Boiler Prep

Minnesota Boiler License Exam Study Tool

High-pressure boiler operator license. ~50 multiple-choice questions, 70% passing score.

Practice Tests

Timed tests with grading — Quick 10, Standard 25, or Full 50 questions

Multiple-choice flash cards by category — flip to check your answer

Browse all 11 topics with diagrams, key facts, and related questions

16 troubleshooting scenarios with interactive decision points

Boiler math quick-reference with practice calculators

Top 25 facts, 10 "never do" rules, trick questions, and test strategies