What's on the Arizona R-11 Residential Electrical Exam? The PSI Outline
PSI's outline for the Arizona R-11 residential electrical trade exam: 110 questions across 14 areas on the 2017 NEC, led by services, grounding and raceways, and how to study for it.
What's on the Arizona R-11 Residential Electrical Exam?
The Arizona R-11 trade exam has 110 scored questions, and you need 70% to pass. It is open book on the 2017 NEC, with NFPA 72 (2016) and OSHA's construction standards also on the list. The counts below are from PSI's R-11 outline, last revised June 8, 2023.
The outline
| Content area | R-11 | C-11, for comparison |
|---|---|---|
| Service, Feeders and Branch Circuits | 18 | 13 |
| Grounding and Bonding | 16 | 13 |
| Raceways and Boxes | 15 | 10 |
| Conductors and Cables | 12 | 12 |
| Photovoltaics | 10 | 10 |
| Overcurrent Protection | 7 | 8 |
| General Electrical Knowledge | 6 | 5 |
| Lighting | 6 | 3 |
| Fire Detection and Alarm Systems | 5 | 5 |
| Safety | 5 | 5 |
| Special Occupancies and Equipment | 3 | 13 |
| Motors | 3 | 5 |
| Electrical Devices | 2 | 2 |
| Low Voltage | 2 | 5 |
| Total | 110 | 110 |
The residential exam shifts weight from special occupancies and motors to the core of dwelling work: services and branch circuits, grounding, and raceways and boxes add up to 49 of the 110 questions.
How to study
- Master Articles 210, 220 and 230. Branch-circuit requirements, dwelling load calculations and service rules are the largest area.
- Know Article 250 cold. Grounding electrodes, bonding and conductor sizing are 16 questions.
- Learn the 2017 numbering. Newer material uses the 2020 or 2023 NEC, which moved several rules.
- Prepare for photovoltaics. Ten questions on Article 690 is more than most residential exams ask.
Practice for the exam
Our Arizona R-11 practice test draws from all 14 areas in the same proportions, and every explanation cites the 2017 NEC section. For test-day logistics, see the R-11 exam day.
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