Master Electrician Practice Tests

Advanced practice tests for master electrician certification — code calculations, advanced theory, and business practices.

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Study Guides

Written guides for the topics covered in these tests — read first, then test yourself.

Service & Feeder Sizing

Worked examples for residential and commercial service sizing.

Transformer Calculations

Single-phase and three-phase kVA, primary/secondary OCPD.

Business Law Essentials

Liens, contracts, and bonding for licensed contractors.

About Master Practice Tests

Master electrician certification requires advanced knowledge of electrical systems, business practices, and code compliance. Our practice tests include:

Advanced NEC code calculations
Service and feeder sizing
Motor controls and transformers
Business and contract law
Project management and estimating

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Last updated April 2026 · NEC 2023 Edition