AFOQT Study Guide Exam | 614 Questions and
Answers (Aviation Information)
Absolute Accuracy - -The ability to determine present position in space independently, and
is most often used by pilots.
-Absolute Altitude - -The actual distance between an aircraft and the terrain over which it
is flying.
-Absolute Pressure - -Pressure measured from the reference of zero pressure, or a
vacuum.
-Acceleration error - -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 - -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 - -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 - -A part of an inertial navigation system (INS) that accurately measures
the force of acceleration in one direction.
-Adjustable-pitch propeller - -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 - -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 - -Fog resulting from the movement of warm, humid air over a cold surface.
-Adverse yaw - -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 - -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 - -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) - -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 - -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 - -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 - -The actual height above sea level at which the aircraft is flying.
-Aircraft approach category - -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) - -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 - -Any surface, such as a wing, which provides aerodynamic force when it interacts
with a moving stream of air.
-AIRMET - -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 - -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 - -
-Airport signs - -
-Airport Surface Detection Equipment (ASDE) - -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) - -Approach control radar used to detect and display an
aircraft's position in the terminal area.
-Airport surveillance radar approach - -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) - -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) - -Provides ATC service to aircraft operating on
IFR flight plans within controlled airspace and principally during the en route phase of
flight.
-Airspeed - -Rate of the aircraft's progress through the air.
-Airspeed Indicator - -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) - -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.
-Airway - -An airway is based on a centerline that extends from one navigation aid or
intersection to another navigation aid (or through several navigation aids or intersections);
used to establish a known route for en route procedures between terminal areas.
-Alert Area - -An area in which there is a high volume of pilot training or an unusual type
of aeronautical activity.
-Alternate Airport - -An airport designated in an IFR flight plan, providing a suitable
destination if a landing at the intended airport becomes inadvisable.
-Alternate static source valve - -A valve in the instrument static air system that supplies
reference air pressure to the altimeter, airspeed indicator, and vertical speed indicator if
the normal static pickup should become clogged or iced over.
, -Altimeter - -A flight instrument that indicates altitude by sensing pressure changes.
-Altimeter setting - -Station pressure (the barometric pressure at the location the reading
is taken) which has been corrected for the height of the station above sea level.
-Altitude engine - -A reciprocating aircraft engine having a rated takeoff power that is
producible from sea level to an established higher altitude.
-Aneroid - -The sensitive component in an altimeter or barometer that measures the
absolute pressure of the air. It is a sealed, flat capsule made of thin disks of corrugated
metal soldered together and evacuated by pumping all of the air out of it.
-aneroid barometer - -An instrument that measures the absolute pressure of the
atmosphere by balancing the weight of the air above it against the spring action of the
aneroid.
-Angle of Attack - -The acute angle between the direction of the relative wind and the
chord of an airfoil.
-angle of incidence - -the acute angle formed between the chord line of an airfoil and the
longitudinal axis of the aircraft on which it is mounted.
-Anhedral - -A downward slant from root to tip of an aircraft's wing or horizontal tail
surface.
-Antiservo tab - -An adjustable tab attached to the trailing edge of a stabilator that moves
in the same direction as the primary control. It is used to make the stabilator less sensitive.
-Approach lighting system (ALS) - -Provides lights that will penetrate the atmosphere far
enough from touchdown to give directional, distance, and glidepath information for safe
transition from instrument to visual flight.
-Area Chart - -Part of the low-altitude en route chart series, this chart furnishes terminal
data at a larger scale for congested areas.
-Area Forecast (FA) - -A report that gives a picture of clouds, general weather conditions,
and visual meteorological conditions (VMC) expected over a large area encompassing
several states.
-Area Navigation (RNAV) - -Allows a pilot to fly a selected course to a predetermined point
without the need to overfly ground-based navigation facilities, by using waypoints.
-Asymmetric Thrust - -Also known as P-factor. A tendency for an aircraft to yaw to the left
due to the descending propeller blade on the right producing more thrust than the
ascending blade on the left. This occurs when the aircraft's longitudinal axis is in a climbing
Answers (Aviation Information)
Absolute Accuracy - -The ability to determine present position in space independently, and
is most often used by pilots.
-Absolute Altitude - -The actual distance between an aircraft and the terrain over which it
is flying.
-Absolute Pressure - -Pressure measured from the reference of zero pressure, or a
vacuum.
-Acceleration error - -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 - -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 - -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 - -A part of an inertial navigation system (INS) that accurately measures
the force of acceleration in one direction.
-Adjustable-pitch propeller - -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 - -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 - -Fog resulting from the movement of warm, humid air over a cold surface.
-Adverse yaw - -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 - -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 - -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) - -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 - -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 - -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 - -The actual height above sea level at which the aircraft is flying.
-Aircraft approach category - -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) - -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 - -Any surface, such as a wing, which provides aerodynamic force when it interacts
with a moving stream of air.
-AIRMET - -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 - -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 - -
-Airport signs - -
-Airport Surface Detection Equipment (ASDE) - -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) - -Approach control radar used to detect and display an
aircraft's position in the terminal area.
-Airport surveillance radar approach - -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) - -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) - -Provides ATC service to aircraft operating on
IFR flight plans within controlled airspace and principally during the en route phase of
flight.
-Airspeed - -Rate of the aircraft's progress through the air.
-Airspeed Indicator - -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) - -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.
-Airway - -An airway is based on a centerline that extends from one navigation aid or
intersection to another navigation aid (or through several navigation aids or intersections);
used to establish a known route for en route procedures between terminal areas.
-Alert Area - -An area in which there is a high volume of pilot training or an unusual type
of aeronautical activity.
-Alternate Airport - -An airport designated in an IFR flight plan, providing a suitable
destination if a landing at the intended airport becomes inadvisable.
-Alternate static source valve - -A valve in the instrument static air system that supplies
reference air pressure to the altimeter, airspeed indicator, and vertical speed indicator if
the normal static pickup should become clogged or iced over.
, -Altimeter - -A flight instrument that indicates altitude by sensing pressure changes.
-Altimeter setting - -Station pressure (the barometric pressure at the location the reading
is taken) which has been corrected for the height of the station above sea level.
-Altitude engine - -A reciprocating aircraft engine having a rated takeoff power that is
producible from sea level to an established higher altitude.
-Aneroid - -The sensitive component in an altimeter or barometer that measures the
absolute pressure of the air. It is a sealed, flat capsule made of thin disks of corrugated
metal soldered together and evacuated by pumping all of the air out of it.
-aneroid barometer - -An instrument that measures the absolute pressure of the
atmosphere by balancing the weight of the air above it against the spring action of the
aneroid.
-Angle of Attack - -The acute angle between the direction of the relative wind and the
chord of an airfoil.
-angle of incidence - -the acute angle formed between the chord line of an airfoil and the
longitudinal axis of the aircraft on which it is mounted.
-Anhedral - -A downward slant from root to tip of an aircraft's wing or horizontal tail
surface.
-Antiservo tab - -An adjustable tab attached to the trailing edge of a stabilator that moves
in the same direction as the primary control. It is used to make the stabilator less sensitive.
-Approach lighting system (ALS) - -Provides lights that will penetrate the atmosphere far
enough from touchdown to give directional, distance, and glidepath information for safe
transition from instrument to visual flight.
-Area Chart - -Part of the low-altitude en route chart series, this chart furnishes terminal
data at a larger scale for congested areas.
-Area Forecast (FA) - -A report that gives a picture of clouds, general weather conditions,
and visual meteorological conditions (VMC) expected over a large area encompassing
several states.
-Area Navigation (RNAV) - -Allows a pilot to fly a selected course to a predetermined point
without the need to overfly ground-based navigation facilities, by using waypoints.
-Asymmetric Thrust - -Also known as P-factor. A tendency for an aircraft to yaw to the left
due to the descending propeller blade on the right producing more thrust than the
ascending blade on the left. This occurs when the aircraft's longitudinal axis is in a climbing
