Electrical Exam Prep: NEC Quiz2.1.0 - App Store

Written by a licensed electrician who used these exact questions to pass his own exam. Nearly 1,400 multiple-choice questions mapped to the 2023 National Electrical Code, with hints that teach you where to look in the code book and worked solutions for the calculations.

WHAT YOU GET
. 1,394 NEC questions in the style of state journeyman and master electrician exams (PSI and ICC formats).
. Smart hints: instead of just showing the answer, the app points you to the NEC article or table where it lives, so you get faster at finding things in an open-book exam.
. 124 calculation questions with step-by-step worked solutions: wire ampacity with temperature and conductor-count adjustments, voltage drop, conduit fill from Chapter 9 Tables 4 and 5, box fill, motor circuits, and service load calculations.
. The NEC tables you need, built in, so a hint can open the table for you.

STUDY BY TOPIC
Pick one of 17 categories or drill the whole bank:
Wire Sizing . Conduit Sizing . Motor Loads . Voltage Drop . Box Fill . GFCI / AFCI . Service & Feeders . Transformers . Ground-Fault Protection . Short-Circuit & Interrupting . PV Systems . Grounding & Bonding . Low-Voltage & Fire Alarm . Hazardous Locations . Wiring Methods & Workmanship . General Calculations & Admin . Communications & Cabling

TRACK YOUR PROGRESS
Each category has a progress bar that fills as you answer correctly. Missed questions collect in their own pile so you can retry them until they stick. When every bar is green, you are ready.

WHO IT IS FOR
. Apprentices learning to navigate the code book while the concepts are fresh.
. Journeyman candidates who want realistic practice before the state exam.
. Master electrician candidates brushing up on calculations and the 2023 changes.
. Working electricians who want a quick reference and a refresher.

The app is free to use and supported by ads. Everything works offline once installed.

More practice questions and state-by-state licensing guides at electriciantestprep.com.

NEC(R) and National Electrical Code(R) are registered trademarks of the National Fire Protection Association, Quincy, MA. This app is not affiliated with or endorsed by the NFPA. Hints and tables summarize code requirements in the author's own words; consult the current NEC as the definitive reference.

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Version History • Code-book hints: the hint popup now reads like the printed NEC, with thumb tabs and page turns, so you learn where to find things.
• New home screen: every topic with its own progress bar, one tap to quiz or read.
• Study in 10-question rounds with a results card: first-try score, time, and what to review.
• Fewer interruptions: ads wait for a natural break between questions.
• New icon, rebuilt for the latest iOS. 2.1.0 Sep 19 Reduced the ad frequency and lowered the price for a subscription. Changed the layout, subdivided the electrical questions so the user can focus on different categories. 'Wire Sizing',
'Conduit Sizing',
'Motor Loads',
'Voltage Drop',
'Box Fill',
'GFCI / AFCI',
'Service & Feeders',
'Transformers',
'Ground‑Fault Protection',
'Short‑Circuit & Interrupting',
'PV Systems',
'Grounding & Bonding',
'Low‑Voltage & Fire‑Alarm',
'Hazardous Locations',
'Wiring Methods & Workmanship',
'General Calculations & Admin',
'Communications & Cabling', 2.0.0 04/21/2025 Added a subscription feature that turns off the ads. 1.1.0 11/22/2024 1.0 10/25/2024