Fifteen exam-style questions from VoltMark's TDLR Journeyman Electrician bank, scored topic by topic against the 70% pass bar. Free, no signup, no card, about ten minutes. Below the test: the verified exam format from the PSI candidate bulletin, and what to study once you know your weak topics.
Take the free 15-question readiness checkNo card. No account needed to start. Results by topic.
A pull box contains 500 kcmil insulated conductors that are pulled straight through the box. The largest raceway entering the box is trade size 3. What is the minimum required length of the box?
B — 24 in. In straight pulls, the length of the box shall not be less than eight times the metric designator (trade size) of the largest raceway: 8 × 3 = 24 in.
Finding it in the book: Chapter 3 (wiring methods) → Article 314 (outlet, device, pull and junction boxes) → 314.28(A)(1). Index route: look up "pull boxes" and take the sizing entry. This is the open-book skill the exam actually tests — the rule is short, the points are in finding it fast.
Reviewed for the 2026 NEC by Gary Jung, master electrician, 2026-09-06. Original VoltMark question; never an actual exam item.
That is one of 15. The readiness check spreads them across the exam topics and tells you which ones are costing you points.
Texas electricians applying for, or retesting for, the Journeyman Electrician license. TDLR requires 7,000 hours of experience to sit for the exam and 8,000 hours to be licensed (TDLR). If you are testing for a Texas Master license, see the Texas Master guide.
| License / administered by | TDLR Journeyman Electrician; exam administered by PSI |
| Code edition | 2026 NEC for exams from September 1, 2026 |
| Portion 1: NEC Knowledge | 59 items (3 unscored), 130 minutes |
| Portion 2: Calculations | 26 items (2 unscored), 110 minutes |
| Passing score | 70% on each portion; unused time does not roll over between portions |
| What you can bring | A soft-bound NEC. Only permanent index tabs made or provided by the NEC publisher; notes and highlighting made before the exam. Not allowed: the NEC Handbook; loose-leaf, spiral-bound or ring-bound copies; homemade tabs; any extra paper. |
| Law / business section | None on the journeyman exam |
| Exam fee | $78 for both portions; the retake fee is $78 whether you fail one portion or both |
| Retakes | You can test as many times as needed within your eligibility period (one year from when TDLR receives your application) |
TDLR's FY2025 exam statistics list 1,390 passes out of 5,050 journeyman exam results (27.5%), with 24.5% on the NEC portion and 20.6% on Calculations. The book is allowed, and most candidates still don't pass. The skill being tested is finding the right rule fast and applying it correctly.
Fifteen questions from VoltMark's Texas journeyman bank, spread across as many exam topics as possible. Your result shows a score for each topic against the 70% bar, so you can see where your points go before you spend weeks studying the wrong thing. Every question shows the explanation and the route to find it in the NEC. It's a sample, not a prediction of your exam score.
In the 2026 NEC, the branch-circuit, feeder and service load calculations moved to Article 120 (they were in Article 220 in earlier editions). If you learned load calcs from a 2023 book, re-tab for 2026.
See what changed between the 2023 and 2026 NEC before you re-tab. Testing with PSI for the first time? The PSI exam-day guide covers check-in, what you may bring, and how the two portions are administered.
Practice both. On exam day, use whichever gets you there faster. VoltMark shows both routes after every question.
Start with your lowest topic. Run practice sessions until it clears 70%, using the guided lookup on every miss, then move to the next. Once every topic clears, switch to full timed simulations.
Free gets you the readiness check, 10 practice questions a day with explanations and code-navigation help, and sample flip cards. Paid unlocks everything: unlimited practice, full timed simulations in the Texas format, every flip-card deck, audio study, narrated answer coaching and the exam-day cram sheet.
Instant PDF download: key formulas, box fill, voltage drop, conductor ampacity shortcuts, and night-before checklist.
Study roadmap, 5 worked calculations, NEC lookup paths, full practice test, and night-before readiness guide.
Pass — or your money back. Complete the study path (30 study sessions and 3 full exam simulations, tracked automatically in your Account tab) and pass your exam, or get a full refund and free access until you pass. Full terms: Terms of Service.
VoltMark is an independent study product. It is not affiliated with, endorsed by, or sponsored by TDLR, PSI, NFPA or any licensing authority. It is not a state agency, does not issue licenses, is not legal advice, and is not approved continuing education. We never use actual exam questions. Always confirm current rules in your official PSI candidate bulletin.
Electrician licensing exam prep: practice questions, timed exam simulations, and step-by-step help finding every answer in the NEC.