PE Mechanical Exam Prep

Prepare for the NCEES Principles and Practice of Engineering (PE) Mechanical exam with the most complete, discipline-aware practice app built for the computer-based testing (CBT) format. Whether you're targeting HVAC & Refrigeration, Thermal & Fluid Systems, or Machine Design & Materials, this app gives you the question volume, the timed simulation, and the on-demand reference you need to walk into Pearson VUE with confidence.
WHAT'S INSIDE

240+ carefully authored practice questions mirroring the NCEES style — four options, progressive difficulty, and a worked explanation for every question.
16 topic categories covering the full PE Mechanical body of knowledge: Mathematics, Probability & Statistics, Engineering Economics, Ethics & Professional Practice, Statics & Mechanics of Materials, Dynamics & Vibrations, Materials, Thermodynamics, Heat Transfer, Fluid Mechanics, HVAC Fundamentals & Psychrometrics, Refrigeration Cycles & Equipment, Thermal & Power Systems, Fluid & Hydraulic Systems, Machine Design Fundamentals, and Machine Elements.
Full 80-question, 8-hour timed exam simulating the real NCEES PE Mechanical CBT — or a 40-question short practice session for focused study blocks.
Discipline selector. Filter by HVAC & R, Thermal & Fluid Systems, Machine Design & Materials, or study all three combined.
Diagram-rich problems. Questions include crisp, scalable diagrams for Rankine, Brayton, Otto, Carnot, and vapor-compression refrigeration cycles; psychrometric processes; heat exchangers; fins and composite walls; pump and system curves; pipe flow and control volumes; shafts, bolted joints, gears, helical springs; Mohr's circle; spring-mass-damper systems; and beam loadings.
Searchable formula reference with 70+ key PE Mechanical equations — thermodynamic cycles, heat-exchanger LMTD/ε-NTU, fluid-flow head loss, psychrometric relations, Goodman/Tresca/von Mises failure criteria, gear design, bolt preload, spring Wahl factor, bearing L10 life, control-system basics, and more.
Exam Guide walking you through NCEES registration, the 9-hour appointment structure, the 50-minute scheduled break, approved calculators, and recommended study resources.
Progress tracking. Per-category accuracy and full-exam history are saved on-device so you can see where to focus.

RESPONSIVE BY DESIGN
Optimized for iPhone and iPad in both portrait and landscape. Two-column answer layouts and wide reading columns kick in automatically on iPad and larger iPhones to make full use of the screen. Your category practice session picks up where you left off on any device orientation.
WHO IT'S FOR
Engineers preparing for the NCEES PE Mechanical exam. FE-passed candidates working toward P.E. licensure. Professionals refreshing their fundamentals for design reviews or promotion boards.
DISCLAIMER
This app is an independent study tool and is not affiliated with or endorsed by NCEES. Use the official NCEES PE Mechanical Reference Handbook as your primary reference and take the official NCEES practice exam prior to test day.