FE Other Disciplines

Broad engineering science — statics, dynamics, fluids, thermal, electrical, materials, and economics.

Practice questions: 1,600+
Study topics: 14
Study topics: …
Study concepts: 73
Difficulty levels: 3
Mock exams: Unlimited

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3-, 6- and 12-month passes carry the Pass Promise: finish two full mock exams and reach a readiness score of 70 before your exam, and if you don't pass, your access is extended free until your retake, up to 6 months. Terms

What's inside

14 study topics, weighted to the NCEES blueprint — tap any topic to drill it.

Mathematics

Analytic geometry & trigonometry, single-variable calculus, differential equations, linear algebra, and numerical methods.Probability and Statistics

Distributions and expected value, point and interval estimation, hypothesis testing, and goodness of fit.Chemistry

Stoichiometry and equilibrium, acids/bases and pH, oxidation-reduction and corrosion, and gas laws.Instrumentation and Controls

Sensors and transducers, data acquisition, sampling and A/D resolution, signal conditioning, and logic diagrams.Ethics and Societal Impacts

NCEES Model Rules, licensure and public protection, intellectual property, sustainability and life-cycle impacts.Safety, Health, and Environment

Industrial hygiene and exposure limits, radiation half-life, ventilation rates, gas detection, confined spaces, and hazard communication.Engineering Economics

Time value of money, cost analysis, break-even and benefit-cost, depreciation, replacement, and decision analysis.Statics

Force systems and resultants, equilibrium and support reactions, trusses and frames, friction, centroids, and moments of inertia.Dynamics

Kinematics, Newton's second law, work-energy and impulse-momentum, rotation, mass moment of inertia, and natural frequency.Strength of Materials

Axial, bending, torsion and shear stress, deformations, shear-moment diagrams, Mohr's circle, column buckling, and failure theories.Materials

Phase diagrams and phase change, mechanical and thermal properties, electrical properties, and material selection.Fluid Mechanics

12%

Fluid statics, Bernoulli and momentum, pipe friction losses, open-channel flow, flow measurement, dimensionless numbers, and turbomachinery.Basic Electrical Engineering

Charge, current and voltage laws, DC and AC circuits, reactance and impedance, three-phase power, and measuring devices.Thermodynamics and Heat Transfer

First and second laws, properties and phase diagrams, processes and cycles, conduction/convection/radiation, combustion, and psychrometrics.

See a real question

Straight from the FE Other Disciplines bank — 1,600+ questions, every one with a full worked solution.

medium

A. Time value of money, cost analysis, break-even & benefit-cost

An engineer borrows $200,000 to be repaid in 15 equal end-of-year payments at 6% per year. The annual payment is most nearly:

$8,593
$13,333
$20,593 (correct answer)
$25,333

Worked solution

The capital recovery factor (FE Reference Handbook 10.6 p. 235) converts a present amount into equal end-of-year payments:

(A/P,\ 6\%,\ 15)=\dfrac{i(1+i)^n}{(1+i)^n-1}=\dfrac{0.06\,(1.06)^{15}}{(1.06)^{15}-1}=0.10296

, printed as 0.1030 in the handbook's 6% factor table. The annual payment is $200,000 × 0.10296 = $20,593. Distractors:

P/n

, spreading the principal evenly and ignoring interest ($13,333); the sinking-fund factor

(A/F)

read in place of

(A/P)

($8,593), which treats the loan as a future sum; and simple interest on the full principal for all 15 years, spread evenly,

P(1+in)/n

($25,333), which charges interest on money already repaid.

Difficulty mix

How this bank splits by our own difficulty rating, from quick wins to multi-step problems.

Easy29%
Medium47%
Hard23%

Study handbook

73 concepts — worked theory, key equations, and common pitfalls for every topic.

Sample concept

Single-Variable Calculus

Limits, derivatives, optimization, definite and indefinite integrals, the Fundamental Theorem, area, and L'Hopital — the calculus the FE asks across nearly every topic.

Calculus is the single most pervasive idea on the FE: a velocity is the derivative of position, a flow rate the derivative of volume, an accumulated mass the integral of a rate, an area the integral of a height. The exam almost never asks for calculus in the abstract — it hands you a function and wa…

f'(x)=\lim_{\Delta x\to 0}\dfrac{f(x+\Delta x)-f(x)}{\Delta x}

Open the study handbook

The FE Other Disciplines exam at a glance

Sourced from NCEES — the numbers, not the folklore.

Questions: 110; scored and pretest, one sitting
Exam time: 5h 20m; in a 6h appointment · about 2.9 min per question
First-time pass rate: 61%; 29% for repeat takers · NCEES Squared 2025 (FY2024-25)
NCEES fee: $225; per attempt, paid to NCEES; your state board's fees are separate
Retakes: 3 per 12 months; at most one attempt per testing window
Reference on screen: FE Reference Handbook 10.6; closed book: no notes or references of your own

What NCEES says is on it

Every knowledge area in the official FE Other Disciplines specification, with the number of questions NCEES says each one gets. The five heaviest are about 48% of the exam. Share is our arithmetic, not an NCEES figure: each range's midpoint as a percentage of all the midpoints.

Knowledge area	Questions	Share
Fluid Mechanics	12–18	12%
Dynamics	9–14	9%
Statics	9–14	9%
Strength of Materials	9–14	9%
Thermodynamics and Heat Transfer	9–14	9%
Mathematics	8–12	8%
Basic Electrical Engineering	6–9	6%
Engineering Economics	6–9	6%
Materials	6–9	6%
Probability and Statistics	6–9	6%
Safety, Health, and Environment	6–9	6%
Chemistry	5–8	5%
Engineering Ethics and Societal Impacts	5–8	5%
Instrumentation and Controls	4–6	4%

Sources: NCEES FE Other Disciplines exam specification (Effective beginning with the July 2020 examinations) · pass rate: NCEES Squared 2025 (FY2024-25) · fee and retake policy: ncees.org, read 2026-09-15. Your state board sets its own fees and deadlines.

How to prepare for FE Other

Four steps, in the order that pays off — each one built from this exam's own blueprint.

1
Study to the blueprint, not the textbook
Fluid Mechanics, Dynamics, Statics, Strength of Materials, and Thermodynamics and Heat Transfer are about 48% of the exam. Give them that share of your hours — Instrumentation and Controls is only 4–6 questions.
See every area's question range
2
Practice one area at a time, then mix
Work a knowledge area until its worked solutions stop surprising you, then switch to mixed sets so recognizing the problem type becomes the skill.
Practice FE Other questions
3
Sit timed mock exams at the real pace
The real exam gives you about 2.9 minutes per question. Full-length timed mocks are the only way to find out whether you can hold that pace for 5h 20m.
Take a mock exam (with a pass)
4
Read what the exam actually asks
FE Other Disciplines ties for the lowest first-time pass rate of the seven FE exams, not the highest, and half of it is mechanics. All seven compared on the published specifications.
Which FE exam should you take? Other Disciplines vs your major

Questions, answered

How hard is the FE Other Disciplines exam?

NCEES reports a 61% pass rate for first-time takers of FE Other Disciplines and 29% for repeat takers in NCEES Squared 2025 (FY2024-25). It is 110 questions in 5h 20m, about 2.9 minutes per question, so pacing matters as much as knowledge. The heaviest areas are Fluid Mechanics, Dynamics, Statics, Strength of Materials, and Thermodynamics and Heat Transfer.

What topics are on the FE Other Disciplines exam?

NCEES's FE Other Disciplines specification lists 14 knowledge areas with a question range for each. The heaviest are Fluid Mechanics (12–18 questions), Dynamics (9–14 questions), Statics (9–14 questions), Strength of Materials (9–14 questions), and Thermodynamics and Heat Transfer (9–14 questions) — together about 48% of the exam. The full list is in the exam-at-a-glance table on this page.

How long is the FE Other Disciplines exam?

The FE Other Disciplines exam is 110 questions in 5h 20m of exam time, inside a 6h appointment that also covers the nondisclosure agreement, the tutorial and a scheduled break. It is a closed-book, computer-based test offered year-round at Pearson VUE test centers.

What reference material do you get on FE Other Disciplines exam day?

The FE Other Disciplines exam is closed book. NCEES provides an electronic reference on screen (FE Reference Handbook 10.6). No notes, books or references of your own come into the room; you may bring one NCEES-approved calculator, and an on-screen TI-30XS calculator is also available during the exam. Practicing with that same reference in front of you, so you already know where each method lives, is half the preparation.

How much does the FE Other Disciplines exam cost, and can you retake it?

The NCEES fee for the FE Other Disciplines exam is $225, paid per attempt when you register through your MyNCEES account; some state licensing boards also charge their own application fee. NCEES allows one attempt per testing window and no more than three attempts in a 12-month period.

What do I get with FE Other Disciplines on FE → PE Prep?

1,600+ FE Other Disciplines practice questions, every one with a step-by-step worked solution; unlimited full-length timed mock exams weighted to the NCEES blueprint; a 73-concept study handbook, 650+ flashcards, and an AI tutor. Access is a one-time pass for 1, 3, 6 or 12 months — no subscription, no auto-renew — and the free sample questions need no account. Within 7 days, with little or no paid content used, you can ask for a refund, which we consider under the Refund Policy.

Free reading for FE Other

No account needed — pass rates, worked problems, and what the exam actually asks.

Free FE Other practice problemsReal questions from the bank, with the figures and full worked solutions.Free FE Other formula sheet151 key equations by exam topic, each with what it is for and its handbook reference.Which FE exam should you take? Other Disciplines vs your majorFE Other Disciplines ties for the lowest first-time pass rate of the seven FE exams, not the highest, and half of it is mechanics. All seven compared on the published specifications.FE Other Disciplines practice problems: breadth, no depthThree FE Other Disciplines practice problems worked in full (beam reactions, pH, a time-weighted exposure average), and why it is the only FE exam with both a statics and a chemistry knowledge area.Do you need a prep course to pass the FE or PE?Nothing in NCEES's rules asks for one, and the handbook is free. What a course adds, who gains from one, and a ten-problem test to run before paying anyone.

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