IBEW Aptitude Test: Free Practice & ETA vs. GAN Guide
First find out which exam your apprenticeship program actually uses. Then practice the right skills without a signup, paywall, or pretend passing-score prediction.
Which electrical apprenticeship aptitude test will you take?
There is no single test used by every IBEW-affiliated apprenticeship program. Some local training centers use the electrical training ALLIANCE (ETA), formerly NJATC, algebra-and-reading test. Others explicitly use the GAN Aptitude Battery, which can include arithmetic, numerical reasoning, reading, paper folding, and mechanical reasoning. Local policies, test providers, scoring, and application steps can change.
That is not a minor distinction. Preparing only for advanced algebra when your local uses numerical reasoning and spatial questions is a poor use of study time. Preparing only for gear puzzles when your local uses ETA algebra is no better. Begin with the verified local examples, confirm details directly with your training center, and use the matching practice track below.
We checked official first-party materials from the electrical training ALLIANCE, GAN Human Resources, and named regional JATCs. Unconfirmed details are labeled instead of filled in with guesses.
ETA/NJATC vs. GAN: the difference that matters
| Question | ETA / NJATC-style | GAN at verified locals |
|---|---|---|
| Main subjects | Algebra & Functions; Reading Comprehension | At Phoenix and Boston: reading, numerical computation/reasoning, paper folding and mechanical reasoning; Minneapolis additionally lists problem solving |
| Published section lengths | 33 algebra items / 46 minutes; 36 reading items / 51 minutes, with a short break | No one universal timing or item-count schedule established by these local sources; LA publishes 2 hours 20 minutes total |
| Calculators | Not permitted under published ETA instructions | Not permitted where explicitly stated, including Minneapolis; confirm each center |
| Score and selection | Qualifying score leads to an interview under the ETA sample application process; local cutoffs vary | May be weighted in applicant rankings; Phoenix and current Boston state no minimum cut score |
| Retakes | ETA says 90 days before a first retake and refers separately to a six-month rule following subsequent retakes | Set locally; there is no verified universal GAN retake interval |
Sources: ETA application guidance; Phoenix JATC; Boston current applicant guidance; Minneapolis JATC; Los Angeles ETI.
Check your local JATC before picking a study track
This is a curated sample, not a nationwide directory. Choose a listed center in the practice setup for its current sourced summary. Your chosen apprenticeship specialty matters, too. A local may use different testing rules for inside wireman, residential, or low-voltage programs. These entries were checked on October 17, 2026; training-center websites are the source of truth if anything changes.
| Training center | Published test/route | Critical detail | Official source |
|---|---|---|---|
| Phoenix Electrical JATC · AZ | GAN | Five named areas; no minimum score; PEF replaces interview | Verify at PEJATC |
| Minneapolis Electrical JATC · MN | GAN | Six named areas; PEF and recommendation considered; up-to-one-year list | Verify at Minneapolis |
| Boston JATC · MA | GAN (current) | Five named areas; current policy says no minimum; old test page conflicts | Verify at Boston |
| Electrical Training Institute / Local 11 · CA | Five-topic test; GAN study material linked | 2 h 20 min total; PEF up to 40% of final score | Verify at ETI |
| NECA-IBEW Electrical Training Center / Local 48 · OR | Algebra + reading (ETA-style) | Interview after qualifying; accepts certain prior scores of 5+ | Verify at NIETC |
| Puget Sound Electrical JATC / Local 46 · WA | Online algebra + reading (ETA-style) | Interview determines ranked placement; up-to-two-year list | Verify at Puget Sound |
| Electrical Training Academy Knoxville / Local 760 · TN | Algebra + reading (ETA-style) | Publishes 4 as interview-qualifying score; 90-day initial retest | Verify at Knoxville |
| Waterloo / Mason City JATC / Local 288 · IA | Algebra + reading (ETA-style) | Publishes 4 cutoff; says first retest after at least three months | Verify at Waterloo |
| IBEW-NECA Technical Institute / Local 134 · IL | Exam provider not stated | Aptitude test plus PEF; don't assume vendor from the form alone | Verify at IN-Tech |
| JATC Local 26 / Washington, DC area · MD | Exam provider not expressly stated | Current 2027 application uses GAN PEF in place of interview and links GAN study guide; older material described an interview | Verify at JATC 26 |
Important research correction: Boston's old general aptitude test description still discusses a historical high/medium/low model and a motor-coordination component. Its current applicant page instead identifies a five-part GAN battery, says there is no minimum, and excludes pegboard testing. Use the current instructions. Local 26's 2027 application page likewise supersedes the interview descriptions in older materials.
Ask your training center these seven questions
Copy this message, insert your program name, and send it to the official admissions contact before committing to a study schedule.
Hello, I'm preparing an application for your [apprenticeship program and specialty]. Could you confirm (1) which aptitude exam and provider you currently use; (2) the test subjects and official section timing; (3) whether calculators are allowed; (4) any qualifying score or ranking method; (5) whether you use an interview, a Personal Experience Form, or both; (6) retake rules; and (7) how to request testing accommodations? Please also let me know where to find your latest official prep guidance. Thank you.
Interactive practice lab
Take the free IBEW aptitude-test practice quiz
Start with a 12-question diagnostic or choose a section-length ETA rehearsal (33 algebra questions in 46 minutes; 36 reading questions in 51 minutes). GAN-oriented practice includes 30 questions across five topics; its optional timer is a TSNET practice setting, not a claim about official GAN timing. Untimed mode gives explanations after each answer. Timed mode waits until you finish.
Your practice results
How to prepare without wasting your time
Start with your local's test type, not the word “IBEW” on a prep product. The ETA practice questions measure algebra and understanding of written passages. The GAN-style questions are modeled on domains published by several current JATCs, but an individual program may choose additional or different sections. You do not need prior electrical trade knowledge to attempt the ETA assessment, according to the official applicant guide.
ETA study priorities
- Practice solving linear equations and distributing negatives.
- Review expressions, function tables, graphs, and number patterns.
- Read passages carefully; answer from what the passage actually says.
- Try 33 algebra items in 46 minutes and 36 reading items in 51 minutes after untimed study.
Practice without a calculator; the published ETA assessment prohibits it.
GAN-oriented study priorities
- Improve fraction, decimal, and whole-number accuracy.
- Practice numerical sequences and short arithmetic word problems.
- Visualize reflections and paper folds using diagrams.
- Review simple gear, pulley, and lever principles.
Check your local's exact list. Minneapolis names a problem-solving section; Phoenix and Boston publish five areas.
A realistic seven-day study reset
If you struggle with the math prerequisite rather than the exam itself, check whether your program accepts the ETA Tech Math alternative or an approved course. Phoenix, for example, describes a Tech Math option. Acceptability is program-specific; buying a generic course does not guarantee that the training center will count it.
Scoring, test-day rules, and retakes: what not to assume
Is a 4 out of 9 a passing score?
Not everywhere. Knoxville and Waterloo explicitly publish 4 as their local qualifying score. Portland recognizes certain scores of 5 or above transferred from another JATC. Phoenix and current Boston explicitly say there is no minimum passing score for their GAN-based selections. A short online practice percentage cannot be translated into an official stanine, percentile, or acceptance probability.
What about the 90-day retake rule?
The ETA applicant guidance says a full 90 days must pass before retaking the test and separately says the six-month rule remains in effect after subsequent retakes. Locals may also operate distinct application cycles or additional conditions. Read your own local's policy before scheduling another test, including whether taking the test at another center affects eligibility.
Can you request accommodations?
Yes, testing accommodations may be available. The ETA explicitly instructs candidates to notify the JATC before or as soon as testing is scheduled; test-day requests cannot necessarily be arranged immediately. Ask your program which documentation and deadline apply. Do not send medical documents to TSNET. Read the official ETA accommodation guidance.
What should you bring?
For ETA testing, the official instructions specify photo ID, with pencils/materials supplied and no calculator allowed. GAN center policies vary; Minneapolis also requires a photo ID and prohibits calculators. Your admission email is more authoritative than any generic checklist: follow its arrival time, identification requirements, prohibited items, and accommodation instructions.
After the aptitude test: interviews, PEFs, and ranked lists
A qualifying ETA result does not guarantee an apprenticeship. The national ETA description anticipates an oral interview followed by a ranked eligibility list; local centers may have different ranking durations. Portland describes an interview-driven ranked list. Knoxville says its interview rank lasts 12 months, while Puget Sound describes up to two years. The right timeline is the one your program publishes.
GAN applicants should not assume an interview. Phoenix explicitly replaces interviews with the Personal Experience Form (PEF). Minneapolis includes PEF information and recommendation evidence in selection. Boston's current application uses the GAN assessment and PEF. The Local 26 page for the 2027 cycle likewise states that its GAN PEF replaces the interview. Treat a PEF like a serious application: keep transcripts, work verification, military records, and recommendations organized, and follow the local's rules about proof.
What if you are not selected?
Read the notice and ask your JATC when you can reapply or improve your application. While waiting, options may include a recognized math prerequisite course, a legitimate pre-apprenticeship, construction-related experience, or a nonunion registered apprenticeship. A campus-based electrical program might also make sense for some career plans, but it does not replace a union apprenticeship application or guarantee admission, credit, licensing, or job placement.
For a broader overview, see how to get an apprenticeship, how to become an electrician, and our general mechanical aptitude practice test.
Considering electrical training outside a union apprenticeship?
If your local isn't accepting applications, you need qualifying math, or you want to explore nonunion or campus programs, compare options on their own merits: hands-on lab hours, employer partnerships, credential recognition, total tuition, schedules, and whether the training actually supports your local licensing path. Explore electrician school and training options without assuming they are equivalent to direct union admission.
Separate process: Submitting an information request through a school-search widget contacts educational providers; it does not submit an IBEW/NECA/JATC apprenticeship application. Apply to your JATC directly.
IBEW aptitude-test FAQ
Are the IBEW and NJATC aptitude tests the same?
“NJATC test” commonly refers to the algebra-and-reading battery described by the electrical training ALLIANCE. But not every IBEW-affiliated apprenticeship program uses that assessment. Confirm the battery with your specific training center.
Is the GAN test easier than the ETA test?
They emphasize different skills. ETA's published battery is algebra and reading; current GAN-using locals also publish arithmetic, spatial, and mechanical areas. There is no reliable evidence that one is universally easier for every applicant.
Can I use a calculator on the IBEW aptitude test?
Not on the ETA battery under the official published instructions. Minneapolis also prohibits calculators on its GAN battery. Check with your local if you are taking a different assessment.
What is the passing score?
It depends on the program. Knoxville and Waterloo publish 4 as their threshold, Portland recognizes certain previous scores of 5 or above, and Phoenix and current Boston state no minimum. A practice percentage is not a reliable official score prediction.
Does GAN always include algebra?
No. Boston's current GAN application description emphasizes numerical computation and reasoning, and its separate legacy page says no algebra. Check the current program-specific test list before deciding what to study.
How soon can I retake the exam?
ETA's published policy gives 90 days before a first retake and references six months following subsequent retakes. Local programs can have additional requirements or selection cycles. Never assume a universal rule for GAN.
Does passing guarantee an apprenticeship?
No. Qualifying may advance your application to an interview or ranking process; available positions, PEF scoring, and local selection procedures still matter.
Is this an official IBEW aptitude test?
No. This is independent educational practice with original questions. It is not produced, graded, approved, or endorsed by IBEW, NECA, the electrical training ALLIANCE, GAN, or any JATC.
Official sources and policy verification
Checked October 17, 2026. Program policies can change without notice; visit the official pages before applying or sitting an exam.
- electrical training ALLIANCE: Applying for Apprenticeship (ETA item counts, time, retakes, accommodations, test day)
- electrical training ALLIANCE: Preparing for the Test (published sample skill areas)
- GAN Human Resources: Aptitude Test (provider overview; not local-specific sections or limits)
- Phoenix Electrical JATC: How to Apply
- Minneapolis Electrical JATC: Applicants
- Boston JATC: Interested in Applying
- Electrical Training Institute, Los Angeles: Inside Wireman
- NECA-IBEW Electrical Training Center, Portland: FAQ
- Puget Sound Electrical JATC: What is Apprenticeship?
- Electrical Training Academy Knoxville: Preparing for the Test
- Waterloo & Mason City Electrical JATC: Aptitude Test
- IBEW-NECA Technical Institute, Chicago: FAQs
- Local 26 JATC: 2027 Inside Wireman Application
Editorial review: original question keys and mathematical explanations are tested separately from source-policy verification. The questions are examples of the subject areas, not a validated psychometric test or a representation of proprietary items.