Checked against primary sources 2026-09-07
The study hub
Colorado Electrician Practice Questions: Free by Topic
Everything on this site you can practice with, in one place, with an honest note about the code edition. Colorado is one of the states where that note is short, because the examination moved to the 2026 edition on August 1, 2026 and our questions are written to it.
Test yourself: thirty free questions, timed
On this page
Start here
Start the free practice test. Thirty timed questions, no account and no email address, with the arithmetic worked out on every miss and the code section named.
Free question sets by topic. Fifty four topics, 25 questions each, worked the same way. Use these once the practice test has told you which subjects are weak.
The diagnostic. Twenty four questions across the main subjects, scored by subject and ordered worst first.
The hands-on labs. Bend conduit, wire a three way, fill a box and build a grounding electrode system, in the browser.
Every calculator, game and lab. The tools hub, with one line on what each one does.
The edition note, which is short here
Our question sets are written to the 2026 National Electrical Code numbering.
PSI's bulletin says that effective 8/1/2026, all examination questions are consistent with the 2026 National Electrical Code book, and that the 2026 book and Formula Page will be provided to you at the test center. The state electrical code moved to the same edition seventeen days earlier, on July 15, 2026, under Secretary of State rule filing 2026-00171. So the numbering in these questions matches the numbering in the book on the desk.
One date still sits in front of you. The 2023 code book can be provided upon request until 11/1/2026, and after that the bulletin says it is no longer offered as an option. Nothing published says the questions revert for anyone who asks for it, so read the November 1 deadline page before you decide to sit early for the older book.
If you learned on a 2023 copy, find each rule by subject in a 2026 book and note where it landed. We do not publish an article by article list of what moved between the editions, because our Colorado source file carries no such comparison and we will not print one we cannot cite. The edition change page says so plainly.
Practice the way you will sit
Colorado hands you the book. PSI provides the code book and a Formula Page at the test center, and then says you may not write, highlight, underline, and/or index on the references, and you may not use any other materials.
So there is nothing to bring and nothing to tab. Work every set with a clean copy of the 2026 edition beside you, use the table of contents and the part list at the front of an article rather than flags, and time the lookups.
The clock is the other half of it. Ninety scored items in 240 minutes is two minutes forty seconds a question, with thirty more minutes on top for unscored items, up to seven of them on the residential wireman paper and up to ten on the other three. That is enough time to look things up if you know roughly where to go.
The navigation drills are built for exactly this: the article drill, which table and the code navigation race. The book rules page carries the bulletin quote in full and covers what to practice instead of tabbing.
What to work first
Let a score decide rather than a feeling. Sit the diagnostic, take the two worst subjects into the topic sets, and re-sit it at the end.
Doing the diagnosis first matters more in Colorado than in most states, because a failure tells you nothing. Board rule 3 CCR 710-1.8.C gives results in a pass or fail format and says results will not be given in any other manner, and rule 1.8.D says examinations are not subject to review by candidates.
There is no published content outline for any of the four Colorado papers, on any Board, DORA or PSI page we read. The nearest thing to a state subject list is the continuing education rule, which names grounding and bonding, National Electrical Code changes, wiring methods, theory and calculations, and safety related to the electrical industry. The exam content page explains how we build a study order without an outline.
There is also no published pass rate and no published exam volume, from the Board, from DORA or from PSI. Any number you see quoted as a Colorado pass rate is unsourced.
The $79 question bank
The practice test ships 30 questions free. The full bank is 500, and the other 470 carry what the free ones carry: the arithmetic worked out, and a line on each wrong option naming the error that produces it.
$79 once for the other 148, if you want them. One payment, no subscription, no account, no password and no email address on file with us. The buy button sits on the practice test page.
The same payment opens the seven remaining rungs of the calculation ladder. Rung one is free and works with no network.
For context on the price: PSI's examination fee is $78 and a retest is $73, and the bulletin prints that examination fees are not refundable or transferable and that the fee is valid for one year from the date of payment. A second attempt costs about what the bank does.
Buying for a crew, a shop or a class? One payment covers everybody. Each person claims a seat with their own email on any device, and the seat licenses sit under the buy button on the practice test page.
What these questions are not
Every question is original. None of them came from a candidate's memory of a real paper, and none of them is real examination content. Board rule 3 CCR 710-1.8.B treats the content and answers of Board examinations as proprietary property, and a licensee or registrant who discloses examination content can be disciplined.
We are not a school, a training program, an apprenticeship, an approved course, a continuing education provider or an examination vendor, and nothing here is approved or endorsed by the Colorado State Electrical Board, the Division of Professions and Occupations, DORA or PSI. We are independent of all of them.
Nothing on this site earns a continuing education hour either. The Board requires all CE to be taken from a provider that has attested to the Board that its courses and instructors meet the requirements in Board rule, and it publishes its own provider lists by cycle. The CE page covers the 24 hours and the competencies.
Nothing here promises a pass. What it does is show you which questions you get wrong and why, which is the part you can act on.
Questions people ask
Are these Colorado practice questions free?
Fifty four topic sets of 25 questions each are free, and so are the first 30 questions of the timed practice test. The remaining 148 bank questions are $79 once, with no subscription and no account.
Do the questions match the Colorado code edition?
Yes. They are written to the 2026 National Electrical Code numbering, and PSI's bulletin says examination questions have been consistent with the 2026 book since August 1, 2026.
Should I practice with a tabbed code book?
No. PSI supplies the code book and Formula Page and bars writing, highlighting, underlining and indexing on them, along with any other materials. Practice on a clean copy so your first clean lookup is not in the exam room.
What if I studied on the 2023 book?
The structure and the arithmetic carry over, the page numbers do not. The 2023 book can be requested at the test center until November 1, 2026, and nothing published says the questions revert for anyone who asks.
Are these real Colorado exam questions?
No. Every question is original and written by us. Board rule treats real examination content as proprietary property, and we do not publish real exam content or vendor material.
Do these count as continuing education?
No. The Board requires CE to come from a provider that has attested to the Board and publishes its own provider lists. We are not a continuing education provider and nothing here earns a CE hour.
How fast do I need to answer?
Ninety scored items in 240 minutes is two minutes forty seconds each, plus thirty extra minutes for unscored items, up to seven of them on the residential wireman paper and up to ten on the other three. Time your practice, because a Colorado result letter says pass or fail and will not tell you that time was the problem.
Thirty free questions, timed, with the working shown
Every miss comes back with the arithmetic worked out and the code section named, so you learn the trap and not just the answer. No account.
All questions here are original. They are not actual exam questions, and no question bank can promise you a pass.
What this page cites
- PSI candidate information bulletin 3395 The 2026 edition switch effective 8/1/2026, the 11/1/2026 cutoff for the 2023 book, the supplied code book and Formula Page, the marking bar, the 90 item format and the $78 and $73 fees. Bulletin updated 6/18/2026. source
- Secretary of State eDocket 2026-00171 The rule filing that made the 2026 National Electrical Code the Colorado state electrical code, effective 07/15/2026. Read 7 September 2026. source
- 3 CCR 710-1.8, examinations Pass or fail results only, no candidate review, and examination content treated as proprietary property. Text current through Register Vol. 48, No. 11, June 10, 2025. source
- State Electrical Board continuing education page The 24 hour requirement, the five competencies and the rule that CE must come from a provider that has attested to the Board. Read 7 September 2026. source
- COPRRR archive of reviews Lists no sunset or sunrise review of the State Electrical Board, which is one reason no Colorado pass rate is published. Read 7 September 2026. source
The 2023 to 2026 section crosswalk maps every section that moved, both directions, $29 once.