A handful of NEC articles make up the majority of the exam. Each topic hub pulls together that area's code rules, the calculators it relies on, the glossary terms behind it, and the questions that test it.
Ranked by how heavily the journeyman exam leans on each.
Surveys of the journeyman exam and the electricians who sit it keep pointing at the same five areas — grounding and bonding (Article 250), motor calculations (430), load calculations (220), box fill (314.16), and conductor ampacity (310). Together with voltage drop, conduit fill, and services, they account for the bulk of the questions and most of the retakes.
Each topic hub is built to take you from the rule to the calculation to a timed question, so you're not just reading the code — you're practicing finding and applying it under the clock, which is what the exam actually measures.
Loomi turns these calcs into 9,000+ timed, NEC-referenced exam questions, with spaced repetition that hammers your weak spots. Reserve your founders' seat before launch.
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