Frequently Asked Questions

Master Electrician Practice is an AI-powered study platform built for licensed electricians preparing for the master electrician exam in Texas, Colorado, Massachusetts and Minnesota. Each state licenses masters through its own board — TDLR in Texas, the DORA State Electrical Board in Colorado, the Division of Occupational Licensure in Massachusetts and the Department of Labor and Industry in Minnesota — and each administers its master exam through its vendor (PSI in Texas, Colorado and Massachusetts; the Minnesota DLI administers its own exams). The platform follows each state's official blueprint with code-referenced explanations and exam simulations that mirror the open-book conditions you will face at the test center. We only publish for exams that test the NEC 2026, so the code edition in our questions is the one you actually open in the testing room.

Master Electrician Practice serves licensed electricians ready for the next step up: the master license is what lets you run jobs, supervise journeymen, and own an electrical contracting business. Eligibility is set by each state — Texas, for example, requires at least two years as a Texas journeyman and 12,000 documented hours of on-the-job training under a Texas-licensed master electrician — and in every state we cover you must have held a journeyman license to sit for the master exam.

Master Electrician Practice covers the master electrician exam in Texas, Colorado, Massachusetts and Minnesota, states whose master exam is on the NEC 2026, with content built to each state's licensing board, exam vendor, and official blueprint:

• Texas — Master Electrician: TDLR · PSI — NEC 2026 — two scored exams (NEC Knowledge and Calculations)
• Colorado — Master Electrician: DORA State Electrical Board · PSI — NEC 2026 — single exam (90 items, 240 minutes)
• Massachusetts — Master Electrician Part 1 (code): Division of Occupational Licensure · PSI — NEC 2026 — 90 items in 240 minutes, 70% to pass, plus Part 2 Business and Law — 50 items in 120 minutes, 70% to pass
• Minnesota — Class A Master Electrician: Department of Labor and Industry · DLI — NEC 2026 — 80 items in 330 minutes, 70% to pass

Why only these? Because we only publish for exams that test the NEC 2026. A state whose candidate bulletin still tests an earlier edition (NEC 2023, for example) is not served here: preparing for a 2023 exam on 2026 material would send you into the testing room with the wrong edition open. Each state we cover has its own exam structure and rules, and our practice, theory, and simulations follow the blueprint for the state you are preparing for.

All the states we cover test the 2026 edition of the National Electrical Code (NEC), the edition this platform teaches. Texas adopted the NEC 2026 effective September 1, 2026. Colorado's master exam is consistent with the NEC 2026 effective August 1, 2026 (its bulletin provided the 2023 book on request until November 1, 2026). Massachusetts and Minnesota are on the NEC 2026 as well. States that still test an earlier edition are outside what this platform covers.

All of our practice questions are tagged with the exact NEC article, section, and table they reference, and content is kept aligned with the code edition used in your state.

Every state we cover follows its own official exam blueprint. Texas splits its master exam into two separately scored portions, and Master Electrician Practice covers both, following the official PSI/TDLR content outlines:

• TX-MST-KNOW — NEC Knowledge: 75 items total (70 scored + 5 unscored pretest), 150 minutes, 70% to pass. Subject areas: Definitions/Theory/Plans (7), Services/Service Equipment/SDS (11), Feeders (7), Branch Circuit Conductors (11), Wiring Methods & Materials (7), Equipment & Devices (7), Motors & Generators (7), Control Devices & Disconnecting Means (3), Special Occupancies/Equipment/Conditions (7), Renewable Energy (3).
• TX-MST-CALC — Calculations: 33 items total (30 scored + 3 unscored), 170 minutes, 70% to pass. Subject areas: Calculations & Theory (2), Services/SDS (8), Feeders (3), Branch Circuit Calculations & Conductors (4), Wiring Methods (2), Equipment & Devices (2), Motors & Generators (6), Control Devices (1), Special Occupancies (1), Renewable Energy (1).

Both Texas portions are open book against the NEC 2026, and every question is tagged by subject area and code reference so you can target the exact outline areas that carry the most weight — Services/Service Equipment/SDS and Branch Circuit Conductors lead the Knowledge portion, and Services/SDS and Motors & Generators lead the Calculations portion.

Colorado administers a single master electrician exam from its own official blueprint: 90 items in 240 minutes, a 70% pass score, and the reference NEC is provided at the test center. Minnesota's Class A master exam is 80 items in 330 minutes at 70%. Massachusetts runs its master licensing as a Part 1 (code, 90 items in 240 minutes, 70%) and a Part 2 (Business and Law, 50 items in 120 minutes, 70%); both parts are served here. Our practice sets and simulations mirror the item counts, time limits, subject areas, and code edition of each state.

Rules vary by state. In Texas, both the NEC Knowledge and Calculations portions are open-book, multiple-choice exams (four answer choices per question) in which you bring your own NEC 2026. In Colorado, the reference NEC is provided at the test center. Whatever the rule in your state, success depends on code navigation: knowing which NEC chapter and article covers which topic, using the index and tabs efficiently under time pressure, and reading sections carefully, including their exceptions and tables.

Our questions are designed to build exactly that skill under the code edition and exam rules of your state. In Texas, unless a question says otherwise, all conductors are considered copper.

All the states we cover test on the NEC 2026. Texas adopted the NEC 2026 effective September 1, 2026 and tests on that edition — candidates bring their own soft-bound NEC 2026, and manufacturer tabs and highlighting are permitted. In Colorado the reference NEC is provided at the test center, also on the 2026 edition. Massachusetts tests the 2026 NEC with the Massachusetts amendments (527 CMR 12.00), and Minnesota tests the 2026 NEC.

Check your state's candidate bulletin for exactly which edition is in effect, whether you bring your own copy, and what tabs and highlighting are permitted. We recommend studying with your own copy of the NEC edition you will be tested on so you build the tab-and-index habits you will rely on during the real exam.

Calculator rules are set by each state and its exam vendor. In Texas, a non-programmable calculator is permitted on both portions — the Calculations portion in particular relies on arithmetic for ampacity, voltage drop, conduit fill, and load calculations.

Before exam day, check the current candidate bulletin for your state and for its exam vendor (PSI, which delivers the Texas, Colorado and Massachusetts master exams; Minnesota's DLI administers its own) for the list of approved calculator models.

It depends on your state. Texas administers the master exam as two separately timed and separately scored portions:

• TX-MST-KNOW — NEC Knowledge: 75 items (70 scored + 5 unscored pretest), 150 minutes
• TX-MST-CALC — Calculations: 33 items (30 scored + 3 unscored), 170 minutes

That is roughly 5 hours and 20 minutes of total exam time across the two Texas portions. The unscored pretest items are not identified, so you must answer every item as if it counts.

States with a single exam have one item count and time limit — Colorado's master exam, for example, is 90 items in 240 minutes. Our exam simulations mirror the item counts, time limits, and rules of your state's official blueprint.

Passing scores are set by each state. Texas requires 70% on the scored items of each portion, and because the NEC Knowledge and Calculations portions are scored independently, you must pass both to earn your Texas Master Electrician license. Colorado requires 70% to pass its single master exam, and the Massachusetts and Minnesota master exams both carry a 70% pass line.

Your state's candidate bulletin states the passing score and scoring rules in effect where you are testing.

In Texas, because the NEC Knowledge and Calculations portions are scored separately, you retake only the portion you failed rather than the entire exam. The retake fee applies per failed portion, and retake scheduling and any waiting periods are handled through PSI and TDLR — check the current candidate bulletin for re-application requirements before scheduling. Texas sees roughly 7,400 master exam attempts a year with a pass rate around 19–22%, so treating retakes as part of the process — and preparing for both portions in parallel — is the realistic strategy there.

In single-exam states, a failed attempt means retaking the full exam under that state's rules. Retake policies, fees, and waiting periods vary by state and are published in each state's candidate bulletin.

Texas, Colorado and Massachusetts contract their master exam to PSI: on behalf of TDLR in Texas, of the DORA State Electrical Board in Colorado and of the Division of Occupational Licensure in Massachusetts. Candidates schedule through PSI and take the exam on a computer at a testing center. Minnesota's Department of Labor and Industry writes and administers its own Class A master exam.

Your license application is filed with your state's licensing board before you can sit for the exam, and exam fees and scheduling details are published in the official candidate bulletin for your state.

Eligibility is set by the state where you are applying, and in every state we cover you must hold a journeyman electrician license to qualify for the master exam. Texas requires at least two years as a Texas journeyman AND 12,000 documented hours of on-the-job training performed under a Texas-licensed master electrician, then an application filed with TDLR before you can take the exam.

Experience documentation and application requirements can change and differ by state, so verify the current rules on your state licensing board's website before you apply.

Master Electrician Practice adjusts question difficulty based on your performance:

• Score 80% or higher on a set of questions → difficulty increases (EASY → MEDIUM → HARD)
• Score below 50% → difficulty decreases

This keeps you studying at the right level so your time is always spent efficiently.

The AI Tutor is an interactive chat feature that helps you understand difficult concepts. When you encounter a question you do not understand, you can ask the AI Tutor for a simplified explanation.

It breaks complex NEC requirements into clear, digestible answers, citing the relevant articles and tables.

Master Electrician Practice offers four plans:

• FREE — the first chapter of the exam for the state you are studying, with practice and theory included
• MONTHLY — $79 per month, full access to all chapters of your state's official-blueprint content
• YEARLY — $299 per year (2 months free vs Monthly)
• LIFETIME — $549 one-time payment for permanent access to all current and future content, including future NEC code-cycle updates

Master Electrician Practice builds its practice sets directly from the official blueprint of each state we cover — the PSI/TDLR outlines in Texas, and the state board blueprint in Colorado, Massachusetts and Minnesota — rather than counting a fixed pool of questions:

• Scenario-based questions with exact NEC references (article, section, and table)
• Calculation practice for services, feeders, branch circuits, ampacity, motors, and load calculations
• New questions added continuously and kept aligned with each state's current code edition

FREE users get the first chapter of the exam for the state they are studying, while paid subscribers get the full official-blueprint practice for that state.

Master Electrician Practice is a web application optimized for desktop and mobile browsers. You can study anywhere, anytime from your phone, tablet, or computer — no app download required. The responsive design adapts to any screen size.

Yes, Master Electrician Practice provides detailed analytics to help you identify weak areas and focus your study time:

• Accuracy by subject area and chapter
• Difficulty progression
• Exam history
• Performance trends

Getting started takes three steps:

• Visit masterelectricianpractice.com and create a free account
• Pick your state and choose the FREE plan to try the first chapter of that state's exam
• Upgrade to MONTHLY, YEARLY, or LIFETIME when you are ready for full access to your state's official-blueprint content