AFOQT Study Guide questions and answers with
solutions 2025
Absolute Accuracy - ANSWER The ability to determine present position in space independently,
and is most often used by pilots.
Absolute Altitude - ANSWER The actual distance between an aircraft and the terrain over which
it is flying.
Absolute Pressure - ANSWER Pressure measured from the reference of zero pressure, or a
vacuum.
Acceleration error - ANSWER A magnetic compass error apparent when the aircraft accelerates
while flying on an easterly or westerly heading, causing the compass card to rotate toward
North.
Accelerate-go distance - ANSWER The distance required to accelerate to V1 with all engines at
takeoff power, experience an engine failure at V1, and continue the takeoff on the remaining
engine(s). The runway required includes the distance required to climb to 35 feet by which time
V2 speed must be attained.
Accelerate-stop distance - ANSWER The distance required to accelerate to V1 with all engines at
takeoff power, experience an engine failure at V1, and abort the takeoff and bring the airplane
to a stop using braking action only (use of thrust reversing is not considered).
Accelerometer - ANSWER A part of an inertial navigation system (INS) that accurately measures
the force of acceleration in one direction.
Adjustable-pitch propeller - ANSWER A propeller with blades whose pitch can be adjusted on
the ground with the engine not running, but which cannot be adjusted in flight. Also referred to
as a ground adjustable propeller. Sometimes also used to refer to constant-speed propellers that
are adjustable in flight.
,Adjustable stabilizer - ANSWER A stabilizer that can be adjusted in flight to trim the airplane,
thereby allowing the airplane to fly hands-off at any given airspeed.
Advection fog - ANSWER Fog resulting from the movement of warm, humid air over a cold
surface.
Adverse yaw - ANSWER A condition of flight in which the nose of an airplane tends to yaw
toward the outside of the turn. This is caused by the higher induced drag on the outside wing,
which is also producing more lift. Induced drag is a by-product of the lift associated with the
outside wing.
Aerodynamics - ANSWER The science of the action of air on an object, and with the motion of
air on other gases. Aerodynamics deals with the production of lift by the aircraft, the relative
wind, and the atmosphere.
Aeronautical chart - ANSWER A map used in air navigation containing all or part of the
following: topographic features, hazards and obstructions, navigation aids, navigation routes,
designated airspace, and airports.
Aeronautical decision-making (ADM) - ANSWER A systematic approach to the mental process
used by pilots to consistently determine the best course of action in response to a given set of
circumstances.
Agonic line - ANSWER An irregular imaginary line across the surface of the Earth along which
the magnetic and geographic poles are in alignment, and along which there is no magnetic
variation.
Ailerons - ANSWER Primary flight control surfaces mounted on the trailing edge of an airplane
wing, near the tip. Ailerons control roll about the longitudinal axis.
,Aircraft altitude - ANSWER The actual height above sea level at which the aircraft is flying.
Aircraft approach category - ANSWER A performance grouping of aircraft based on a speed of
1.3 times the stall speed in the landing configuration at maximum gross landing weight.
Air Data Computer (ADC) - ANSWER An aircraft computer that receives and processes pitot
pressure, static pressure, and temperature to calculate very precise altitude, indicated airspeed,
true airspeed, and air temperature.
Airfoil - ANSWER Any surface, such as a wing, which provides aerodynamic force when it
interacts with a moving stream of air.
AIRMET - ANSWER Inflight weather advisory issued as an amendment to the area forecast,
concerning weather phenomena of operational interest to all aircraft and that is potentially
hazardous to aircraft with limited capability due to lack of equipment, instrumentation, or pilot
qualifications.
Airport Diagram - ANSWER The section of an instrument approach procedure chart that shows a
detailed diagram of the airport. This diagram includes surface features and airport configuration
information.
Airport markings - ANSWER
Airport signs - ANSWER
Airport Surface Detection Equipment (ASDE) - ANSWER Radar equipment specifically designed
to detect all principal features and traffic on the surface of an airport, presenting the entire
image on the control tower console; used to augment visual observation by tower personnel of
aircraft and/or vehicular movements on runways and taxiways.
, Airport surveillance radar (ASR) - ANSWER Approach control radar used to detect and display an
aircraft's position in the terminal area.
Airport surveillance radar approach - ANSWER An instrument approach in which ATC issues
instructions for pilot compliance based on aircraft position in relation to the final approach
course and the distance from the end of the runway as displayed on the controller's radar
scope.
Air route surveillance radar (ARSR) - ANSWER Air route traffic control center (ARTCC) radar used
primarily to detect and display an aircraft's position while en route between terminal areas.
Air Route Traffic Control Center (ARTCC) - ANSWER Provides ATC service to aircraft operating on
IFR flight plans within controlled airspace and principally during the en route phase of flight.
Airspeed - ANSWER Rate of the aircraft's progress through the air.
Airspeed Indicator - ANSWER A differential pressure gauge that measures the dynamic pressure
of the air through which the aircraft is flying. Displays the craft's airspeed, typically in knots, to
the pilot.
Air traffic control radar beacon system (ATCRBS) - ANSWER Sometimes called secondary
surveillance radar (SSR), which utilizes a transponder in the aircraft. The ground equipment is an
interrogating unit, in which the beacon antenna is mounted so it rotates with the surveillance
antenna. The interrogating unit transmits a coded pulse sequence that actuates the aircraft
transponder. The transponder answers the coded sequence by transmitting a preselected coded
sequence back to the ground equipment, providing a strong return signal and positive aircraft
identification, as well as other special data.
solutions 2025
Absolute Accuracy - ANSWER The ability to determine present position in space independently,
and is most often used by pilots.
Absolute Altitude - ANSWER The actual distance between an aircraft and the terrain over which
it is flying.
Absolute Pressure - ANSWER Pressure measured from the reference of zero pressure, or a
vacuum.
Acceleration error - ANSWER A magnetic compass error apparent when the aircraft accelerates
while flying on an easterly or westerly heading, causing the compass card to rotate toward
North.
Accelerate-go distance - ANSWER The distance required to accelerate to V1 with all engines at
takeoff power, experience an engine failure at V1, and continue the takeoff on the remaining
engine(s). The runway required includes the distance required to climb to 35 feet by which time
V2 speed must be attained.
Accelerate-stop distance - ANSWER The distance required to accelerate to V1 with all engines at
takeoff power, experience an engine failure at V1, and abort the takeoff and bring the airplane
to a stop using braking action only (use of thrust reversing is not considered).
Accelerometer - ANSWER A part of an inertial navigation system (INS) that accurately measures
the force of acceleration in one direction.
Adjustable-pitch propeller - ANSWER A propeller with blades whose pitch can be adjusted on
the ground with the engine not running, but which cannot be adjusted in flight. Also referred to
as a ground adjustable propeller. Sometimes also used to refer to constant-speed propellers that
are adjustable in flight.
,Adjustable stabilizer - ANSWER A stabilizer that can be adjusted in flight to trim the airplane,
thereby allowing the airplane to fly hands-off at any given airspeed.
Advection fog - ANSWER Fog resulting from the movement of warm, humid air over a cold
surface.
Adverse yaw - ANSWER A condition of flight in which the nose of an airplane tends to yaw
toward the outside of the turn. This is caused by the higher induced drag on the outside wing,
which is also producing more lift. Induced drag is a by-product of the lift associated with the
outside wing.
Aerodynamics - ANSWER The science of the action of air on an object, and with the motion of
air on other gases. Aerodynamics deals with the production of lift by the aircraft, the relative
wind, and the atmosphere.
Aeronautical chart - ANSWER A map used in air navigation containing all or part of the
following: topographic features, hazards and obstructions, navigation aids, navigation routes,
designated airspace, and airports.
Aeronautical decision-making (ADM) - ANSWER A systematic approach to the mental process
used by pilots to consistently determine the best course of action in response to a given set of
circumstances.
Agonic line - ANSWER An irregular imaginary line across the surface of the Earth along which
the magnetic and geographic poles are in alignment, and along which there is no magnetic
variation.
Ailerons - ANSWER Primary flight control surfaces mounted on the trailing edge of an airplane
wing, near the tip. Ailerons control roll about the longitudinal axis.
,Aircraft altitude - ANSWER The actual height above sea level at which the aircraft is flying.
Aircraft approach category - ANSWER A performance grouping of aircraft based on a speed of
1.3 times the stall speed in the landing configuration at maximum gross landing weight.
Air Data Computer (ADC) - ANSWER An aircraft computer that receives and processes pitot
pressure, static pressure, and temperature to calculate very precise altitude, indicated airspeed,
true airspeed, and air temperature.
Airfoil - ANSWER Any surface, such as a wing, which provides aerodynamic force when it
interacts with a moving stream of air.
AIRMET - ANSWER Inflight weather advisory issued as an amendment to the area forecast,
concerning weather phenomena of operational interest to all aircraft and that is potentially
hazardous to aircraft with limited capability due to lack of equipment, instrumentation, or pilot
qualifications.
Airport Diagram - ANSWER The section of an instrument approach procedure chart that shows a
detailed diagram of the airport. This diagram includes surface features and airport configuration
information.
Airport markings - ANSWER
Airport signs - ANSWER
Airport Surface Detection Equipment (ASDE) - ANSWER Radar equipment specifically designed
to detect all principal features and traffic on the surface of an airport, presenting the entire
image on the control tower console; used to augment visual observation by tower personnel of
aircraft and/or vehicular movements on runways and taxiways.
, Airport surveillance radar (ASR) - ANSWER Approach control radar used to detect and display an
aircraft's position in the terminal area.
Airport surveillance radar approach - ANSWER An instrument approach in which ATC issues
instructions for pilot compliance based on aircraft position in relation to the final approach
course and the distance from the end of the runway as displayed on the controller's radar
scope.
Air route surveillance radar (ARSR) - ANSWER Air route traffic control center (ARTCC) radar used
primarily to detect and display an aircraft's position while en route between terminal areas.
Air Route Traffic Control Center (ARTCC) - ANSWER Provides ATC service to aircraft operating on
IFR flight plans within controlled airspace and principally during the en route phase of flight.
Airspeed - ANSWER Rate of the aircraft's progress through the air.
Airspeed Indicator - ANSWER A differential pressure gauge that measures the dynamic pressure
of the air through which the aircraft is flying. Displays the craft's airspeed, typically in knots, to
the pilot.
Air traffic control radar beacon system (ATCRBS) - ANSWER Sometimes called secondary
surveillance radar (SSR), which utilizes a transponder in the aircraft. The ground equipment is an
interrogating unit, in which the beacon antenna is mounted so it rotates with the surveillance
antenna. The interrogating unit transmits a coded pulse sequence that actuates the aircraft
transponder. The transponder answers the coded sequence by transmitting a preselected coded
sequence back to the ground equipment, providing a strong return signal and positive aircraft
identification, as well as other special data.
