Every answer cites the article, so you learn where things live in the code. Practice drills, journeyman prep and mistake analysis turn slow study nights into a score you can watch climb.
Pick a topic or an NEC chapter, choose your difficulty, and the questions adjust as you improve.
One number that tells you if you would pass today, and mistake analysis that shows exactly what to fix.
The same 22 calculators the journeymen use: bending, box fill, voltage drop, load calcs and more.
"Great for student and beginners to have at hand rather than the bulky book"
adebiase96, App Store
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