What are the most important NEC articles for the journeyman exam?
Learn the neighborhoods that carry the most questions: 110 general rules, 210 branch circuits, 215 feeders, 220 load calculations, 230 services, 240 overcurrent, 250 grounding and bonding, 310 conductors, 314 boxes, 430 motors, and the Chapter 9 tables for fill and wire data. Land in the right article fast and the answer is usually right there.
Last reviewed June 2026 · Answered by JourneymanIQ staff
Tab the high-yield articles
110, 210, 215, 220, 230, 240, 250, 310, 314, and 430 cover a large share of the exam. The Chapter 9 tables handle fill and conductor data.
Know what each one answers
Grounding questions go to 250, conductor sizing to 310, boxes to 314, motors to 430, load calculations to 220. Hearing the topic should point you to the article.
Speed beats memorization
You do not memorize the rules, you memorize where they live. Landing in the right neighborhood fast is the whole open-book skill.
Tab 110, 210, 215, 220, 230, 240, 250, 310, 314, 430, and Chapter 9. Know which one answers what.
Practice questions and explanations on JourneymanIQ are original. We paraphrase the NEC and cite article numbers, and we do not reproduce NEC text or real exam questions.
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