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FAA Aircraft Dispatcher (ADX) practice questions

240 free questions with answers and explanations.

Practice test
  1. 51.A dispatcher notes a low-level wind shear alert for the destination airport, with a reported 20-knot airspeed loss on final approach. What is the primary hazard this presents to the flight?Flight Planning and Performance
  2. 52.A dispatcher calculates that a turbojet's accelerate-stop distance required (ASDR) is 8,200 feet and its accelerate-go distance required (all-engine takeoff distance continuing after an engine failure) is 7,600 feet. The runway available is 8,000 feet with no stopway or clearway. Which statement correctly describes the required action?Flight Planning and Performance
  3. 53.Under 14 CFR 121.99, a certificate holder's dispatch system must be capable of providing which of the following for flights en route?Regulations (Part 121)
  4. 54.A Part 121 flight is on an ILS approach to the destination airport. Just prior to reaching the final approach fix, the tower reports visibility below the minimums published for that approach. Under 14 CFR 121.651, may the flight crew continue the approach?Regulations (Part 121)
  5. 55.A dispatcher is planning a Part 121 domestic IFR flight and checking whether a destination alternate airport is required under 14 CFR 121.619. Under what forecast weather condition at the destination is an alternate NOT required?Regulations (Part 121)
  6. 56.An aircraft's heading indicator fails while being vectored for a surveillance approach in IMC. How does ATC assist the pilot in maintaining approach guidance under a no-gyro approach?Navigation and ATC
  7. 57.A dispatcher is flight planning a jet that will cruise at FL200 over the contiguous United States. Per 14 CFR Part 71, what class of airspace exists at this altitude?Navigation and ATC
  8. 58.A Part 121 certificate holder operates an airplane with a maximum approved seating capacity of 137 passengers. Under 14 CFR 121.391, what is the minimum number of flight attendants required?Regulations (Part 121)
  9. 59.A dispatcher notes that surface temperature at the departure airport is significantly higher than standard for the field elevation. All other factors being equal, how will this affect the airplane's required takeoff distance?Flight Planning and Performance
  10. 60.A dispatcher determines that the maximum allowable takeoff weight for a twin-engine turbojet is not limited by runway length or obstacle clearance, but by the aircraft's ability to meet the minimum required climb gradient with one engine inoperative during the second segment. This limiting weight is referred to as the:Flight Planning and Performance
  11. 61.A Part 121 dispatcher is selecting weather information to include in the flight release. Under 14 CFR 121.101, weather reports and forecasts used for dispatch purposes must be prepared and issued by which source?Regulations (Part 121)
  12. 62.An unsaturated air parcel at the surface has a temperature of 30°C. Using the dry adiabatic lapse rate, what temperature would the parcel have after rising to 5,000 feet, assuming it remains unsaturated throughout the ascent?Meteorology
  13. 63.A VFR pilot plans to transit Class B airspace surrounding a major hub airport. Per 14 CFR 91.131, what must occur before the aircraft may enter that airspace?Navigation and ATC
  14. 64.A dispatcher is evaluating an arrival airport report showing a strong low-level temperature inversion with a marked change in wind speed and direction between the surface and 2,000 feet. This scenario is most likely to produce which hazard on approach?Meteorology
  15. 65.A METAR remarks section describes an observed cloud layer as nimbostratus with continuous moderate rain, though the reported base has lowered to near 800 feet AGL due to precipitation. Despite this low observed base, into which cloud family is nimbostratus classified according to standard cloud classification?Meteorology
  16. 66.An aircraft is flying a published DME arc transition to an instrument approach. Which technique is used to maintain the aircraft on the arc while tracking around the fix?Navigation and ATC
  17. 67.A dispatcher is reviewing overnight conditions for a departure airport. Which combination of conditions is most favorable for the formation of radiation fog?Meteorology
  18. 68.A dispatcher reviews a surface observation showing a temperature of 20°C and dew point of 18°C shortly after sunset, with the temperature/dew point spread continuing to narrow as the evening progresses. What does this trend most likely indicate for the airport?Meteorology
  19. 69.A dispatcher is planning an approach into an airport reporting a surface temperature of -30°C, well below the ISA standard. With the altimeter set to the current local setting, the aircraft's true altitude at a given indicated altitude will be:Flight Planning and Performance
  20. 70.A pressurized Part 121 airplane cruises for 45 minutes at a cabin pressure altitude of 13,000 feet MSL. Under 14 CFR 121.333, what is the minimum supplemental oxygen requirement?Regulations (Part 121)
  21. 71.A dispatcher receives a pilot report describing steady light rain, stratus cloud layers, and a smooth ride with restricted visibility due to haze. This report is most indicative of what type of air mass?Meteorology
  22. 72.A pilot report (PIREP) indicates an outside air temperature of +4°C at 4,000 feet MSL and −2°C at 8,000 feet MSL, with a linear temperature change between the two altitudes. Assuming a standard lapse rate is not used and interpolating directly from the PIREP data, at approximately what altitude should the dispatcher expect the freezing level?Meteorology
  23. 73.A dispatcher is calculating the Point of No Return (PNR) for an overwater flight with a safe fuel endurance of 5.0 hours. The ground speed proceeding outbound is 280 knots, and the ground speed returning to the departure airport is 320 knots. What is the flight time from departure to the PNR?Flight Planning and Performance
  24. 74.A Part 121 domestic air carrier schedules a flight with two pilots and no augmented crew. Under 14 CFR 121.471, what is the maximum scheduled flight time permitted for these pilots in any 24 consecutive hours without a required rest period?Regulations (Part 121)
  25. 75.During cruise flight on a Part 121 flight, the pilot in command experiences a shutdown of one engine due to mechanical failure. Under 14 CFR 121.565, what is the PIC required to do?Regulations (Part 121)
  26. 76.During cruise flight, a Part 121 crew experiences an in-flight engine shutdown due to an uncontained engine failure. Under 14 CFR 121.703, within what time period must the certificate holder notify the FAA of this occurrence?Regulations (Part 121)
  27. 77.A dispatcher notes that the jet stream along the planned route is unusually strong and associated with a sharp temperature gradient at the tropopause. What hazard is most closely associated with this feature?Meteorology
  28. 78.A Part 121 turbine-powered airplane is equipped with a digital flight data recorder (FDR) installed to comply with 14 CFR 121.343. What is the minimum duration of flight data that the recorder must be capable of retaining?Regulations (Part 121)
  29. 79.A dispatcher is planning an overwater flight between two points located at the same latitude but separated by a large difference in longitude, away from the equator. Which statement correctly compares the great circle route to the rhumb line route?Flight Planning and Performance
  30. 80.A dispatcher is briefing a flight crew on surface wind flow around pressure systems in the Northern Hemisphere. How does surface wind circulate around a low-pressure system compared to a high-pressure system, accounting for friction?Meteorology
  31. 81.During cruise flight, a PIC encounters a sudden in-flight emergency requiring an immediate deviation from an ATC clearance and company operating procedures to ensure safety. Under 14 CFR 121.557, what authority does the PIC have, and what follow-up action may be required?Regulations (Part 121)
  32. 82.An aircraft is being vectored by ATC to intercept the final approach course for an ILS approach and is issued the clearance 'cleared for the ILS Runway 27 approach' without any mention of a procedure turn. Is a procedure turn required in this scenario?Navigation and ATC
  33. 83.An aircraft is operating in Reduced Vertical Separation Minimum (RVSM) airspace at FL350. What is the standard vertical separation required between this aircraft and another aircraft operating at FL360 within RVSM airspace?Navigation and ATC
  34. 84.An RNAV STAR depicts the missed approach point of the connecting instrument approach as a waypoint requiring the aircraft to overfly the point before beginning the turn. What type of RNAV waypoint is this?Navigation and ATC
  35. 85.An aircraft's final approach speed (Vref) is 132 knots. For the purpose of determining circling approach minimums, which approach category applies?Navigation and ATC
  36. 86.For a Part 121 domestic operation under IFR, 14 CFR 121.639 requires the aircraft to carry enough fuel to fly to the destination airport, then to the alternate (if required), and then for how much additional time at normal cruising fuel consumption?Regulations (Part 121)
  37. 87.A dispatcher is decoding a winds aloft forecast (FD) for FL390 and reads the coded group '731960'. What are the forecast wind direction, speed, and temperature?Meteorology
  38. 88.A dispatcher is planning a Part 121 flag (international) operation. Compared to a domestic operation under 121.639, how does the minimum fuel reserve requirement under 121.645 differ after arriving at the alternate?Flight Planning and Performance
  39. 89.A dispatcher is filing an alternate airport for a destination that has only a nonprecision approach available. Assuming no other minimums are specified for that airport, what ceiling and visibility must be forecast at the ETA to qualify as a legal alternate under the standard alternate minimums?Navigation and ATC
  40. 90.A dispatcher is filing an IFR flight plan for a flight above 3,000 feet AGL on a magnetic course of 095°. Per 14 CFR 91.179, which cruising altitude should be assigned?Flight Planning and Performance
  41. 91.During which stage of a thunderstorm's life cycle do updrafts and downdrafts coexist within the cell, with precipitation just beginning to reach the surface?Meteorology
  42. 92.A dispatcher is evaluating the effect of loading an aircraft near its forward CG limit rather than at a mid-CG position. Which statement correctly describes the effect on the airplane?Flight Planning and Performance
  43. 93.A dispatcher is monitoring the arrival sequence at a busy hub. A Cessna 172 (Small category) will be landing on the same runway immediately behind a Boeing 747 (Heavy category). Per FAA wake turbulence separation standards, what minimum radar separation is required between the two aircraft?Flight Planning and Performance
  44. 94.An aircraft is flying with a true airspeed of 240 knots. The wind is 25 knots striking the aircraft at a 60-degree angle relative to the course. What is the approximate wind correction angle required?Flight Planning and Performance
  45. 95.An IFR flight is operating on a non-radar route segment over remote terrain where ATC has advised the pilot to report over all compulsory reporting points. What information must be included in each position report?Navigation and ATC
  46. 96.A dispatcher is calculating the Equal Time Point (critical point) for an oceanic flight. The total distance between departure and destination is 1,400 NM. The groundspeed continuing to destination is 440 knots, and the groundspeed if the aircraft turned back to the departure airport is 500 knots. What is the approximate distance from the departure airport to the ETP?Navigation and ATC
  47. 97.A dispatcher is determining maximum payload for a flight. The aircraft's Operating Empty Weight (OEW) is 95,000 pounds, Maximum Zero Fuel Weight (MZFW) is 140,000 pounds, and Maximum Takeoff Weight (MTOW) is 175,000 pounds. Fuel required for the flight is 30,000 pounds. What is the maximum payload that can be carried?Flight Planning and Performance
  48. 98.A dispatcher is reviewing the width of a Victor airway for enroute fuel and obstacle clearance planning. What is the standard width of a VOR federal airway?Navigation and ATC
  49. 99.An FAA POI is reviewing a Part 121 certificate holder's maintenance program. Under 14 CFR 121.373, what system must the certificate holder maintain to continuously monitor and improve its inspection and maintenance program?Regulations (Part 121)
  50. 100.A tower controller reports the Runway Visual Range (RVR) for Runway 27L as 4000. What is the approximate equivalent visibility in statute miles for planning purposes?Navigation and ATC