Correctly Verified Solutions for Officer Aptitude,
Aviation Information, Arithmetic & Reading Skills
2025/2026
Altimeter - correct answer a flight instrument that indicates altitude by
sensing pressure changes.
Altimeter setting - correct answer 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 - correct answer a reciprocating aircraft engine having a
rated takeoff power that is producible from sea level to an established
higher altitude
Aneroid - correct answer 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 - correct answer 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 - correct answer the angle of attack is the angle at which
relative wind meets and airfoil. It is the angle that is formed by the chord of
the airfoil and the direction of the relative wind or between the chord line
and the flight path. The angle of attack changes during a flight as the pilot
changes the direction of the aircraft and is related to the amount of lift being
produced
,Angle of incidence - correct answer the acute angle formed between the
chord line of an airfoil and the longitudinal axis of the aircraft on which it is
mounted
Anhedral - correct answer a downward slant from root to tip of an aircraft's
wing or horizontal tail surface
Antiservo tab - correct answer an adjustable tab attached to the trailing
edge of a stabliator that moves in the same direction as the primary control.
It is used to make the stabilator less sensitive
Area chart - correct answer part of the low-altitude en route chart series,
this chart furnishes terminal data at a larger scale for congested areas
Area forecast (fa) - correct answer 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) - correct answer allows a pilot to fly a selected
course to a predetermined point without the need to overfly ground-based
navigation facilities, by using waypoints
Automated surface observing system (asos) - correct answer weather
reporting system consisting of various sensors, a processor, a computer-
generated voice subsystem, and a transmitter to broadcast weather data.
Aspect ratio - correct answer span of a wing divided by its average chord
,Asymmetric thrust - correct answer 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 attitude in
relation to the relative wind. The p-factor would be to the right if the aircraft
had a counterclockwise rotating propeller.
Atc - correct answer air traffic control
Automatic terminal information service (atis) - correct answer the
continuous broadcast of recorded non-control information in selected
terminal areas. Its purpose is to improve controller effectiveness and
relieve frequency congestion by automating repetitive transmission of
essential but routine information
Attitude and heading reference system (ahrs) - correct answer a system
composed of three-axis sensors that provide heading, attitude, and yaw
information for aircraft. Ahrs are designed to replace traditional mechanical
gyroscopic flight instruments and provide superior reliability and accuracy
Attitude indicator - correct answer the foundation for all instrument flight,
this instrument reflects the airplane's attitude in relation to the horizon.
Attitude instrument flying - correct answer controlling the aircraft by
reference to the instruments rather than by outside visual cues.
Autokinesis - correct answer nighttime visual illusion that a stationary light
is moving, which becomes apparent after several seconds of staring at the
light
, Axes of an aircraft - correct answer three imaginary lines that pass
through an aircraft's center of gravity. The axes can be considered as
imaginary axles around which the aircraft rotates. The three axes pass
through the center of gravity at 90 degree angles to each other. The axis
from nose to tail is the longitudinal axis (rolling), the axis from wingtip to
wingtip is the lateral axis (pitching), and the axis that passes vertically
through the center of gravity is the vertical axis (yawing).
Axial flow compressor - correct answer a type of compressor used in a
turbine engine in which the airflow through the compressor is essentially
linear. An axial-flow compressor is made up of several stages of alternate
rotors and stators. The compressor ratio is determined by the decrease in
area of the succeeding stages.
Back course (bc) - correct answer the reciprocal of the localizer course for
an ils. When flying a back course approach, an aircraft approaches the
instrument runway from the end at which the localizer antennas are
installed.
Balance tab - correct answer an auxiliary control mounted on a primary
control surface, which automatically moves in the direction opposite the
primary control to provide an aerodynamic assist in the movement of the
control.
Barometric scale - correct answer a scale on the dial of an altimeter to
which the pilot sets the barometric pressure level from which the altitude
shown by the pointers is measured
Basic empty weight (gama) - correct answer basic empty weight includes
the standard empty weight plus optional and special equpment that has
been installed.