CAOHC Practice Test
Updated October 2026Facts verified Oct 18, 2026 against Council for Accreditation in Occupational Hearing Conservation
The CAOHC Certification is the gold standard for Occupational Hearing Conservationists (OHCs). It verifies that you have the knowledge and skills to conduct audiometric testing, fit hearing protection, and educate workers about noise hazards. Successful candidates often combine Online CAOHC Training with hands-on practice to master the CAOHC Hearing Conservation Manual concepts. Practice with the free CAOHC - Council for Accreditation in Occupational Hearing Conservation practice test on PracticeTestGeeks (7 questions with answer explanations).
- The initial COHC certification exam has 50 questions. (Council for Accreditation in Occupational Hearing Conservation)
- The COHC recertification exam has 30 questions. (Council for Accreditation in Occupational Hearing Conservation)
- The initial COHC certification exam has a 75-minute time limit and cannot be paused once started. (Council for Accreditation in Occupational Hearing Conservation)
- The COHC recertification exam has a 45-minute time limit. (Council for Accreditation in Occupational Hearing Conservation)
- Candidates need a score of 70% or higher to pass the CAOHC COHC exam. (Council for Accreditation in Occupational Hearing Conservation)
- CAOHC does not set one national price for the COHC course: registration fees vary by location and Course Director. (Council for Accreditation in Occupational Hearing Conservation)
- There is no fixed COHC retake fee, but the Course Director may charge a fee to proctor an exam retake. (Council for Accreditation in Occupational Hearing Conservation)
- A candidate who fails the COHC exam can retake it twice (three attempts in total), each retake within 30 days, and must retake the COHC course after three failed attempts. (Council for Accreditation in Occupational Hearing Conservation)
- A CAOHC COHC certification is valid for 5 years from the date the candidate completes the course, not the date of the exam. (Council for Accreditation in Occupational Hearing Conservation)
Facts verified Oct 18, 2026 against Council for Accreditation in Occupational Hearing Conservation. Dates that have passed are removed automatically.
CAOHC Exam at a Glance
| Item | Detail | Official source |
|---|---|---|
| Number of questions (Initial certification) | 50 questions | Council for Accreditation in Occupational Hearing Conservation |
| Number of questions (Recertification) | 30 questions | Council for Accreditation in Occupational Hearing Conservation |
| Time limit (Initial certification) | 75 minutes | Council for Accreditation in Occupational Hearing Conservation |
| Time limit (Recertification) | 45 minutes | Council for Accreditation in Occupational Hearing Conservation |
| Passing score | 70% or higher | Council for Accreditation in Occupational Hearing Conservation |
| Exam fee | Course fee varies by location and Course Director | Council for Accreditation in Occupational Hearing Conservation |
| Retake fee | Course Director may charge a proctoring fee | Council for Accreditation in Occupational Hearing Conservation |
| Retake policy | Up to 2 retakes (3 attempts) within 30-day windows; after 3 fails, retake the course | Council for Accreditation in Occupational Hearing Conservation |
| Validity | 5 years from the course completion date | Council for Accreditation in Occupational Hearing Conservation |
| Renewal | Every 5 years by an 8-hour recertification course and exam; extension requests at least 30 days before expiry | Council for Accreditation in Occupational Hearing Conservation |
| Delivery | Online exam in the CAOHC Learning Center on the course's final day, plus practical exams during the course | Council for Accreditation in Occupational Hearing Conservation |
| Eligibility | No prerequisites; complete a CAOHC-approved 20-hour course and pass its exam | Council for Accreditation in Occupational Hearing Conservation |
| Score release | Score shown at once; official results by email within 48 business hours | Council for Accreditation in Occupational Hearing Conservation |
| Registration opens | Register with the Course Director; CAOHC does not manage course registration | Council for Accreditation in Occupational Hearing Conservation |
Facts verified Oct 18, 2026 against Council for Accreditation in Occupational Hearing Conservation. Dates that have passed are removed automatically.
Free CAOHC - Council for Accreditation in Occupational Hearing Conservation Study Tools
Interactive CAOHC - Council for Accreditation in Occupational Hearing Conservation resources on PracticeTestGeeks, free to start:
- CAOHC - Council for Accreditation in Occupational Hearing Conservation flashcards — review key terms and concepts card by card
- CAOHC - Council for Accreditation in Occupational Hearing Conservation study guide — topic-by-topic overview of what the exam covers
- CAOHC - Council for Accreditation in Occupational Hearing Conservation cheat sheet — one-page printable summary for last-minute review
CAOHC Practice Test Questions
Prepare for the CAOHC - Council for Accreditation in Occupational Hearing Conservation exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
CAOHC Flashcards
Quick review for the CAOHC Certification Test
👂What is the primary goal of a CAOHC hearing conservation program?
To prevent noise-induced hearing loss (NIHL) in the workplace through testing and education.
START CAOHC REVIEW🔄How often is CAOHC Recertification required?
Every 5 years. COHCs must complete a CAOHC Recertification Course before expiry.
START CAOHC TEST📊What is a Standard Threshold Shift (STS)?
An average change of 10 dB or more at 2000, 3000, and 4000 Hz in either ear.
PRACTICE CAOHC EXAM📉What is the "Action Level" for noise exposure?
85 decibels (dBA) time-weighted average (TWA) over an 8-hour shift.
TRY CAOHC QUIZ🩺Who supervises the CAOHC Certified Technician?
A CAOHC Professional Supervisor, typically an audiologist or physician.
START CAOHC EXAMCAOHC Study Guide & FAQ
Explore our detailed CAOHC Study Guide designed to answer your most pressing questions about the exam. From understanding the CAOHC Certification Cost to finding the best CAOHC Certification Classes, these tabs provide essential insights for your preparation. Whether you are looking for CAOHC Certification Online Free resources or details on CAOHC Recertification Classes, we have you covered.
The official CAOHC Hearing Conservation Manual is your bible for this exam. Pay close attention to the chapters on audiogram review and standard threshold shifts (STS), as these are frequent topics in CAOHC Test Questions.
CAOHC Score Calculator
Total Scored Questions
150
105 out of 150 correct
70%
Required to Pass: ~70% (Estimated)
Expect to invest between $600 and $1,000 for your initial CAOHC Certification, including the course, exam, and materials. Many employers cover these CAOHC Certification Cost expenses.
CAOHC Career Opportunities
Being CAOHC Certified opens doors to various specialized roles in occupational health.
Occupational Health NurseNurse
s with CAOHC credentials manage hearing conservation programs in clinics and factories.
Audiometric Technician
Dedicated techs perform hearing tests, fit protection, and maintain equipment records.
Mobile
Testing TechTravel to various worksites in mobile units to conduct required annual hearing tests.
Industrial Hygienist
Safety professionals who monitor noise levels and implement engineering controls.
Clinical Audiologist Assistant
Support audiologists in clinical settings with preliminary testing and patient education.
CAOHC Test Day Checklist
- ✓Valid Government ID
- ✓Course Completion Cert
- ✓Exam Confirmation Email
- ✓Review Study Guide
- ✓Arrive 30 Mins Early
- ✓Leave Electronics in Car
- ✓Bring No. 2 Pencils (if paper)
- ✓Positive Attitude!
Ready to Get CAOHC Certified?
Join thousands of occupational health professionals who have passed their exams with our free resources. Start your CAOHC Practice Test now and secure your certification.
CAOHC Recertification Requirements
Renewal Cycle Every
5 Years
Training Req
8-Hour Course
Fee Estimate
~$350
Sign up for CAOHC Recertification Classes at least 3-6 months before your expiration date. Employers often require active CAOHC Certification Verification for employment.
- +Validates your knowledge and skills objectively
- +Increases job market competitiveness
- +Provides structured learning goals
- +Networking opportunities with other certified professionals
- −Study materials can be expensive
- −Exam anxiety can affect performance
- −Requires dedicated preparation time
- −Retake fees apply if you don't pass
Pros and Cons at a Glance
| Pros | Cons |
|---|---|
| Validates your knowledge and skills objectively | Study materials can be expensive |
| Increases job market competitiveness | Exam anxiety can affect performance |
| Provides structured learning goals | Requires dedicated preparation time |
| Networking opportunities with other certified professionals | Retake fees apply if you don't pass |
Sample CAOHC - Council for Accreditation in Occupational Hearing Conservation Practice Questions
Try these questions from our free CAOHC - Council for Accreditation in Occupational Hearing Conservation practice tests. The correct answer and an explanation follow each question.
What is the primary role of a CAOHC-certified Occupational Hearing Conservationist (OHC)?
- A. To diagnose hearing disorders and prescribe treatment
- B. To conduct audiometric testing and assist in administering hearing conservation programs
- C. To perform medical examinations for hearing loss claims
- D. To serve as an OSHA compliance officer
Answer: B. To conduct audiometric testing and assist in administering hearing conservation programs
OHCs conduct pure tone audiometric testing and assist with HCP administration under the supervision of a licensed audiologist or physician.
How many contact hours of continuing education does CAOHC require for OHC recertification over the 5-year cycle?
- A. 10 hours
- B. 20 hours
- C. 40 hours
- D. 50 hours
Answer: B. 20 hours
CAOHC requires OHCs to complete 20 contact hours of approved continuing education during each 5-year recertification period.
How often must a CAOHC-certified OHC renew their certification to remain active?
- A. Every 2 years
- B. Every 3 years
- C. Every 5 years
- D. Every 10 years
Answer: C. Every 5 years
CAOHC certification is valid for 5 years and requires renewal through continuing education and a recertification process.
What is the maximum permissible ambient noise level for the 500 Hz octave band in an audiometric test room according to ANSI S3.1?
- A. 40 dB SPL
- B. 50 dB SPL
- C. 25 dB SPL
- D. 60 dB SPL
Answer: A. 40 dB SPL
ANSI S3.1 specifies maximum permissible ambient noise levels (MPANLs) for audiometric testing rooms. For the 500 Hz octave band, the MPANL is 40 dB SPL when testing to 0 dB HL using supra-aural earphones.
Take the full CAOHC - Council for Accreditation in Occupational Hearing Conservation practice test
CAOHC Questions and Answers
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- caohc.org — Test delivery, score validity, exam format, passing score, retake fee, retake policy, score release, time limit, renewal, eligibility · verified Oct 2026