In this episode, I talk to professional engineer Kalin Hollingbery about his experience preparing for and passing the HVAC & Refrigeration PE exam on the sixth try. Kalin's persistence is truly amazing and his story is a perfect example of not only building technical competence but also personal and professional growth. Anyone re-taking the PE exam will be inspired by the advice in this episode. So with that, here's my chat with Kalin Hollingbery.