Free Aircraft Maintenance Technician (AMT) Certification Exam Questions and Answers
Aircraft Maintenance Technician (AMT) Certification Exam is an Aviation certification exam. This page has free practice questions for it with answers and explanations, set out the way the real exam asks them, plus a timed practice test that scores you against the pass mark.
If you searched for Aircraft Maintenance Technician (AMT) Certification Exam dumps, an ExamTopics discussion or a free PDF, this is the question bank for it: practice questions with verified answers and explanations, a timed practice test and updates whenever Aviation changes the exam.
Last updated: October 24, 2026
- Provider
- Aviation
- Questions in our bank
- 1000+
- Free to read
- First 10, with answers
- Our test mode duration & pass mark
- 130 mins · 70%
- Verified answers
- Reviewed weekly
- Practice format
- Multiple choice
Recommended: Switch to Test Mode to start a practice test that simulates the real exam experience.
Question #1
Which gas law states that, at a constant temperature, the volume of a gas varies inversely with its absolute pressure?
Correct answer: B
Explanation
Boyle's law describes the inverse relationship between pressure and volume at constant temperature. Charles's law relates volume and temperature at constant pressure, and Dalton's law deals with the partial pressures in a gas mixture.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #2
Which hydraulic component allows fluid to flow freely in one direction and blocks flow in the opposite direction?
Correct answer: C
Explanation
A check valve passes fluid one way and seals against reverse flow. A shuttle valve selects between two fluid sources, and a sequence valve times the operation of one actuator after another.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #3
A reciprocating engine uses a heat exchanger around the muffler to provide cabin heat. A crack is found in the muffler wall. What is the primary hazard?
Correct answer: B
Explanation
Ventilation air passes over the hot muffler surface, so a crack lets exhaust gases, including carbon monoxide, mix with the cabin heat air. Such a muffler must be repaired or replaced before flight. The other effects are not the primary safety concern.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #4
During a differential compression check on a reciprocating engine, one cylinder reads low and air can be heard escaping from the exhaust pipe. What is the most likely cause?
Correct answer: B
Explanation
With the piston at top dead center on the compression stroke, air heard at the exhaust outlet points to an exhaust valve that is not seating. Worn rings would show air escaping at the crankcase breather or oil filler, and an intake valve leak would be heard at the induction inlet.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #5
What is the primary sensing element in a direct-reading engine oil pressure gauge?
Correct answer: A
Explanation
A Bourdon tube is a curved, flattened tube that straightens as pressure rises, moving the pointer through linkage. An aneroid capsule is used for low pressures and altitude, and a bimetallic coil responds to temperature.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #6
What is the purpose of compressor bleed valves on an axial-flow turbine engine?
Correct answer: B
Explanation
At low rpm the front stages deliver more air than the rear stages can pass, so bleed valves open to dump the excess and keep the blades from stalling. They close as the engine approaches higher speeds.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #7
What is the area of a circle that has a radius of 3 inches? (Use π = 3.14.)
Correct answer: B
Explanation
Area = πr², so 3.14 × 3 × 3 = 28.26 square inches. The 18.84 figure is the circumference (2πr), and 113.04 results from squaring the diameter of 6 inches instead of the radius.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #8
Which line on an aircraft drawing represents an edge that is not visible from the viewing direction?
Correct answer: C
Explanation
Hidden lines are drawn as short, evenly spaced dashes. The line of alternating long and short dashes is a centerline, and the thin line with arrowheads at each end is a dimension line.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #9
What is the function of a hydraulic fuse?
Correct answer: B
Explanation
A hydraulic fuse shuts off flow when a downstream line or component ruptures, which prevents loss of the entire system fluid supply. The pressure relief valve limits pressure and the check valve controls flow direction.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Question #10
With the pitot tube open and the static port blocked, how will the airspeed indicator read during a descent?
Correct answer: A
Explanation
The blocked static line traps the static pressure present at the higher altitude. In a descent, true static pressure rises, so the trapped pressure is lower than actual. The difference between pitot and static pressure is then larger, and the indicator reads high.
Continue with Aircraft Maintenance Technician (AMT) Certification Exam
Unlock the full question bank
You have read the first 10 questions. A subscription opens every question in Aircraft Maintenance Technician (AMT) Certification Exam, the full timed practice test, and your progress and weak-topic reporting.
Single exam
$19.99for 30 days
Full question bank and practice test for one exam, for 30 days.
Single exam
$49.99for 1 year
One exam for a full year. Nothing renews and nothing to cancel.
Full access
$39.99/mo
Every exam in the catalogue, month to month.
Full access
$199.99/yr
Every exam in the catalogue for a year.
Already subscribed? Sign in to pick up where you left off.
Discussion
Explain your reasoning, not just the letterOther Aviation certifications
- UAV Operator Exam (opens in a new tab)
- Helicopter Air Ambulance Pilot Exam (opens in a new tab)
- Transport Canada ATPL Written Exam (opens in a new tab)
- Flight Crew Resource Management (CRM) Exam (opens in a new tab)
- Mexican DGAC (Dirección General de Aeronáutica Civil) Pilot Exam (opens in a new tab)
- ICAO (International Civil Aviation Organization) Aviation English Proficiency Exam (opens in a new tab)
- Airline Maintenance Engineer Exam (opens in a new tab)
- Aviation Leadership and Management Certification Exam (opens in a new tab)
- Civil Aviation Compliance Officer Exam (opens in a new tab)
- Flight Data Analysis Certification Exam (opens in a new tab)
- Aircraft Performance Calculations Exam (opens in a new tab)
- Aircraft Performance Exam (opens in a new tab)
Reviews
Write a review★★★★★
Exam Practice is worth every penny. The mock exams are realistic, and the feedback helped me focus on key areas.
Amit SharmaVerified buyer
★★★★★
I highly recommend Exam Practice. The feedback after each test helped me improve significantly, and I passed my exams easily.
Oscar NyströmVerified buyer
★★★★★
This platform is a lifesaver. The practice questions and explanations are so detailed. It’s the best study tool I’ve ever used.
Hannah SmithVerified buyer
FAQ
- Q1: What is the Aircraft Maintenance Technician (AMT) Certification Exam exam?
- A: Aircraft Maintenance Technician (AMT) Certification Exam is a professional examination offered by Aviation.
- Q2: Are there practice questions for Aircraft Maintenance Technician (AMT) Certification Exam?
- A: Yes. The first ten are free to read with their answers and no account is needed; the rest of the bank and the practice test come with access to the exam.
- Q3: How should I prepare for Aircraft Maintenance Technician (AMT) Certification Exam?
- A: Start from the official Aviation exam objectives, which define what is actually tested, and practise against questions written to them rather than to a syllabus someone has guessed at.