Alabama Electrical Contractor Exam: Complete 2026 Study Guide
You've put in the field hours. Now you need the license to prove it. The Alabama electrical contractor exam is the final gate between you and your unrestricted contractor license — and it covers everything from NEC code calculations to business law. This guide breaks down exactly what's on the exam, what books to bring, and how to prepare so you walk out with a passing score.
Start by getting a feel for the question style with our free practice exam, then come back here for the full picture.
Alabama Electrical Contractor Exam Overview
The Alabama electrical contractor exam is administered by Prov, Inc. on behalf of the Alabama Electrical Contractors Board (AECB). The exam contains 110 scored multiple-choice questions and you have 300 minutes (5 hours) to complete it. The exam also includes 10 additional unscored experimental questions that do not count toward your score — these are pilot items Prov uses to develop future versions of the exam.
To pass, you need a 75% or better. Your results are scored at the testing center, forwarded to the Board, and the Board mails your score.
This is an open-book exam. You bring your approved references and use them. That said, the exam isn't slow — 110 questions in 5 hours means you can't spend five minutes flipping pages for every question. Speed with your books matters.
The 110 scored questions split into two main areas:
- 30 questions covering business and law topics
- 80 questions covering electrical knowledge and the NEC
Check the official exam bulletin and the state licensing website for the most current requirements.
Topics Covered on the Alabama Electrical Contractor Exam
The exam tests you across 25 topic areas. Below is every area and its weight in scored questions.
Business & Law Topics (30 questions)
| Topic | Exam Questions |
|---|---|
| Business Organization | 1 |
| Risk Management | 2 |
| Project Management | 2 |
| Estimating | 4 |
| Safety and Environmental | 2 |
| Labor Laws | 3 |
| Payroll and Employment Taxes | 4 |
| Financial Management | 4 |
| Contracts | 3 |
| Lien Laws | 1 |
| Licensing Laws | 4 |
Electrical Topics (80 questions)
| Topic | Exam Questions |
|---|---|
| General Electrical Knowledge | 10 |
| Grounding and Bonding | 9 |
| Conductors and Cables | 10 |
| Raceways and Boxes | 8 |
| Service, Feeders, and Branch Circuits | 10 |
| Overcurrent Protection | 6 |
| Motors | 6 |
| Safety Information | 5 |
| Special Occupancies and Equipment | 4 |
| Electrical Power | 3 |
| Lighting | 3 |
| Low Voltage | 2 |
| Illuminated Signs | 2 |
| Fire Detection and Alarm Systems | 2 |
The heaviest electrical topics — General Electrical Knowledge, Conductors and Cables, Service/Feeders/Branch Circuits, and Grounding and Bonding — together account for nearly half the electrical questions. Put serious time there.
Sample Exam Questions
Here are five questions drawn from the types you'll see on the real exam. Read them carefully, take your best shot, and see how you do — but don't scroll for the answers here. Head to our free practice exam to check your reasoning.
Question 1 — Overcurrent Protection (Hard)
You are an electrical contractor installing a feeder tap in a high-bay manufacturing building with walls over 35 feet high. The tap conductors will be 90 feet long total and 20 feet horizontal. What is the minimum height above the floor at which the tap connection must be made?
- A) 25 feet
- B) 20 feet
- C) 35 feet
- D) 30 feet
This question tests your knowledge of NEC tap conductor rules — specifically, the high-bay exception that opens up longer tap lengths under specific height conditions.
Question 2 — Service, Feeders, and Branch Circuits (Hard)
You are called to a commercial facility where a new HVAC system is being installed. The air-conditioning equipment includes a hermetic refrigerant motor-compressor. According to the NEC, which article's Part IV should you reference for determining the conductor sizing requirements for this air-conditioning load on the feeder?
- A) Article 440, Part IV
- B) Article 210, Part IV
- C) Article 430, Part IV
- D) Article 424, Part IV
Tests your ability to locate the correct NEC article for specialized equipment — a skill that's all about knowing where to look fast.
Question 3 — Lien Laws (Medium)
You timely file a verified lien statement in the probate office, but it misstates the amount of the demand and misspells the name of the record owner. The property description is adequate to identify the property. What is the effect on your lien?
- A) The lien is void as filed
- B) Neither error defeats the lien
- C) The lien is lost as to the misnamed owner
- D) A corrected statement must be filed within 30 days
This one tests the Alabama lien statute directly — specifically, how defects in a lien filing affect your rights.
Question 4 — Estimating (Hard)
Which of the following is identified as a common estimating error that can cause inaccuracies in a bid?
- A) Using MasterFormat to organize the estimating checklist
- B) Obtaining more than three supplier quotes for material pricing
- C) Using non-standard abbreviations that may be interpreted as a different measurement or material
- D) Adding a contingency percentage to account for unanticipated conditions
Tests your understanding of the estimating process and the kinds of mistakes that cost contractors money before the job even starts.
Question 5 — General Electrical Knowledge (Medium)
In developing the direct-current resistance values published for bare conductors, bare copper is taken as 100 percent IACS conductivity. What IACS conductivity is used for aluminum conductors?
- A) 57 percent
- B) 61 percent
- C) 85 percent
- D) 45 percent
Tests fundamental electrical knowledge about conductor materials — the kind of detail covered in the American Electricians' Handbook.
What Types of Questions to Expect by Topic
Here's a straight breakdown of the skills our full question bank covers for every topic area on this exam.
Business Organization — Entity structure comparisons (sole proprietorship, LLC, corporation, partnership), liability exposure, taxation differences, and formation documents.
Risk Management — Property insurance types (builder's risk, inland marine), CGL coverage and exclusions, surety bond types, and employment-related insurance like workers' comp.
Project Management — Reading and interpreting schedules (bar charts, CPM), float time, supervisory roles, and budget/cost overrun management.
Estimating — Bid package components, ethics in bidding, quantity take-offs, direct cost calculations, and common errors in the estimating process.
Safety and Environmental — OSHA recordkeeping (Forms 300, 300A, 301), violation classifications, SDS requirements, and underground utility safety.
Labor Laws — Alabama workers' compensation requirements and exemptions, drug-free workplace programs, Fair Labor Standards Act overtime and recordkeeping rules.
Payroll and Employment Taxes — FICA calculations, federal income tax withholding, FUTA deposit schedules, Alabama unemployment compensation registration.
Financial Management — Reading balance sheets and income statements, financial ratio analysis, accrual vs. cash accounting, and contract accounting methods.
Contracts — Elements of a binding contract, lump-sum vs. cost-plus contract types, retainage provisions, material breach, and liquidated damages.
Lien Laws — Who qualifies to file in Alabama, filing deadlines by claimant type, lien priority relative to mortgages, and effects of defects in a lien filing.
Licensing Laws — AECB board composition, journeyman vs. contractor qualifications, exam administration and passing standards, license renewal and reinstatement.
General Electrical Knowledge — Ohm's Law calculations, series and parallel circuits, AC fundamentals, and core NEC definitions for services, feeders, and grounding.
Grounding and Bonding — Electrode selection (NEC 250.52), GEC sizing from Table 250.66, equipment grounding conductor identification, main bonding jumper rules, and bonding of piping and structural metal.
Conductors and Cables — Insulation type ratings (THHN, XHHW, RHW), ampacity tables and correction factors, AWG/kcmil sizing, and permitted uses for cable types including NM, MC, AC, MI, UF, and others.
Raceways and Boxes — Conduit fill calculations (NEC Chapter 9), conduit type selection (RMC, IMC, EMT, PVC, FMC), securing requirements, box fill calculations (Article 314), and pull box sizing.
Special Occupancies and Equipment — Hazardous location classification (Classes I–III, Divisions 1–2), health care essential electrical systems, patient care grounding, and pool/spa GFCI and bonding.
Electrical Power — Transformer overcurrent protection (NEC Article 450), cooling methods, emergency system transfer equipment (Article 700), and generator installation and disconnecting means (Article 445).
Motors — Branch-circuit conductor sizing for motors, overload protection selection, SCGF protective device ratings, controller types, and disconnecting means requirements.
Low Voltage — Class 1, 2, and 3 circuit classifications, power source limitations, cable substitution hierarchy (CL2, CL3, CMP, CMR), and communications system grounding.
Lighting — Luminaire installation by location (wet, damp, closet, shower zone), support methods, grounding requirements, recessed luminaire clearances, and lighting track restrictions.
Illuminated Signs — Dedicated branch circuit requirements, disconnecting means lockout, bonding of sign metal parts, and transformer ground-fault protection.
Fire Detection and Alarm Systems — PLFA cable types (FPL, FPLR, FPLP), NPLFA power source and overcurrent protection, circuit separation requirements, and cable applications by building location.
Safety Information — Electrical Safety Program requirements, lockout/tagout procedures, arc flash PPE selection, shock approach boundaries (limited and restricted), and PPE inspection.
Overcurrent Protection — Fuse classifications (Class H/J/K/L/R/T), circuit breaker types, standard ampere ratings from NEC Table 240.6(A), tap conductor location rules, and GFPE requirements for services and feeders.
Service, Feeders, and Branch Circuits — Conductor sizing and OCPD requirements, GFCI and AFCI protection by location and occupancy, receptacle placement in dwellings, service entrance clearances, and disconnecting means ratings.
Required Study Materials
This is an open-book exam, so your references do double duty — they're your study tools and your exam resources. Here's what you need.
NASCLA Contractors Guide to Business, Law and Project Management, 14th Edition — This is the primary reference for all 30 business and law questions. It covers contracts, financial management, payroll, labor laws, estimating, and more. Know it cold.
Alabama Supplement to the Contractors Guide — This 2014 supplement covers Alabama-specific content: licensing laws, lien statutes, workers' comp requirements, and state labor rules. You cannot skip this. Buy it directly through Prov.
National Electrical Code 2023 — The 2023 NEC is the backbone of 80 questions on this exam. Tab it thoroughly before exam day. Know Article 250, Chapter 3 wiring methods, Chapter 4 equipment articles, and the Chapter 9 tables.
American Electricians' Handbook, 17th Edition — This reference covers electrical fundamentals and is especially useful for the General Electrical Knowledge questions. It fills in the theory behind the code.
Tab all four books before the exam. Permanent tabs are allowed; sticky notes and handwritten tabs are not. Build a reliable index system so you can find sections in under 30 seconds.
Study Tips
Work the index, not just the code. On an open-book exam, the bottleneck is speed. Practice flipping to specific NEC articles and tables until it's automatic. If you can't find Article 310 ampacity tables in under 20 seconds, you need more book-navigation practice.
Rank your study time by exam weight. General Electrical Knowledge, Conductors and Cables, Service/Feeders/Branch Circuits, and Grounding and Bonding each carry 8–10 questions. Those four topics alone are worth 39 points. Master them before moving on to lower-weight areas.
Eliminate wrong answers first. On tough questions, cross out the choices you know are wrong before committing. Getting down to two options puts the odds in your favor, even when you're unsure of the exact answer.
Target your weak spots. After each practice session, note which topics you missed. Spend the next session drilling those areas, not the ones you already know. That's where your score gains come from.
Don't race. You have 5 hours. Use them. Other people finishing early doesn't mean anything — finishing first isn't a prize. Work at a steady pace and review your answers before you submit.
Get Started
You've got the roadmap. Now use it. Start with our free practice exam to benchmark where you are — it's 10 questions, no account required, and gives you a real feel for the question style. When you're ready to go deeper, upgrade to the full practice exam, which mirrors the real Alabama electrical contractor exam question for question, with detailed topic breakdowns so you know exactly where to focus.
The Alabama electrical contractor exam is tough, but it's passable with the right prep. Tab your books, work your weak spots, and give yourself the time to study the NEC properly. You've done harder things on a job site.