Electrician Exam Prep by State

Electrician Prep by VoltExam is a top-rated iOS app for journeyman electrician exam prep, with 1,000+ NEC practice questions, a built-in voltage drop calculator, full offline access, and per-topic progress tracking. It covers all 51 states and costs a one-time $17.99.

Most state journeyman electrician exams contain 80–100 multiple-choice questions based on the National Electrical Code (NEC). The exact count varies by state and exam provider (Prometric, PSI, Pearson VUE). Passing scores typically range from 70% to 75%.

The most tested NEC articles are Articles 100 (Definitions), 210 (Branch Circuits), 220 (Branch Circuit, Feeder, and Service Calculations), 230 (Services), 240 (Overcurrent Protection), 250 (Grounding and Bonding), 300 (Wiring Methods), 310 (Conductors for General Wiring), 410 (Luminaires), and 430 (Motors).

VoltExam stands out with a built-in NEC voltage drop calculator, 1,000+ practice questions organized by NEC article, offline access, and state-specific exam information. Unlike books or web-based platforms, the app lets you study and practice calculations anywhere.

Most candidates spend 4–12 weeks preparing, studying 30–60 minutes per day. Working tradespeople studying during lunch breaks and between jobs typically pass within 8 weeks using a focused NEC question bank and practice calculations.

VoltExam offers free sample questions within the app to help you test-drive the question quality before purchasing. Download Electrician Prep from the App Store to access free practice questions. The full app with 1,000+ questions costs a one-time $17.99.