PRIVATE PILOT GROUND SCHOOL
VOCABULARY (C#1-4) EXAM
QUESTIONS AND ANSWERS
Airport Advisory Area - ANSWER-Extends 10 statute miles from airports with a flight
service station on the field, but no operating control tower.
Air Defense Identification Zone (ADIZ) - ANSWER-Established to facilitate
identification of all aircraft entering domestic U.S. airspace from outside the country.
Class A Airspace - ANSWER-Airspace extend from 18,000' MSL up to and including
FL 600; transponder required; IFR flight plane.
Class B Airspace - ANSWER-Established around very large major airports; two-way
radio communication; transponder with mode C.
Class C Airspace - ANSWER-Established around some busy airports with control
towers; two-way radio communication; transponder mode C.
Class D Airspace - ANSWER-Airspace at an airport with a part-time control tower;
two-way radio communication.
Lift - ANSWER-Upward force created by the effect of airflow as it passes over and
under the wing.
Weight - ANSWER-Opposes lift, is caused by the downward pull of gravity.
Thrust - ANSWER-Forward force which propels the airplane through the air.
Drag - ANSWER-Opposes thrust; retarding force which limits the speed of an
airplane.
Bernoulli's Principle - ANSWER-As the velocity of a fluid (air) increases, it's internal
pressure decreases.
Airfoil - ANSWER-Any surface which provides aerodynamics force when it interacts
with a moving strain of air.
Relative Wind - ANSWER-The airflow which is parallel to and opposite the flight path
of an airplane.
Angle of Attack - ANSWER-The angle between the chord line of the airfoil and the
direction of the relative wind.
Camber - ANSWER-The characteristic curve of the airfoil's upper and lower
surfaces.
, Chord Line - ANSWER-An imaginary straight line drawn through the airfoil from the
leading edge to the trailing edge.
Angle of Incidence - ANSWER-The angle between the chord line of the wing and the
longitudinal axis of the airplane.
Coefficient of Lift - ANSWER-A way to measure lift as it relate to angle of attack.
Stall - ANSWER-Separation of airflow from the wing's upper surface; results in rapid
decrease in lift produced by the wing; always occurs at the same critical angel of
attack.
Stall Strips - ANSWER-Metal strips attached to the leading edge of each wing near
the fuselage; used to ensure positive control during the stall.
Flaps - ANSWER-Allows the pilot to steepen the angle of descent on an approach
without increasing airspeed.
Configuration - ANSWER-Normally refers to the position of the landing gear and
flaps.
Parasite Drag - ANSWER-Caused by any aircraft surface which deflects or interferes
with the smooth airflow around the airplane.
Induced Drag - ANSWER-Generated by the airflow circulation around the wing as it
creates lift.
Wingtip Vortices - ANSWER-Deflected airstream downward in the vicinity of the
wing, creating an increase in downwash.
Ground Effect - ANSWER-Phenomenon associated with the reduction of induced
drag when flying very close to the ground; Earth's surface alters airflow pattern
around the airplane.
Stability - ANSWER-Characteristic of an airplane in flight that causes it to return to a
condition of equilibrium.
Minimum Safe Altitude (MSA) - ANSWER-Altitude required following an engine
failure without undue hazards to persons or property on the surface; 500' sparsely
populated and uncongested; 1,000' above & 2,000' horizontal congested area.
Controlled Airport - ANSWER-Airport with an operating control tower.
Traffic Patterns - ANSWER-Established to ensure that air traffic flows into and out of
an airport in an orderly manner.
Wind Sock - ANSWER-Wind direction indicator; most common.
VOCABULARY (C#1-4) EXAM
QUESTIONS AND ANSWERS
Airport Advisory Area - ANSWER-Extends 10 statute miles from airports with a flight
service station on the field, but no operating control tower.
Air Defense Identification Zone (ADIZ) - ANSWER-Established to facilitate
identification of all aircraft entering domestic U.S. airspace from outside the country.
Class A Airspace - ANSWER-Airspace extend from 18,000' MSL up to and including
FL 600; transponder required; IFR flight plane.
Class B Airspace - ANSWER-Established around very large major airports; two-way
radio communication; transponder with mode C.
Class C Airspace - ANSWER-Established around some busy airports with control
towers; two-way radio communication; transponder mode C.
Class D Airspace - ANSWER-Airspace at an airport with a part-time control tower;
two-way radio communication.
Lift - ANSWER-Upward force created by the effect of airflow as it passes over and
under the wing.
Weight - ANSWER-Opposes lift, is caused by the downward pull of gravity.
Thrust - ANSWER-Forward force which propels the airplane through the air.
Drag - ANSWER-Opposes thrust; retarding force which limits the speed of an
airplane.
Bernoulli's Principle - ANSWER-As the velocity of a fluid (air) increases, it's internal
pressure decreases.
Airfoil - ANSWER-Any surface which provides aerodynamics force when it interacts
with a moving strain of air.
Relative Wind - ANSWER-The airflow which is parallel to and opposite the flight path
of an airplane.
Angle of Attack - ANSWER-The angle between the chord line of the airfoil and the
direction of the relative wind.
Camber - ANSWER-The characteristic curve of the airfoil's upper and lower
surfaces.
, Chord Line - ANSWER-An imaginary straight line drawn through the airfoil from the
leading edge to the trailing edge.
Angle of Incidence - ANSWER-The angle between the chord line of the wing and the
longitudinal axis of the airplane.
Coefficient of Lift - ANSWER-A way to measure lift as it relate to angle of attack.
Stall - ANSWER-Separation of airflow from the wing's upper surface; results in rapid
decrease in lift produced by the wing; always occurs at the same critical angel of
attack.
Stall Strips - ANSWER-Metal strips attached to the leading edge of each wing near
the fuselage; used to ensure positive control during the stall.
Flaps - ANSWER-Allows the pilot to steepen the angle of descent on an approach
without increasing airspeed.
Configuration - ANSWER-Normally refers to the position of the landing gear and
flaps.
Parasite Drag - ANSWER-Caused by any aircraft surface which deflects or interferes
with the smooth airflow around the airplane.
Induced Drag - ANSWER-Generated by the airflow circulation around the wing as it
creates lift.
Wingtip Vortices - ANSWER-Deflected airstream downward in the vicinity of the
wing, creating an increase in downwash.
Ground Effect - ANSWER-Phenomenon associated with the reduction of induced
drag when flying very close to the ground; Earth's surface alters airflow pattern
around the airplane.
Stability - ANSWER-Characteristic of an airplane in flight that causes it to return to a
condition of equilibrium.
Minimum Safe Altitude (MSA) - ANSWER-Altitude required following an engine
failure without undue hazards to persons or property on the surface; 500' sparsely
populated and uncongested; 1,000' above & 2,000' horizontal congested area.
Controlled Airport - ANSWER-Airport with an operating control tower.
Traffic Patterns - ANSWER-Established to ensure that air traffic flows into and out of
an airport in an orderly manner.
Wind Sock - ANSWER-Wind direction indicator; most common.
