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According to NEC Article 100, what is the definition of a 'device'?

Any item that carries or controls electrical energy

A unit of an electrical system intended to carry or control but not utilize electrical current

Any piece of electrical equipment

A component that converts electrical energy to another form

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Free Journeyman Electrician Practice Test by State 2026: 3,700+ NEC Questions24 min read

2026 Statistics

Key Facts: OR Electrician Exam

70%

Passing Score

OR Building Codes Division

Exam Questions

PSI

4 hrs

Time Limit

PSI

$100

Exam Fee

PSI

The OR Journeyman Electrician exam requires 70% to pass across 80 multiple-choice questions in 4 hours. It is open-book, allowing a bound copy of the 2023 NEC. The exam fee is approximately $100. Oregon's Building Codes Division oversees all electrical licensing, and the state uniquely titles master electricians as 'Supervising Electricians.'

Sample OR Electrician Practice Questions

Try these sample questions to test your OR Electrician exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1According to NEC Article 100, what is the definition of a 'device'?

A.Any item that carries or controls electrical energy

B.A unit of an electrical system intended to carry or control but not utilize electrical current

C.Any piece of electrical equipment

D.A component that converts electrical energy to another form

Explanation: Per NEC Article 100, a device is a unit of an electrical system that is intended to carry or control but not utilize electrical energy. Examples include switches, receptacles, and dimmers. This is distinct from equipment that utilizes electricity.

2Oregon uses the title 'Supervising Electrician' instead of 'Master Electrician.' Which Oregon agency administers the electrician licensing program?

A.Oregon Contractors Board

B.Oregon Building Codes Division

C.Oregon Department of Consumer Affairs

D.Oregon Bureau of Labor and Industries

Explanation: The Oregon Building Codes Division (BCD) administers the electrician licensing program in Oregon. Oregon uses unique titles: Supervising Electrician (equivalent to Master Electrician) and Journeyman Electrician. The BCD also oversees all building code enforcement.

3Per NEC 210.8(A), GFCI protection is required for dwelling unit receptacles rated 125V through 250V in which location?

A.Living rooms

B.Bedrooms

C.Basements

D.Closets

Explanation: Per NEC 210.8(A)(5), GFCI protection is required for all 125-volt through 250-volt receptacles installed in unfinished basements of dwelling units. The 2023 NEC expanded GFCI requirements to include the broader voltage range.

4Per NEC Table 250.122, what is the minimum equipment grounding conductor for a 30-ampere circuit?

A.14 AWG copper

B.12 AWG copper

C.10 AWG copper

D.8 AWG copper

Explanation: Per NEC Table 250.122, a 30-ampere overcurrent device requires a minimum 10 AWG copper equipment grounding conductor. The EGC size is determined by the rating of the overcurrent device protecting the circuit.

5Per NEC Table 310.16, what is the ampacity of 8 AWG copper THWN at 75°C?

A.30 amperes

B.40 amperes

C.50 amperes

D.55 amperes

Explanation: Per NEC Table 310.16, an 8 AWG copper conductor at the 75°C column has an ampacity of 50 amperes. This is commonly used for large appliance circuits and small subpanels.

6Per NEC 314.16(B), what is the volume allowance for each 10 AWG conductor in a box fill calculation?

A.2.00 cubic inches

B.2.25 cubic inches

C.2.50 cubic inches

D.3.00 cubic inches

Explanation: Per NEC Table 314.16(B), each 10 AWG conductor requires a volume allowance of 2.50 cubic inches. Box fill calculations include all conductors, clamps (counted as one), device yokes (counted as two each), and EGCs (counted as one of the largest).

7Per NEC 430.52, what is the maximum size inverse-time circuit breaker for motor branch-circuit short-circuit and ground-fault protection?

A.150% of motor FLC

B.200% of motor FLC

C.250% of motor FLC

D.300% of motor FLC

Explanation: Per NEC Table 430.52, the maximum rating for an inverse-time circuit breaker used for motor short-circuit and ground-fault protection is 250% of the motor FLC. If 250% does not correspond to a standard size, the next higher standard size is permitted.

8What is the minimum clearance for service drop conductors over a sidewalk per NEC 230.24(B)?

A.10 feet

B.12 feet

C.15 feet

D.18 feet

Explanation: Per NEC 230.24(B)(2), service drop conductors must maintain a minimum clearance of 10 feet above finished grade at the electrical service entrance and over sidewalks or areas accessible to pedestrians only.

9Per NEC 220.12, what is the unit load for general lighting in an office building?

A.1.5 VA per square foot

B.2 VA per square foot

C.3 VA per square foot

D.3.5 VA per square foot

Explanation: Per NEC Table 220.12, the unit load for general lighting in office buildings is 3.5 VA per square foot. This is higher than the 3 VA/sq ft for dwelling units but reflects the higher lighting density in commercial office spaces.

10Per NEC 250.52(A)(5), what is the minimum length for a driven ground rod?

A.4 feet

B.6 feet

C.8 feet

D.10 feet

Explanation: Per NEC 250.52(A)(5), a rod-type grounding electrode must be at least 8 feet in length and driven to a depth of 8 feet. If rock is encountered, the rod may be driven at an oblique angle not exceeding 45 degrees.

About the OR Electrician Exam

The Oregon Journeyman Electrician exam is administered by PSI for the Oregon Building Codes Division. Based on the 2023 NEC, it covers electrical theory, code compliance, grounding and bonding, wiring methods, load calculations, motors, transformers, and special occupancies. Oregon uses 'Supervising Electrician' as the title for master-level licensure.

Questions

80 scored questions

Time Limit

4 hours

Passing Score

70%

Exam Fee

$100 (OR Building Codes Division / PSI)

OR Electrician Exam Content Outline

20%

NEC General & Theory

Definitions, electrical theory, NEC navigation, working space requirements, and installation fundamentals

20%

Branch Circuits & Overcurrent Protection

Circuit sizing, receptacle spacing, GFCI/AFCI requirements, overcurrent protection, and lighting outlets

15%

Grounding & Bonding

Grounding electrode systems, equipment grounding, bonding requirements, and ground-fault protection

20%

Wiring Methods & Materials

Conductor ampacity, conduit fill, cable assemblies, box fill calculations, and raceway types

25%

Services, Feeders, Motors & Special Occupancies

Service entrance requirements, load calculations, motor circuits, transformers, hazardous locations, and healthcare facilities

How to Pass the OR Electrician Exam

What You Need to Know

Passing score: 70%
Exam length: 80 questions
Time limit: 4 hours
Exam fee: $100

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

OR Electrician Study Tips from Top Performers

1Master NEC Article 250 (Grounding and Bonding) — heavily tested on every state exam

2Practice dwelling unit load calculations using NEC Article 220 until they become second nature

3Learn to navigate the NEC index efficiently — 4 hours seems generous but time management is still critical

4Focus on conductor ampacity from Table 310.16 and temperature correction/adjustment factors

5Study Oregon's wet climate-related requirements: wet location receptacles, outdoor GFCI, and burial depths

Frequently Asked Questions

What NEC edition does Oregon use for the electrician exam?

Oregon has adopted the 2023 NEC through the Building Codes Division. The PSI-administered exam is open-book, allowing a bound copy of the 2023 NEC. No loose pages, handwritten notes, or removable tabs are permitted.

What is the difference between Journeyman and Supervising Electrician in Oregon?

Oregon uses unique titles. A Journeyman Electrician performs electrical work under supervision. A Supervising Electrician (equivalent to Master Electrician in most states) can supervise electrical work and pull permits. Additional experience is required for the Supervising Electrician license.

How hard is the Oregon electrician exam?

The exam is challenging with an estimated 55% first-time pass rate. It has 80 questions in 4 hours. Strong NEC navigation skills, load calculation practice, and knowledge of grounding/bonding are critical for success.

How much does the Oregon electrician exam cost?

The exam fee is approximately $100 through PSI. Additional costs include the NEC codebook ($100+) and study materials. Apply through the Oregon Building Codes Division before scheduling.