FE Other Disciplines Exam: Your Complete Resource Hub

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The FE Other Disciplines exam is the broadest of the six FE exams offered by NCEES. It is designed for engineers whose undergraduate degree doesn’t fit neatly into one of the discipline-specific exams—think industrial, aerospace, agricultural, biomedical, nuclear, mining, petroleum, and systems engineering. That breadth is both the exam’s defining characteristic and its biggest challenge: you need working knowledge across 13 topic areas that span statics, thermodynamics, electrical theory, materials science, and more. This page brings together everything you need to prepare—exam details, topic weights, study strategy, practice problems, and the tools that will help you on exam day.

Who Should Take the FE Other Disciplines Exam?

Any engineering graduate can choose to sit for the FE Other Disciplines exam, but it is specifically designed for candidates whose degree program doesn’t align with the Civil, Mechanical, Electrical & Computer, Chemical, or Environmental FE exams. Common backgrounds include:

• Industrial engineering — process optimization, operations research, and manufacturing systems
• Aerospace engineering — structural analysis, thermodynamics, and dynamics
• Biomedical engineering — instrumentation, materials science, and signal processing
• Agricultural engineering — fluid mechanics, soil mechanics, and environmental systems
• Nuclear engineering — thermodynamics, heat transfer, and safety systems
• Mining and petroleum engineering — statics, strength of materials, and fluid flow
• Systems engineering — controls, instrumentation, and engineering economics

If you earned your degree in one of these fields and want to begin the path to PE licensure, this is your exam. For a detailed topic-by-topic study plan, see our FE Other Disciplines study guide.

What Does the FE Other Disciplines Exam Cover?

The exam spans 13 topic areas—four shared foundational subjects that appear on every FE exam, and nine topics specific to the Other Disciplines specification. The NCEES exam specification assigns each topic a percentage weight range:

Part 1: Shared Foundations (4 topics)

• Mathematics: 8–12% (8–12 questions)
• Probability and Statistics: 4–7% (4–7 questions)
• Ethics and Professional Practice: 4–7% (4–7 questions)
• Engineering Economics: 4–7% (4–7 questions)

Part 2: Discipline-Specific (9 topics)

• Statics: 7–11% (7–11 questions) — high priority
• Strength of Materials: 7–11% (7–11 questions) — high priority
• Thermodynamics and Heat Transfer: 7–11% (7–11 questions) — high priority
• Electricity, Power, and Magnetism: 7–11% (7–11 questions) — high priority
• Instrumentation and Controls: 5–8% (5–8 questions)
• Safety: 5–8% (5–8 questions)
• Dynamics: 4–6% (4–6 questions)
• Materials Science: 4–6% (4–6 questions)
• Fluid Mechanics: 4–6% (4–6 questions)

The four high-priority discipline topics alone can account for 28–44% of the exam. When combined with the shared Part 1 subjects, you are looking at roughly two-thirds of all questions concentrated in eight areas. If your study time is limited, those eight topics deliver the highest return.

Which Topics Carry the Most Weight?

The FE Other Disciplines exam differs from every other FE exam in that no single topic dominates. Instead, four discipline-specific topics share the top tier at 7–11% each. This means your preparation needs to be broader rather than deeper on any one subject. Here is how to think about prioritization:

1. Statics (7–11%) — Free-body diagrams, equilibrium equations, trusses, centroids, and moments of inertia. These are foundational problems that reward systematic setup and careful unit tracking.
2. Strength of Materials (7–11%) — Stress, strain, Mohr’s circle, beam deflection, and column buckling. Builds directly on Statics concepts, so studying them back-to-back is efficient.
3. Thermodynamics and Heat Transfer (7–11%) — First and second law applications, ideal gas processes, heat exchangers, and conduction/convection/radiation. Know how to use property tables in the Reference Handbook.
4. Electricity, Power, and Magnetism (7–11%) — DC and AC circuit analysis, power calculations, transformers, and electromagnetic fundamentals. Be comfortable with Ohm’s law, Kirchhoff’s laws, and phasor analysis.

After the four high-weight topics, the medium-weight subjects—Instrumentation and Controls, Safety, Dynamics, Materials Science, and Fluid Mechanics—each contribute 4–8% of the exam. None of these should be skipped entirely, but they are where you can be more strategic about depth versus breadth.

How Should You Prepare?

Most successful candidates invest 200–300 hours of focused study over 8 to 16 weeks. Because the FE Other Disciplines exam covers such a wide range of engineering fundamentals, your study approach matters as much as the hours you put in:

1. Start with a diagnostic. Take a timed practice set covering all 13 topic areas. Identify where your gaps are before you build your schedule. There is no point spending a week on Statics if you already ace those problems.
2. Prioritize by weight. Focus your first weeks on the four high-weight discipline topics (Statics, Strength of Materials, Thermo, Electricity). These represent the largest block of questions and are where targeted study pays off the most.
3. Learn the Reference Handbook. NCEES provides a searchable digital copy of the FE Reference Handbook during the exam. Knowing exactly where to find beam deflection formulas, thermodynamic property tables, and circuit equations saves critical minutes on exam day.
4. Cover the medium-weight topics. Once you are solid on the high-weight areas, cycle through Instrumentation & Controls, Safety, Dynamics, Materials Science, and Fluid Mechanics. Aim for competence rather than mastery—being able to solve 60–70% of questions in each area goes a long way.
5. Practice under exam conditions. At 2.9 minutes per question, pacing matters. Work through problems with a timer. If a problem takes too long, flag it and move on—the exam interface lets you return to flagged questions later.
6. Review every missed question. Understand why you got it wrong. Was it a concept gap, a formula lookup issue, a unit conversion error, or a calculator mistake? Each type needs a different fix.

What Study Materials Do You Need?

You do not need an expensive prep course. Here are the essentials:

• TI-36X Pro calculator — The most popular NCEES-approved calculator. Other Disciplines problems span everything from circuit analysis to thermodynamic calculations, so become proficient with scientific notation, equation solving, and unit conversions. See our calculator comparison guide for alternatives.
• NCEES FE Reference Handbook — Buy a printed copy you can tab and annotate during study sessions. The same content is provided digitally on exam day. Knowing the handbook’s layout is one of the biggest time-savers during the actual exam.
• A quality review manual — Choose one that covers all 13 Other Disciplines topics with worked examples. See our best FE exam prep books guide for detailed comparisons.
• Practice problems — Solving problems is where real learning happens. Our FE Other Disciplines practice problems include step-by-step solutions across all major topics, from free-body diagrams to AC circuit analysis to heat transfer calculations.

How Much Does the FE Other Disciplines Exam Cost?

The exam itself costs $175, paid to NCEES when you register online. Some states charge an additional application fee (typically $25–50). Factor in a calculator ($20–25 for the TI-36X Pro), the reference handbook, and any review materials you choose. Most candidates spend $200–400 total—significantly less than live prep courses and a small investment toward a career-long PE license.

Registration is done through your MyNCEES account. Once approved by your state board, you can schedule your exam at any Pearson VUE testing center. The exam is offered year-round, so pick a date that aligns with your study timeline. Before test day, review our exam day checklist to make sure you have everything in order.

What Happens After You Pass?

Passing the FE exam earns you the Engineer Intern (EI) or Engineer in Training (EIT) designation, depending on your state. This is the first of two exams on the path to full PE licensure. After gaining the required professional experience (typically four years under a licensed PE), you become eligible to sit for the PE exam in your chosen discipline.

For engineers in fields like industrial, aerospace, or biomedical engineering, PE licensure opens doors that a degree alone cannot. Licensed PEs can sign and seal engineering drawings, serve as the engineer of record on projects, and take on roles that require professional accountability. In consulting, defense, and infrastructure sectors, PE licensure is increasingly a requirement for advancement to senior technical and management positions.

Where Should You Start?

We have built resources specifically for FE Other Disciplines candidates. Here is the recommended path:

Frequently Asked Questions

Disclaimer: This guide is an independent educational resource and is not affiliated with, endorsed by, or sponsored by NCEES. The “Fundamentals of Engineering” exam, “FE” exam, and “NCEES” are trademarks of the National Council of Examiners for Engineering and Surveying. Exam specifications and content are subject to change; always refer to the official NCEES website for the most current information.