Free Practice Test
Oregon General Supervising Electrician
Try 10 questions on the 2026 Oregon Electrical Specialty Code: calculations, services and feeders, wiring methods, equipment, grounding and Oregon’s own amendments and licensing rules. Every question cites the 2026 NEC section, or the Oregon rule where Oregon changes it, and every calculation is worked out. You get a score for each area and an explanation for every answer.
What you’ll get
Your Score
See your percentage as soon as you enter your name and email.
Topic Breakdown
Find out which topics you're strong in and where you need work.
Codebook Explanations
Unlock detailed explanations with exact code references.
Free With Your Email
Enter your name and email after the test to see your score and the questions you missed.
The Oregon General Supervising exam is 64 questions in 4 hours, open book, in two sections: 52 code questions and 12 calculations. You need 75%, and Oregon publishes no outline, so practice the calculations and the Oregon amendments as well as the code look-ups.
Related reading

Oregon General Supervising Electrician Exam Day: What to Expect
Test-day logistics for the Oregon General Supervising exam: the Letter of Authorization, proctor sites, approved books and calculator, pacing 64 questions in 4 hours, the calculation section, results by mail and retakes.

What's on the Oregon General Supervising Electrician Exam?
The Oregon General Supervising exam has 64 questions in two sections, 52 code and 12 calculations, and no published outline. What to expect, how Oregon's amendments change the 2026 NEC, and how to prepare for the calculations.

Oregon General Supervising Electrician License: Requirements and How to Apply
What Oregon requires for a General Supervising (S) electrician license: four years as a journeyman or the equivalent, the BCD application, the 64-question exam, the signing supervisor's duties, reciprocity and continuing education.