- The ETA battery has 69 questions in 97 timed minutes: 33 Algebra and Functions items in 46 minutes and 36 Reading Comprehension items in 51 minutes.
- No calculator is allowed and no prior electrical knowledge is required - the test measures aptitude, not trade experience.
- Guessing carries no penalty, so every one of the 69 items should get an answer before time runs out.
- Results land with your local JATC in two to four weeks; a qualifying result moves you to an oral interview.
What This Cheat Sheet Covers
This page is a one-stop, print-friendly reference for the Electrical Training Alliance Aptitude Test (ETA) - the aptitude battery used by IBEW/NECA apprenticeship sponsors and administered locally by Joint Apprenticeship and Training Committees (JATCs). It is not a renewable professional certification and it is not the same as any other credential that happens to share the "ETA" abbreviation. If you want the full walkthrough behind any of these facts, pair this cheat sheet with the ETA Study Guide 2026 and the ETA Exam Domains Guide.
Use this article the night before your test, during a lunch-break review, or as the final checklist before you walk into the JATC test center. Everything below reflects the actual structure of the exam: two timed sections, no calculator, and a qualifying/nonqualifying outcome rather than a numeric score you can shop around.
Exam Format at a Glance
The ETA is a fixed-format, multiple-choice battery. There is no adaptive difficulty and no essay component - just 69 questions split across two timed sections with a short break in between.
| Section | Questions | Time Allowed |
|---|---|---|
| Algebra and Functions | 33 | 46 minutes |
| Reading Comprehension | 36 | 51 minutes |
| Total (excluding break/check-in) | 69 | 97 minutes |
Two operational details matter more than most applicants realize: calculators are prohibited on the Algebra and Functions section, and guessing is not penalized. That combination changes how you should pace yourself - mental math and estimation skills matter as much as knowing the formulas, and you should never leave a bubble blank. For a deeper look at how difficult candidates actually find each section, see How Hard Is the ETA Exam?
Domain 1: Algebra and Functions
Algebra and Functions - 33 Questions, 46 Minutes
This section measures how comfortably you manipulate numbers and symbols without a calculator. It rewards speed built from repetition, not memorized trivia.
- Solving linear equations and simple inequalities for an unknown variable
- Working with fractions, decimals, ratios, and proportions by hand
- Evaluating and simplifying algebraic expressions, including exponents
- Interpreting functions, graphs, and word-problem setups translated into equations
- Unit conversions and basic order-of-operations accuracy under time pressure
Because no prior electrical knowledge is required, none of these questions test trade concepts like Ohm's Law or wiring diagrams - this is general math reasoning. The challenge is volume and time: 33 questions in 46 minutes is roughly 84 seconds per item, and some questions will take longer than others. Practicing mental arithmetic and quick fraction-to-decimal conversions pays off more than memorizing formulas you won't be tested on directly. A full topic-by-topic breakdown lives in the ETA Exam Domains Guide.
Domain 2: Reading Comprehension
Reading Comprehension - 36 Questions, 51 Minutes
This section checks whether you can read a passage, extract the intended meaning, and answer questions strictly based on the text - a skill directly tied to following written instructions, codes, and safety materials on the job.
- Identifying the main idea and supporting details of a passage
- Drawing reasonable inferences without adding outside assumptions
- Following sequences of instructions or procedures described in text
- Understanding vocabulary in context rather than relying on outside definitions
- Distinguishing between what a passage states directly and what it implies
At 36 questions in 51 minutes, you get about 85 seconds per item, but reading passages will eat into that unevenly - expect to spend more time on the passage itself and less on straightforward recall questions. The best preparation is timed reading practice, not vocabulary flashcards alone, since the test is asking you to reason from a specific text rather than general knowledge.
Key Takeaway
Both sections are pass/fail by design - there's no partial credit for "showing your work," so accuracy and pacing matter more than elegant problem-solving. Practice both domains under real time limits, not just topic review.
Eligibility, Registration & Logistics
The ETA is administered through local JATCs tied to IBEW/NECA apprenticeship programs, so exact scheduling and paperwork can vary by local - but the baseline prerequisites are consistent enough to plan around:
- One year of high-school-level algebra (or equivalent coursework)
- High school completion or an accepted equivalent, such as a GED
- Official transcripts submitted to the sponsoring JATC
- Any additional local age or work requirements set by your JATC
Because requirements and application windows are set locally, always confirm specifics with your JATC before test day. The ETA Requirements guide walks through eligibility documentation in more detail, and the ETA Exam Dates guide covers how testing windows and deadlines typically work. If you're weighing whether the time and paperwork investment makes sense for your career path, Is the ETA Certification Worth It? and the ETA Salary Guide are useful companion reads, and the ETA Certification Cost breakdown explains the fee mechanics tied to your local program.
Scoring, Retakes & Interview Eligibility
Unlike exams that hand back a numeric score, the ETA produces a qualifying or nonqualifying result. A qualifying result is what moves an applicant forward to an oral interview with the local JATC - the next real gate in the apprenticeship selection process. Details on how that threshold works are covered in the ETA Passing Score guide.
- Turnaround: Results typically reach your local JATC in two to four weeks.
- First retest: Requires a 90-day waiting period.
- Later retakes: Follow a six-month rule between attempts.
- Interview eligibility list: Stays active for two years after a qualifying result.
That two-year window is significant: a qualifying score doesn't expire quickly, but it also doesn't guarantee an interview slot or apprenticeship placement - it places you on a list the JATC works through based on local hiring needs. If you're curious how these outcomes trend at scale, the ETA Pass Rate breakdown discusses what the available data actually shows without inventing numbers that don't exist for this specific test.
Key Takeaway
Because a first-attempt fail costs you 90 days minimum, it is worth delaying your test date by a week or two to fix a known weak spot rather than rushing in underprepared.
One-Week Rapid Review Timeline
If you only have a handful of days before your scheduled test, allocate them across the two domains proportionally to their weight and your own weak points - not evenly by default.
Algebra and Functions Drills
- Timed sets of linear equations and fraction/decimal conversion problems, no calculator
- Word-problem translation practice: turning sentences into equations quickly
Reading Comprehension Drills
- Timed passages with main-idea and inference questions
- Practice separating what's stated from what's merely implied
Full-Length Timed Practice
- Simulate the full 97-minute battery, including the break, using realistic practice questions
- Review every missed item and log the underlying skill, not just the wrong answer
Light Review & Logistics
- Skim formulas and vocabulary notes; avoid new material the day before
- Confirm test center address, arrival time, and required documents
This short cycle works because it respects the actual structure of the exam - two distinct skill sets, a hard time limit, and no calculator crutch. For a longer runway, the full ETA Study Guide 2026 lays out a more complete multi-week plan.
Test-Day Checklist
- Arrive early - plan for about three hours total at the test center
- Bring required identification and any documents your JATC requested (no calculator, since they're prohibited)
- Pace yourself against the clock: roughly 84 seconds per Algebra question, roughly 85 seconds per Reading Comprehension question
- Answer every question - guessing is not penalized, so never leave an item blank
- Use the short break between sections to reset mentally rather than review answers
For readers still getting oriented on what this credential actually is and who administers it, the companion primers What Is ETA?, ETA Meaning, and What Does ETA Stand For? cover the basics, while ETA Training and ETA Jobs look at what comes after a qualifying result. You can also run a full timed simulation any time at the main practice test platform to see exactly how the pacing feels before your real appointment.
Frequently Asked Questions
No. The Electrical Training Alliance Aptitude Test is a one-time apprenticeship selection tool used by IBEW/NECA JATCs, not a renewable certification with continuing education requirements.
No, calculators are prohibited on the entire test. You'll need to be comfortable with mental math and manual calculation for all 33 algebra questions.
No prior electrical knowledge is required. The test measures general algebra/function skills and reading comprehension, not trade-specific content.
You must wait 90 days before your first retest. Subsequent retakes follow a six-month waiting period between attempts.
A qualifying result keeps you on the interview eligibility list for two years, after which you would need to test again to remain eligible.