Minnesota Boiler License Practice Exam 2025 - Free Boiler License Practice Questions and Study Guide

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What is the purpose of a check valve in a boiler system?

To regulate temperature

To control flow direction

The purpose of a check valve in a boiler system is to control flow direction. This type of valve allows fluid to flow in one direction while preventing backflow in the opposite direction. In a boiler system, maintaining the correct flow of water and steam is crucial for operating safely and efficiently. If backflow occurs, it can lead to contamination, system inefficiencies, or even damage to equipment. By ensuring that the flow direction is properly managed, the check valve helps to maintain system integrity and performance.

Regulating temperature is handled by other components in the system, such as temperature controls and sensors, while increasing pressure typically involves the boiler’s operational design and pressure controls rather than check valves. Relief of excess pressure is managed by safety valves and pressure relief devices specifically designed for that purpose.

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To increase pressure

To relieve excess pressure

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