NEC Practice Exam — Pass First Time

What's on the journeyman and master NEC exams

The NEC exam — whether you're sitting it for a journeyman ticket, a master electrician licence, or a state contractor's exam — is essentially a closed-book or limited-reference test on the National Electrical Code (NFPA 70). Most jurisdictions use the 2023 cycle, with a handful still on 2020. Questions split roughly into three buckets: code lookups (definitions, article requirements), calculations (conductor ampacity, service load, box fill, voltage drop, motor sizing), and theory (Ohm's law, transformer ratios, single-line interpretation).

The brutal part isn't the difficulty of any single question — it's the time pressure. Most exams give you about 3 minutes per question, and code lookups eat clock time fast. Voltly's job is to drill you until the common articles are muscle memory.

Voltly's NEC question bank

• 2023 NEC with 2020 cycle annotations where state jurisdictions lag.
• Article 100–800 coverage — definitions, branch circuits, services, grounding, wiring methods, special occupancies, signaling.
• Calculation drills — service load (220.42 / 220.82), conductor sizing, box fill, voltage drop, motor branch circuits, transformer calcs.
• Mock exams — 80-question, 4-hour journeyman simulations and 100-question master simulations.
• Weak-point drilling — every miss tags the article so the adaptive engine re-serves it until you crush it.
• Plain-English explanations — every answer cites the exact NEC article and explains why the wrong options are wrong.

Why electricians pass faster with Voltly

Most NEC prep books give you 1,500 questions you do once. Voltly serves you the same question types thousands of times in different framings, until the article numbers are instinct. Combine that with daily streaks and a leaderboard with other journeymen prepping for masters, and 20 minutes a day for 6 weeks puts you in pass territory.