Electronics Technician (ETA) Practice Test

The Electronics Technician (ETA) Practice Test is a free beginner-level, 15-minute skill test from Science of Apps. It tests readiness for ETA International's Associate Certified Electronics Technician (CETa) exam — DC and AC electrical fundamentals, electronic components and circuits, and test equipment, digital basics and workplace safety — written to ETA International's CET competencies, standard electronics textbooks, ESD control standards and electrical safety rules for 2026. Score 70% or more on its 15 questions to earn a verifiable Electronics Technician (ETA) Readiness certificate (SOA-ETET). Every question is based on published standards and research — including Lessons in Electric Circuits (textbook) (All About Circuits), College Physics 2e: Circuits, bioelectricity and DC instruments (OpenStax (Rice University)), College Physics 2e (OpenStax (Rice University)) — and each answer is explained with its source.

Yes. Science of Apps has a free Electronics Technician (ETA) Practice Test built on the current ETA International exam outline for 2026 and 2027. It covers DC and AC fundamentals, components and circuits and test equipment, digital basics and safety, scores you instantly and issues a verifiable certificate.

Read the three skill areas on this page, then take the 15-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Electronics Technician (ETA) Readiness certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: Lessons in Electric Circuits (textbook) (All About Circuits); College Physics 2e: Circuits, bioelectricity and DC instruments (OpenStax (Rice University)); College Physics 2e (OpenStax (Rice University)); ESD Association: ANSI/ESD S20.20 electrostatic discharge control (EOS/ESD Association); NFPA 70E: Electrical safety in the workplace (NFPA); Electrical safety (OSHA). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Three skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: DC and AC Fundamentals (Ohm's law and power, Series and parallel and AC quantities); Components and Circuits (Passive components, Semiconductors and Op-amps and power supplies); Test Equipment, Digital Basics and Safety (Meters and oscilloscopes, Logic and number systems and Safety and soldering). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Electronics technician, Electronics or electrical engineering student, Field service or repair technician, Avionics or telecom technician trainee and Maker or hobbyist moving into industry. It suits anyone who wants a quick, verifiable way to show Electronics Technician (ETA) knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The Associate Certified Electronics Technician (CETa) from ETA International is an entry-level credential showing knowledge of basic electronics — DC and AC circuits, components, test equipment, soldering and safety. It is often taken by students and new technicians before a journeyman or specialty CET.

Ohm's law (V = I × R), power (P = V × I), series and parallel resistance, capacitive and inductive reactance trends, RC time constants (τ = R × C), the relationship between frequency and period (f = 1 ÷ T) and RMS of a sine wave (about 0.707 × peak).

No. It is an independent practice test written to the publicly available Electronics Technician (ETA) content outline for 2026 and 2027, for checking your readiness before you book the real exam. Passing earns a Science of Apps certificate rather than the official credential.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

15 questions — 5 from each of 3 skill areas — with a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

We rate it Beginner: no experience needed: fundamentals and clear reasoning. It has 15 scenario questions — 5 from each of 3 skill areas — and a 15-minute limit. You need 70% (11 of 15) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.