Journeyman Electrician Practice Test
Follows one published outline, the PSI bulletin for Oklahoma's Unlimited Electrical Journeyman exam: 100 questions in 240 minutes on the 2023 NEC.
- Open book on the NEC
- A set of calculations
- Score by outline area
- 240-minute clock
- Full mock: 100 questions, 240-minute clock, split by the published outline
- An electrical calculations set, every calculation worked line by line
- A set for each of the 13 outline areas
- Every answer names its NEC 2023 section, or its OSHA 1926 section for safety
- NEC 2023 or 29 CFR 1926 sections to reread for each question you miss
The tests
The free sample has one code lookup, one calculation and one theory question. It runs in the same test player as the full mock: a question palette, mark for review, a clock and a summary before you submit. Practise with your NEC 2023 open beside you, as Oklahoma's open-book exam allows; check your own board's rules.
Double-checked questions Real exam pattern Free sample · 3 questions
Full tests 16 tests
One payment unlocks all 15 tests
- Full mock: 100 questions, 240-minute clock, split by the published outline
- An electrical calculations set, every calculation worked line by line
- A set for each of the 13 outline areas
- Every answer names its NEC 2023 section, or its OSHA 1926 section for safety
- NEC 2023 or 29 CFR 1926 sections to reread for each question you miss
₹1,499·no subscription
Journeyman Electrician Practice Test · Free sample
Free sampleInstant score, answer review and weak-topic diagnosis
Journeyman Electrician Practice Test · Full mock (100 questions, 240 min)
Instant score, answer review and weak-topic diagnosis
Journeyman Electrician Practice Test · Electrical calculations
Instant score, answer review and weak-topic diagnosis
Journeyman Electrician Practice Test · Area 1: General knowledge
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Journeyman Electrician Practice Test · Area 2: General electrical knowledge
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Journeyman Electrician Practice Test · Area 3: Electrical installation requirements
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Journeyman Electrician Practice Test · Area 4: Services, feeders and branch circuits
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Journeyman Electrician Practice Test · Area 5: Overcurrent protection
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Journeyman Electrician Practice Test · Area 6: Grounding and bonding
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Journeyman Electrician Practice Test · Area 7: Conductors and cables
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Journeyman Electrician Practice Test · Area 8: Raceways and boxes
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Journeyman Electrician Practice Test · Area 9: Special occupancies and equipment
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Journeyman Electrician Practice Test · Area 10: Low voltage, alarms, signaling and communications
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Journeyman Electrician Practice Test · Area 11: Lighting and signs
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Journeyman Electrician Practice Test · Area 12: Safety (29 CFR 1926)
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Journeyman Electrician Practice Test · Area 13: Motors and transformers
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What is inside
| Outline area | In the mock | What our questions practise |
|---|---|---|
| 1. General knowledge | 4 | The authority having jurisdiction, approval and listing, boring and notching framing, firestopping, estimating material. |
| 2. General electrical knowledge | 10 | Ohm's law, series and parallel circuits, power and heat loss, AC and three-phase theory, cost of power, meters, the NEC's layout and definitions, temporary wiring, cranes, elevators. |
| 3. Electrical installation requirements | 10 | Working space, terminal temperature ratings, interrupting ratings, fault-current and arc-flash marking, conductor identification, installations over 1000 V. |
| 4. Services, feeders and branch circuits | 10 | Service clearances and disconnects, feeder and branch-circuit sizing, dwelling load calculations, receptacle rules, GFCI and AFCI, voltage drop, air-conditioning and snow-melting circuits. |
| 5. Overcurrent protection | 9 | Small-conductor limits, next size up, standard ratings, tap rules, location of devices, ground-fault protection of equipment. |
| 6. Grounding and bonding | 10 | Grounding electrode conductors, electrodes, equipment grounding conductors, bonding jumpers, separately derived systems. |
| 7. Conductors and cables | 8 | Burial depths, ampacity correction and adjustment, parallel conductors, Types NM, MC, AC, USE, UF and MV. |
| 8. Raceways and boxes | 7 | Conduit fill, box fill, pull boxes, raceway support, PVC expansion, wireways, cable tray, fan and luminaire boxes. |
| 9. Special occupancies and equipment | 10 | Hazardous locations, garages and fuel dispensing, health care, assembly, mobile homes, floating buildings, pools and hot tubs, EV charging. |
| 10. Low voltage, alarms, signaling and communications | 2 | Class 2 separation, communications bonding, fire alarm circuits, emergency systems, PV circuits. |
| 11. Lighting and signs | 10 | Closet and bathtub-zone luminaires, recessed luminaires, luminaire support, track lighting, sign outlets and disconnects, lighting loads. |
| 12. Safety (29 CFR 1926) | 4 | Ladders, fall protection, trenches and excavations, scaffolds, GFCIs on site, lighting levels, signs, lockout tags, PPE, first aid. |
| 13. Motors and transformers | 6 | Motor full-load currents, conductor and short-circuit sizing, overloads, disconnects, transformer currents and protection, generators. |
| Total | 100 | A full mock of 100 in 240 minutes, 34 questions in the calculations set, a set for each area and the free sample: 246 questions in all |
The number of mock questions in each area is the number the Oklahoma bulletin lists for that area. Each area set and the calculations set run at the mock's pace, 2.4 minutes a question.
Every answer names its code section, or its OSHA section for safety. Each explanation names the NEC 2023 article and section (or table) it rests on, such as 110.26(A)(1) for working space, Table 250.66 for grounding electrode conductors or 314.16 for box fill, or the 29 CFR 1926 section for a safety question, so you practise finding it in your own code book. We cite the Code; we never reprint it.
Every calculation is worked line by line: the formula, the table value and each step, from voltage drop and dwelling loads to conduit fill, motor branch circuits and transformer currents.
Studying for the plumbing trade too? See the journeyman plumber practice test (IPC 2024).
How it is scored
- One mark per correct answer. The Oklahoma bulletin sets the pass mark at 70% correct, so the results page shows where you stand against 70% on our questions.
- Your score in each outline area, with your time per question, so you can see which area costs you the most marks.
- Code sections to reread: the NEC 2023 article and section (or the 29 CFR 1926 section) behind every question you missed, grouped by outline area, with a link to NFPA's free read-only access to the 2023 edition or to the eCFR.
- The reason behind every answer, and your progress across retakes.
Your percentage here is your score on our questions; it does not predict an exam result.
The outline this follows, from the official bulletin
- Oklahoma's Unlimited Electrical Journeyman exam is 100 scored questions in 240 minutes, and 70% correct passes. Up to ten unscored experimental questions may be added, and the time for them does not count against you (PSI bulletin, effective 11 September 2026).
- It is open book. The references are NFPA 70, National Electrical Code, 2023 edition, as revised and adopted by the Oklahoma Uniform Building Code Commission; 29 CFR Part 1926 (OSHA construction) with the latest available amendments, or PSI's selections from it; and Ugly's Electrical References, any edition. NEC Handbooks and spiral-bound copies of the Code are not allowed, books may be highlighted and tabbed with permanent tabs only, and nothing may be written in them. A silent, battery-operated, non-printing, non-programmable calculator without an alphabet keyboard is allowed.
- The fee is $92 for each examination portion. Your score appears on screen at the end; a candidate who does not pass gets a diagnostic report of strengths and weaknesses. After a failed electrical exam you wait 30 days before retesting.
- The Construction Industries Board decides who may sit the exam (testing and exam information). The NEC itself can be read free, read-only, through NFPA's free access.
Read on 27 October 2026. Your own licensing board is the authority on your exam: check its bulletin before you book.
Before you buy
Are these real exam questions?
No. Every question is our own, written from NFPA 70 (2023 edition) and 29 CFR Part 1926 and arranged by the outline in the Oklahoma PSI bulletin. None comes from a PSI or state exam.
Will this match my state's exam?
It gives NEC 2023 practice that follows the Oklahoma PSI outline, so it suits candidates whose state exam uses the 2023 NEC; check your board's bulletin for differences in content, length and rules. States adopt different NEC editions and set their own length, time and outline, so check your board's candidate bulletin. Texas has used the 2026 NEC since 1 September 2026, so this set does not match the Texas exam.
Do I need my own code book?
It helps. Oklahoma's exam is open book (check whether yours is), so the best practice is to look each answer up in your own NEC 2023 as you go. Every explanation names the section to find, and NFPA offers free read-only access to the 2023 edition online.
Is this made or recommended by PSI, NFPA or a state board?
No. It is independent practice by ProSyllabus. National Electrical Code and NEC are registered trademarks of the National Fire Protection Association.
Will this make me pass?
We do not claim that it will. It gives you timed practice on a published outline, your score by area on our questions and the code section behind every answer, so you can see where to study.
What do I get?
A full mock of 100 questions with a 240-minute clock, a set of 34 electrical calculations and a set for each outline area, 246 questions in all with the free sample, in the full test player. After each test: your score by area, the NEC 2023 or 29 CFR 1926 sections to reread, your time per question and the explanation of every answer. Retake any test as often as you like.
How do I pay and get access?
One payment by card (or PayPal where offered), handled by our payment provider. In the United States the price is charged in US dollars; in Canada, the United Kingdom and the euro area in your own currency; elsewhere in your own currency where we support it, otherwise in Indian rupees with the local figure shown as an estimate. Access opens on this device straight after payment. Sign in afterwards to keep it on your account. Purchase policy.
Independent practice material by ProSyllabus. Not made or endorsed by PSI, any state licensing board or the National Fire Protection Association. Facts about the exam come from the official bulletin and board pages, read on 27 October 2026.
Disclaimer
Independent practice by ProSyllabus: not made or endorsed by PSI, any state licensing board or the National Fire Protection Association. Every question is our own; none comes from an exam.