Commercial Kings School || All Answers Are Correct 100%.
Air flowing over the top of the wing moves...? correct answers Faster
Which part of the airfoil has relatively low pressure? correct answers Top side of airfoil
Which part of the airfoil has relatively high pressure? correct answers Bottom side of airfoil
What creates lift? correct answers High pressure below the wing, with low pressure above the
wing
The pressure differential is what creates lift
What is the Angle of attack? correct answers The angle between chord line and relative wind
The angle of attack directly controls? correct answers Lift, drag and airspeed
When AOA is increased, what factors increase? correct answers Lift and drag are increased
Critical angle of attack? correct answers Highest AOA where air flows smoothly over the wing
Laminar flow? correct answers a smooth airflow over the airfoil
A loss of laminar flow over the wing results in...? correct answers A stall
The AOA of wing directly controls the...? correct answers Distribution of pressures acting on a
wing
In unaccelerated flight, there is a corresponding indicated airspeed for every...? correct answers
AOA to generate lift
At higher altitudes, the airplane must be flown at a higher...? correct answers TAS for any given
AOA
Reaching the critical AOA means the wing will...? correct answers Continue to have smooth
airflow
Critical AOA is the same regardless of...? correct answers Weight
Dynamic pressure
Bank angle
Pitch attitude
Indicated stalling speeds are affected by...? correct answers Weight
Load factor (G's)
Power
The Critical angle of attack never...? correct answers Changes
,The airplane will always stall at the same Critical AOA, but changes in weight, load factor and
power will result in the aircraft reaching the CAOA at a...? correct answers Lower indicated
airspeed
Will turbulence change your stall speed? correct answers Yes, it changes load factor
Frost on the wing will cause the airplane to stall at an AOA...? correct answers Lower than
normal
Wing planforms? correct answers The shape and layout of the wing
Rectangular wing planforms tend to stall...? correct answers Near the root, with the stall
progressing to wingtips
The need to slow aircraft below Va is brought by which weather phenomenon? correct answers
Turbulence, with an increase in stall speed
The stalling speed of an airplane is most affected by...? correct answers Variations in airplane
loading
Primary flight controls? correct answers Ailerons, Rudder, Elevator
Secondary flight controls? correct answers Flaps
Trim
What is the main purpose of flaps? correct answers Provide same lift at slower airspeed
What affect do flaps of have aerodynamic ability? correct answers Increased drag
Increased lift
What is the purpose of trim? correct answers To relieve control pressures
Trim tab? correct answers Maintains same position relative to elevator
Servo tab? correct answers Moves in opposite direction of movement
assists in moving primary control surfaces
Anti servo tab? correct answers Tab moves in same direction as control surface
Prevents control surface from moving full deflection
What is the purpose of spoilers? correct answers Increase Drag to slow down
Four forces working on an aircraft? correct answers Thrust
Drag
Lift
,Weight
Thrust? correct answers The force applied to propel an object in a certain direction
Drag? correct answers Force that acts parallel to both relative wind and flight path of aircraft
Lift? correct answers Force perpendicular to relative wind
Weight? correct answers Acts towards the center of the Earth
In steady flight, the forces are are...? correct answers Equal to each other
Induced drag is a...? correct answers By product of lift
Greatly affected by changes in airspeed
Induced drag decreases as...? correct answers Speed increases
Parasite drag increases as...? correct answers Speed increases
L/D? correct answers Lift-to-drag ratio
If the airspeed of a plane is doubled in level flight, parasite drag will become...? correct answers
Four times greater
If AOA remains constant, but airspeed is doubled, the lift produced at higher speed will be...?
correct answers Four times greater than at lower speed
What does L/D tell us? correct answers The gliding ration
If you have an L/D of 11:1, what does that tell us? correct answers Airplane will go forward 11
feet for each foot it descends
Slipstream effect? correct answers Prop is moving and creating a slipstream around your airplane
Slipstream from prop makes airplane want to yaw left, how is this counteracted? correct answers
Right rudder
Which way does prop sping? correct answers Clockwise
Static stability? correct answers How an aircraft responds to disturbance initially
Dynamic stability? correct answers how an airplane responds over time to a disturbance
Why are airplanes built with the tail wanting to go down? correct answers Helps with pitch
stability
, The farther forward the CG, the what type of force needs to be applied on the tail? correct
answers More downward force
The farther aft the CG, the what type of forced needs to be applied on the tail? correct answers
Less downward force
Longitudinal stability? correct answers Stability about the airplane's lateral axis; pitching
tendency.
Controlled by elevator
Three kinds of stability? correct answers Positive
Negative
Neutral
Positive static stability? correct answers Nose attitude initially returns to original position after
disturbance
Negative static stability? correct answers Nose attitude continues away from original position
after disturbance
Neutral Static Stability? correct answers Nose attitude does not return to original position
following a disturbance
Positive dynamic stability correct answers Letting go of controls, aircraft begins oscillation, after
a period of time the oscillations become smaller
Neutral Dynamic Stability correct answers Letting go of controls, aircraft begins oscillation, after
a period of time the oscillations stay the same
Negative dynamic stability? correct answers Letting go of controls, aircraft begins oscillation,
after a period of time the oscillations become greater
What determines the stability of an aircraft? correct answers The relation of the CG to the CL
When is a stall the most difficult to recover from? correct answers CG to far aft
Rotation in a spin takes place around the...? correct answers CG
If an aircraft is loaded to far AFT, it will tend to be unstable around its...axis? correct answers
Lateral axis
In a turn, what types of lift components do we have? correct answers Vertical lift component
Horizontal Lift component
During a turn, what are the downward effects on the aircraft? correct answers Weight component
Centrifugal Force
Air flowing over the top of the wing moves...? correct answers Faster
Which part of the airfoil has relatively low pressure? correct answers Top side of airfoil
Which part of the airfoil has relatively high pressure? correct answers Bottom side of airfoil
What creates lift? correct answers High pressure below the wing, with low pressure above the
wing
The pressure differential is what creates lift
What is the Angle of attack? correct answers The angle between chord line and relative wind
The angle of attack directly controls? correct answers Lift, drag and airspeed
When AOA is increased, what factors increase? correct answers Lift and drag are increased
Critical angle of attack? correct answers Highest AOA where air flows smoothly over the wing
Laminar flow? correct answers a smooth airflow over the airfoil
A loss of laminar flow over the wing results in...? correct answers A stall
The AOA of wing directly controls the...? correct answers Distribution of pressures acting on a
wing
In unaccelerated flight, there is a corresponding indicated airspeed for every...? correct answers
AOA to generate lift
At higher altitudes, the airplane must be flown at a higher...? correct answers TAS for any given
AOA
Reaching the critical AOA means the wing will...? correct answers Continue to have smooth
airflow
Critical AOA is the same regardless of...? correct answers Weight
Dynamic pressure
Bank angle
Pitch attitude
Indicated stalling speeds are affected by...? correct answers Weight
Load factor (G's)
Power
The Critical angle of attack never...? correct answers Changes
,The airplane will always stall at the same Critical AOA, but changes in weight, load factor and
power will result in the aircraft reaching the CAOA at a...? correct answers Lower indicated
airspeed
Will turbulence change your stall speed? correct answers Yes, it changes load factor
Frost on the wing will cause the airplane to stall at an AOA...? correct answers Lower than
normal
Wing planforms? correct answers The shape and layout of the wing
Rectangular wing planforms tend to stall...? correct answers Near the root, with the stall
progressing to wingtips
The need to slow aircraft below Va is brought by which weather phenomenon? correct answers
Turbulence, with an increase in stall speed
The stalling speed of an airplane is most affected by...? correct answers Variations in airplane
loading
Primary flight controls? correct answers Ailerons, Rudder, Elevator
Secondary flight controls? correct answers Flaps
Trim
What is the main purpose of flaps? correct answers Provide same lift at slower airspeed
What affect do flaps of have aerodynamic ability? correct answers Increased drag
Increased lift
What is the purpose of trim? correct answers To relieve control pressures
Trim tab? correct answers Maintains same position relative to elevator
Servo tab? correct answers Moves in opposite direction of movement
assists in moving primary control surfaces
Anti servo tab? correct answers Tab moves in same direction as control surface
Prevents control surface from moving full deflection
What is the purpose of spoilers? correct answers Increase Drag to slow down
Four forces working on an aircraft? correct answers Thrust
Drag
Lift
,Weight
Thrust? correct answers The force applied to propel an object in a certain direction
Drag? correct answers Force that acts parallel to both relative wind and flight path of aircraft
Lift? correct answers Force perpendicular to relative wind
Weight? correct answers Acts towards the center of the Earth
In steady flight, the forces are are...? correct answers Equal to each other
Induced drag is a...? correct answers By product of lift
Greatly affected by changes in airspeed
Induced drag decreases as...? correct answers Speed increases
Parasite drag increases as...? correct answers Speed increases
L/D? correct answers Lift-to-drag ratio
If the airspeed of a plane is doubled in level flight, parasite drag will become...? correct answers
Four times greater
If AOA remains constant, but airspeed is doubled, the lift produced at higher speed will be...?
correct answers Four times greater than at lower speed
What does L/D tell us? correct answers The gliding ration
If you have an L/D of 11:1, what does that tell us? correct answers Airplane will go forward 11
feet for each foot it descends
Slipstream effect? correct answers Prop is moving and creating a slipstream around your airplane
Slipstream from prop makes airplane want to yaw left, how is this counteracted? correct answers
Right rudder
Which way does prop sping? correct answers Clockwise
Static stability? correct answers How an aircraft responds to disturbance initially
Dynamic stability? correct answers how an airplane responds over time to a disturbance
Why are airplanes built with the tail wanting to go down? correct answers Helps with pitch
stability
, The farther forward the CG, the what type of force needs to be applied on the tail? correct
answers More downward force
The farther aft the CG, the what type of forced needs to be applied on the tail? correct answers
Less downward force
Longitudinal stability? correct answers Stability about the airplane's lateral axis; pitching
tendency.
Controlled by elevator
Three kinds of stability? correct answers Positive
Negative
Neutral
Positive static stability? correct answers Nose attitude initially returns to original position after
disturbance
Negative static stability? correct answers Nose attitude continues away from original position
after disturbance
Neutral Static Stability? correct answers Nose attitude does not return to original position
following a disturbance
Positive dynamic stability correct answers Letting go of controls, aircraft begins oscillation, after
a period of time the oscillations become smaller
Neutral Dynamic Stability correct answers Letting go of controls, aircraft begins oscillation, after
a period of time the oscillations stay the same
Negative dynamic stability? correct answers Letting go of controls, aircraft begins oscillation,
after a period of time the oscillations become greater
What determines the stability of an aircraft? correct answers The relation of the CG to the CL
When is a stall the most difficult to recover from? correct answers CG to far aft
Rotation in a spin takes place around the...? correct answers CG
If an aircraft is loaded to far AFT, it will tend to be unstable around its...axis? correct answers
Lateral axis
In a turn, what types of lift components do we have? correct answers Vertical lift component
Horizontal Lift component
During a turn, what are the downward effects on the aircraft? correct answers Weight component
Centrifugal Force
