Airframe and Powerplant Practice Test – Aviation Mechanic Questions

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The recent experience rule for mechanics looks back over what period?

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All 152 questions

The mechanic certificate (part 65) 24

  • A certificated mechanic has never done a certain job. When may that mechanic supervise it or approve it for return to service? 14 CFR § 65.81(a)
  • A mechanic holds the powerplant rating only. On what may that mechanic do a 100-hour inspection? 14 CFR § 65.87(a)
  • A mechanic's permanent mailing address changes. Within how long must the FAA be told in writing of the new address? 14 CFR § 65.21
Show all 152 questions (149 more)

The mechanic certificate (part 65), continued

  • An applicant fails a mechanic test and has no statement of additional instruction. When may the applicant apply for retesting? 14 CFR § 65.19(a)
  • An applicant wants both the airframe and the powerplant rating on practical experience alone. What must the experience be? 14 CFR § 65.77(b)
  • An applicant who does not meet the English requirement is employed outside the United States by a U.S. air carrier. What does the rule provide? 14 CFR § 65.71(a)
  • Besides a powerplant, what may a mechanic with a powerplant rating approve for return to service? 14 CFR § 65.87(a)
  • Besides the written test, which tests must each applicant for a mechanic certificate or rating pass? 14 CFR § 65.79
  • Does supervising aircraft maintenance in an executive capacity count toward a mechanic's recent experience? 14 CFR § 65.83(b)
  • For how long is a mechanic certificate effective? 14 CFR § 65.15(a)
  • For how long, inside the look-back period, must a mechanic have worked to keep using the certificate and rating? 14 CFR § 65.83(b)
  • How old must a person be to be eligible for a mechanic certificate? 14 CFR § 65.71(a)
  • The recent experience rule for mechanics looks back over what period? 14 CFR § 65.83
  • Under the general rule on the written test, what must come before an application for the oral and practical tests? 14 CFR § 65.75(b)
  • What may a mechanic applicant present in place of documentary evidence of practical experience? 14 CFR § 65.77(a)
  • What must come before a mechanic holding the airframe rating returns an airframe to service? 14 CFR § 65.85(a)
  • What must the holder do with a part 65 certificate that has been suspended or revoked? 14 CFR § 65.15(c)
  • Where must the holder of a mechanic certificate keep it? 14 CFR § 65.89
  • Which activity counts toward a mechanic's recent experience? 14 CFR § 65.83(b)
  • Which inspection required by part 91 does the airframe rating let a mechanic perform on an airframe? 14 CFR § 65.85(a)
  • Which language ability does the eligibility rule ask of a mechanic applicant? 14 CFR § 65.71(a)
  • Which work is shut out of the general privileges of a certificated mechanic? 14 CFR § 65.81(a)
  • Within what period must an applicant for a mechanic certificate have passed all of the prescribed tests? 14 CFR § 65.71(a)
  • Without a school document, how much practical experience must an applicant show for one rating, airframe or powerplant? 14 CFR § 65.77(b)

The inspection authorization (part 65) 13

  • A refresher course is one way to renew an inspection authorization. How long must the course be? 14 CFR § 65.93(a)
  • After a major repair, on what condition may an inspection authorization holder approve the aircraft for return to service? 14 CFR § 65.95(a)
  • An applicant fails the written test for the inspection authorization. How long before a retest may be applied for? 14 CFR § 65.91(c)
  • An inspection authorization holder gives up the fixed base of operation and has no other. What happens to the authorization? 14 CFR § 65.92(b)
  • Annual inspections can count toward renewal of an inspection authorization. How many are needed? 14 CFR § 65.93(a)
  • For how long must both mechanic ratings have been in effect before a person is eligible for an inspection authorization? 14 CFR § 65.91(c)
  • For what period before applying must an inspection authorization applicant have been actively engaged in maintaining aircraft? 14 CFR § 65.91(c)
  • On what date does each inspection authorization expire? 14 CFR § 65.92(a)
  • The powerplant rating of an inspection authorization holder is no longer effective. May the authorization still be used? 14 CFR § 65.92(a)
  • To renew on major repairs or major alterations, how many must the holder have performed? 14 CFR § 65.93(a)
  • What kind of base must an inspection authorization applicant have? 14 CFR § 65.91(c)
  • Which inspection is named among the privileges of an inspection authorization? 14 CFR § 65.95(a)
  • Who gives the oral test that can count toward renewal of an inspection authorization? 14 CFR § 65.93(a)

Maintenance rules and records (part 43) 27

  • A person without a certificate works under a mechanic's supervision. What does the rule ask of the supervisor? 14 CFR § 43.3(d)
  • An aircraft is not approved for return to service after an annual inspection. What does the entry say was provided to the owner or operator? 14 CFR § 43.11(a)
  • An engine is described as "overhauled" in a maintenance entry. What must have been done to it, besides testing? 14 CFR § 43.2(a)
  • Before approving a reciprocating-engine aircraft after an annual inspection, what must the person do with the engine? 14 CFR § 43.15(c)
  • Besides the date, which figure goes in an inspection record entry? 14 CFR § 43.11(a)
  • How does a record entry identify the person approving the work? 14 CFR § 43.9(a)
  • In what condition must maintenance leave the aircraft or part worked on? 14 CFR § 43.13(b)
  • The manufacturer recommends special test apparatus for a job. What must the person doing the work use? 14 CFR § 43.13(a)
  • Per the General handbook, who besides a mechanic may do preventive maintenance on an aircraft that person owns or operates? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 2-14
  • To which limits must a part be tested before it can be described as "rebuilt"? 14 CFR § 43.2(b)
  • Under which part does the holder of a mechanic certificate approve work for return to service? 14 CFR § 43.7(b)
  • What does the signature on a maintenance record entry approve? 14 CFR § 43.9(a)
  • What is the first item a maintenance record entry must contain? 14 CFR § 43.9(a)
  • What must be done at the start of a progressive inspection system? 14 CFR § 43.15(d)
  • What must each person use while performing an annual or 100-hour inspection? 14 CFR § 43.15(c)
  • What must have been made before anyone approves an aircraft for return to service after maintenance? 14 CFR § 43.5
  • What must the record entry for an inspection say about the inspection itself? 14 CFR § 43.11(a)
  • When must a maintenance entry give the name of the person who did the work? 14 CFR § 43.9(a)
  • Where does part 43 list the items that count as a major alteration, a major repair or preventive maintenance? 14 CFR § 43.3(a)
  • Which appendix of part 43 sets the scope and detail of the checklist for an annual or 100-hour inspection? 14 CFR § 43.15(c)
  • Which date belongs in the record entry for a repair? 14 CFR § 43.9(a)
  • Which form does the General handbook name for recording a major repair or a major alteration? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 2-15
  • Which measure of power output is checked in the engine run after an annual inspection? 14 CFR § 43.15(c)
  • Which methods, techniques and practices does the performance rule name first? 14 CFR § 43.13(a)
  • Which pressures are on the list for the engine run after a 100-hour inspection? 14 CFR § 43.15(c)
  • Which temperatures does the post-inspection engine run check? 14 CFR § 43.15(c)
  • Whose design may the inspection checklist be? 14 CFR § 43.15(c)

Weight and balance 10

  • An item's arm carries a positive sign. Where does the item sit? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 6-2
  • By the standard figure, what does a gallon of water weigh? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, PDF page 665
  • For an extreme loading check, how does the General handbook define minimum fuel? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 6-5
  • How does the General handbook define the datum? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 6-2
  • How is useful load determined? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, PDF page 666
  • How many pounds per gallon does lubricating oil weigh by the standard figure? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, PDF page 665
  • What does "arm" mean on a weighing form? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 6-2
  • What standard weight does the glossary list for each crew member and passenger? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, PDF page 665
  • What standard weight is listed for turbine fuel? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, PDF page 665
  • Which standard weight does the General handbook's glossary give for aviation gasoline? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, PDF page 665

Basic electricity 8

  • A hydrometer is used on a lead-acid battery. Which reading shows a charged battery? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-2
  • About what hydrometer reading does the General handbook give for a discharged lead-acid battery? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-2
  • An alternating voltage is 500 volts RMS. What is its peak voltage? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 12-51
  • How does the current compare at different points of a series circuit? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 12-34
  • How much work rate is one horsepower? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 12-21
  • In what units is specific gravity expressed? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-2
  • In which unit is the capacity of a capacitor measured? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 12-50
  • Which circuit property opposes any change in current and is measured in henries? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 12-58

Physics and mathematics 7

  • In mathematics, what is a root? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 3-12
  • In the General handbook's example of Pascal's law, 100 psi is applied to a confined fluid. How does that pressure act? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-27
  • Sound moves quickest in which kind of material? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-31
  • What does mechanical advantage compare? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-8
  • What is the velocity of sound in air at 0 °C (32 °F)? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-31
  • Which correction turns pressure altitude into density altitude? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 5-34
  • Which two roots does the General handbook call the most common? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 3-12

Materials, hardware and processes 18

  • A bolt's part number begins with the letters AN. What do they designate? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-39
  • A metal shatters after very little bending or deformation. Which property is that? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-1
  • How is safety wire routed on a part with left-hand threads? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-76
  • In heat treating steel, where does tempering come in the order of operations? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-19
  • In the four-digit designation of a wrought aluminum alloy, what does the first digit identify? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-7
  • Kept in cold storage, for how long do heat-treated rivets stay soft enough for driving, per the General handbook? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-52
  • What are rivets called that are kept refrigerated after heat treatment until they are driven? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-52
  • What does a dial indicator measure? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 11-24
  • What does a fast or jerky pull on a torque wrench produce? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-49
  • What does case hardening produce? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-20
  • What does tempering do to hardened steel? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-19
  • What sets a self-locking nut apart from a plain nut? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-41
  • Where on an aircraft are roundhead rivets used? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-54
  • Which metal does the General handbook give as an example of a malleable metal? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-1
  • Which property lets a metal be permanently drawn, bent or twisted into shapes without breaking? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-1
  • Which steels are best suited to case hardening? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-20
  • Which three types of lockbolt are commonly used? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 7-39
  • Why must torque wrenches be tested at periodic intervals? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 11-6

Corrosion control 11

  • Exfoliation corrosion is an advanced form of which type? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-7
  • Fretting corrosion occurs between which surfaces? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-9
  • How does the General handbook rank pitting corrosion? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-6
  • How is filiform corrosion recognized? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-5
  • On what kind of surface does filiform corrosion occur? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-5
  • What does shot peening a metal surface do for stress corrosion? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-8
  • What is alodizing used for? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-22
  • What is the first visible sign of pitting on aluminum? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-6
  • What sets up galvanic corrosion? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-10
  • Where does intergranular corrosion attack an alloy? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-7
  • Which is the most common surface treatment of nonclad aluminum alloy surfaces? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 8-22

Aircraft drawings 11

  • By what other name are hidden lines often called? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-18
  • How are centerlines drawn? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-16
  • How are leader lines drawn? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-18
  • How is a phantom line made up? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-17
  • What do break lines indicate? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-18
  • What do phantom lines indicate on a drawing? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-17
  • What is the primary purpose of an assembly drawing? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-2
  • Which drawing describes a single part? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-2
  • Which drawing describes an object made up of two or more parts? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-2
  • Which drawing gives the information for a part or assembly in its final installed position in the aircraft? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-2
  • Which lines indicate invisible edges or contours? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 4-18

Fluid lines and inspection methods 5

  • Does the magnetic particle method work on a nonmagnetic part? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 10-29
  • In which materials does magnetic particle inspection find cracks? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 10-29
  • What is the result of a tube flare that is made too small? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 9-4
  • Which defects does penetrant inspection find? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 10-18
  • Which four processes make up tube forming? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 9-2

Ground operation, fuels and human factors 18

  • A hydraulic lock is found while pulling a propeller through. What must never be done? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-12
  • Before starting a radial engine that has been standing, how is a hydraulic lock detected? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-12
  • In a false or hung start, what does the rpm do after light-off? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-17
  • In the fuel grade 80/87, what do the two numbers mean? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-25
  • In the PEAR model of human factors, what does the P stand for? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 14-9
  • In which fuel are microbiological growths a problem? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-26
  • What can a lack of communication lead to in maintenance, per the General handbook? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 14-13
  • What can adding aviation gasoline to jet fuel cause in a turbine engine? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-25
  • What is a hot start on a turbine engine? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-17
  • What is the R in PEAR short for? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 14-9
  • What must be done at once when a turbine engine hot start is seen? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-17
  • Which class of fire involves energized electrical wiring and equipment? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-5
  • Which class of fire involves flammable metal? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-5
  • Which class of fire involves flammable petroleum products and other flammable liquids? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-5
  • Which class of fire involves ordinary combustible materials such as wood, cloth and paper? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-5
  • Which metal is usually involved in a Class D fire in the shop or in aircraft wheels and brakes? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-5
  • Which three grades of aviation gasoline does the General handbook list as in general use? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 1-25
  • Which words does the E of PEAR stand for? Aviation Maintenance Technician Handbook - General, FAA-H-8083-30B, page 14-9

How this list was compiled: Written from the text of 14 CFR parts 43 and 65 as published in the Electronic Code of Federal Regulations (a US government work), read at https://www.ecfr.gov/current/title-14 in the eCFR text dated 2026-09-29, and from the FAA's Aviation Maintenance Technician Handbook – General, FAA-H-8083-30B (a US government work), read as the PDF on faa.gov on 2026-10-04. Every question names the section or handbook page its answer comes from and links to it. Licence: Own work. Questions, answer choices and explanations were written for this site from the rule text and the handbook, which are US government works. Nothing is copied from an FAA knowledge test, an FAA sample question or any prep company's bank.

All 102 questions

Structures and station numbering 17

  • From what are fuselage stations numbered? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-37
  • How do stringers compare with longerons in a fuselage? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-8
  • In a semimonocoque fuselage, what are the longitudinal members that reinforce the skin called? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-8
Show all 102 questions (99 more)

Structures and station numbering, continued

  • In airfoil terms, when is camber said to be positive? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-5
  • In true monocoque construction, which parts give the fuselage its shape? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-8
  • To which fuselage members do wing spars correspond? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-12
  • What are vortex generators? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-32
  • What are wing ribs? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-14
  • What do longerons help the skin of a fuselage support? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-8
  • What does a water line measurement give? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-37
  • What is a winglet designed to reduce? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-32
  • What is a winglet? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-32
  • What is the buttock line of an aircraft? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-37
  • What sets a full cantilever wing apart? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-10
  • When is a wing's angle of incidence said to be positive? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-5
  • Which members are the principal structural members of the wing? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-12
  • Which section of an airplane is the empennage? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-19

Flight controls and rigging 25

  • A rag is rubbed along a control cable. What shows that strands are broken? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-41
  • About which axis do the ailerons move the aircraft? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-24
  • About which axis does the aircraft rotate when the rudder changes position? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-23
  • How accurate is a properly maintained tensiometer, per the Airframe handbook? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-43
  • How can a control cable be closely inspected in its critical fatigue areas? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-41
  • How does a fly-by-wire control system carry the pilot's actions to the flight control actuators? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-14
  • In rigging, what are the control stops adjusted to do? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-51
  • In the handbook's table of tabs, what does a servo tab do? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-28
  • To what is the elevator attached? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-23
  • To what is the rudder hinged? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-23
  • What are flaperons? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-26
  • What does a deployed spoiler do? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-29
  • What does a helicopter's collective control change? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-45
  • What does a stick shaker provide? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-14
  • What does a turnbuckle assembly consist of? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-44
  • What does moving a helicopter's cyclic control do? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-45
  • What does moving the elevator alter? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-23
  • What is a stabilator? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-26
  • What is a turnbuckle used for in a cable system? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-44
  • What is the first general step in rigging a flight control system? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-51
  • Where are ailerons usually located? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-24
  • Where is a spoiler found? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-29
  • Which control surface combines the action of the rudder and the elevator? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-26
  • Which tool is used to determine the amount of tension on a control cable? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-43
  • While the cable tension is adjusted during rigging, where are the rudder, elevators or ailerons held? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 2-51

Sheet metal and riveting 14

  • A drill bit or countersink is used to remove burrs from a drilled hole. How should it be turned? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-14
  • A rod is bent. What happens to the material on the inside and the outside of the bend? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-6
  • About how large are relief holes at the intersection of two bends? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-71
  • Bending stress is a combination of which two stresses? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-3
  • How much rivet shank is needed to form a shop head? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-32
  • In the rivet length formula A = B + C, what is B? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-32
  • What does the Airframe handbook say about small particles of titanium? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-84
  • What is a joggle in sheet metal work? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-80
  • What is rivet edge distance? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-33
  • What is rivet pitch? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-34
  • What is the smallest allowable rivet pitch? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-34
  • What may the bend allowance be considered to be? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-58
  • When is a rivet cutter used? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-35
  • Within which limits should rivet edge distance fall? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 4-33

Welding, covering, composites and finishes 11

  • For which work is the carburizing flame best used? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 5-12
  • How do the fibers run in a bidirectional composite material? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 7-2
  • How is an oxidizing flame produced? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 5-12
  • Pre-impregnated tape is an example of which ply orientation? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 7-2
  • What are grommets used for on a fabric covering? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 3-6
  • What can cause a flashback in a welding torch? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 5-7
  • What does a check valve do in a gas welding setup? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 5-7
  • What is zinc chromate? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 8-3
  • What was the major drawback of nitrate dope on fabric coverings? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 3-1
  • Which technique is perhaps the most common for detecting delamination or disbond in a composite? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 7-15
  • Which three types of flame are commonly used for gas welding? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 5-12

Hydraulics, landing gear and tires 13

  • A hydraulic system has been serviced with the wrong type of fluid. What does the Airframe handbook say to do? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 12-3
  • By what name is tail wheel landing gear known? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 1-35
  • How is a spherical hydraulic accumulator built? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 12-29
  • In an anti-skid brake system, what kind of device is a wheel speed sensor? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 13-61
  • Main wheels are set with toe-in. Where do the wheel paths cross? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 13-15
  • What does each chamber of a diaphragm accumulator hold? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 12-29
  • What does excessive flexing of a tire cause? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 13-78
  • What is a hydraulic reservoir? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 12-7
  • What is a selector valve used for? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 12-22
  • What keeps the piston and wheels of most shock struts aligned? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 13-9
  • What may happen to an underinflated tire in use? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 13-78
  • Which kind of hydroplaning occurs on runways with a thin film of water? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 13-92
  • Will petroleum-based and phosphate ester-based hydraulic fluids mix? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 12-3

Fuel, cabin atmosphere and fire protection 11

  • At about what altitude does a diluter-demand oxygen regulator meter 100 percent oxygen? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 16-10
  • On which aircraft are vapor cycle air conditioning systems often used? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 16-34
  • On which class of fire must Halons not be used? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 17-9
  • What determines the pressure level in a pressurized cabin? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 16-29
  • What does a crossfeed arrangement in a fuel system allow? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 14-11
  • What does the cabin pressure regulator control? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 16-29
  • What least pressure does the Airframe handbook mention for the cylinders on an oxygen servicing cart? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 16-17
  • What must a fuel jettison system be free from, by design and construction? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 14-2
  • Which areas are smoke detectors better suited to monitor? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 17-1
  • Which Halon is described as a total flooding agent? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 17-9
  • Which of these does the Airframe handbook list among rain control systems for windshields? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 15-26

Electrical systems and instruments 11

  • As wire gauge numbers become larger, what happens to the wire diameter? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 9-68
  • Between which values should the generator voltage be adjusted on a 24-volt system? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 9-23
  • By which standard are aircraft wire sizes made? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 9-68
  • How are aircraft electrical loads wired in almost all cases? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 9-2
  • On what frequency and for how long does a digital emergency locator transmitter send, per the Airframe handbook? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 11-63
  • To about what voltage is the generator adjusted in a 12-volt system? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 9-23
  • What does gyroscopic rigidity in space mean? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 10-51
  • What is the process of finding out how to adjust a magnetic compass for deviation called? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 10-42
  • What sets off an ELT (emergency locator transmitter) in an accident? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 11-63
  • Which pressure-sensing mechanism is used to measure relatively high pressures? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 10-4
  • Why are static dischargers, or wicks, installed on aircraft? Aviation Maintenance Technician Handbook - Airframe, FAA-H-8083-31B, page 11-73

How this list was compiled: Written from the FAA's Aviation Maintenance Technician Handbook – Airframe, FAA-H-8083-31B (a US government work), read as the PDF on faa.gov on 2026-10-04. Every question names the handbook page its answer comes from and links to the handbook. Licence: Own work. Questions, answer choices and explanations were written for this site from the handbook, which is a US government work. Nothing is copied from an FAA knowledge test, an FAA sample question or any prep company's bank.

All 112 questions

Reciprocating engine theory and parts 32

  • An engine backfires in the idle range but runs well at medium and high power. What is the most likely cause? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-30
  • By what other name is the four-stroke cycle sometimes called? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-25
  • How are the cylinders of a radial engine arranged? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-4
Show all 112 questions (109 more)

Reciprocating engine theory and parts, continued

  • How does the Powerplant handbook define detonation in a cylinder? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-29
  • How is heat carried away in an air-cooled engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-3
  • How is the crankshaft carried in the crankcase? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-7
  • In the firing order of a double-row radial engine, what never happens? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-16
  • In what order do the five events of a four-stroke cycle engine occur? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-25
  • In which piston grooves are the compression rings installed? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-12
  • What can a cracked valve or a broken spark plug insulator furnish in a cylinder? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-30
  • What do hydraulic tappets do for valve clearance? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-20
  • What does a major overhaul consist of? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-1
  • What does raising the compression ratio do to cylinder head temperature? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-34
  • What does the compression ratio of an engine compare? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-29
  • What does volumetric efficiency compare? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-35
  • What is a top overhaul of a reciprocating engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-1
  • What is brake horsepower? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-35
  • What is friction horsepower? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-35
  • What is indicated horsepower? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-35
  • What is manifold pressure? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-29
  • What is the bore of a cylinder? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-25
  • What is the critical altitude of a reciprocating engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, PDF page 466
  • What is the stroke of a reciprocating engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-25
  • What is valve overlap? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-33
  • Where are the oil control rings installed on a piston? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-12
  • Which advantage of the four-stroke cycle engine does the Powerplant handbook name? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-25
  • Which engines do small general aviation aircraft mostly use? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-1
  • Which of these may cause preignition? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 10-30
  • Why are two or more springs fitted to each valve in place of a single spring? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-21
  • Why do newer engines no longer use sludge chambers in the crankshaft? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-8
  • Why is the piston usually drilled at the oil control ring grooves? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-12
  • Why is valve clearance needed with solid lifters? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-20

Ignition and starting systems 13

  • How are dual magnetos generally built? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-1
  • Into which two classes are aircraft magneto ignition systems divided? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-1
  • On what does the operation of every type of inertia starter depend? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 5-1
  • What do carbon deposits from an excessively rich idle mixture lead to? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-29
  • What does the E in a magneto's E-gap position stand for? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-3
  • What does the ignition system check at run-up test? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-31
  • What drives an air turbine starter? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 5-1
  • What ignition system does the typical turbine engine have? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-43
  • What is a starter/generator? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 5-1
  • Which is one of the three events needed to fire a spark plug at the prescribed piston position? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-3
  • Which magneto system is still the most widely used? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-1
  • Which of these is a starting aid for a magneto ignition system? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-17
  • Why must the ignition be retarded while a reciprocating engine is being started? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 4-17

Fuel metering, induction and exhaust 18

  • At which speeds does the main metering system supply fuel? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-7
  • How does the manual mixture control valve of a fuel injection system act? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-23
  • Into which two categories can most thrust reverser systems be divided? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-27
  • On what does the basic operating principle of most carburetors depend? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-5
  • To what can about half of all muffler and heat exchanger failures be traced? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-23
  • What does the waste gate of a turbocharger regulate? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-7
  • What happens to air as it passes through the throat of a venturi? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-5
  • What is the idle cutoff system of a carburetor for? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-7
  • What is the small fuel pump on a carburetor called that covers a sudden opening of the throttle? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-13
  • What opens an alternate air door when the normal air route is blocked? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-1
  • What should every fuel system be designed to prevent, per the Powerplant handbook? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-1
  • When does carburetor icing occur? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-1
  • Where does impact ice collect in an induction system? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-9
  • Which fuel systems were more prone to vapor lock? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-1
  • Which impact ice does the Powerplant handbook call the most dangerous? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-9
  • Which of these can an exhaust system failure result in? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-22
  • Which part turns a turbocharger's impeller? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 3-7
  • Why is the leanest cylinder of an engine apt to backfire? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-3

Lubrication, cooling and fire detection 11

  • Into which two classes are engine pressure lubrication systems divided? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-4
  • What are the microscopic particles of metallic elements in engine oil called? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-20
  • What does a continuous-loop fire detector offer compared with spot-type detectors? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 9-3
  • What does a multigrade oil offer compared with monograde oils? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-3
  • What does a spectrometric oil analysis program look for in an oil sample? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-20
  • What is the cloud point of an oil? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-3
  • What is the first job of a lubricant in an engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-1
  • Where does a wet sump system store its oil? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-4
  • Which temperature is an oil's pour point? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-3
  • Which two types of engine fire detection system are common? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 9-2
  • With which installations are cowl flaps mostly used? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 6-33

Propellers 17

  • A propeller vibrates. Which two things does the Powerplant handbook say to check first? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-22
  • For what are fixed-pitch and ground-adjustable propellers designed? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-5
  • In the on-speed condition of a governor, which two forces are balanced? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-9
  • Into what does the propeller convert the engine's brake horsepower? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-2
  • Is pitch the same as blade angle? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-2
  • Of what does an aircraft propeller consist? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-1
  • Over what range does propeller efficiency vary? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-2
  • To about what angle does a feathering propeller change its pitch? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-8
  • What does the Powerplant handbook say a constant-speed propeller is used to give? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-36
  • What does thrust bending force do to propeller blades? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-3
  • What is geometric pitch? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-2
  • What is propeller slip? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-2
  • What is the propeller governor used to control? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-6
  • Which forces act on a rotating propeller? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-3
  • Which way does aerodynamic twisting force tend to turn the blades? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-3
  • Why do the governor flyweights tilt inward in an underspeed condition? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-9
  • Why must feathering propellers be used on multi-engine aircraft? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 7-8

Turbine engines 21

  • By what other name is the impulse turbine blade known? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-47
  • From what bypass figure up is a turbofan called high-bypass? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, PDF page 472
  • How does a centrifugal-flow compressor work? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-38
  • In a can-type combustion section, how does the flame reach the chambers that have no igniter? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-43
  • In principle, how does a turbofan differ from a turboprop? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-55
  • In the electronic engine control the handbook describes, how is thrust set in the normal mode and in the alternate mode? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-38
  • What danger does fuel left to accumulate in a combustion chamber after shutdown bring? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-44
  • What determines the bypass ratio of a turbofan engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-36
  • What does an auxiliary power unit provide on a turbine-powered aircraft? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-37
  • What does Newton's third law of motion state? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-1
  • What does the torquemeter assembly of a turboprop engine do? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-55
  • What is a turboprop engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-36
  • What is creep in a turbine engine part? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, PDF page 466
  • What is the Brayton cycle commonly called? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-58
  • What marks the axial-flow compressor? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-38
  • What was "turbojet" formerly the term for? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-1
  • When does rich blowout occur in a turbine engine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 2-33
  • Which law of motion does the Powerplant handbook apply to thrust? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-1
  • Which of these is a name for the stator element ahead of the turbine? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-46
  • Which thermodynamic cycle does a gas turbine engine work on? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-58
  • Which three types of turbine blade are there? Aviation Maintenance Technician Handbook - Powerplant, FAA-H-8083-32B, page 1-47

How this list was compiled: Written from the FAA's Aviation Maintenance Technician Handbook – Powerplant, FAA-H-8083-32B (a US government work), read as the PDF on faa.gov on 2026-10-04. Every question names the handbook page its answer comes from and links to the handbook. Licence: Own work. Questions, answer choices and explanations were written for this site from the handbook, which is a US government work. Nothing is copied from an FAA knowledge test, an FAA sample question or any prep company's bank.

How it works

This unofficial airframe and powerplant practice test has a bank for each aviation mechanic knowledge test: General, Airframe and Powerplant. The FAA does not publish its bank, so none are its questions.

Read the full guide

An aviation A&P practice test in three banks

The Question set menu switches banks. The A&P General written test questions ask the rules of 14 CFR parts 43 and 65 (certificates, privileges, inspection authorization, maintenance records) and the General handbook: weight and balance, electricity, materials, corrosion, drawings and ground operation. Airframe covers structures, flight controls, sheet metal, welding and composites, hydraulics and landing gear, and cabin, fuel and electrical systems. Powerplant covers reciprocating engines, ignition and starting, fuel metering, lubrication, propellers and turbine engines.

What this A&P practice exam leaves out

Questions that need a figure, a chart or a calculation are not here yet. No FAA question is here either: its bank is not published. This page gives no question count, time limit or passing score for the real tests.

  • Misses sit under Missed in More options until answered right.

Questions and answers

Are these the real A&P test questions?

No. The FAA does not publish its knowledge test question bank. Every question here was written for this site from 14 CFR parts 43 and 65 and the FAA's Aviation Maintenance Technician handbooks; none comes from an FAA sample test or a prep company.

Who is eligible for a mechanic certificate?

Under 14 CFR 65.71(a), a person must be at least 18 years of age, be able to read, write, speak and understand English (with one exception for work outside the United States), and have passed all of the prescribed tests within 24 months.

How much experience does a mechanic certificate take?

Section 65.77 asks for a document from a certificated aviation maintenance technician school, or evidence of at least 18 months of practical experience for one rating, or at least 30 months concurrently performing the duties of both the airframe and powerplant ratings.

Do the written tests come before the oral and practical tests?

Yes. Section 65.75(b) says the applicant must pass each section of the written test before applying for the oral and practical tests of section 65.79.

Which editions of the sources were used?

The eCFR text of 14 CFR dated September 29, 2026, and the General, Airframe and Powerplant handbooks, FAA-H-8083-30B, 31B and 32B, read on October 4, 2026. Rules change, and the current text at ecfr.gov is the final word.

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