Texas TDLR master electrician mock exam
75 questions · 150 min · 70% to pass then 33 questions · 170 min · 70% to pass
NEC Knowledge: 75 questions in 150 minutes · Calculations: 33 questions in 170 minutes. Each part is timed and scored on its own against its 70% pass mark, with a worked explanation for every answer and a score by topic.
Our two parts use the official item counts and clocks, follow the TDLR content outline and score each part on its own. Time does not carry over between parts, as on the real exam. Questions are drawn only from items whose answer holds in the 2026 NEC, so the Calculations part covers motor, transformer, feeder, conductor, grounding and raceway calculations and leaves out dwelling load calculations, whose values changed in 2026.
Before you start
- Keep your NEC handy. Questions follow the 2026 NEC and every answer cites its section.
- Citations use 2023 NEC section numbers. Every question in this exam has the same answer in the 2026 NEC; some sections are numbered differently there (load calculations moved from Article 220 to Article 120 in 2026).
- You can skip, go back, change answers and flag questions until you submit. Each part has its own clock, which keeps running in background tabs and reloads. When time runs out, your answers are submitted.
Create a free account before you start
Create a free account to start. Every drill includes one free attempt. A master electrician pass unlocks every full timed exam and unlimited drills.
Original practice questions written for the NEC. Independent preparation, not affiliated with NFPA, ICC, PSI, Pearson VUE or any state board.