National Electrical Code
Free nec code book practice test with 12 questions and answer explanations. Prepare for the 2026 exam with instant feedback and full study guides.
About the Author
Frank RodriguezMaster Electrician License, BS Electrical Technology
Licensed Master Electrician & Journeyman Exam Specialist
Texas State Technical CollegeFrank Rodriguez is a licensed master electrician with a Bachelor of Science in Electrical Technology from Texas State Technical College. He has 20 years of commercial and industrial electrical contracting experience and 10 years teaching apprenticeship and licensing exam prep programs. Frank specializes in NEC code mastery, load calculations, and electrical theory for journeyman and master electrician candidates.