One exam, 80 questions
You need 70% overall. Calculations sit inside the outline areas rather than in a separate portion, and our full-length practice exam draws from each area in the same proportions.
Residential Journeyman Electrician exam
80 scored · 210 min- General Knowledge4
- General Electrical Knowledge12
- Electrical Installation Requirements10
- Services, Feeders, and Branch Circuits10
- Overcurrent Protection8
- Grounding and Bonding8
- Conductors and Cables8
- Raceways and Boxes6
- Special Occupancies and Equipment4
- Low Voltage, Alarms, Signaling, and Communications2
- Lighting and Signs4
- Safety4
On the 2023 NEC since December 14, 2024
Study material written for the previous edition teaches these wrong. Every question here is grounded in the 2023 NEC.
| Topic | Previous edition | 2023 NEC |
|---|---|---|
| Non-dwelling general lighting unit loads220.42 | Table 220.12 | Table 220.42(A) |
| Lighting load demand factors220.45 | Table 220.42 | Table 220.45 |
| Non-dwelling receptacle demand factors220.47 | Table 220.44 | Table 220.47 |
| EV charging load in a load calculation220.57 | No rule | 7,200 VA or the nameplate, whichever is larger |
| Class 1 remote-control and signaling circuitsArticles 722, 724 | Article 725 | Article 724 (general rules in Article 722) |
What's Included
Every plan gets the same full-access study library.
Frequently asked questions
How is the Oklahoma Residential Journeyman Electrician exam structured?+
One PSI exam of 80 questions in 3½ hours, open book, and you need 70% — 56 correct. General electrical knowledge is the largest area at 12 questions. There is no motors and transformers area, and special occupancies covers only mobile homes, RVs and pools.
Which code edition is the exam on?+
The 2023 NEC as adopted by the Oklahoma Uniform Building Code Commission (OUBCC). Oklahoma exam questions moved from the 2020 to the 2023 NEC on December 14, 2024. Where a state code conflicts with a national one, the state code wins, and two Oklahoma amendments change answers: listed HVAC equipment stays exempt from the outdoor-outlet GFCI rule in 210.8(F), with no expiration date, and an added 422.16(B)(5) lets a gas-fired central furnace in a dwelling be cord-and-plug connected with a cord no longer than 9 feet.
Is it open book? What can I bring?+
Yes, with three books: the 2023 NEC (no NEC Handbook and no spiral-bound copies), 29 CFR 1926 (the OSHA construction standards, or PSI's selections from them) and Ugly's Electrical References, any edition. Highlighting, underlining and permanent tabs are allowed; writing in the books and Post-its are not. Bring a silent, non-programmable calculator.
Is there an Oklahoma law section?+
No. Oklahoma law is tested only on the separate Electrical Business and Law exam that contractors take. The Safety area (4 questions) comes from the OSHA construction standards in 29 CFR 1926.
What does it cost, and what if I fail?+
The PSI exam fee is $92 per attempt, and you need 70%. If you fail, you wait 30 days before each retake; no attempt limit is stated. Up to 10 unscored experimental questions may be added, and their time does not count against you.
How often do I renew?+
Every year, by the end of your birth month: $75, or $100 late. You need 12 hours of continuing education every 3 years, 6 of them on the codes OUBCC adopts; you are exempt for the first 3 years after passing your exam.
Is the residential code (IRC) on the exam?+
No. Oklahoma residential construction follows the electrical chapters of the IRC, but the exam lists only the 2023 NEC, OSHA 29 CFR 1926 and Ugly’s. Our questions answer strictly from the NEC as Oklahoma adopts it.
What do I need before I can sit the exam?+
You must be 18 or older with 4,000 hours (2 years) as an apprentice under the direct supervision of an unlimited or residential journeyman or contractor. No more than 1,000 classroom hours of electrical education can count. CIB charges $25 to process the application and $50 for the license.
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