100+ Free CABT Practice Questions

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Question 1

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Using Ohm's Law, what is the current flowing through a 100-ohm resistor connected to a 12-volt battery?

0.12 A

1.2 A

12 A

1200 A

to track

2026 Statistics

Key Facts: CABT Exam

100

Total Questions

ACI CABT exam page

2 hrs

Exam Time

ACI candidate handbook

$220+

Exam Fee

ACI 2026 fee schedule

24%

Problem Solving

Content outline (heaviest)

Year-round

Availability

Online proctored

5 yrs

Certification Duration

Non-renewable

The ACI CABT exam uses 100 multiple-choice questions with a 2-hour time limit and $220-$270 fee. Content: Reasoning/Problem Solving (24%), Medical Devices (23%), Safety (16%), Electronics (14%), Healthcare IT (13%), Anatomy (10%). Available year-round online (unlike other ACI exams). Open to high school juniors. 5-year non-renewable certification; must retake or advance to CBET/CRES.

Sample CABT Practice Questions

Try these sample questions to test your CABT exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Using Ohm's Law, what is the current flowing through a 100-ohm resistor connected to a 12-volt battery?

A.0.12 A

B.1.2 A

C.12 A

D.1200 A

Explanation: Ohm's Law states V = I × R, so I = V / R = 12 V / 100 Ω = 0.12 A. This is a fundamental calculation in biomedical technology. Understanding the relationship between voltage, current, and resistance is essential for troubleshooting medical equipment circuits.

2A patient monitoring system displays a heart rate of 72 beats per minute. How many beats would occur in 5 minutes?

A.144

B.360

C.720

D.36

Explanation: Multiplying the heart rate (72 beats/minute) by 5 minutes gives 72 × 5 = 360 beats. Unit conversion problems like this are common in biomedical technology, where technicians must verify that equipment readings make sense over different time intervals.

3A biomedical technician reads a graph showing equipment failures over 12 months. Month 7 shows a sharp spike to 15 failures while all other months average 3. What is the BEST first action?

A.Ignore the spike since it is only one month

B.Investigate what changed in month 7 that could explain the increase

C.Replace all equipment used in month 7

D.Assume the data was recorded incorrectly

Explanation: When a graph shows an unusual spike, the first step is to investigate what changed during that time period. Possible causes could include a new staff member, a software update, or a batch of faulty replacement parts. Ignoring data anomalies or assuming errors without investigation is poor troubleshooting practice.

4A service manual troubleshooting flowchart says: 'If device powers on, check display. If display is blank, check cable connection.' The device powers on but the display is blank. What should you do next?

A.Replace the entire device

B.Check the cable connection

C.Call the manufacturer immediately

D.Turn the device off and on again

Explanation: Following the flowchart logic step by step, the device powers on (yes), the display is blank (yes), so the next directed step is to check the cable connection. Service manuals provide systematic troubleshooting procedures that should be followed in order before escalating to more complex or costly actions.

5A table shows that Infusion Pump Model A has a failure rate of 2.1%, Model B has 4.7%, and Model C has 1.3%. Which model is the MOST reliable based on this data?

A.Model A

B.Model B

C.Model C

D.All models are equally reliable

Explanation: Model C has the lowest failure rate at 1.3%, making it the most reliable of the three options. Biomedical technicians frequently use tabular data to compare equipment performance metrics, and lower failure rates indicate higher reliability. This type of analysis supports evidence-based equipment purchasing decisions.

6Convert 2,500 milliliters to liters.

A.0.25 L

B.2.5 L

C.25 L

D.250 L

Explanation: There are 1,000 milliliters in one liter, so 2,500 mL ÷ 1,000 = 2.5 L. Metric conversions are essential in biomedical technology since medical equipment specifications, fluid volumes, and drug dosages all use the metric system.

7A biomedical technician is troubleshooting a patient monitor that intermittently loses its display. Which troubleshooting approach is MOST systematic?

A.Replace the most expensive component first

B.Start by checking the simplest and most likely causes, then work toward more complex ones

C.Disassemble the entire monitor immediately

D.Ask another technician to guess the problem

Explanation: Systematic troubleshooting starts with the simplest and most likely causes — such as loose connections, power cables, or display settings — before moving to complex internal components. This approach saves time, reduces costs, and avoids unnecessary disassembly. It follows the standard troubleshooting logic taught in biomedical technology programs.

8A graph shows temperature probe accuracy over time. The readings drift upward by 0.5°F every month. After 6 months without calibration, how far off will the probe be?

A.0.5°F

B.1.5°F

C.3.0°F

D.6.0°F

Explanation: If the probe drifts 0.5°F per month, after 6 months the total drift is 0.5 × 6 = 3.0°F. This demonstrates why regular calibration schedules are important for medical equipment — even small drifts accumulate over time and can affect patient care accuracy.

9A service manual states: 'Replace the fuse if resistance reads OL (open line) on a multimeter.' A technician measures the fuse and gets an OL reading. What does this indicate?

A.The fuse is functioning normally

B.The fuse is blown and needs replacement

C.The multimeter battery is dead

D.The fuse has too much current flowing through it

Explanation: An OL (over limit or open line) reading on a multimeter's resistance setting indicates infinite resistance, meaning there is no electrical continuity. For a fuse, this means the internal conductor has melted (blown), breaking the circuit. A good fuse would show very low resistance (near zero ohms), confirming continuity.

10A technician must convert a device's power consumption from 500 watts to kilowatts. What is the correct conversion?

A.0.5 kW

B.5 kW

C.50 kW

D.5000 kW

Explanation: There are 1,000 watts in one kilowatt, so 500 W ÷ 1,000 = 0.5 kW. Understanding power unit conversions is important when calculating electrical loads for medical equipment rooms and ensuring circuits are not overloaded.

About the CABT Exam

The CABT is an entry-level credential for individuals entering biomedical equipment technology. The exam covers reasoning and problem solving (24%), medical devices and patient care (23%), safety in healthcare (16%), electronics fundamentals (14%), healthcare IT (13%), and anatomy and physiology (10%). Available year-round as an online proctored exam. Open to high school juniors and above.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

Criterion-referenced (modified Angoff, not disclosed)

Exam Fee

$220–$270 (ACI/AAMI)

CABT Exam Content Outline

24%

Reasoning and Problem Solving

Unit conversions, metric system, graph/table interpretation, flowcharts, service manuals, troubleshooting logic

23%

Medical Devices and Patient Care

Diagnostic equipment, patient monitoring (NIBP, SpO2, ECG), infusion pumps, defibrillators, test equipment (multimeter)

16%

Safety in Healthcare

LOTO, SDS, gas color coding, electrical safety, microshock/macroshock, infection control, PPE

14%

Electronics Fundamentals

Ohm's law, AC/DC circuits, capacitors, transformers, fuses, grounding, ESD

13%

Healthcare Information Technology

Computer architecture, USB/network connectors, LAN/WAN, HIPAA, network security, firewalls

10%

Anatomy and Physiology

Respiratory, nervous, circulatory systems; heart, lungs, kidneys, brain function

How to Pass the CABT Exam

What You Need to Know

Passing score: Criterion-referenced (modified Angoff, not disclosed)
Exam length: 100 questions
Time limit: 2 hours
Exam fee: $220–$270

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

CABT Study Tips from Top Performers

1Reasoning/Problem Solving (24%) and Medical Devices (23%) are the two largest domains — practice interpreting graphs, flowcharts, and troubleshooting scenarios

2Know basic medical devices: what a pulse oximeter measures (SpO2), how a defibrillator works, infusion pump safety features

3Master Ohm's Law (V=IR) and basic circuit concepts — electronics is 14% of the exam

4Healthcare safety (16%): know LOTO procedures, microshock vs macroshock thresholds, and universal precautions

Frequently Asked Questions

Who can take the CABT exam?

Anyone who is at least a junior in high school (11th grade). No degree or work experience required. This is an entry-level certification.

How is the CABT different from the CBET?

CABT is entry-level for those entering the field; CBET is the full professional certification requiring 2-4 years BMET experience. CABT is a stepping stone to CBET.

Is the CABT available year-round?

Yes. Unlike CBET/CRES/CHTM (May/November windows only), the CABT is available year-round as an online proctored exam. Must be taken within 6 months of purchase.

Does the CABT certification expire?

Yes, after 5 years. It is non-renewable — you must retake the exam or advance to CBET/CRES certification.