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

A holder of a Minnesota Chief Engineer's license, Grade C, is authorized to operate certain types of boilers with specific limitations on temperature and pressure. The key aspect of this type of license allows operation of boilers of unlimited horsepower, but they must not exceed a temperature of 250 degrees Fahrenheit or a pressure of 160 psi for hot water boilers, and a maximum of 15 psi for steam boilers.

This means that facilities which operate within these parameters can be managed by individuals holding this license, ensuring both safety and compliance with state regulations. The limitations help to ensure that engineers are handling systems that match their training and licensing level, promoting safe operation practices in accordance with the standards established by Minnesota regulations regarding boiler operation.

The other options outline conditions that exceed the limitations defined for a Grade C license, such as higher temperature thresholds or pressures which are not permitted for this classification, thus confirming that the parameters of option A are consistent with the qualifications laid out for the license.