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Which frontal system is most likely to produce a narrow band of showery precipitation, gusty winds, and an abrupt wind shift at the surface?

Warm front

Cold front

Stationary front

Occluded front

to track

2026 Statistics

Key Facts: FAA ADX Exam

Exam Questions

FAA ADX test matrix

70%

Passing Score

FAA ADX test matrix

210 min

Time Allotted

3.5 hours

$175

Current AKT Fee

PSI FAA testing portal

21 / 23

Age Milestones

21 to test, 23 to certificate

200 hrs or experience

Training Path

Approved course or qualifying experience

The FAA ADX exam is an 80-question, 210-minute Airman Knowledge Test with a 70% passing score. As of March 2026, PSI lists the standard Airman Knowledge Test fee at $175. Passing ADX is only one step: applicants also need the practical test and either qualifying experience or graduation from an approved 200-hour dispatcher course under 14 CFR 65.57 and 65.61.

Sample FAA ADX Practice Questions

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

1Which frontal system is most likely to produce a narrow band of showery precipitation, gusty winds, and an abrupt wind shift at the surface?

A.Warm front

B.Cold front

C.Stationary front

D.Occluded front

Explanation: A cold front has a relatively steep slope, so it forces warm air upward rapidly and often produces a narrow band of showers or thunderstorms. Surface winds usually shift quickly and temperatures and dew point often drop after passage.

2Which frontal boundary is most likely to produce widespread layered clouds and steady precipitation well ahead of the surface position of the front?

A.Cold front

B.Warm front

C.Dryline

D.Upper-level ridge

Explanation: Along a warm front, warm air overruns retreating colder air on a gentle slope. That overrunning commonly produces extensive stratiform cloud decks, reduced ceilings, and broad areas of steady precipitation ahead of the surface front.

3A stationary front lies across the planned route and is expected to remain nearly motionless through the day. What is the most likely dispatch concern?

A.Prolonged low ceilings and intermittent precipitation over the same area

B.Rapid clearing and rising temperatures along the route

C.Strong downslope warming with unlimited visibility

D.No significant weather because the front is not moving

Explanation: Because a stationary front changes position little, clouds and precipitation can persist over the same corridor for many hours. That can make dispatch planning difficult by prolonging IFR conditions, visibility restrictions, and alternate concerns.

4How does an occluded front normally form?

A.A warm front overtakes a cold front

B.A cold front overtakes a warm front

C.Two cold fronts merge inside a high-pressure area

D.A sea breeze collides with mountain wave flow

Explanation: An occluded front forms when a faster-moving cold front catches up to and overtakes a warm front. The warm air is lifted off the ground, and the resulting weather can include widespread clouds, precipitation, and shifting wind patterns.

5In the Northern Hemisphere, surface winds around a low-pressure system generally flow

A.Clockwise and outward

B.Counterclockwise and inward

C.Clockwise and inward

D.Counterclockwise and outward

Explanation: Surface winds around a low in the Northern Hemisphere circulate counterclockwise and spiral inward because friction weakens the balance that would otherwise keep the wind parallel to isobars. The inward flow promotes convergence and rising air, which supports cloudiness and precipitation.

6What do tightly packed surface isobars usually indicate?

A.A weak pressure gradient and light winds

B.A strong pressure gradient and stronger winds

C.Unlimited visibility at all reporting stations

D.Warm-air advection only

Explanation: Closely spaced isobars mean pressure changes rapidly over a short distance, which indicates a strong pressure-gradient force. Stronger pressure gradients usually support stronger winds, especially where surface friction is lower or mixing is good.

7Which weather pattern is most commonly associated with a surface high-pressure center?

A.Rising air, increasing cloudiness, and widespread rain

B.Sinking air, more stable conditions, and generally improving weather

C.An organized line of severe thunderstorms

D.Widespread freezing rain

Explanation: Surface highs are usually associated with subsidence, which suppresses large-scale upward motion. That often leads to more stable air and generally better flying weather, although low clouds or fog can still occur if moisture becomes trapped under an inversion.

8An airport has clear skies at sunset, light winds, and a temperature-dew point spread of 1 C over moist ground. Which hazard is most likely overnight?

A.Advection fog

B.Radiation fog

C.Blowing dust

D.Freezing rain

Explanation: Radiation fog forms most readily on clear nights with light winds, a moist surface, and small temperature-dew point spread. Nighttime radiational cooling lowers the air temperature to the dew point, allowing saturation near the surface.

9Advection fog most often forms when

A.Cold dry air moves over warm water

B.Warm moist air moves over a colder surface

C.Air cools by nighttime radiation under calm skies

D.Rain evaporates into very cold air

Explanation: Advection fog develops when warm, moist air passes over a colder land or water surface and is cooled to its dew point. It can occur with moderate winds and often covers large areas, making it especially important in coastal and marine-influenced operations.

10Upslope fog is most likely when

A.Moist stable air is forced uphill and cools to its dew point

B.Intense daytime heating creates dust devils

C.A dry cold front crosses flat terrain

D.Subsiding air warms on the lee side of mountains

Explanation: Upslope fog forms when moist air is lifted along rising terrain and cools adiabatically until it reaches saturation. Because the lifting is terrain-driven, the fog can be extensive and persistent on the windward side of high ground.

About the FAA ADX Exam

The FAA ADX Aircraft Dispatcher knowledge test is the written exam used on the path to an aircraft dispatcher certificate under 14 CFR Part 65. It tests the judgment and technical knowledge required for airline dispatch work, including operational control, meteorology, navigation, aircraft performance, dispatch releases, ATC coordination, abnormal operations, and practical flight-planning decisions in Part 121-style scenarios.

Questions

80 scored questions

Time Limit

3.5 hours (210 minutes)

Passing Score

70%

Exam Fee

$175 (Federal Aviation Administration (FAA) / PSI Services)

FAA ADX Exam Content Outline

High emphasis

Regulations and Operational Control

Part 65 eligibility and privileges, Part 121 operational control concepts, dispatch release requirements, alternate rules, HAZMAT/security constraints, and the dispatcher's shared responsibility with the PIC.

Highest emphasis

Meteorology and Weather Services

Fronts, pressure systems, icing, turbulence, thunderstorms, upper-air data, microbursts, jet-stream effects, and National Weather Service products used in airline dispatch.

High emphasis

Weather Products and NOTAM Interpretation

METARs, TAFs, PIREPs, GFA, AIRMETs, SIGMETs, radar and satellite imagery, weather charts, abbreviations, symbols, and NOTAM use in dispatch planning.

Moderate emphasis

Navigation and IFR Procedures

Airways, IFR charts, route selection, RNAV and radio-navigation concepts, instrument procedures, ATC flow considerations, and enroute/terminal decision making.

Moderate emphasis

Aircraft Performance and Loading

Weight and balance, center of gravity, takeoff and landing performance, climb and drift-down logic, aerodynamics, pressurization, aircraft limitations, and system knowledge relevant to dispatch.

Supporting emphasis

Communications and ATC Coordination

Radio phraseology, ATIS/ASOS/AWOS, IFR clearances, airspace and separation basics, ATC procedures, and dispatcher communication with crews and system stakeholders.

Supporting emphasis

Human Factors, ADM, and CRM

Aeronautical decision making, judgment, fatigue, crew resource management, and communication discipline during routine and abnormal operations.

High emphasis

Practical Dispatch Applications and Abnormal Operations

Route planning, fuel and alternate strategy, redispatch and release amendments, flight following, diversions, emergency authority, and real-world airline dispatch scenarios.

How to Pass the FAA ADX Exam

What You Need to Know

Passing score: 70%
Exam length: 80 questions
Time limit: 3.5 hours (210 minutes)
Exam fee: $175

Keys to Passing

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

FAA ADX Study Tips from Top Performers

1Make weather your first priority. Dispatcher candidates are expected to interpret fronts, icing, convection, upper-air data, and operational weather products quickly and accurately.

2Study the age and certification rules carefully: 21 to take ADX, 23 for the certificate, plus either qualifying experience or an approved dispatcher course.

3Practice dispatch-release scenarios instead of memorizing isolated facts. Alternate, fuel, route, performance, and weather decisions are easiest to retain when studied together.

4Review IFR charts, airway structure, airport data, and ATC procedures until you can explain why a route, altitude, or alternate is operationally sound.

5Treat aircraft performance and loading as dispatch problems, not pilot-only topics. Weight and balance, runway limits, climb performance, and abnormal conditions all affect release decisions.

6Use timed sets before scheduling. The real test allows 210 minutes for 80 questions, so you need both technical depth and steady pacing.

Frequently Asked Questions

How many questions are on the FAA ADX knowledge test?

The FAA testing matrix lists the ADX knowledge test at 80 questions with 3.5 hours allowed. The passing standard is 70 percent. The exam is delivered as a computer-based FAA Airman Knowledge Test through PSI.

Can you take the ADX knowledge test before age 23?

Yes. Under 14 CFR 65.53, you must be at least 21 years old to take the aircraft dispatcher knowledge test, but you must be at least 23 to be eligible for the aircraft dispatcher certificate itself. That distinction matters for candidates who want to complete ADX early while finishing experience or training requirements.

What experience or training do you need for the aircraft dispatcher certificate?

14 CFR 65.57 allows two main paths. You can present qualifying experience from the prior 3 years in approved aviation roles, or you can present a statement of graduation from an approved aircraft dispatcher course. The course itself must cover Appendix A topics and include at least 200 hours under 14 CFR 65.61.

Does the FAA publish official ADX percentage domain weights?

Not publicly in the same way many professional exams publish scored percentages. The FAA publishes the required knowledge areas in 14 CFR 65.55 and the broader dispatcher-course domains in Appendix A to Part 65, but it does not publish a public scored ADX percentage blueprint. For study planning, candidates should assume the heaviest emphasis falls on weather interpretation and practical dispatch decision making.

What is the current FAA ADX test fee?

PSI's FAA Airman Knowledge Testing site lists the standard Airman Knowledge Test fee as $175, with a note that price may vary by testing location. You schedule and pay through the FAA/PSI testing portal rather than directly through the FAA.

What changed recently for the ADX exam?

As of the FAA Airman Testing Community Advisory dated February 27, 2026, I did not find a new ADX-specific blueprint change announcement. The latest explicit ADX change I found in FAA testing advisories is the November 2024 special edition, which said 10 ADX questions were revised or replaced while the blueprint remained unchanged. That same advisory also referenced the incorporated-by-reference rule changes that became effective on May 31, 2024.