FE Reference Handbook: Free Download and How to Use It
The FE Reference Handbook is supplied onscreen during the FE exam, and NCEES gives it to you free as a PDF. Download it from MyNCEES, check the version for your exam date, then use the lookup drill below to practice the way you'll test.
Get the free PDF
Open NCEES's free handbook download — you'll need to sign in to MyNCEES.
- Open the link above.
- Sign in to MyNCEES. If you've ever registered for an NCEES exam since October 2010, you already have an account, so don't make a second one. NCEES locks duplicate accounts. If you have never had an account, use the account-creation option. (MyNCEES FAQs)
- Choose the FE Reference Handbook and note the version shown.
- Save the PDF to the device you study on.
If NCEES's link ever moves, its handbook help page has the current route.
Landed on a paid listing instead? The official PDF costs nothing. Use the free handbook link above.
Why we don't host the PDF: NCEES lets you print the handbook for personal use, but it doesn't allow copies to be reposted or shared online without its permission. (NCEES help) Copies on file-sharing sites may also be out of date.
Which version do I need?
Use the FE Reference Handbook that applies to your exam date. NCEES supplies the current version onscreen and makes it available through MyNCEES. Check the version shown there and any NCEES notice giving its exam-use date. (NCEES Examinee Guide, May 2026, p. 10)
NCEES switches versions on announced dates. For example, it said version 10.4 would be used for exams beginning July 2024. So the copy you saved months ago may not be the one on your screen.
Keep a quick record of your study copy:
| Field | Your entry |
|---|---|
| FE discipline | |
| Exam date (if scheduled) | |
| Version on the PDF's cover | |
| NCEES exam-use date for that version (if listed) | |
| Date you downloaded it | |
| Date you rechecked MyNCEES |
Recheck when you schedule your exam and again a couple of weeks before it. If a different version applies to your exam date, switch to that copy and redo a few drill items below.
How the handbook works on exam day
| Question | Answer |
|---|---|
| What do I get? | The current version of the FE Reference Handbook, onscreen, as a searchable PDF. |
| How do I search it? | Use the search box on the left side of the handbook panel. Ctrl+F doesn't work. |
| Will it fit next to the question? | Yes. Every examinee uses a 24-inch monitor so the question and handbook show side by side. |
| What zoom should I use? | It's usually best at 100%. Zoom in or out if a table is hard to read. |
| When do I learn the controls? | The 8-minute tutorial at the start shows how to open the handbook, flag questions, and move through the exam. |
| Can I bring my own copy? | No. Books and notes aren't allowed in the testing room. |
| What do I write on? | You get 2 reusable booklets and 3 markers. |
| Calculator? | One NCEES-approved calculator. An onscreen TI-30XS is also available. |
| What if the handbook or software misbehaves? | Tell the test administrator right away. |
Source: NCEES Examinee Guide, May 2026, pp. 8–10.
Want to see the search panel before test day? NCEES has a short video: how to search the onscreen NCEES reference handbook.
One habit to break early: when you study with your downloaded PDF, click into your reader's search box instead of pressing Ctrl+F. You won't have the shortcut on exam day.
Lookup drill: where would you find it?
Original practice from Castleport Test Prep, not NCEES questions. Open your own copy of the handbook beside this drill.
These 30 ungraded lookups build your own section map. Each item names something you might need mid-problem. Pick a starting section, then search your copy with the suggested term to see it for yourself.
The suggested starting points are editorial guidance, not a current-edition contents list. More than one section may be useful. Record the actual heading and the requested check for each lookup. If a search comes up empty, record "not found" and the terms and sections you tried.
The NCEES 10.3 and 10.4 correction lists cited below document those editions only; they do not establish locations in your copy.
D01. A factor to convert horsepower to kilowatts.
- A. Dynamics
- B. Units and Conversion Factors
- C. Statics
- D. Chemistry and Biology
Suggested starting point: B. Units and Conversion Factors. Try Units and Conversion Factors first. Check that the entry gives the conversion you need.
Search term to try: horsepower
Check your lookup: Record the actual heading, the conversion direction, and how horsepower is defined, if specified.
D02. Whether you may seal drawings you didn't prepare or directly supervise.
- A. Civil Engineering
- B. Safety
- C. Ethics and Professional Practice
- D. Industrial and Systems Engineering
Suggested starting point: C. Ethics and Professional Practice. For sealing and "responsible charge," try Ethics and Professional Practice.
Search terms to try: responsible charge, seal
Check your lookup: Record the actual heading and the scope or qualification stated with the sealing guidance. This lookup does not determine what your licensing board permits.
D03. What the numbers in an NFPA 704 hazard diamond mean.
- A. Safety
- B. Chemistry and Biology
- C. Environmental Engineering
- D. Civil Engineering
Suggested starting point: A. Safety. The diamond describes chemical hazards. NCEES's 10.3 and 10.4 correction lists both file the NFPA 704 update under Safety. (NCEES 10.3 changes; NCEES 10.4 changes)
Search term to try: NFPA 704
Check your lookup: Record the actual heading and the legend that explains the diamond's numbered ratings.
D04. The least-squares equations for a best-fit line.
- A. Mathematics
- B. Engineering Economics
- C. Instrumentation, Measurement, and Control
- D. Engineering Probability and Statistics
Suggested starting point: D. Engineering Probability and Statistics. Regression is a statistics tool. NCEES's 10.4 correction list places the least-squares fix in this section. (NCEES 10.4 changes)
Search term to try: least squares
Check your lookup: Record the actual heading and the definitions of the variables in the fitted-line equations.
D05. A standard normal (z) table.
- A. Engineering Probability and Statistics
- B. Mathematics
- C. Engineering Economics
- D. Dynamics
Suggested starting point: A. Engineering Probability and Statistics. Distribution tables support probability calculations. Use the table's title and probability convention to identify the entry you need.
Search terms to try: standard normal, unit normal
Check your lookup: Record the actual heading and what area under the normal curve the table's numbers represent.
D06. A table of common derivatives.
- A. Dynamics
- B. Mathematics
- C. Engineering Probability and Statistics
- D. Statics
Suggested starting point: B. Mathematics. Try Mathematics for a calculus reference, even when you need it for a dynamics or statics problem. NCEES's 10.3 correction list shows a derivatives fix there. (NCEES 10.3 changes)
Search term to try: derivative
Check your lookup: Record the actual heading and identify the independent variable used in one listed derivative.
D07. The response of a spring-mass system vibrating freely with no damping.
- A. Mechanics of Materials
- B. Statics
- C. Dynamics
- D. Materials Science
Suggested starting point: C. Dynamics. Vibration is motion over time, so it's a dynamics topic. NCEES's 10.4 correction list added the zero-damping solution in Dynamics. (NCEES 10.4 changes)
Search term to try: vibration
Check your lookup: Record the actual heading and check that the relationship is for free vibration with zero damping. Note any initial conditions it uses.
D08. The Van der Waals equation of state.
- A. Heat Transfer
- B. Fluid Mechanics
- C. Materials Science
- D. Thermodynamics
Suggested starting point: D. Thermodynamics. Equations of state are thermodynamics tools. NCEES's 10.4 correction list fixed this equation in Thermodynamics. (NCEES 10.4 changes)
Search term to try: Van der Waals
Check your lookup: Record the actual heading and the definitions and units attached to the pressure, volume, and equation constants.
D09. The specific weight of a wood species, such as white spruce, for a beam problem.
- A. Mechanics of Materials
- B. Civil Engineering
- C. Statics
- D. Thermodynamics
Suggested starting point: A. Mechanics of Materials. For the white-spruce table, try Mechanics of Materials. NCEES's 10.4 correction list fixed the white spruce value in a table there. (NCEES 10.4 changes)
Search term to try: specific weight
Check your lookup: Record the actual heading, table-column label, and units. Check that you found specific weight rather than density.
D10. A mass balance for how a pollutant moves and breaks down in the environment.
- A. Fluid Mechanics
- B. Environmental Engineering
- C. Chemistry and Biology
- D. Civil Engineering
Suggested starting point: B. Environmental Engineering. "Fate and transport" is environmental engineering's name for this, and NCEES's 10.4 correction list places that mass balance in Environmental Engineering. (NCEES 10.4 changes)
Search term to try: fate and transport
Check your lookup: Record the actual heading and the assumptions stated with the balance, including how reaction or decay is represented.
D11. Global warming potential values for greenhouse gases.
- A. Thermodynamics
- B. Safety
- C. Environmental Engineering
- D. Chemistry and Biology
Suggested starting point: C. Environmental Engineering. Try Environmental Engineering for the greenhouse-gas table. NCEES's 10.4 correction list updated this table there. (NCEES 10.4 changes)
Search term to try: global warming potential
Check your lookup: Record the actual heading and the time horizon and comparison basis shown with the global warming potential values.
D12. The factor of safety for a slope sliding along a slip surface.
- A. Mechanics of Materials
- B. Statics
- C. Environmental Engineering
- D. Civil Engineering
Suggested starting point: D. Civil Engineering. Try Civil Engineering for soil and slope topics. NCEES's 10.4 correction list added slip-surface definitions there. (NCEES 10.4 changes)
Search terms to try: slope, slip surface
Check your lookup: Record the actual heading and what the numerator and denominator of the factor of safety represent for the slip surface shown.
D13. A single-payment present-worth (P/F) factor table.
- A. Engineering Economics
- B. Mathematics
- C. Engineering Probability and Statistics
- D. Statics
Suggested starting point: A. Engineering Economics. Try Engineering Economics for interest-factor tables. Check the interest rate and number of periods before using a factor.
Search terms to try: present worth, P/F
Check your lookup: Record the actual heading and the table's rate and period assumptions. Identify the column that converts a future amount to present worth.
D14. The centroid and area moment of inertia of a triangle.
- A. Dynamics
- B. Statics
- C. Materials Science
- D. Heat Transfer
Suggested starting point: B. Statics. Try Statics for area properties of shapes. Watch the wording: mass moments of inertia are a different quantity.
Search terms to try: centroid, moment of inertia
Check your lookup: Record the actual heading and the reference axis for the triangle's area moment of inertia. Check whether that axis passes through the centroid or lies along an edge.
D15. Mohr's circle for stress in a machine part.
- A. Statics
- B. Materials Science
- C. Mechanics of Materials
- D. Dynamics
Suggested starting point: C. Mechanics of Materials. Transforming stresses to other planes is a mechanics-of-materials tool. Try the name Mohr, then check that the entry is about stress.
Search term to try: Mohr
Check your lookup: Record the actual heading and check whether the diagram is for stress or strain and which sign convention it uses.
D16. A Moody diagram to find a pipe's friction factor.
- A. Heat Transfer
- B. Thermodynamics
- C. Materials Science
- D. Fluid Mechanics
Suggested starting point: D. Fluid Mechanics. Pipe friction is general fluid mechanics, even when the question comes from a civil or mechanical setting.
Search terms to try: Moody, friction factor
Check your lookup: Record the actual heading, chart title, and friction-factor symbol. Check the chart's labels before using a value from it.
D17. Properties of superheated steam.
- A. Thermodynamics
- B. Heat Transfer
- C. Fluid Mechanics
- D. Chemistry and Biology
Suggested starting point: A. Thermodynamics. If your discipline uses steam property tables, practice telling saturated tables from superheated ones quickly.
Search term to try: superheated
Check your lookup: Record the actual heading and table title. Confirm that the table identifies superheated steam, then note its row and column labels.
D18. The thermal resistance of a plane wall for heat conduction.
- A. Thermodynamics
- B. Heat Transfer
- C. Materials Science
- D. Fluid Mechanics
Suggested starting point: B. Heat Transfer. Use the plane-wall description to check the conduction relation you find.
Search terms to try: conduction, thermal resistance
Check your lookup: Record the actual heading and the relation's variable definitions. Check that the stated geometry matches a plane wall.
D19. The iron–carbon phase diagram.
- A. Chemistry and Biology
- B. Thermodynamics
- C. Materials Science
- D. Mechanics of Materials
Suggested starting point: C. Materials Science. Alloy phase diagrams belong to materials science.
Search terms to try: iron, phase diagram
Check your lookup: Record the actual heading, diagram title, and axis labels. Check that the diagram describes the iron–carbon system.
D20. Atomic weights from the periodic table.
- A. Materials Science
- B. Units and Conversion Factors
- C. Environmental Engineering
- D. Chemistry and Biology
Suggested starting point: D. Chemistry and Biology. Look for the element name and its atomic-weight entry. (NIST periodic table)
Search term to try: periodic table
Check your lookup: Record the actual heading and one element's atomic-weight entry. Check its label so you do not confuse it with the atomic number.
D21. How to build a Thévenin equivalent circuit.
- A. Electrical and Computer Engineering
- B. Mathematics
- C. Dynamics
- D. Heat Transfer
Suggested starting point: A. Electrical and Computer Engineering. Note the accented "é": if one spelling finds nothing, try the other.
Search terms to try: Thevenin, Thévenin
Check your lookup: Record the actual heading. Note which quantities the reference uses to describe the equivalent circuit.
D22. A definition of cross-site scripting.
- A. Industrial and Systems Engineering
- B. Electrical and Computer Engineering
- C. Ethics and Professional Practice
- D. Safety
Suggested starting point: B. Electrical and Computer Engineering. Check the exact term: cross-site scripting. (NIST glossary)
Search term to try: cross-site
Check your lookup: Record the actual heading and explain the definition in your own words. If that term is absent, record "not found."
D23. The specific-heat ratio, k, in an isentropic process for an ideal gas.
- A. Heat Transfer
- B. Materials Science
- C. Thermodynamics
- D. Chemistry and Biology
Suggested starting point: C. Thermodynamics. Isentropic ideal-gas relations are thermodynamics. NCEES's 10.4 correction list added the definition of k there. (NCEES 10.4 changes)
Search term to try: isentropic
Check your lookup: Record the actual heading and the definition of k. Check the conditions printed beside the relation.
D24. How a strain gauge's resistance change relates to strain.
- A. Mechanics of Materials
- B. Materials Science
- C. Statics
- D. Instrumentation, Measurement, and Control
Suggested starting point: D. Instrumentation, Measurement, and Control. The task asks about a sensor's electrical response to strain. (NI strain-gage explanation)
Search terms to try: strain gage, strain gauge
Check your lookup: Record the actual heading and the relation's variable definitions. Identify how the resistance change is expressed.
D25. Steady-state formulas for a single-server (M/M/1) queue.
- A. Industrial and Systems Engineering
- B. Engineering Economics
- C. Mathematics
- D. Dynamics
Suggested starting point: A. Industrial and Systems Engineering. Queueing models are an industrial engineering tool.
Search terms to try: queue, queueing
Check your lookup: Record the actual heading. Check that the model has one server, and note any stated condition for using its steady-state formulas.
D26. Rules for counting significant figures.
- A. Mathematics
- B. Units and Conversion Factors
- C. Engineering Probability and Statistics
- D. Statics
Suggested starting point: B. Units and Conversion Factors. Try Units and Conversion Factors for significant-figure rules. NCEES's 10.3 correction list revised a rule there. (NCEES 10.3 changes)
Search term to try: significant figures
Check your lookup: Record the actual heading and summarize one significant-figure rule in your own words. Note when the rule applies.
D27. A conversion from gallons to cubic inches.
- A. Fluid Mechanics
- B. Civil Engineering
- C. Units and Conversion Factors
- D. Environmental Engineering
Suggested starting point: C. Units and Conversion Factors. NCEES's 10.4 correction list added this conversion to the Units list. (NCEES 10.4 changes)
Search term to try: gallon
Check your lookup: Record the actual heading and conversion entry. Check which type of gallon the entry uses.
D28. Newton's method for finding the root of an equation.
- A. Electrical and Computer Engineering
- B. Mathematics
- C. Dynamics
- D. Statics
Suggested starting point: B. Mathematics. Numerical methods are math tools. If Newton returns unrelated results, try the longer search phrase. (NIST: Newton’s method)
Search terms to try: Newton's method, root
Check your lookup: Record the actual heading and method name. Check that the method finds a root of an equation.
D29. A Taylor series expansion.
- A. Engineering Probability and Statistics
- B. Dynamics
- C. Heat Transfer
- D. Mathematics
Suggested starting point: D. Mathematics. A Taylor series is a calculus tool. (NIST: Taylor series)
Search term to try: Taylor
Check your lookup: Record the actual heading and identify the expansion point and any stated conditions for using the series.
D30. A confidence interval for a population mean.
- A. Mathematics
- B. Engineering Economics
- C. Engineering Probability and Statistics
- D. Statics
Suggested starting point: C. Engineering Probability and Statistics. Confidence intervals are statistics. NCEES's 10.3 correction list revised these equations there. (NCEES 10.3 changes)
Search term to try: confidence interval
Check your lookup: Record the actual heading and the conditions printed with one confidence interval for a population mean.
Use your notes to repeat lookups that were slow or unsuccessful. There is no score: the suggested starting section is not a correctness test, and these 30 lookups do not measure FE readiness or cover the full exam.
| Handbook version | Item ID | Actual heading or not found | Requested check or terms and sections tried |
|---|---|---|---|
| D01 | |||
| D02 | |||
| D03 | |||
| D04 | |||
| D05 | |||
| D06 | |||
| D07 | |||
| D08 | |||
| D09 | |||
| D10 | |||
| D11 | |||
| D12 | |||
| D13 | |||
| D14 | |||
| D15 | |||
| D16 | |||
| D17 | |||
| D18 | |||
| D19 | |||
| D20 | |||
| D21 | |||
| D22 | |||
| D23 | |||
| D24 | |||
| D25 | |||
| D26 | |||
| D27 | |||
| D28 | |||
| D29 | |||
| D30 |
Finding a formula isn't the same as choosing it
A search hit gets you to a matching passage. You still have to check that the formula matches what the problem asks for. Here's a short original example.
Example FH-EX-01. Three measurements from a sample are 2, 4, and 6 mm. Find the sample standard deviation.
Search standard deviation or variance in your copy, then read the definitions next to the result before you calculate. The word that matters is sample: the sum of squared deviations is divided by n − 1, and standard deviation is the square root of variance. (NIST/SEMATECH e-Handbook, Measures of Scale)
- Mean: (2 + 4 + 6) ÷ 3 = 4 mm
- Squared deviations: (2 − 4)² + (4 − 4)² + (6 − 4)² = 4 + 0 + 4 = 8 mm²
- Sample variance: 8 ÷ (3 − 1) = 4 mm²
- Sample standard deviation: √4 = 2 mm
Two easy ways to miss it: stop at 4 mm², which is the variance, or divide by 3 instead of 2, which gives the population version (√(8/3) ≈ 1.63 mm). Finding the entry is only the start. The check is what earns the point.
How to study with the handbook
- Keep the PDF open for every practice problem, even ones you can do from memory. You're training the lookup, not just the math.
- Search short nouns, not sentences. Try
Moodyfor a pipe-friction chart. If a search fails, try a simpler word or scroll the section you expect. - When a search misses, write down the word the handbook actually uses. Reuse those terms when you practice again.
- Learn sections, not page numbers. Page numbers shift between versions. Check the headings again when your applicable version changes.
- Read Units and Ethics once, front to back. Both apply to every FE discipline.
- Check conditions before calculating, like the example above: sample or population, gauge or absolute, SI or US units.
- Separate a slow lookup from a concept gap. If you found the right formula but couldn't use it, that's a topic to review, not a search problem.
For a full study plan and practice problems, see FE exam prep.
Is there a separate handbook for FE Civil or FE Mechanical?
NCEES directs FE candidates to the FE Reference Handbook and lists separate exam specifications for all seven FE exams: Chemical, Civil, Electrical and Computer, Environmental, Industrial and Systems, Mechanical, and Other Disciplines. (NCEES FE exam page) Choose the FE Reference Handbook in MyNCEES.
What differs is which sections you'll use most. Your discipline's exam specification lists the topics your exam covers, so use it to decide what to practice and the handbook to solve. You'll find the specifications on the NCEES FE exam page.
If you're studying for a specific discipline, these free pages pair well with the handbook: FE Civil exam prep, FE Electrical and Computer exam prep, and FE Chemical exam prep.
Trouble with the PDF?
I can't log in to MyNCEES
Follow the onscreen prompts to recover your username or password. If you no longer have the email or phone number on the account, contact NCEES Client Services to update it rather than opening a new account. (MyNCEES FAQs)
Formulas or symbols look wrong
Save the PDF to your computer and open the saved file instead of viewing it in your browser. That's NCEES's suggested fix. (NCEES help)
Can I print or highlight my study copy?
Yes. You can print it for personal use. If you save the PDF and open it in Adobe Acrobat, you can highlight and add comments. (Printing, annotating) None of that carries into the exam: you'll use NCEES's onscreen copy, and your own copy stays outside. Do most of your practice with the PDF, because that's how you'll use it on exam day.
Common questions
Does a new handbook version mean the exam changed?
Not by itself. The handbook is reference material. What the exam covers is set by the separate discipline specifications on the NCEES FE exam page.
Does the handbook have every formula I'll need?
Don't count on it. Knowing your core concepts still matters. Use your discipline's exam specification to decide what to study, then check what your current handbook contains. A search hit still has to match the problem's conditions and units.
Sources
- NCEES Examinee Guide, May 2026, p. 8 (calculator and prohibited items), p. 9 (scratch materials), and p. 10 (reference materials, tutorial, reporting problems). Current guide linked from the NCEES Examinee Guide page.
- NCEES: Exam Reference Handbooks, updated November 4, 2024 (free download, printing, redistribution, display problems)
- NCEES: Editable Handbook, updated October 7, 2022 (highlighting a saved copy)
- MyNCEES login and FAQs (existing accounts, recovery, duplicate accounts)
- NCEES FE Reference Handbook 10.4 changes, posted May 1, 2024, and 10.3 changes, posted June 1, 2023 (historical corrections and section labels; the July 2024 exam-use date for version 10.4)
- NCEES FE exam page (the seven FE disciplines, exam specifications, and handbook access)
- NCEES video: how to search the onscreen reference handbook
- NIST/SEMATECH e-Handbook, §1.3.5.6 Measures of Scale (sample standard deviation)
- NIST periodic table publication and NIST cross-site scripting glossary (lookup concepts, not handbook locations)
- NI: Measuring Strain with Strain Gages, "Measuring Strain" (the resistance-and-strain lookup concept)
- NIST Digital Library of Mathematical Functions, §3.8 and §1.10 (Newton's method and Taylor series)
Last verified October 7, 2026: NCEES's handbook access instructions and exam-day reference rules. Check the version for your exam in MyNCEES.
By the Castleport Test Prep Editorial Team. See how we build and check our pages in our methodology.
AI tools assisted with drafting, source checking, and consistency checks. This is not a professional engineering review. See our editorial standards.
Castleport Test Prep is an independent exam prep publisher. We're not affiliated with, endorsed by, or approved by NCEES. Exam and credential names are used to identify the exam and its owner, and trademarks belong to their respective owners. The lookup drill and worked example are original and unofficial, and we don't reproduce the handbook.