If you are a technician, but you’re not sure where to start, or what to study first, start with this online assessment of your current knowledge.  Don’t waste time taking classes you don’t need.  The TCA will reveal your strengths and weaknesses in nine CORE areas of HVACR, and indicate your readiness for industry certification exams such as HVAC Excellence, or NATE.
If you are a manager or supervisor, the TCA is a great way to establish a competency based training plan for new hires and existing technicians. Nine separate assessments taken randomly from a pool of questions focusing on HVACR Core knowledge areas.