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Not affiliated with the FAA. Original questions based on the current text of 14 CFR Parts 65, 91, 117 and 121 on eCFR (current as of 2026-10-26), the FAA Aviation Weather Handbook (FAA-H-8083-28B) and Pilot’s Handbook of Aeronautical Knowledge (FAA-H-8083-25C).

FAA Aircraft Dispatcher (ADX) knowledge test: practice test with original questions

Practice for the FAA Aircraft Dispatcher (ADX) knowledge test with 89 original questions written from the current 14 CFR Parts 65, 91, 117 and 121 and FAA handbooks. Mock tests follow the published rule: 80 questions, 56 correct to pass.

The FAA Aircraft Dispatcher (ADX) knowledge test has 80 questions, and you pass with 56 correct answers. These 89 practice questions were written from 14 CFR Part 121, Operating Requirements: Domestic, Flag, and Supplemental Operations (eCFR, current as of 2026-10-26) (eCFR current as of 2026-10-26) and checked against it on Oct 28, 2026.

Covers: 14 CFR Parts 65, 91, 117 and 121 as of 2026-10-26; AWH FAA-H-8083-28B; PHAK FAA-H-8083-25CVerified current as of Oct 28, 2026Languages: English

89 questions · Modes: Study, Topic drill, Mock exam, Daily 5

Mock exam: 80 questions, pass at 56

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About this test

Practice for the FAA Aircraft Dispatcher (ADX) knowledge test with original questions written from the current text of 14 CFR Parts 65, 91, 117 and 121 on eCFR (current as of 2026-10-26), the FAA Aviation Weather Handbook (FAA-H-8083-28B) and Pilot’s Handbook of Aeronautical Knowledge (FAA-H-8083-25C). Every correct answer is backed by a passage of the source and checked by two independent verifiers.

  • Study: every question with a short explanation.
  • Topic drills: dispatcher certification and duties, dispatch, fuel and alternates, flight and duty limits, weather, aircraft performance and systems, airspace and navigation.
  • Mock test: 80 questions, 56 correct (70%) to pass, as the FAA Airman Knowledge Testing Matrix (revised 9/25/26) states for test ADX.

The questions are written in our own words; this is not the FAA’s question bank. Chart, figure and computer questions that need images are not included.

Topics

  • Additional alternate · 1
  • Age for certificate · 1
  • Age for knowledge test · 1
  • AIRMET categories · 1
  • Altimeter and pressure changes · 1
  • Altimeter and temperature · 1
  • Amending the release en route · 1
  • Annual flight time limit · 1
  • Cabin pressure altitude · 1
  • Changing destination en route · 1
  • Class C airspace dimensions · 1
  • Class D airspace dimensions · 1
  • Coffin corner · 1
  • Cold front movement · 1
  • Compressor stall · 1
  • Conditional instability · 1
  • Continuing in unsafe conditions · 1
  • Coriolis force · 1
  • Course hours · 1
  • Course record retention · 1
  • Critical Mach number · 1
  • Cumulative flight duty period · 1
  • Delegating release signature · 1
  • Density altitude · 1
  • Dispatcher responsibilities · 1
  • Dispatcher rest period · 1
  • Dispatching authority · 1
  • Dispatch release contents · 1
  • Domestic fuel supply · 1
  • Dual VOR check tolerance · 1
  • Dynamic hydroplaning speed · 1
  • En route communication records · 1
  • Experience requirement · 1
  • FDP extension before takeoff · 1
  • Fitness statement · 1
  • Fuel computation factors · 1
  • Graduation statement validity · 1
  • Ground effect on takeoff · 1
  • Hot start · 1
  • Icing and lift · 1
  • Icing response · 1
  • Icing temperatures · 1
  • IFR course to be flown · 1
  • IFR cruising altitudes below 18,000 ft · 1
  • IFR minimum altitude in mountainous areas · 1
  • Information to pilot · 1
  • Instructor ratio · 1
  • Jet stream altitude and speed · 1
  • Jet streams and seasons · 1
  • Language requirement · 1
  • Lift-off speed · 1
  • Listing alternates · 1
  • Long-trip rest at home base · 1
  • Low-level wind shear definition · 1
  • Mach number regimes · 1
  • MEA and MOCA · 1
  • Measuring true course · 1
  • Microburst characteristics · 1
  • Minimum rest before duty · 1
  • Occluded front · 1
  • Pilot in command authority · 1
  • Practical test · 1
  • Pressure altitude · 1
  • Pressure gradient and wind speed · 1
  • Pressure near fronts · 1
  • Radio failure route · 1
  • Recording amendments · 1
  • Reporting excess flight time · 1
  • Rime ice · 1
  • Runway slope · 1
  • RVSM flight levels · 1
  • Short call reserve · 1
  • Signing the release · 1
  • Stall speed and altitude · 1
  • Structural load factor, normal category · 1
  • Supplemental fuel inside the 48 states · 1
  • Supplemental oxygen requirements · 1
  • Surface wind and isobars · 1
  • Thunderstorm life cycle · 1
  • Turbine thrust and density · 1
  • Unusable fuel · 1
  • VFR dispatch · 1
  • VMO and MMO · 1
  • VOR check record · 1
  • Vortex drift · 1
  • Warm front movement · 1
  • Weather with the release · 1
  • Weekly rest · 1
  • Wingtip vortex strength · 1

Sources and version

Covers: 14 CFR Parts 65, 91, 117 and 121 as of 2026-10-26; AWH FAA-H-8083-28B; PHAK FAA-H-8083-25C · Verified current as of Oct 28, 2026

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How this page was made

Built from the sources listed above and reviewed before it was published. Where the source licence allows it the questions keep the source wording; otherwise they are original questions based on the source. Every answer shows its source. This is not legal, immigration, medical or financial advice.

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