PPL-GROUND SCHOOL EXAM
QUESTIONS WITH COMPLETE
ANSWERS
What force is created by the propeller the accelerate the aircraft forward? -
ANSWER-Thrust
What are the two main types of drag? - ANSWER-induced drag and parasite drag
What are the two main types of parasite drag? - ANSWER-Pressure drag and skin
friction
Which type of drag decreases as airspeed increase? - ANSWER-Induced drag
The boundary layer is mainly responsible for what type of drag? - ANSWER-Skin
friction
What is the chord line of an aerofoil? - ANSWER-A line drawn from the leading to
trailing edge
Dividing the wing span by the average chord determines the ______? - ANSWER-
Aspect ratio of the wing
What are some benefits of a high aspect wing? - ANSWER-Less induced drag,
better fuel efficiency
Which wing planform would provide good low speed handing at the cost of slightly
higher induced drag? - ANSWER-Rectangular wing
An aerofoil best suited for low-speed flight will generally have_______? - ANSWER-
A thicker camber with a high aspect ratio
Laminar flow over the wing is designed to better control the______? - ANSWER-
Boundary layer
What are the three stages of the boundary layer? - ANSWER-Laminar Flow,
Transition point, turbulent flow
What is the biggest downside to a laminar wing? - ANSWER-The laminar wing are
very critical to any surface contaminants
An aircraft with an upward angle of the wings is called_____? - ANSWER-Dihedral
Washout, stall strips, and vortex generators are all designed to improve______? -
ANSWER-Low speed handling and stall characteristics.
,The design technique used to minimize pressure drag is called______? - ANSWER-
Streamlining
A device that increases lift and drag by changing the chord line of an aerofoil is
called a_______? - ANSWER-Flap
What are some of the benefits of using high flap settings? - ANSWER-Lower stall
and approach speed, better visibility
Past the half deflection point, flaps create more________than________? -
ANSWER-Drag, lift
If using flaps for takeoff, which setting should be used? - ANSWER-Takeoff, or
partial flaps
What are the 3 axes of an aircraft? - ANSWER-Lateral. Longitudinal, Vertical(normal)
What point do all the aircraft axes pass through? - ANSWER-Center of gravity
what is the movement about the lateral axis called? - ANSWER-Pitch
What control surfaces create movement about the longitudinal axis? - ANSWER-
Ailerons, roll spoilers
Which control surface creates movement about the lateral axis? - ANSWER-
Elevators, Stabilators
When an aircraft experiences a roll movement it will also__________? - ANSWER-
Yaw
What is the main purpose of the drain hole in a pitot system? - ANSWER-To allow
melted water to escape from the pitot system
What are instrument errors for the altimeter? - ANSWER-Position error, temperature,
mountain effect, static blockages, pressure
Which term best describes your actual height above ground? - ANSWER-Absolute
altitude
If you move the subscale down on the altimeter what will happen on the instrument
face - ANSWER-The indicated altitude will decrease
What best describes the Vso? - ANSWER-It is the marking on the ASI found at the
bottom of the white arc and tells the pilots stall speed in the landing configuration
If the pilot of an aircraft suspects that they have a pitot blockage(full blockage), what
should be true? - ANSWER-When the pitot climbs, the airspeed indicated will be
higher than actual.
, Density error found in the pitot static system focuses on which two factors? -
ANSWER-Pressure + Temperature
What best describes CAS? - ANSWER-Indicated airspeed corrected for position and
instrument error
If a pilot is on a heading of 320 and starts a turn towards the south, what will the
compass do? - ANSWER-Lag
What is the name of the error caused due to magnetic components? - ANSWER-
Deviation
In most airplanes, the three gyroscopic instrument that we will use are? - ANSWER-
Attitude, heading, and turn and bank
Gyroscopic instruments are powered in one of three ways? - ANSWER-Electrical,
vacuum, venturi
How does the ball in the turn coordinator operate? - ANSWER-It senses gravity and
centrifugal force
When conducting an instrument check prior to flight, what is not correct? - ANSWER-
The turn and bank indicator will show a left bank on the miniature airplane and the
ball will go right when a right turn is done.
Why is instrument flying an important skill to have? - ANSWER-all of the above
In order for an aircraft to fly, it must create enough lift to overcome its_______? -
ANSWER-Weight
To simplify calculations, weight is considered to act through the_______? -
ANSWER-Center of gravity
How can the pilot control the center of gravity? - ANSWER-All of the answers listed
What are the two way a wing creates lift? - ANSWER-Pressure differential and
downwash
What is the main factor that determines how much lift a wing creates? - ANSWER-
Angle of attack
When an aircraft experiences yaw, the faster outer wing will cause the aircraft
to__________? - ANSWER-Roll
A mass balance is designed to_________? - ANSWER-Prevent control surface
flutter
A dynamic balance is designed to________? - ANSWER-Assist the pilot in moving
the controls
QUESTIONS WITH COMPLETE
ANSWERS
What force is created by the propeller the accelerate the aircraft forward? -
ANSWER-Thrust
What are the two main types of drag? - ANSWER-induced drag and parasite drag
What are the two main types of parasite drag? - ANSWER-Pressure drag and skin
friction
Which type of drag decreases as airspeed increase? - ANSWER-Induced drag
The boundary layer is mainly responsible for what type of drag? - ANSWER-Skin
friction
What is the chord line of an aerofoil? - ANSWER-A line drawn from the leading to
trailing edge
Dividing the wing span by the average chord determines the ______? - ANSWER-
Aspect ratio of the wing
What are some benefits of a high aspect wing? - ANSWER-Less induced drag,
better fuel efficiency
Which wing planform would provide good low speed handing at the cost of slightly
higher induced drag? - ANSWER-Rectangular wing
An aerofoil best suited for low-speed flight will generally have_______? - ANSWER-
A thicker camber with a high aspect ratio
Laminar flow over the wing is designed to better control the______? - ANSWER-
Boundary layer
What are the three stages of the boundary layer? - ANSWER-Laminar Flow,
Transition point, turbulent flow
What is the biggest downside to a laminar wing? - ANSWER-The laminar wing are
very critical to any surface contaminants
An aircraft with an upward angle of the wings is called_____? - ANSWER-Dihedral
Washout, stall strips, and vortex generators are all designed to improve______? -
ANSWER-Low speed handling and stall characteristics.
,The design technique used to minimize pressure drag is called______? - ANSWER-
Streamlining
A device that increases lift and drag by changing the chord line of an aerofoil is
called a_______? - ANSWER-Flap
What are some of the benefits of using high flap settings? - ANSWER-Lower stall
and approach speed, better visibility
Past the half deflection point, flaps create more________than________? -
ANSWER-Drag, lift
If using flaps for takeoff, which setting should be used? - ANSWER-Takeoff, or
partial flaps
What are the 3 axes of an aircraft? - ANSWER-Lateral. Longitudinal, Vertical(normal)
What point do all the aircraft axes pass through? - ANSWER-Center of gravity
what is the movement about the lateral axis called? - ANSWER-Pitch
What control surfaces create movement about the longitudinal axis? - ANSWER-
Ailerons, roll spoilers
Which control surface creates movement about the lateral axis? - ANSWER-
Elevators, Stabilators
When an aircraft experiences a roll movement it will also__________? - ANSWER-
Yaw
What is the main purpose of the drain hole in a pitot system? - ANSWER-To allow
melted water to escape from the pitot system
What are instrument errors for the altimeter? - ANSWER-Position error, temperature,
mountain effect, static blockages, pressure
Which term best describes your actual height above ground? - ANSWER-Absolute
altitude
If you move the subscale down on the altimeter what will happen on the instrument
face - ANSWER-The indicated altitude will decrease
What best describes the Vso? - ANSWER-It is the marking on the ASI found at the
bottom of the white arc and tells the pilots stall speed in the landing configuration
If the pilot of an aircraft suspects that they have a pitot blockage(full blockage), what
should be true? - ANSWER-When the pitot climbs, the airspeed indicated will be
higher than actual.
, Density error found in the pitot static system focuses on which two factors? -
ANSWER-Pressure + Temperature
What best describes CAS? - ANSWER-Indicated airspeed corrected for position and
instrument error
If a pilot is on a heading of 320 and starts a turn towards the south, what will the
compass do? - ANSWER-Lag
What is the name of the error caused due to magnetic components? - ANSWER-
Deviation
In most airplanes, the three gyroscopic instrument that we will use are? - ANSWER-
Attitude, heading, and turn and bank
Gyroscopic instruments are powered in one of three ways? - ANSWER-Electrical,
vacuum, venturi
How does the ball in the turn coordinator operate? - ANSWER-It senses gravity and
centrifugal force
When conducting an instrument check prior to flight, what is not correct? - ANSWER-
The turn and bank indicator will show a left bank on the miniature airplane and the
ball will go right when a right turn is done.
Why is instrument flying an important skill to have? - ANSWER-all of the above
In order for an aircraft to fly, it must create enough lift to overcome its_______? -
ANSWER-Weight
To simplify calculations, weight is considered to act through the_______? -
ANSWER-Center of gravity
How can the pilot control the center of gravity? - ANSWER-All of the answers listed
What are the two way a wing creates lift? - ANSWER-Pressure differential and
downwash
What is the main factor that determines how much lift a wing creates? - ANSWER-
Angle of attack
When an aircraft experiences yaw, the faster outer wing will cause the aircraft
to__________? - ANSWER-Roll
A mass balance is designed to_________? - ANSWER-Prevent control surface
flutter
A dynamic balance is designed to________? - ANSWER-Assist the pilot in moving
the controls
