CBET Study Guide 2026

Everything you need to pass the CBET exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.

CBET exam key facts

  • The CBET exam has 165 multiple choice questions. Source
  • The CBET exam is a three-hour closed-book exam with no breaks allowed. Source
  • The CBET exam is scored against a predetermined cut score set with the modified Angoff method, not relative to other candidates. Source
  • The CBET exam costs $410 for AAMI members and $460 for non-members in 2026, rising to $425 and $480 in 2027. Source
  • CBET candidates must wait at least 60 days to retake, may test no more than three times in two years, and must wait one year after a third failure. Source
  • The CBET certification follows a three-year recertification cycle. Source
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📋 CBET Exam Format at a Glance

165
Questions
180 min
Time Limit
68.00%
Passing Score

📚 CBET Topics to Study (48)

✍️ Sample CBET Questions & Answers

1. What does a 'risk-based PM program' use to prioritize maintenance frequency?
✓ Device criticality, failure consequences, and maintenance history

Risk-based programs assign higher PM priority to life-sustaining or high-risk devices and extend intervals for low-risk equipment with good histories.

2. A hospital laboratory centrifuge vibrates excessively during operation. The MOST likely cause is:
✓ An unbalanced load due to improperly paired or misplaced samples

Centrifuges must have balanced loads; unequal or improperly positioned samples create centrifugal force imbalance causing severe vibration.

3. A CT scanner's X-ray tube requires replacement. Which parameter most directly indicates tube wear?
✓ Total accumulated milliampere-seconds (mAs) / heat units

Accumulated heat units or mAs track the thermal stress on the anode; manufacturers define tube replacement thresholds based on this metric.

4. What is the function of a network firewall between the medical device network and the hospital's general network?
✓ To control and filter network traffic based on security rules

A firewall controls and filters network traffic between segments based on security rules, protecting medical devices from unauthorized access.

5. A flash sterilization cycle (immediate-use steam sterilization) at 132°C in a pre-vacuum sterilizer requires a minimum exposure time of:
✓ 4 minutes

AAMI ST79 specifies a minimum of 4 minutes at 132°C for immediate-use steam sterilization (flash sterilization) in a pre-vacuum sterilizer with lumened devices.

6. A patient reports receiving a mild tingling sensation when touching the bed rail while connected to a patient monitor. No alarm has triggered. What is the appropriate immediate action?
✓ Immediately disconnect the patient from the monitor, remove the device from service, and perform electrical safety testing

A tingling sensation indicates stray electrical current flowing through the patient, which is a potentially dangerous leakage current situation.

🎯 Free CBET Practice Tests

📖 CBET Guides & Articles

Your CBET Study Path
1. Learn with Flashcards → 2. Drill Practice Tests → 3. Take the Full Exam Simulation

What Practice Test Geeks adds beyond an AI chat for CBET

An AI chatbot can quiz you, but it can't reproduce the exam conditions or keep your record. Here you get:

  • A timed, full-length CBET mock exam — 165 questions in 210 minutes with a 68% pass mark, modeled on the official exam's question count and time limit, followed by a score report broken down by exam domain.
  • A fixed CBET question bank: the same test every attempt, so your score is comparable from one try to the next instead of changing with every regenerated quiz.
  • Progress saved on your device: completed tests, scores and missed questions stay in My Progress, so you can retake only what you got wrong.
  • A printable CBET cheat sheet you can print or save as a PDF.
  • CBET flashcards built from the same question bank.
  • Free CBET practice tests with the correct answer shown after each question.
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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

  1. aami.org — Eligibility, exam format, time limit, test delivery, fees, passing score, retake fee, retake policy, score validity, exam dates · verified Oct 2026