable working pressure for a low-pressure boiler?

10 psig

15 psig

The maximum allowable working pressure for a low-pressure boiler is defined as 15 psig. This limit is important because it distinguishes low-pressure boilers from high-pressure boilers, which require different safety precautions, operational procedures, and licensing. Low-pressure boilers operate under lower stress conditions, typically providing steam or hot water for heating and other applications within residential, commercial, and small industrial settings.

Understanding this distinction is crucial for boiler operators, as it influences the design, maintenance, and regulatory compliance of the boiler system. Knowing that the maximum allowable working pressure is 15 psig helps ensure that operators adhere to safety standards, which helps prevent incidents related to overpressure scenarios.

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160 psig

250 psig

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