Audiometric Technician CAOHC Practice Test

The Audiometric Technician CAOHC Practice Test is a free beginner-level, 15-minute skill test from Science of Apps. Practice for the CAOHC Occupational Hearing Conservationist (audiometric technician) course exam — noise and noise-induced hearing loss, audiometric testing and audiometer calibration, and hearing conservation programmes, hearing protection and OSHA recordkeeping — written to OSHA 29 CFR 1910.95, CAOHC course topics and NIOSH guidance for 2026. Rules are the US OSHA requirements. Score 70% or more on its 15 questions to earn a verifiable Audiometric Technician CAOHC Readiness certificate (SOA-ATC). Every question is based on published standards and research — including 29 CFR 1910.95 Occupational noise exposure (eCFR (OSHA)), Noise and hearing loss prevention (US NIOSH), Council for Accreditation in Occupational Hearing Conservation (Occupational Hearing Conservationist certification) (CAOHC) — and each answer is explained with its source.

Yes. Science of Apps has a free Audiometric Technician CAOHC Practice Test built on the current exam outline for 2026 and 2027. It covers noise and hearing loss, audiometric testing and hearing conservation programmes, 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 Audiometric Technician CAOHC 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: 29 CFR 1910.95 Occupational noise exposure (eCFR (OSHA)); Noise and hearing loss prevention (US NIOSH); Council for Accreditation in Occupational Hearing Conservation (Occupational Hearing Conservationist certification) (CAOHC); Injury and illness recordkeeping (29 CFR 1904) (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: Noise and Hearing Loss (Sound basics, Noise-induced hearing loss and Exposure); Audiometric Testing (Baseline and annual tests, Test procedure and Calibration); Hearing Conservation Programmes (STS and follow-up, Hearing protection and Training and records). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Occupational hearing conservationist (audiometric technician), Occupational health nurse, Safety or industrial hygiene technician, Audiology assistant and Mobile hearing testing technician. It suits anyone who wants a quick, verifiable way to show Audiometric Technician CAOHC knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

The Council for Accreditation in Occupational Hearing Conservation certifies Occupational Hearing Conservationists after a CAOHC-approved course, usually around 20 hours, and an exam. Certified technicians perform workplace hearing tests under the supervision of an audiologist or physician.

Under OSHA, a standard threshold shift (STS) is an average change of 10 dB or more at 2000, 3000 and 4000 Hz in either ear compared with the baseline audiogram. Employers must notify the worker in writing within 21 days and review hearing protection.

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.