FAA Aircraft Dispatcher (ADX) practice questions
240 free questions with answers and explanations.
- 151.A Part 121 two-engine turbojet operator's OpSpecs contain no authorized takeoff minimums for a specific airport. Per 14 CFR 121.651, what is the default takeoff visibility minimum that applies?Flight Planning and Performance
- 152.Under 14 CFR definitions applicable to Part 121 operations, at what distance from the nearest shoreline does an operation become classified as 'extended overwater,' triggering equipment requirements such as life rafts under 14 CFR 121.339?Flight Planning and Performance
- 153.An aircraft is conducting an RNAV (GPS) approach and the approach chart displays LPV minimums. What does LPV rely on to provide vertical guidance comparable to an ILS glideslope?Navigation and ATC
- 154.A dispatcher discovers that the ILS minimums at the destination have been temporarily raised due to construction affecting the approach lighting system. In which type of NOTAM would this information be published?Flight Planning and Performance
- 155.Under 14 CFR 121.319, a crewmember interphone system is required to connect the flight crew compartment with which location(s)?Regulations (Part 121)
- 156.An aircraft is planned to hold for 45 minutes at a fuel flow of 6,000 pounds per hour. How much fuel should be planned for the holding requirement?Flight Planning and Performance
- 157.An aircraft's leading edge of the mean aerodynamic chord (LEMAC) is located at fuselage station 400, and the mean aerodynamic chord (MAC) length is 100 inches. If the calculated center of gravity is at fuselage station 435, what is the CG expressed as %MAC?Flight Planning and Performance
- 158.A turbojet climbs from sea level to FL350 while the pilot maintains a constant calibrated airspeed (CAS) of 250 knots. As altitude increases, what happens to the aircraft's true airspeed (TAS)?Flight Planning and Performance
- 159.A Part 121 airplane's cargo compartment is equipped with an approved built-in fire or smoke detection system and a built-in fire extinguishing or suppression system controllable from the flight crew compartment. Under 14 CFR 121.219, this compartment meets the requirements for which class of cargo/baggage compartment?Regulations (Part 121)
- 160.A dispatcher receives the following report: 'UUA/OV DEN180040/TM 1830/FLUNKN/TP B737/WX FV00SM +TSRA GR1 1/2/TB SEV/RM HAIL DAMAGE.' What element of this report indicates that it requires priority handling and immediate distribution to affected aircraft?Meteorology
- 161.A dispatcher notes that a light easterly wind is pushing moist, stable marine air up the windward slopes of coastal hills near an airport, and low stratus is forming as the air cools adiabatically during ascent. What type of fog is most likely forming?Meteorology
- 162.For ETOPS flight planning, the 'critical fuel scenario' requires the dispatcher to calculate fuel assuming which combination of events occurs simultaneously at the most critical point along the route?Flight Planning and Performance
- 163.A dispatcher is planning a flight that will cross a mountain range where surface winds are forecast at 35 knots nearly perpendicular to the ridge line, with a stable air mass aloft. What condition should the dispatcher expect on the lee side of the range?Meteorology
- 164.A tropical cyclone advisory reports maximum sustained surface winds of 115 knots. Using the Saffir-Simpson Hurricane Wind Scale, into which category does this storm fall?Meteorology
- 165.A dispatcher is comparing two icing reports. One flight in a shallow stratus deck reports freezing drizzle with no rain reported at any altitude, while another flight through the same region encountered freezing rain below a warm frontal surface. What atmospheric structure most likely explains the freezing drizzle report as distinct from the freezing rain encounter?Meteorology
- 166.A pilot submits a PIREP reporting moderate turbulence at FL280. What is the primary purpose of this report to the National Airspace System?Navigation and ATC
- 167.A dispatcher is reviewing conditions at a coastal airport during a clear, calm summer afternoon. Surface winds shift from a light offshore flow in the early morning to a steady onshore flow by early afternoon. What phenomenon explains this daily wind shift?Meteorology
- 168.A dispatcher is reviewing company policy on passenger use of portable electronic devices (PEDs) under 14 CFR 121.306. Which statement correctly reflects this regulation?Regulations (Part 121)
- 169.An aircraft is established in a holding pattern and rolls into a standard rate turn. Approximately how long will it take to complete the 180° turn from the outbound leg to the inbound leg?Navigation and ATC
- 170.A Part 121 turbine-powered airplane is cruising at FL350. Under 14 CFR 121.578, what is the maximum allowable cabin ozone concentration at any time while operating above FL320?Regulations (Part 121)
- 171.A dispatcher is computing landing performance for a turbojet airplane arriving at its destination. Under 14 CFR 121.195, the airplane's landing weight must allow it to be brought to a full stop within what percentage of the effective runway length, based on weather reports and forecasts existing at time of arrival?Regulations (Part 121)
- 172.A dispatcher reviewing a surface analysis chart notices a fast-moving front with a steep pressure gradient, a narrow band of towering cumulus and cumulonimbus clouds, and brief but heavy showers along its leading edge. What type of front is depicted?Meteorology
- 173.A dispatcher reviewing satellite imagery near a mountain range identifies smooth, stationary, lens-shaped clouds downwind of the peaks despite strong winds aloft. What condition do these clouds most likely indicate?Meteorology
- 174.A dispatcher is reviewing a Victor airway segment between two VORs spaced 90 NM apart with no charted changeover point (COP). At what point along the segment should a pilot normally change navigation reliance from the departure VOR to the destination VOR?Navigation and ATC
- 175.An aircraft on an instrument approach reaches the Missed Approach Point (MAP) without the required visual references to land. What is the pilot required to do?Navigation and ATC
- 176.A pilot is inbound to a Class D airport and tunes in the automated broadcast prior to contacting the tower. What is the primary purpose of this broadcast?Navigation and ATC
- 177.ATC issues a clearance stating, 'Clearance void if not off by 1450, if not off by 1450 advise Denver Center of intentions no later than 1500 via telephone at 303-555-0134.' The aircraft fails to depart by 1450. What must the pilot do?Navigation and ATC
- 178.During cruise, a Part 121 flight crew advises ATC, 'We're minimum fuel.' Per the AIM, what does this phraseology indicate?Flight Planning and Performance
- 179.While reviewing hazardous weather advisories, a dispatcher sees a report describing a line of thunderstorms 70 nautical miles long, with thunderstorms occupying 45 percent of the line's length, expected to persist for over an hour. Which advisory criteria does this meet?Meteorology
- 180.A Part 121 flag operation is planned in a two-engine turbojet airplane. The destination forecast calls for a 2,000-foot broken ceiling and 4 statute miles visibility for the period from 1 hour before to 1 hour after the ETA. The lowest applicable visibility minimum for the available instrument approach is 3/4 statute mile, and there is no acceptable circling MDA published. Under 14 CFR 121.621, is a destination alternate required?Regulations (Part 121)
- 181.A METAR remarks section includes 'PK WND 31045/1638'. How should a dispatcher interpret this remark?Meteorology
- 182.During a periodic VOR accuracy check using a VOT (VOR Test Facility), the CDI centers with a 358° radial displayed with a FROM indication. What is the maximum allowable error for this check to be considered satisfactory?Navigation and ATC
- 183.An aircraft is cleared to hold at a fix on a bearing of 090° inbound, with right turns. The aircraft is approaching the fix from the northwest on a heading of approximately 135°. Which holding pattern entry procedure should the pilot use?Navigation and ATC
- 184.A dispatcher selects the Long Range Cruise (LRC) speed schedule for a flight instead of the maximum specific range speed. What is the primary reason for this selection?Flight Planning and Performance
- 185.Under 14 CFR 121.571, when must flight attendants (or the pilot in command if no flight attendant is required) orally brief passengers on the location and means of opening emergency exits?Regulations (Part 121)
- 186.A temperature sounding shows the environmental lapse rate through a saturated cloud layer is 2.5°C per 1,000 feet. Given that the average moist adiabatic lapse rate is about 1.5°C per 1,000 feet and the dry adiabatic lapse rate is 3°C per 1,000 feet, this atmospheric layer is best classified as:Meteorology
- 187.A dispatcher plans a long-range flight using a 'step climb' profile rather than a single cruise altitude. What is the primary purpose of this technique?Flight Planning and Performance
- 188.A flight is being planned to fly an RNAV (GPS) approach at an airport with no other approved means of navigation available as a backup. The aircraft's GPS receiver does not have WAAS capability. What must the dispatcher and pilot verify prior to the flight to comply with FAA guidance?Navigation and ATC
- 189.An aircraft has flown 60 NM from a VOR and determines it is 6 NM to the right of the intended course. The pilot wants to correct back to parallel the course AND converge to re-intercept the course line over a fix located 30 NM further ahead. Using the 60-to-1 rule, what total heading correction (in degrees) should be applied?Flight Planning and Performance
- 190.A dispatcher is planning a Part 121 flag operation under IFR. Under 14 CFR 121.645, in addition to fuel to fly to the destination and then to the alternate, what additional fuel reserve must be carried?Regulations (Part 121)
- 191.A pilot report describes turbulence that causes definite strains against the seat belt or shoulder harness, unsecured objects are dislodged, and occupants feel a definite variation in altitude and/or attitude, but the aircraft remains in positive control at all times. How should this turbulence be classified according to standard PIREP reporting criteria?Meteorology
- 192.A dispatcher analyzing a surface analysis chart notes an occluded front where the air behind the front, at the surface, is warmer than the air ahead of the front. How should this occlusion be classified?Meteorology
- 193.A dispatcher observes on satellite and radar imagery precipitation shafts that appear to descend from cloud bases but evaporate before reaching the ground. This phenomenon is known as:Meteorology
- 194.A 22-year-old applicant with strong aviation experience wants to obtain an FAA Aircraft Dispatcher Certificate. Under 14 CFR Part 65, what is the primary reason this applicant cannot yet be issued the certificate?Regulations (Part 121)
- 195.A dispatcher notes a current wind report giving a crosswind component of 28 knots gusting to 35 knots for the runway in use. The aircraft's AFM lists a maximum demonstrated crosswind component of 33 knots. Which statement is correct regarding dispatch of the flight?Flight Planning and Performance
- 196.A dispatcher is verifying a first officer's flight currency prior to scheduling a passenger-carrying trip. Records show the pilot's last takeoffs and landings in the same aircraft type occurred 95 days ago, with no simulator credit since. Under 14 CFR 121.439, may this pilot be scheduled to serve as SIC on a passenger-carrying flight?Regulations (Part 121)
- 197.During boarding of a Part 121 flight, a flight attendant notices a passenger's carry-on bag sitting in the aisle directly in front of an emergency exit. Under 14 CFR 121.589, what must happen before departure?Regulations (Part 121)
- 198.A dispatcher is planning a flight to an airport served only by nonprecision approaches. If no alternate minimums are published for that airport, what are the standard IFR alternate weather minimums that must be forecast for the ETA?Flight Planning and Performance
- 199.A Part 121 two-engine turbojet airplane is preparing to depart from an airport where the weather is below the landing minimums specified in the certificate holder's operations specifications for that airport. Under 14 CFR 121.617, within what distance must a takeoff alternate airport be located?Regulations (Part 121)
- 200.Using the standard 3-to-1 descent planning rule, a dispatcher is estimating the top of descent (TOD) point for a flight cruising at FL350 en route to a sea-level destination airport. An additional 10 nautical miles is added for deceleration and level-off. At approximately what distance (in nautical miles) from the destination should descent begin?Flight Planning and Performance