Minnesota Boiler License Practice Exam 2026 - Free Boiler License Practice Questions and Study Guide

Question: 1 / 400

A chief class operating license is required to take charge of a boiler plant over what horsepower?

50 bhp

500 bhp

300 bhp

A chief class operating license is required for individuals who are responsible for operating large boiler plants. In Minnesota, the threshold for this licensing requirement is set at 300 boiler horsepower (bhp). Therefore, when a boiler plant exceeds this capacity, the operator is mandated to possess a chief class license to ensure proper operational oversight and safety measures are in place. This licensing structure helps to ensure that individuals managing high-capacity boilers have the necessary expertise and training to handle complex systems and maintain compliance with safety regulations.

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100 bhp

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