Today, let's talk about the FE Electrical & Comuputer exam knowledge areas. If you are preparing for the FE Electrical & Computer exam, you need to know exactly what is on it before you open a single study resource. The exam tests you across 17 knowledge areas in 110 questions over six hours. How you allocate your study time across those areas will make or break your result.
I have been through this exam in November 2021 and couldn't pass on my first trial. I sat for the exam again and passed in February 2022. After going through all the steps and finally obtained my PE license, I have mentored engineers preparing for it from the United States, Canada, and international engineer from various countries. The pattern is consistent: candidates who understand the exam blueprint before they start studying outperform those who do not. The success and challenges are the same, every time.
Let me break down the full exam structure for you now.
When I was preparing for my first FE attempt, I lost count of how many questions came from each knowledge area. I studied what I was comfortable with and ignored my gaps. That is a losing strategy. You must know exactly what you are walking into — before day one.
What the FE Electrical & Computer Exam Looks Like
| Item | Detail |
|---|---|
| Questions | 110 |
| Total exam time | 6 hours (includes tutorial and optional break) |
| Format | Computer-based at Pearson VUE |
| Reference | NCEES FE Reference Handbook (on screen throughout) |
| Units | Both SI and U.S. Customary System (USCS) |
| Annual testing windows | Jan–Mar · Apr–Jun · Jul–Sep · Oct–Dec |
The exam is closed-book. However, you have the full NCEES FE Reference Handbook on screen for the entire six hours. You cannot bring printed notes, textbooks, or personal formula sheets. What separates prepared candidates from unprepared ones is knowing exactly where every formula lives in that handbook before exam day.
All 17 Knowledge Areas
NCEES divides the FE Electrical & Computer exam into 17 distinct knowledge areas. The table below is taken directly from the official NCEES FE Electrical & Computer CBT Exam Specification, effective July 2020. Always download the specification from ncees.org and verify it is current before you begin studying.
| # | Knowledge Area | Questions (approx.) |
|---|---|---|
| 1 | Mathematics | 11–17 |
| 2 | Probability and Statistics | 4–6 |
| 3 | Ethics and Professional Practice | 4–6 |
| 4 | Engineering Economics | 5–8 |
| 5 | Properties of Electrical Materials | 4–6 |
| 6 | Circuit Analysis (DC and AC Steady State) | 11–17 |
| 7 | Linear Systems | 5–8 |
| 8 | Signal Processing | 5–8 |
| 9 | Electronics | 7–11 |
| 10 | Power Systems | 8–12 |
| 11 | Electromagnetics | 4–6 |
| 12 | Control Systems | 6–9 |
| 13 | Communications | 5–8 |
| 14 | Computer Networks | 4–6 |
| 15 | Digital Systems | 8–12 |
| 16 | Computer Systems | 5–8 |
| 17 | Software Engineering | 4–6 |
The question counts above are the approximate ranges published in the NCEES exam specification. Your actual exam will have exactly 110 questions distributed across these 17 areas within those ranges. Download and read the full specification at ncees.org/engineering/fe/ — it is free, and it is the most important document in your entire preparation.
What Each Knowledge Area Tests
1. Mathematics (11–17 questions)
Algebra, trigonometry, complex numbers, analytic geometry, calculus (single- and multivariable), ordinary differential equations, linear algebra, and vector analysis. This area is foundational — it underpins Circuit Analysis, Linear Systems, and Control Systems throughout the exam.
2. Probability and Statistics (4–6 questions)
Measures of central tendency (mean, mode), probability distributions (discrete, continuous, normal, binomial, conditional), and expected value. More manageable than it sounds — do not skip it. These are efficient points.
3. Ethics and Professional Practice (4–6 questions)
NCEES Model Law and Model Rules, codes of ethics for professional and technical societies, intellectual property (copyright, patents, trademarks), and safety topics including grounding, PPE, and radiation protection. Conceptual, not computational. The ethics sections in the Reference Handbook are your primary study resource.
4. Engineering Economics (5–8 questions)
Time value of money (present value, future value, annuities), cost estimation, risk identification, and analysis methods (cost-benefit, trade-off, break-even). These formulas appear on every engineering exam. Know them and know where they live in the handbook.
5. Properties of Electrical Materials (4–6 questions)
Semiconductor materials (tunneling, diffusion/drift current, energy bands, doping, p-n theory), electrical properties (conductivity, resistivity, permittivity, magnetic permeability, noise), and thermal properties (conductivity, expansion). Know the relationships between these properties.
6. Circuit Analysis — DC and AC Steady State (11–17 questions)
KCL, KVL, series/parallel equivalents, Thevenin and Norton theorems, node and loop analysis, waveform analysis (RMS, average, frequency, phase, wavelength), phasors, and impedance. One of the two highest-weighted areas on the entire exam. Power engineers should score well here — but deliberate practice is still required.
7. Linear Systems (5–8 questions)
Frequency and transient response, resonance, Laplace transforms, and transfer functions. Connects directly to Control Systems — study the two areas together for maximum efficiency.
8. Signal Processing (5–8 questions)
Sampling (aliasing, Nyquist theorem), analog filters, and digital filters (difference equations, Z-transforms). Power engineers frequently underestimate this area. Budget dedicated time for it — the concepts are learnable with focused effort.
9. Electronics (7–11 questions)
Models, biasing, and performance of discrete devices (diodes, transistors, thyristors), amplifiers (single-stage/common emitter, differential, biasing), operational amplifiers (ideal and nonideal), instrumentation (measurements, data acquisition, transducers), and power electronics (rectifiers, inverters, converters). Power engineers most commonly leave points here by not preparing adequately. Do not skip it.
10. Power Systems (8–12 questions)
Power theory (power factor, single-phase and three-phase, voltage regulation), transmission and distribution (real and reactive losses, efficiency, voltage drop, delta and wye connections), transformers (single- and three-phase connections, reflected impedance), and motors and generators (synchronous, induction, dc). This is your home territory. Maximize your score here.
11. Electromagnetics (4–6 questions)
Electrostatics and magnetostatics (spatial relationships, vector analysis), electrodynamics (Maxwell equations, wave propagation), and transmission lines (high frequency). Study to the level the Reference Handbook covers.
12. Control Systems (6–9 questions)
Block diagrams (feedforward and feedback), Bode plots, closed-loop and open-loop response, stability, and controller performance (steady-state errors, settling time, overshoot). This trips up many power engineers. Give it serious, structured study time.
13. Communications (5–8 questions)
Basic modulation and demodulation (AM, FM, PCM), Fourier transforms and Fourier series, multiplexing (time division, frequency division, code division), and digital communications. Study to the depth covered in the Reference Handbook.
14. Computer Networks (4–6 questions)
Routing and switching, network topologies (mesh, ring, star), network types (LAN, WAN, internet), network models (OSI, TCP/IP), network intrusion detection and prevention, and security fundamentals. Limited in scope — efficient to prepare.
15. Digital Systems (8–12 questions)
Number systems, Boolean logic, logic gates and circuits, logic minimization (SOP, POS, Karnaugh maps), flip-flops and counters, programmable logic devices and gate arrays, state machine design, and timing. One of the higher-weighted areas — do not underinvest here.
16. Computer Systems (5–8 questions)
Microprocessors, memory technology and systems, and interfacing. Know the fundamentals well — the scope is limited but the concepts must be solid.
17. Software Engineering (4–6 questions)
Algorithms (sorting, searching, complexity, big-O notation), data structures (lists, trees, vectors, arrays), and software implementation (iteration, conditionals, recursion, control flow, scripting, testing). Approachable for engineers — focus on algorithmic thinking and big-O complexity.
How to Prioritize if You Are a Power Engineer
Your background matters — but it will not save you if you leave gaps.
Dominate these (your strength zones)
- Power Systems (#10) — your home base; maximize your score here
- Circuit Analysis (#6) — highest question count alongside Mathematics; prepare systematically
- Mathematics (#1) — highest question count on the exam; refresh calculus and differential equations
Close these gaps (where most power engineers lose points)
- Control Systems (#12) — 6–9 questions; not your daily work, but fully learnable
- Electronics (#9) — 7–11 questions; the most commonly skipped, the most regretted
- Digital Systems (#15) — 8–12 questions; a meaningful portion of your score
- Signal Processing (#8) — 5–8 questions; invest at least a full week here
Score efficiently with focused review
- Ethics (#3) — conceptual, not computational; use the handbook's ethics section
- Engineering Economics (#4) — formula-driven; efficient to prepare
- Probability and Statistics (#2) — approachable with targeted review
- Computer Networks (#14) — limited scope; efficient to prepare
Every knowledge area is worth the same points per question. A question you miss in Signal Processing costs exactly as much as one you miss in Power Systems. Prepare accordingly.
Start your preparation by downloading the official NCEES FE Electrical & Computer exam specification from ncees.org/engineering/fe/. It is free. It is the most important document in your entire study process. Every question on the exam flows directly from that specification.
Summary
The FE Electrical & Computer exam covers 17 knowledge areas across 110 questions in six hours. The two highest-weighted areas are Mathematics (11–17 questions) and Circuit Analysis (11–17 questions). Power Systems carries 8–12 questions and Digital Systems carries 8–12 — both demanding serious preparation. If you come from a power background, your advantage is in Power Systems and Circuit Analysis — but your risk is in Control Systems, Electronics, Signal Processing, and Digital Systems. Know the blueprint before you start studying. Download the NCEES exam specification first. Build your plan around your gaps. Read more here FE electrical & computer guide.
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