AET (Aircraft Electronics Technician) Test Prep Guide

Prepare for the NCATT Aircraft Electronics Technician (AET) certification exam with practice tests covering avionics systems, aircraft electrical systems,.

AET (Aircraft Electronics Technician) Test Prep Guide
⏱️2 HoursTime Limit
📝100Questions
70%Pass Rate
💵$175Exam Fee
📊P/FScoring
🖥️MCQFormat
🔄30 DaysRetake Wait
🏢PSICenters
📍ASTMStandard
🩺CertLicensure
💻YesComputer
🎓NoneDegree Required

The AET certification is widely recognized by major aerospace employers and is often a prerequisite for advanced endorsements in radio communication, autonomous navigation systems, and onboard safety equipment. Passing the AET exam validates your technical knowledge against ASTM F35 standards. Try our A&P mechanic practice test.

Candidates looking to maximize their preparation can also use our California CHSPE practice test 2026, which covers the key content areas and question formats used in the official exam.

Aet Aircraft Electronics Technician - Aet

AET Practice Test Questions

Prepare for the AET - Aircraft Electronics Technician exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

AET Exam Flashcards

Click to flip and test your knowledge of aviation electronics.

⚡What does Ohm's Law state regarding voltage, current, and resistance?

Ohm's Law states that Voltage (V) equals Current (I) multiplied by Resistance (R), expressed as V = I x R.

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🔌What is the primary function of a diode in a circuit?

A diode allows current to flow easily in one direction while blocking it in the opposite direction, often used for rectification.

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⚠️What color tag identifies a 'condemned' or unserviceable aircraft part?

A red tag typically identifies a part that is condemned or unserviceable and must not be installed on an aircraft.

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📡Which logic gate outputs TRUE only when all inputs are TRUE?

The AND gate outputs a high (TRUE) signal only when all of its input signals are high (TRUE).

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📏What instrument is used to measure electrical resistance?

An ohmmeter (or multimeter set to resistance mode) is used to measure electrical resistance in ohms.

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✈️What does ESD stand for in electronics handling?

ESD stands for Electrostatic Discharge, which can damage sensitive electronic components during handling.

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AET Certification Study Guide

This AET study guide breaks down the essential information you need to know about the exam. From registration to results, explore the tabs below to familiarize yourself with the NCATT AET certification process.

What is the AET certification?
The AET certification (Aircraft Electronics Technician) is a credential issued by ASTM International (formerly NCATT) that validates a technician's knowledge of basic aviation electronics and safety standards.
Who should take the AET exam?
Aspiring aviation electronics technicians, avionics students, and mechanics looking to specialize in avionics should take the exam to demonstrate competency to employers.
Is the AET exam mandatory?
While not legally required by the FAA like the A&P license, the NCATT AET is highly preferred by major airlines and MROs as proof of avionics proficiency.
What topics are covered on the AET test?
The exam covers DC/AC circuits, solid-state electronics, digital logic, aircraft safety, maintenance forms, and basic tool usage.

AET Exam Structure and Content

The AET exam is divided into several knowledge areas established by ASTM Committee F35. Understanding these domains is crucial for passing the NCATT AET test. Below is a breakdown of the key topics covered.

⚡Basic Electricity / Core

Foundational electrical concepts essential for any aviation electronics technician.

CircuitsTheoryOhmLawBatteries
  • Topics: Voltage, Current, Resistance, Power
  • Questions: ~20-25% of exam
🛑Safety & Procedures / Critical

Safety protocols are a major component of the AET certification exam.

ControlHazmatToolSafety
  • Topics: PPE, Fire Classes, Grounding
  • Questions: ~15-20% of exam
🔌Electronics Theory / Technical

Advanced component knowledge required for AET test success.

DiodesTransistorsAmplifiersFilters
  • Topics: Solid-state devices, Rectification
  • Questions: ~20% of exam
🔢Digital Logic / Modern

Understanding digital systems is key for modern AET certification.

BinaryLogicGatesTruthTablesProcessors
  • Topics: AND, OR, NOT, Hexadecimal
  • Questions: ~15% of exam
🛠️Maintenance Practices / Applied

Practical skills tested on the NCATT AET exam.

SolderingCrimpingWiringHarnessing
  • Topics: Standard repairs, Connector assembly
  • Questions: ~15% of exam
📜Regulations / Legal

Knowledge of FAA and industry rules for the AET exam.

RsChaptersFormsManuals
  • Topics: Record keeping, Airworthiness
  • Questions: ~10% of exam

Focus heavily on basic electrical theory and safety. Many AET exam questions are derived from fundamental Ohm's Law calculations and standard workplace safety practices found in ASTM standards.

AET Exam Score Calculator

Total Scored Questions

150

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correctPASS

AET Salary and Career Outlook

💰

$72,500

Median Annual Salary

👶Entry Level AET
$45,000 - $55,000
~$4,100/mo0-2 Years
🔧Experienced Tech
$60,000 - $80,000
~$5,800/mo3-7 Years
👨‍✈️Senior Avionics
$85,000 - $100,000+
~$7,500/mo8+ Years
🏭Aerospace Mfg
$70,000 - $95,000
~$6,800/moVaries
🛠️MRO Specialist
$65,000 - $90,000
~$6,400/moVaries

How to Become an AET

The journey to becoming a certified Aircraft Electronics Technician involves training, study, and testing. Here is the typical timeline to obtain your AET certification.

📝
Month 13

Test

Enroll in an aircraft electronics technician training program or gain military experience.
🏆
Month 14

+Certified

Use AET practice test resources and study guides to master ASTM F35 standards.

AET Certification Costs

Understanding the investment for your AET certification is important for planning. Below are the estimated costs associated with becoming an aviation electronics technician.

💵$175Exam Fee Standard testing fee
📚$50-$200Study Materials Books & Practice Tests
🎓$5k-$20kTraining Program Tuition (if applicable)
🔄$175Retake Fee If exam is failed
📋$0Renewal No expiration
$100+Endorsements Optional add-ons

While the training and AET exam fees require upfront capital, the potential to earn over $70,000 annually as a certified aircraft electronics technician makes it a sound career investment.

Aet Aircraft Electronics Technician - Aet

AET Career Opportunities

The AET certification prepares you for diverse roles in the aviation industry. Explore these common career paths for certified technicians.

🛠️

Avionics

Bench TechSpecializes in component-level repair of avionics equipment like radios and navigation units in a shop setting. Requires precision soldering and diagnostic skills.

✈️

Line

Maintenance TechPerforms on-aircraft troubleshooting and LRU replacement at airport gates to keep commercial flights on schedule. Fast-paced

AET Testing Contacts

For official information regarding the AET exam, registration, and standards, contact these organizations.

📍

ASTM

International Certifying Body

Website: astm.org

Services: Standards, Certification

Contact: Service Dept

🏢

PSI Exams

Testing Provider

Website: psiexams.com

Services: Exam Scheduling

Contact: Support Line

🎓

NCATT

Program History

Website: NCATT Info

Services: AET Resources

Contact: Via ASTM

✈️

AEA Aircraft Electronics Assoc.

Website: aea.net

Services: Training & News

Contact: Member Services

AET Test Day Checklist

Ready to Pass Your AET Exam?

Join thousands of technicians who have used our AET practice test resources to certify. Start your free exam prep today.

AET Certification Renewal

🔄

Renewal Cycle

Lifetime

💲

Renewal Fee

$0

After earning your core AET certification, you can pursue add-on endorsements in Radio Communication Systems, Dependent Navigation Systems, and more to demonstrate advanced competency.

AET Questions and Answers

About the Author

Michael TorresBS Civil Engineering, Master Plumber License

Licensed Contractor & Trades Certification Expert

Purdue University

Michael Torres earned his Bachelor of Science in Civil Engineering from Purdue University and holds master plumber and general contractor licenses in multiple states. With 18 years of field experience and 8 years teaching apprenticeship programs, he is a trusted resource for tradespeople preparing for journeyman and master-level licensing exams.