Master Electrician Practice Tests

Advanced NEC code, load calculations and electrical design for Master Electrician candidates.

4 tests · 102 questions · Free · No signup · NEC 2023

Preparing for the Master Electrician exam requires deeper NEC knowledge and stronger calculation skills than the Journeyman exam. These tests cover advanced topics: service entrance design, three-phase load calculations, transformer sizing, generator systems, motor branch circuits, and special occupancies.

Master exam questions often present design scenarios rather than code-lookup questions. Practice reading one-line diagrams and panel schedules. The passing score in most states is 70–75%.

Service Entrance (Art. 230) Load Calc — Optional Method (Art. 220) Transformer Sizing Three-Phase Circuits Motor Branch Circuits (Art. 430) Special Occupancies (Art. 500–695)
Difficulty:
Sort:
RECOMMENDED
Wiring Methods Branch Circuits Motors
NEC 2023

Master Electrician Practice Test - Calculations & Service Design

Intermediate

Master Electrician practice test focused on commercial and multifamily load calculations, service and feeder sizing, transformer protection, and motor feeder design. NEC 2023 with 2026-stable items tagged accordingly.

25 Q · 45 min · 70% pass
Start Test
Wiring Methods Branch Circuits Motors
NEC 2023

Master Electrician Practice Test - Code Application & Coordination

Intermediate

Master Electrician practice test on code application across articles: hazardous locations, health care, separately derived systems, bonding, GFP equipment, PV/ESS, communications, and selective coordination.

25 Q · 45 min · 70% pass
Start Test
Wiring Methods Branch Circuits Motors
NEC 2023

Master Electrician Practice Test - Motors, Transformers & Industrial

Intermediate

Master electrician practice test on motor branch circuits, overload protection, feeder sizing, transformer overcurrent, separately derived systems, arc welders, industrial machinery, generators, and A/C equipment.

26 Q · 45 min · 70% pass
Start Test
Wiring Methods Branch Circuits Motors
NEC 2023

Master Electrician Practice Test - Special Occupancies & Advanced Wiring

Advanced

Master electrician practice test covering special occupancies: marinas, RV parks, agricultural buildings, swimming pools, theaters, aircraft hangars, carnivals, health care, fuel dispensing, and hazardous classified locations.

26 Q · 45 min · 70% pass
Start Test