⚡ Electrical · IBEW Local
Electrical Code Practice & NEC Exam Prep for Apprentices
Practice the NEC the way the journeyman exam asks it — conductor sizing, conduit fill, box fill, and motor calcs — in real panel and branch-circuit puzzles. Free for IBEW apprentices.
What you'll practice
- ✓Conductor sizing and voltage drop
- ✓Conduit fill and box fill (NEC 314.16)
- ✓Motor FLA, conductor, and overcurrent sizing (NEC 430)
- ✓Working clearances and grounding/bonding
Code standards covered
The Code, asked the way the exam asks it
Journeyman electrician exams don't ask you to recite the NEC — they ask you to apply it under time pressure. CraftIQ is built the same way. Conductor sizing puzzles make you account for ampacity, termination limits, and voltage drop together, the way a real feeder question does. Conduit-fill and box-fill puzzles force the counting discipline that costs points when it's sloppy. Code-or-no-code puzzles show you an installation and ask the only question that matters on the job: does this pass? Every answer cites the actual NEC article it turns on, and every miss shows you the correct reasoning — so you stop losing the same point twice. Difficulty escalates the way apprenticeship years do, from single branch circuits to feeders serving mixed loads, so a third-year is not stuck re-treading first-year material.
Motors, panels, and the calcs that fail people
Ask any inspector where installations go wrong and motor circuits come up fast. NEC Article 430 runs on table values rather than nameplate current, keeps separate rules for conductors and overcurrent protection, and punishes anyone who guesses. CraftIQ drills those distinctions in dedicated sizing puzzles, then rounds out the picture with grounding and bonding scenarios, working-clearance judgment calls, and panel puzzles built from situations electricians actually walk into. The electrical pool has been code-audited against the current published NEC — when an edition changes something, the content gets corrected rather than left to drift. That audit discipline is the difference between practice that helps and practice that quietly teaches you the wrong edition.
For IBEW apprentices — and the JATCs that train them
CraftIQ is free for individual apprentices and runs anywhere — the phone in your pocket, a browser at the training center. Play in English or Spanish; the code vocabulary stays in English because that is the language of the exam and the jobsite. Electrical training directors can license CraftIQ for an entire cohort and see, per topic, where a class is solid and where it keeps missing. Conduit fill trending wrong across the second-years is a curriculum signal, and the dashboard surfaces it before the exam does. The web version plays in any browser with nothing to install, which makes it easy to put in front of a class tonight.
Start practicing freeCodes & standards for this trade
- National Electrical Code (NFPA 70)Every section CraftIQ tests, explained in plain language →
- International Residential CodeEvery section CraftIQ tests, explained in plain language →
- NFPA StandardsEvery section CraftIQ tests, explained in plain language →
Prepping for a license? Try the timed exam-prep mode.
Frequently asked questions
Is CraftIQ enough to pass the journeyman electrician exam?
No single app is, and you should distrust any that claims to be. CraftIQ is the reps: hundreds of code-audited NEC application questions with instant, cited feedback, plus a timed exam mode. Pair it with your JATC classroom hours and a current code book and you walk in with the two things exams punish you for lacking — speed and pattern recognition.
Which NEC edition does CraftIQ use?
Puzzles cite the current published NEC, and the whole electrical pool has been through a code-accuracy audit that re-derived each answer from the standard — including catching stale references from older editions. Your jurisdiction may adopt editions on a delay, so always confirm which cycle your exam tests.
Does CraftIQ cover motor calculations?
In depth. Motor puzzles drill the NEC Article 430 workflow — using table values for full-load current, sizing conductors and overcurrent protection under their separate rules, and the judgment calls around disconnects. It is one of the most-tested areas on journeyman exams and one of the most-drilled areas in CraftIQ.
Can I use CraftIQ as a code reference on the job?
Use the code library to understand what a section means — it explains every NEC section the puzzles cite in plain trade language. But for an installation decision, the adopted code and your AHJ are the authority. CraftIQ trains judgment; it doesn't replace the book that is legally in force.