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Psychrometrics and HVAC loads, air and hydronic distribution, refrigeration cycles, and equipment selection.
14 exam topics, weighted to the NCEES blueprint — tap any topic to drill it.
Straight from the PE Mechanical: HVAC and Refrigeration bank — every question has a full worked solution.
Worked solution
Balanced like the real exam — from quick wins to multi-step problems.
66 concepts — worked theory, key equations, and common pitfalls for every topic.
Sample concept
The six interlocking properties of moist air — dry-bulb, wet-bulb, dew point, humidity ratio, enthalpy, specific volume — and how to fix a state and read processes on the chart.
80
scored + pretest questions
8h
of exam time, in a 9h appointment
PE
closed-book, computer-based test
Reference
NCEES PE Mechanical Reference Handbook
Everything for PE Mechanical: HVAC and Refrigeration in one place: the full question bank with step-by-step worked solutions, unlimited full-length timed mock exams built to the NCEES blueprint, a searchable study handbook, quick-review flashcards, progress tracking, and an AI tutor for anything you get stuck on.
80 questions in 8h of exam time, inside a 9h appointment that also covers the nondisclosure agreement, the tutorial and a scheduled break. It is a closed-book computer-based test, with the NCEES PE Mechanical Reference Handbook supplied on screen. Our mock exams mirror that format so test day feels familiar.
Quick-review cards for the formulas, definitions, and concepts you need to recall fast — ideal for short sessions and last-week review alongside the full question bank.
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