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Key Facts: OK Electrician Exam
70%
Passing Score
PSI Candidate Information Bulletin / HB 3215
100
Scored Items
PSI Candidate Information Bulletin
240 min
Time Limit
PSI Candidate Information Bulletin
$92
Fee Per Exam Portion
PSI Candidate Information Bulletin
The Oklahoma Unlimited Electrical Journeyman exam is 100 scored items in 240 minutes and requires 70% correct to pass. It is open book with the 2023 NEC (bound copies only), 29 CFR Part 1926, and Ugly's Electrical References. The PSI fee is $92 per examination portion after CIB approval.
Sample OK Electrician Practice Questions
Try these sample questions to review concepts for the OK Electrician exam. Each question includes a detailed explanation. Start the interactive quiz above for the full 344+ question experience with AI tutoring.
1According to the NEC Article 100, what is the definition of 'accessible' as applied to equipment?
2In Oklahoma, the Construction Industries Board (CIB) oversees electrician licensing. What is the NEC edition currently adopted by Oklahoma?
3Per NEC 210.8(A), GFCI protection is required in dwelling unit bathrooms for receptacles rated at what voltage range?
4What is the minimum size equipment grounding conductor required for a 40-ampere circuit per NEC Table 250.122?
5Per NEC 250.66, what is the minimum size grounding electrode conductor for a service with 1/0 AWG copper service-entrance conductors?
6Per NEC Table 310.16, what is the ampacity of a 2 AWG copper conductor with THWN insulation at 75°C?
7According to NEC 314.16(B), what is the volume allowance for each 14 AWG conductor in a box fill calculation?
8Per NEC 430.52, what is the maximum size non-time-delay fuse permitted for motor branch-circuit short-circuit and ground-fault protection for a standard AC motor?
9What is the minimum height above grade for service drop conductors that pass over a residential driveway per NEC 230.24(B)?
10Oklahoma's climate includes severe weather. Per NEC 225.18, what is the minimum clearance for overhead branch-circuit conductors over a public street?
About the OK Electrician Exam
The Oklahoma Unlimited Electrical Journeyman examination is administered by PSI Services LLC for the Oklahoma Construction Industries Board (CIB). It is a 100-item, 240-minute open-book examination built on the 2023 NEC as adopted by the Oklahoma Uniform Building Code Commission, 29 CFR Part 1926, and general trade knowledge, spanning 13 subject areas from electrical theory and installation requirements through grounding, conductors, raceways, special occupancies, lighting and signs, safety, and motors and transformers.
Exam sponsor: OK Construction Industries Board (CIB) / PSI. The requirements and fees below concern the certification or admission exam, separate from our free practice resources.
Questions
100 questions
Time Limit
4 hours
Passing Score
70%
Reported exam pass rate: Not published. The Construction Industries Board and PSI do not publish pass rates for the Oklahoma electrical examinations. Exam sponsor website
Fees, eligibility, and exam policies can change. Confirm them with the exam sponsor before applying or paying.
Our practice resources: topics covered
We aim to reflect publicly available exam outlines and topic information in our study resources. Coverage, format, and difficulty may differ from the actual exam, and we cannot guarantee that every detail is accurate or current. Confirm exam requirements, fees, and policies with the official exam sponsor.
General Knowledge
Permits and inspections, preservation of structural integrity, and needs analysis and estimating
General Electrical Knowledge
Voltage/current/resistance in series, parallel and combination circuits, power used and lost, AC and three-phase theory, cost of power, troubleshooting and test systems, NEC codebook use and definitions, temporary wiring, cranes and hoists, elevators and escalators
Electrical Installation Requirements
Approved methods of installing electrical equipment, including equipment operating in excess of 600 volts
Services, Feeders, and Branch Circuits
Services, voltage drop, services over 600 volts, feeders, outside branch circuits and feeders, branch circuits, space-heating/snow-melting/pipe-heating circuits, and air-conditioning and refrigeration equipment
Overcurrent Protection
NEC overcurrent protection requirements, including standard device ratings, conductor protection, and tap rules
Grounding and Bonding
General grounding requirements and required sizes of grounding electrode conductors and equipment grounding conductors
Conductors and Cables
Underground conductors, vertical installations, conductor selection, and cable types AC, MC, NM/NMC/NMS, SE/USE, UF, MI, FC/FCC, and MV
Raceways and Boxes
General raceway and box requirements, pull boxes, conduit fittings, RMC/EMT/IMC/RNC/FMC/LFMC/FMT/HDPE/NUCC/LFNC, conduit fill, box volume and fill, wireways, gutters, busways, surface and underfloor raceways, and cable trays
Special Occupancies and Equipment (Including Swimming Pools)
Class I, II and III hazardous locations, commercial garages and fuel dispensing, bulk storage and spray areas, health care facilities and places of assembly, mobile homes and RV parks, floating buildings, and swimming pools, fountains and hot tubs
Low Voltage, Alarms, Signaling Systems, and Communications
Remote-control and signaling circuits, communications circuits, equipment operating at 50 volts or less, fiber optics, photovoltaics, fire alarms, and emergency system circuit wiring
Lighting and Signs
Luminaire installation, grounding and wiring, fluorescent and recessed fixtures, fixture construction requirements, lighting systems operating at less than 30 volts, and neon lighting and electric signs
Safety
Job site sanitation, personal protective equipment, excavation safety, emergency action plans, safety training, ventilation, first aid, signs/signals/barricades, tools, ladders, illumination, scaffolds, toxic materials, cleanup, SDS, material handling, and fall protection
Motors and Transformers
Motors used in dwellings, motor branch circuits in industrial and commercial locations, feeder transformers, and use of transformers
Preparing for the OK Electrician Exam
What You Need to Know
- Passing score: 70%
- Exam length: 100 questions
- Time limit: 4 hours
- Exam / certification fees: $92 Official sources
Using Our Practice Resources
- Work through all 344 available questions
- Review every answer and explanation
- Track weak areas and revisit them
- Use our AI tutor for tough concepts
OK Electrician: Suggested Study Strategy
Frequently Asked Questions
What NEC edition does Oklahoma use for the electrician exam?
Oklahoma tests the 2023 NEC as adopted by the Oklahoma Uniform Building Code Commission effective September 14, 2024. The exam is open book, but NEC Handbooks and spiral-bound NEC copies are barred from the test center, and no loose pages, handwritten notes, or removable tabs are permitted.
How long is the Oklahoma electrician exam?
The Unlimited Electrical Journeyman examination allows 240 minutes (4 hours) for 100 scored multiple-choice items, about 2.4 minutes per item. Efficient NEC navigation is essential because load, box fill, and conduit fill items take far longer than the average.
How hard is the Oklahoma electrician exam?
Neither the Construction Industries Board nor PSI publishes a pass rate for the Oklahoma electrical examinations, so any percentage you see quoted is an estimate. The measurable difficulty is the blueprint: 100 items across 13 subject areas in 240 minutes at a 70% cut score, weighted toward installation requirements, grounding, services/feeders/branch circuits, special occupancies, and lighting and signs.
What does the Oklahoma electrician exam cost?
PSI charges $92 per examination portion, first attempt or retake, and the fee is not refundable or transferable. Budget separately for a bound 2023 NEC. You must apply through the CIB and be approved before scheduling with PSI.