PE Mechanical: HVAC & Refrigeration: Practice Questions, Units, and Exam Format
Loads and psychrometrics, air and hydronic distribution, refrigeration, and HVAC equipment from coils to cooling towers. See exactly what is on the exam, unit by unit, and practise it with a tutor that adapts to you.
Exam format
| Section | Questions | Time | Share of score |
|---|---|---|---|
| PE Mechanical: HVAC & Refrigeration | 80 | 8 hr | 100% |
Units and exam weights
| Unit | Exam weight | Topics covered |
|---|---|---|
| HVAC Loads and Psychrometrics | 22.5 to 33.75% | 1.A Heating/Cooling Loads, 1.B Heating/Cooling Processes (sea level, 5,000-ft elevation, low temperature), 1.C Humidification/Dehumidification Processe s (sea level, 5,000-ft elevation, low temperature) |
| HVAC and Refrigeration Distribution and Systems | 25 to 37.5% | 2.A Air Distribution Systems and Ductwork (e.g., terminal devices, diffusers), 2.B Air Quality and Ventilation (e.g., filtration, dilution, mixing), 2.C Fluid Distribution Systems and Piping (e .g., hydronic, fuel oil, fuel gas, steam/condensate), 2.D Control Concepts (e.g., valves, dampers, sensors, actuators, temperature reset, PID), 2.E Refrigeration and Refrigeration Systems (e .g., processes, food processing and storage, properties, types, ventilation, refrigerants) |
| HVAC Equipment and Components | 30 to 45% | 3.A Cooling Towers and Fluid Coolers, 3.B Boilers and Furnaces (e.g., effici encies, fuel types, combustion), 3.C Heat Exchangers (e.g., shell and tube, plate and frame), 3.D Condensers/Evaporators (e.g., chillers, variable refrigerant flow, heat pumps, thermal storage), 3.E Pumps, Compressors, and Fans (e.g., laws, efficiency, selection, cavitation, curves, NPSH), 3.F Cooling and Heating Coils |
| Supportive Knowledge (HVAC and Refrigeration) | 10 to 15% | 4.A Codes and Standards, 4.B Acoustics and Vibration Control (e.g., sound control, absorption, attenuators, noise level criteria, transmission effect, isolation), 4.C Economic Analysis, 4.D Electrical Concepts (e.g., power consum ption, motor ratings, heat output, amperage) |
How Kalyta teaches PE Mechanical: HVAC & Refrigeration
Practice that adapts to you, an explanation for every answer, and a full rehearsal before the real thing. You spend your time on the units that move your score instead of the ones you have already got.
- Adaptive practice. Questions are picked around your current level, so you are always working just past what you can already do.
- Every answer explained. See why the right answer is right and why each other choice is wrong, with figures and step by step reasoning.
- An AI tutor you can steer. Ask why something works, ask for another example, or tell it to slow down and teach the idea from the start.
- Full exam rehearsals. Sit the real format under real timing and see exactly how many questions you got right, unit by unit, so test day feels like something you have already done.
- Progress you can see. Watch your readiness climb unit by unit, and know what is solid before you walk in.
PE Mechanical: HVAC & Refrigeration is coming soon. There is nothing to sign up for or pay for yet.
Kalyta is an independent study tool and is not endorsed by or affiliated with NCEES. NCEES is a trademark of the National Council of Examiners for Engineering and Surveying.