PE exam resources
Straight answers, grounded in NCEES data and what actually moves a score — free, no signup. Find what you need by where you are.
Looking for the engineering itself? The high-yield topic breakdowns live in Topics.
Start here
- How to pass the PE Mechanical examThe complete guide: the three depths, why capable engineers fail, and the plan that works.
- 10 lessons from 100+ PE Mechanical journeysThe community's collective debrief — the ten lessons that keep resurfacing in pass stories.
- Free PE Mechanical practice examA free, scored quiz with worked, Handbook-cited solutions — pick a depth and go.
About the exam
- PE Mechanical pass ratesBy depth, first-time vs repeat, and what the gap actually tells you.
- How hard is the PE Mechanical exam?What the pass rates really say, and why capable engineers still fail.
- The questions a question bank won't prepare you forMetallurgy, fits, drawing symbols, select-all formats — and how to prep for them.
- PE Mechanical exam requirementsDegree, FE, experience, the PE exam, fees, and timeline — the full path to your license.
- Can you sit the PE before 4 years' experience?Decoupling: most states let you pass the exam early, then log experience.
- FE to PE: the EIT → licensed pathwayThe full timeline from passing the FE to earning your PE license.
- Is the PE license worth it?Salary premium, career value, and the honest case for when it's not.
- PE Mechanical exam registrationRegistering with NCEES and your state board, fees, and scheduling.
- Which depth should you take?An honest chooser — match your work and fundamentals, not the pass rate.
- Which PE Electrical exam should you take?Power, ECC, or Computer Engineering — candidate numbers, scheduling, and how to choose.
- PE Power pass rates60% first-time, 42% repeat — how the three electrical exams compare, and what a rate can't tell you.
- How hard is the PE Power exam?Where the difficulty actually sits — breadth across nine areas, not depth in one.
How to prepare
- How to pass the PE Mechanical examThe complete guide: the three depths, why capable engineers fail, and the plan that works.
- 10 lessons from 100+ PE Mechanical journeysThe community's collective debrief — the ten lessons that keep resurfacing in pass stories.
- The problem-first study planDrill weak areas, not chapters.
- How long to study for the PEA realistic hours estimate, and how to plan backward from exam day.
- How long to study for the PE Power examThe four-month, 200–400 hour range passers report — and how to plan backward.
- A PE Mechanical study scheduleA week-by-week plan you can adapt to your timeline.
- A self-study plan for the FE/PE examThe free + cheap stack, sequenced.
- A retake plan that fixes the real problemChange the method, not the hours.
- A PE Power retake planRead the NCEES diagnostic honestly, then change the source of your problems.
- The mental game of the PE examNerves, postponing, and coming back — the mental side, from candidates who lived it.
- The question-bank familiarity trapWhy acing practice problems you've seen isn't readiness — and how to measure honestly.
- The custom-retest methodLog every miss, build a shrinking retest, re-solve until it's automatic.
- Cp vs Cv: which one, when, and whyThe specific-heat choice that trips up flow problems — and the ideal-gas rule that settles it.
- Equivalent vs. hydraulic diameterDe and Dh answer different questions — how to tell which one a duct problem wants.
- Using the NCEES Reference HandbookWhat's in the on-screen Handbook, and the navigation skills to know it cold.
Prep tools & materials
- Free PE Mechanical practice examA free, scored quiz with worked, Handbook-cited solutions — pick a depth and go.
- Best PE Mechanical practice examsThe practice resources worth your money — honestly compared.
- CastorPrep vs other practice toolsAn honest head-to-head of the practice options — on what actually moves a score.
- Is a PE Mechanical review course worth it?Courses vs self-study vs AI — the honest math.
- Using ChatGPT for the FE/PE examWhat it's good for, and where it'll burn you.
- PPI QBank reviewWhat it does well, what it costs, and where it falls short.
- Engineering Pro Guides reviewThe practice exams and study guides, reviewed.
- NCEES practice exam reviewThe official practice exam — worth it, and how to use it.
- NCEES practice exam vs. the real examWhat your practice score does and doesn't predict — and how to read it right.
- Is your study material up to date?What still works after a spec change, and how to check any material's vintage in minutes.
- The PE Power handbook and code booksThe handbook plus six codes — which revisions are scored, and the one-chapter-at-a-time constraint.
- Get your employer to pay for PE prepHow to make the case — and exactly what to ask for.
- NCEES-approved calculatorsPicking the calculator to buy and drill on.
Exam day
- What to expect on exam dayCheck-in, the nine-hour appointment, breaks, and the on-screen tools.
- Exam-day pacing and triageBanking points under the clock.
- The unit traps that cost pointslbm vs lbf, gauge vs absolute — the mistakes that fail problems you knew how to solve.
- The psychrometric chart on the CBTReading state points and processes on screen, without a pencil — and when to skip the chart.
- NCEES-approved calculatorsWhich calculators NCEES allows in the room.
- Using the NCEES Reference HandbookWhat's in the on-screen Handbook, and the navigation skills to know it cold.
Deep-dive topics
Single-concept explainers, grouped by depth — the technical topics the exam tests, worked the way you'll see them.
HVAC & Refrigeration
Machine Design & Materials
Thermal & Fluid Systems
All depths
Reading is the easy part — the points come from reps — exam-real problems with a grounded AI tutor on each.