Journeyman Electrician Study Guide 2026–2027 | 200 Practice Questions

Prepare for the journeyman electrician licensing exam with a complete, illustrated study guide organized in National Electrical Code (NEC) order. It covers the electrical theory, code rules, and calculations that state and local journeyman exams test, with worked examples for every calculation type and two 100-question practice tests written at real exam level.

This 232-page digital guide is built for open-book NEC exams: it shows where each rule lives in the Code, the table you use, and how to work the math step by step. It is written for apprentices finishing their hours, electricians preparing for a first or reciprocal license, and anyone reviewing the NEC for a journeyman exam.

What's Inside

• An exam overview: how journeyman exams are administered by state and local boards, typical question counts and time limits, open-book reference rules, calculators, passing scores, and the NEC edition tested
• 7 content review sections in code order, with worked examples, NEC tables, and exam tips
• Electrical theory: Ohm's Law, the power wheel, AC and three-phase systems, power factor, transformers, series and parallel circuits, and voltage drop
• NEC fundamentals: using the Code, Article 100 definitions, Article 110 working space, branch circuits, GFCI and AFCI protection, required outlets, and dwelling and commercial load calculations (standard and optional methods)
• Services, overcurrent protection, and grounding: service clearances and disconnects, standard OCPD ratings and tap rules, grounding electrodes, bonding, and GEC and EGC sizing with Tables 250.66 and 250.122
• Wiring methods: burial depths, support intervals, ampacity with temperature correction and adjustment, box fill, pull boxes, cables, raceways, and conduit fill
• Equipment: receptacles, luminaires, appliances, motor branch circuits and feeders, air-conditioning equipment, generators, and transformer protection
• Special occupancies and systems: hazardous locations and seals, garages and fuel dispensers, health care, pools and spas, EV charging, solar PV, emergency and standby systems, and limited-energy circuits
• Electrical safety: OSHA and NFPA 70E, PPE and rubber glove classes, lockout/tagout, approach boundaries, and arc flash
• Illustrated diagrams: the power wheel, wye and delta systems, an overhead service, the grounding electrode system, working space, box fill, pull boxes, burial depths, motor circuits, fuel dispenser classified areas, pool distances, and approach boundaries
• A final review checklist with essential formulas, 2-, 6-, and 12-week study schedules, FAQs, test-taking strategies, and recommended resources
• 2 practice tests (200 four-option questions, about one-third calculations), with a separate answer key explaining every answer and citing the NEC

Format

• Instant digital download (PDF), 8.5 × 11 in
• Clickable table of contents
• Print it or study on a tablet, laptop, or phone

Please note: This is a digital product. No physical item will be shipped.

NFPA 70®, National Electrical Code®, NEC®, and NFPA 70E® are registered trademarks of the National Fire Protection Association (NFPA). Test Treasure Publication is not affiliated with or endorsed by NFPA, any state or local licensing board, or any testing organization.