Free practice questions for Arizona's R-11 Residential Electrical trade exam — 110 questions on the NEC 2017 as adopted for dwellings — with a written explanation on every answer, in English, Spanish, and Russian.
8 questions, about 4 minutes. No account needed — pick an answer to see whether it's right and read the explanation, the same explanations you get on every question in the full course.
Practice across the full question bank.
Understand why the correct answer works — not just which letter is right.
Spend more time on the questions you miss.
Practice under exam-style time pressure before exam day.
Every question tells you why the correct answer is correct and defines the terms it uses — so you learn the rule, not just the answer.
Questions are written from scratch against the official codes and agency publications for this exam — never copied from the real exam.
Every question and explanation is fully translated, with the English exam term kept alongside — not a shallow machine translation.
LICENA is a practice tool, not a school. We don't promise a pass — we help you understand the material and walk in prepared.
The full Arizona R-11 course is 500 questions across 5 blocks written to the exam's own references — the NEC 2017 as the 2018 IRC Part VIII adopts it for dwellings, NFPA 72 and 29 CFR 1926 Subpart K — every answer cited to its section.
Exam structure, topics, study areas and official resources.
The R-11 Residential Electrical exam is PSI's trade test for Arizona's residential electrical license: 110 questions, 240 minutes, 70 percent to pass, open book. Its reference list is led by the 2017 National Electrical Code, with NFPA 72 and OSHA's 29 CFR 1926 alongside. Try the free sample above: no sign-up, with a written explanation on every question.
PSI's R-11 content outline (rev. 6/8/23) sets the format: 110 questions, 240 minutes, 70 percent, open book. The book that matters is the 2017 National Electrical Code (NFPA 70) — the outline's listed edition — joined by NFPA 72 for fire-alarm questions and 29 CFR 1926 for jobsite safety. Code questions test the LISTED editions, so study the 2017 NEC even though newer editions exist. A useful doubling: the 2018 IRC's Part VIII (chapters 34 through 43) is the dwelling adoption of NEC 2017 and prints the NEC section numbers in brackets — residential rules organized the way a house is actually wired.
Residential electrical exams live on a familiar spine: receptacle distribution (the 6-foot wall rule and the 24-inch countertop rule), the two 20-ampere small-appliance circuits, GFCI locations by name — bathrooms, garages, outdoors, kitchen counters — and AFCI protection across the living areas, tamper-resistant receptacles with their short exception list, working clearances at panelboards (36 inches deep, 30 wide, 6.5 feet high), conductor sizing and overcurrent basics, and grounding and bonding. Expect the classic traps: the GFCI/AFCI split, spacing consequences versus rule wording, and width-versus-depth dimensions at equipment.
R-11 covers electrical work on residential structures; commercial work requires C-11 or the dual CR-11. The license's scope is why the exam stays inside dwelling wiring — services, branch circuits, devices, appliances, low-voltage systems — rather than commercial occupancies, and why the IRC's electrical part is such a clean study map. Every Arizona license also requires the SRE, AZ ROC's separate open-book law exam; the trade exam tests none of that statute material, so budget for both preparations.
The full LICENA course is 500 questions in five blocks, every answer explained with its NEC or IRC citation and the bracketed section to find it in either book. At 30 questions a day that is under three weeks: a first pass to find what you do not know, a second on weak blocks, then the timed final mirroring the real 110-question, 240-minute format. Open book rewards navigation — knowing that receptacle spacing is 210.52, GFCI is 210.8, working space is 110.26 — and drilling builds that reflex. Pair the bank with the Arizona SRE practice (also required) and our guide to Arizona's contractor exams.
Try the full bank free for 3 days — no card needed. Then $9.99 for your first month and $19.99/month after that if you decide to continue, cancel anytime — far less than the hundreds a trade school costs, and you study on your phone, in your language, whenever you have a few minutes.
Continue Arizona R-11 practice The free sample above stays free. Creating an account is free — no card needed.LICENA gives you practice questions to study with. We are not an accredited school and we do not guarantee that you will pass any exam.
LICENA provides online practice only. Registration, testing and licensing are handled by the Arizona Registrar of Contractors (AZ ROC) and PSI — not by LICENA. LICENA is not affiliated with AZ ROC or PSI.