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Checked against primary sources 2026-09-07

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Wisconsin 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. Wisconsin needs a longer note than most states, because the DSPS exam pages still name the 2017 edition and DSPS expects its exam updates to be completed by October 1, 2026.

Test yourself: thirty free questions, timed

On this page
  1. Start here
  2. The edition note, and why it is long here
  3. The sixteen sets where the numbering matters
  4. The other thirty eight sets read straight
  5. Practice with the stack you will actually carry
  6. The Wisconsin half is not in question form here
  7. The $79 question bank
  8. What these questions are not
  9. Questions people ask
  10. What this page cites

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 areas are weak.

The diagnostic. Twenty four questions across the main areas, scored by area and ordered worst first.

The four 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 daily question. One question every morning with the working and the section, and a streak counter, for the days the study hour does not happen.

The edition note, and why it is long here

Our question sets are written to the 2026 National Electrical Code numbering. Wisconsin is not on that edition, and it is in the middle of moving between two others.

The exam pages still name the 2017 edition. Every DSPS electrician exam page named the 2017 National Electrical Codebook or Handbook when we read it on September 7, 2026, and the standalone permitted materials list stamped June 2025 says the same. DSPS publishes no date on which that edition stops.

From October 1, 2026 the exam is expected to be on the 2023 edition. DSPS says it "expects exam updates to be completed by October 1." The trade press reports the change as starting on October 1. Those wordings are not identical, and the October 1 switch page prints both without pretending to resolve them.

The work is on a third clock again. SPS 316 adopted the 2023 National Electrical Code with Wisconsin amendments on September 1, 2026, so for the month of September the code on site is newer than the code on the paper. That gap has its own page.

What this means for the questions: the rules and the arithmetic are unaffected, and the section numbers are not. Our record of the moves runs from the 2023 edition to the 2026 edition. It reaches the book the exam is expected to use from October 1, and it does not reach a 2017 book at all.

The habit that solves it either way: when a worked answer gives you a section number, find the rule by subject in your own copy and note the number it carries there.

The sixteen sets where the numbering matters

We checked all 54 sets. Sixteen of them cite a section that changed address between the 2023 and 2026 editions, so these are the ones to read carefully if your book is a 2023 copy. If your book is a 2017 copy, treat every number in every set as one to look up by subject, because our record does not reach that far back.

Load calculations, Article 220 in the older books and Article 120 in 2026

Transformer overcurrent protection, 450.3 in the 2023 edition and 450.5 in 2026

Protection against physical damage, 300.4 in the 2023 edition and 300.6 in 2026

The bar on re-bonding neutral to ground, 250.24(A)(5) in the 2023 edition and 250.24(B) in 2026

Systems over 1000 volts, Article 235 in the 2023 edition and Articles 265 through 268 with grounding at 270 in 2026

The other thirty eight sets read straight

The rest cite articles and sections that carry the same numbers in both editions we hold: Article 250 for grounding and bonding, Article 310 with the ampacity table at 310.16, Article 240 for overcurrent, 314.16 for box fill, Article 430 for motors, and the Chapter 9 tables.

We have not set the 2026 values against a 2017 or a 2023 printing row by row, so check any number that decides an answer in the book you are carrying. On an open book paper that is the right habit anyway.

Sets worth working first: grounding and bonding, grounding electrodes, box fill, conduit fill, motor calculations, small conductors and overcurrent, receptacle spacing and pools and spas.

Practice with the stack you will actually carry

Some states hand you a clean book at the door. Wisconsin does the opposite, and that changes how you should practice.

The DSPS reference list allows up to four items: one binder holding Wis. Admin. Code SPS 305, Wis. Admin. Code SPS 316 and printed notes, a National Electrical Code book or handbook, and up to two printed bound reference books. DSPS names the sort of thing it means by the last one, including Ugly's, the Ferm's Fast Finder Index, the Tom Henry series and the Mike Holt series.

So build that stack now and work every set with it open. Printed notes have to be three hole punched and in the binder, printed code has to be bound in a three ring binder, and three ring paper dividers with tabs are permitted. Removable tabs, sticky notes, paperclips and loose papers are not, practice or previous exams do not qualify as notes, and highlighters are permitted for plumbing exams only.

Two habits follow from that. Put every section number you have to hunt for onto a note page in the binder, since notes are allowed and worked practice papers are not. And keep the stack small, because two reference books you know beat four you bought last week.

Time the lookups rather than the questions. Pearson VUE gives every Wisconsin electrician exam four hours of seat time, and DSPS publishes no question count, so there is no per question figure anybody can honestly give you. What you can measure is how long it takes you to find a rule.

The Wisconsin half is not in question form here

The exam pages introduce the reference list with the sentence "The exam will cover information listed below," and two of the three items on that list are Wisconsin's own chapters.

We do not publish question sets on SPS 305 or SPS 316. What we publish is a plain reading of them: the credential rules, the amendment subject index and what the 2026 rule change did.

Both chapters are public law, so print them, punch them and put them in the binder. That is the cheapest advantage in this exam and it is the one most candidates skip.

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: Table 305.02 sets a $35 application fee and a $30 state examination fee, Pearson VUE publishes $95.00 per electrician exam, and SPS 305.02 says those fees are not refundable.

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.

We are not a school, a training program, an approved course, a continuing education provider or an examination vendor, and nothing here is approved or endorsed by the Wisconsin Department of Safety and Professional Services or by Pearson VUE. We are independent of both, and nothing on this site earns a Wisconsin continuing education hour, because SPS 305.08 says only courses approved in writing by the department count.

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 Wisconsin 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 account and no subscription.

Which NEC edition are the questions written on?

The 2026 numbering. The DSPS exam pages still name the 2017 edition, and DSPS expects its exam updates to be completed by October 1, 2026, so this page names the sixteen sets where a section number changed address.

Which code book should I practice with?

The edition the DSPS exam page for your credential names on the day you book. That was the 2017 edition on September 7, 2026, with updates to the 2023 edition expected to be completed by October 1.

Should I practice with tabs in my book?

Only permanent ones. Tabs that came with a bound code book are acceptable and three ring paper dividers with tabs are permitted, while removable tabs, sticky notes, paperclips and loose papers are not allowed in the room.

Can I take my practice papers into the exam?

No. The DSPS permitted materials list says practice or previous exams do not qualify as notes and are not allowed. Printed notes are allowed if they are three hole punched and in the binder.

How many questions should I answer per minute?

There is no honest figure. Pearson VUE gives four hours of seat time and DSPS publishes no question count for any Wisconsin electrician exam, so time your lookups instead.

Do these count as continuing education?

No. SPS 305.08 says only courses, programs and seminars approved in writing by the department may be used for continuing education credit, and we are not a provider.

Put it to the test

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.

Start the free practice testSee the $79 question bank

All questions here are original. They are not actual exam questions, and no question bank can promise you a pass.

What this page cites

If your book is the other edition

The 2023 to 2026 section crosswalk maps every section that moved, both directions, $29 once.

NEC and National Electrical Code are registered trademarks of the National Fire Protection Association.

Trojan Digital Marketing is an independent company. We are not affiliated with, endorsed by, or sponsored by NFPA, the Department of Safety and Professional Services, Pearson VUE, or any licensing authority, school or union.

The Wisconsin examinations are open book, and the allowance is a generous one: the code book or handbook, one binder holding SPS 305, SPS 316 and printed notes, and up to two bound reference books. The DSPS exam pages still name the 2017 National Electrical Code, DSPS expects its exam updates to be completed by 1 October 2026, and the trade press reports the questions changing from that date. The field code, SPS 316, went to the 2023 edition on 1 September 2026, so for one month the book you work to and the book you test on are different.

All practice questions are original. They are not actual exam questions.

Built and maintained by Jeff Clerisier, Trojan Digital Marketing.

Every rule here is cited to the section it comes from, and corrections are logged in public with the date. This is study material rather than electrical advice, and it does not replace your own code book or your inspector.

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