If you’re aiming for a Texas Master Electrician license, you already know this isn’t a “quick review” kind of exam. The step up to master-level work demands stronger code navigation, sharper calculations, and better decision-making under time pressure. This Texas-focused Master Electrician Exam Prep and Study Guide is built to help experienced electricians turn what they know into consistent exam performance—so you can walk into test day with a plan, a process, and the confidence that comes from real practice.
This guide includes 12 practice exams plus 2 full final exams designed to mirror how you’ll actually think on test day: find the rule, apply it correctly, and move on without getting stuck. You’ll work through NEC-style questions that reward speed and accuracy, along with calculation-focused practice that helps you avoid common traps (units, rounding, demand factors, conductor sizing, and more). The goal is simple: help you study smarter, tighten up your weaknesses, and build the pacing you’ll need for both exam portions.
From 1 Exam Prep, this resource is written to keep your prep structured and practical—less “read and hope,” more “practice, review, and improve.” The product description notes 400+ practice questions, step-by-step explanations, and targeted coverage of topics like conductor sizing, motors, transformers, overcurrent protection, and residential/commercial load calculations. It also references a section on Texas electrical requirements and an available bundle option that includes an online course add-on.
Who this is for:
Texas electrician licensing is overseen by the Texas Department of Licensing and Regulation (TDLR), and examinations are delivered through PSI. For the Master Electrician exam, the official Candidate Information Bulletin shows the exam is structured as two separate portions: an NEC Knowledge portion and a Calculations portion. Both portions are multiple choice, and you must pass each portion with a minimum score of 70%.
The content outline published by PSI highlights major areas that show up on the Master Electrician exam. On the NEC Knowledge side, this includes (among other areas) definitions/theory/plan reading, services and grounding/bonding, feeders and branch circuits, wiring methods and materials, equipment and devices, motors and generators, special occupancies/conditions, and renewable energy technologies. On the Calculations side, the outline emphasizes load calculations, grounding/bonding, transformers, feeders, branch circuit calculations and conductors, motors/generators, and related topics.
The Texas electrician examinations are open book. TDLR’s exam information page states the exam is open book and allows candidates to reference the National Electrical Code (NEC), 2023 Edition. PSI’s bulletin adds important details about what is and is not allowed in the testing room.
Because this is an open-book exam, a major part of passing is not just “knowing code”—it’s knowing where to find it fast, and how to interpret it correctly under time pressure. That’s why practice exams that force you to navigate and apply code rules are such a powerful way to study.
Texas Master Electrician licensing begins with meeting TDLR’s experience requirements, submitting your application, receiving eligibility approval, and then scheduling your exam through PSI.
TDLR defines Master Electrician work broadly as installing, maintaining, or extending electrical wiring systems and associated equipment, including service entrance conductors. The state also notes that—aside from certain exemptions—anyone performing electrical work in Texas must be licensed.
For Master Electrician applicants, the key state requirements emphasized by TDLR include:
Knowing the rules of the testing room can save your exam day from unnecessary stress. PSI’s Candidate Information Bulletin outlines common testing policies and what to expect at the computer-based exam site.
How to use this study guide effectively:
Master-level exams reward organized preparation. 1 Exam Prep supports your progress by giving you structured practice that mirrors how the test actually feels—question after question that forces you to locate the rule, apply it correctly, and move forward with confidence.
This guide is designed to help you:
Whether you choose the study guide alone or the option that includes online course support, the focus stays the same: practical, trade-centered preparation that helps you walk in ready to perform.
Yes. Texas electrician examinations are open book. You are allowed to reference the National Electrical Code (NEC), 2023 Edition, as long as your book meets the testing room requirements.
TDLR and PSI specify the National Electrical Code (NEC), 2023 Edition as the reference material for the exam.
The PSI bulletin shows the Master Electrician written examination consists of two portions: NEC Knowledge and Calculations. Both portions are multiple choice, and you must pass each with a minimum score of 70%.
The NEC Knowledge portion has 75 items (including 5 non-scored items). The Calculations portion has 33 items (including 3 non-scored items).
The NEC Knowledge portion allows 150 minutes. The Calculations portion allows 170 minutes. Time does not roll over from one portion to the next.
You must pass each portion with a minimum score of 70%.
TDLR requires applicants to have held a Journeyman Electrician license for at least two years and to document 12,000 hours of on-the-job training under the supervision of a Texas-licensed Master Electrician.
TDLR states the initial Master Electrician license application must be submitted by mail.
PSI allows tabbing only with permanent index tabs manufactured and/or provided by the NEC publisher. Homemade or non-NEC tabs are not allowed, and the NEC Handbook is not permitted in the exam room.
PSI’s bulletin indicates your score is provided immediately upon completion (on screen and via a printed score report at the exam site).