Free Aircraft Dispatcher Knowledge Exam Questions and Answers

For a domestic operation, what is the fuel requirement for a turbine-engine airplane under 14 CFR 121.639 when an alternate is required?

• AA. Fuel to fly to the destination plus 10 percent of the trip
• BB. Fuel to fly to the most distant alternate only
• CC. Fuel to fly to the destination plus 30 minutes
• DD. Fuel to fly to the destination, then to the most distant alternate, then 45 minutes at normal cruising consumption

Who shares joint responsibility for preflight planning, delay, and dispatch release in domestic and flag operations?

• AA. The pilot in command alone
• BB. The aircraft dispatcher alone
• CC. The pilot in command and the aircraft dispatcher
• DD. The director of operations

A destination alternate may be omitted from the dispatch release when weather reports and forecasts show, from 1 hour before to 1 hour after the ETA, at least:

• AA. A 2,000 ft ceiling above airport elevation and 3 SM visibility
• BB. A 3,000 ft ceiling and 5 SM visibility
• CC. A 1,500 ft ceiling and 3 SM visibility
• DD. A 1,000 ft ceiling and 2 SM visibility

For flag operations, after fuel for the flight to the destination and 10 percent of the flight time, then to the most distant alternate, what additional reserve is required?

• AA. 45 minutes at cruise
• BB. 15 minutes at holding speed
• CC. 1 hour at cruise
• DD. 30 minutes at holding speed at 1,500 ft above the alternate

Clear-air turbulence is most often encountered:

• AA. Only in cumulonimbus
• BB. In areas of strong wind shear near the jet stream core and tropopause
• CC. In fog layers
• DD. Within stable high-pressure air with no wind shear

A TAF contains the group TEMPO 1418 3SM TSRA BKN030CB. What does this mean?

• AA. A permanent change after 1400Z
• BB. A change lasting the full period from 1400 to 1800Z
• CC. A probability of 40 percent between 1400 and 1800Z
• DD. Temporary fluctuations between 1400 and 1800Z, each lasting less than 1 hour and covering less than half of the period

What sequence of wind effects will an aircraft on takeoff experience when penetrating a microburst centre?

• AA. Steady crosswind only
• BB. Increasing headwind, then downdraft, then decreasing headwind or tailwind
• CC. Updraft only
• DD. Tailwind, then downdraft, then headwind

Freezing rain at the surface indicates:

• AA. Cold air only above the surface
• BB. Snow that has melted in a deep cold layer
• CC. Rain falling through a below-freezing layer at the surface from a warmer layer aloft
• DD. No temperature inversion

On which chart projection does a straight line approximate a great circle?

• AA. Plate carree
• BB. Lambert conformal conic
• CC. Mercator
• DD. Transverse Mercator at any scale

A flight departs at 1530Z with an en route time of 2 hours 45 minutes. What is the local arrival time at a destination on UTC-5?

• AA. 1115
• BB. 1415
• CC. 1315
• DD. 2315