Aerodynamics - Week 1 - Fixed Wing Theory of Flight
Understanding Fixed Wing Aerodynamics Quiz
Test your knowledge on the principles of fixed wing aerodynamics and the theory of flight with this comprehensive quiz. Designed for aviation enthusiasts and students, it covers essential concepts in a clear and engaging format.
- 59 challenging questions
- Multiple choice format
- Improve your understanding of flight mechanics
If Lift is greater than Weight, what will the airplane do?
Decent
Climb
Accelerate
Decelerate
What happens to the speed of the air flowing on the top of the standard wing?
Speeds up
Slows down
Creates higher pressure
Creates static pressure
How many forces act on an aircraft in flight?
1
2
3
4
What is meant by the term Aircraft Axis and what are they?
Imaginary lines through the aircraft that the aircraft will move around: Vertical, Lateral and Longitudinal
Imaginary lines through the aircraft identifying dimensions of the aircraft: Fuselage, Wing & Water Lines
Imaginary lines through the aircraft that the aircraft will move around: Roll, Lateral and Horizontal
Imaginary lines through the aircraft that the aircraft will move around: Vertical, Lateral and Pitch
What are two types of drag encountered by an aircraft?
Take-off & Landing
Parasite & Induced
Lift & Induced
Parasite & Profile
Which force in flight opposes Drag on a fixed wing aircraft?
Lift
Weight
Thrust
Induced
What factors can lead to a stall of the airfoil?
High angle of attack
Low angle of attack
High air speed
Excessive rain
What happens to the airflow over the top of the wing if the angle between the chord line and relative wind becomes too high or great?
Boundary Layer air will contact the surface
Air will slow down
Air will speed up
Boundary Layer air will separate from the surface
What is the angle between the Chord line and the relative wind approaching an airfoil called?
Angle of Incidence
Angle of Attack
Approach Angle
Pitch Angle
What is the name of angle between the Chord line of the wing and a line parallel to the longitudinal axis of the aircraft called?
Angle of Incidence
Angle of Attack
Pitch Angle
Approach Angle
What can happens when one wing is more stalled than the other wing?
Nothing, both wings will always stall at the same rate
The aircraft will nose up
The aircraft can go into a spin
The aircraft will tai down
What is the definition of the term "the chord" of an airfoil?
The thickness of the wing
The angle of the wing
The bottom surface has more of a curvature than the top
An imaginary straight line from the leading edge to the trailing edge of the wing
Which force in flight opposes Lift on a fixed wing aircraft?
Coning
Weight
Thrust
Induced
How is Yaw Stability maintained?
Dihedral
Vertical Stabilizer
Coriolis Effect
Horizontal Stabilizer
How is Pitch Stability maintained?
Coriolis Effect
Dihedral
Vertical Stabilizer
Horizontal Stabilizer
A straight line through the wings of an airplane passing through the center of gravity is called: (wing tip to wing tip)
Lateral axis
Pitch axis
Longitudinal axis
Yaw axis
Which force in flight opposes Drag on a fixed wing aircraft?
Thrust
Lift
Gravity
Weight
What is the definition of the term "the chord" of an airfoil?
The thickness of the airfoil
An imaginary line through the airfoil from the leading edge to the trailing edge of the wing
The vector pointing upward created by the difference between the pressures on the upper and lower surfaces
The curvature of the upper & lower surface
Roll or Lateral Stability can be improved by designing a wing with what feature?
Wing tips
Flaperons
Wing root fairings
Wing dihedral
How is lateral stability designed into a low wing aircraft?
Equilibrium
Dihedral
Coriolis Effect
Winglets
If Weight is greater than Lift, what will the airplane do?
Descend
Accelerate
Decelerate
Climb
What is the name of the area along the leading edge of the wing where there is no air flow due to the separation of the air flow over the upper & lower surfaces?
Stall angle
Stall point
Separation Point
Stagnation point
What is the name of the movement around (or about) the vertical axis of the aircraft called?
Pitch
Yaw
Roll
Hover
What is the name of the movement around (or about) the longitudinal axis of the aircraft called?
Yaw
Hover
Pitch
Roll
When the pilot pulls the control wheel (stick) aft (backwards) what direction does the plane go, what is the flight control and its action?
Elevator – Trailing Edge Down
Rudder – Trailing Edge Right
Rudder – Trailing Edge Left
Elevator – Trailing Edge Up
When the pilot moves the control wheel turns or control stick moves left what direction does the plane do?
Pitch Up
Pitch Down
Roll Left
Roll Right
What small movable portions of the trailing edge of the control surface controlled from the cockpit is used to relieve pilot control input force required to maintain an aircraft attitude?
Slats
Trim Tab
Balance Tab
Slots
What is the purpose of the slot on a wing?
Compensate for Adverse Yaw
Decrease Lift
Slow the Aircraft
Increase Lift during Take-off
Which is NOT a method used to counteract the Adverse Yaw caused by the increased lift on the ascending (rising or climbing) wing in a roll?
Differential Ailerons
Frise Ailerons
Roll Spoilers
Aileron Trim
The motion of Banking or Rolling, is an action that is controlled by which flight control surface(s)?
Rudder
Ailerons
Elevators
Flaps
What is NOT one of the many purposes of the spoiler on a wing?
Decrease Lift
Increase Lift during Take-off
Slow the Aircraft
Compensate for Adverse Yaw
To relieve the Pilot input force required to maintain an aircraft in a "Nose Up" attitude what position is the trailing edge of the Trim Tab on the applicable flight control?
Trailing Edge – Up
Trailing Edge – Down
Leading Edge – Left
Leading Edge – Up
Which type of Trailing Edge Flap generates increases lift and drag by extending both back and down?
Plain Flap
Split flap
Fowler Flap
Slotted Flap
The motion of Yaw, is an action which is controlled by which flight control surface(s)?
Ailerons
Flaps
Rudder
Elevator
The motion of Pitch, is an action which is controlled by which flight control surface(s)?
Ailerons
Flaps
Rudder
Elevator
The motion of Bank or Roll, is an action which is controlled by which flight control surface(s)?
Ailerons
Flaps
Rudder
Elevator
What type of flap is this?
Fowler Flap
Spit Flap
Slotted Flap
Plain Flap
What type of flap is this?
Fowler Flap
Spit Flap
Slotted Flap
Plain Flap
What type of flap is this?
Fowler Flap
Spit Flap
Slotted Flap
Plain Flap
What type of flap is this?
Fowler Flap
Spit Flap
Slotted Flap
Plain Flap
What type of flap is this?
Fowler Flap
Multiple Spit Flap
Multiple Slotted Flap
Multiple Plain Flap
What are the two different types of movable leading edge lift augmenting devices?
Slats and Slots
Slots & Kruger Flaps
Plain & Kruger Flaps
Slats & Kruger Flaps
What is the name of this trailing edge tab that is used to move the entire flight control surface?
Trim Tab
Servo Tab
Anti Servo Tab
Trimable Horizontal Stabilizer
What is the name of this trailing edge device that is used to counteract the nose up or nose down tendency of the Stabilator Assembly?
Trim Tab
Servo Tab
Anti Servo Tab
Trimable Horizontal Stabilizer
What is the name of this device?
Trim Tab
Servo Tab
Anti Servo Tab
Trimable Horizontal Stabilizer
What is the name of this device identified on the trailing edge of this rudder?
Trim Tab
Servo Tab
Anti Servo Tab
Ground Adjustable Trim Tab
What is the name and purpose of this Auxiliary Device circled in the picture below?
Winglet
Wing Fence
Saw Tooth Leading Edge
Wing Root Fairing
What is the name and purpose of this Auxiliary Device circled in the picture below?
Winglet
Wing Fence
Saw Tooth Leading Edge
Saw Tooth Leading Edge
What is the name and purpose of this Auxiliary Device circled in the picture below?
Vortex Generator
Stall Vane
Stall Strip
Angle of Attack Probe
What is the name and purpose of this Auxiliary Device identified with the arrows in the picture below?
Vortex Generator
Stall Vane
Stall Strip
Angle of Attack Probe
What is the name and purpose of the device circled in the picture below?
Vortex Generator
Stall Vane
Stall Strip
Angle of Attack Probe
What is the name and purpose of this type of Auxiliary Device in the picture below?
Vortex Generator Probe
Stall Vane Probe
Stall Strip
Angle of Attack Probe
What is the name of the blue shaded area identified with the center arrow?
Stall Vane
Trailing Edge
Stagnation Point
Leading Edge
What is the name of the combined flight control surface on the V-tail of the the aircraft in this picture?
Spoilerons
Rudderons
Ruddervators
Flaperons
When referencing the three elements of any flight control system, which of the following is considered to be a control input device?
The trim tab on the elevator
The rudder pedals
The bell-crank in the wing
The aileron carry-through or balance cable
When referencing the three elements of any flight control system, which of the following is considered to be a transmitting system/device?
The aileron carry-through or balance cable
The rudder pedals
The trim tab on the elevator
The aileron on the tail
When referencing the three elements of any flight control system, which of the following is considered to be a control surface?
The aileron carry-through or balance cable
The elevator bellcrank
The aileron on the wing
The rudder pedals
On the small aircraft system discussed in class, when you turn the control wheel to the left and right, which of the following components are you moving?
The bell-cranks in each wing in front of the roll devices.
The bell-crank attached to the aft side of the horizontal stabilizer.
The bell-cranks in each wing in front of the pitch devices
The control surface attached to the backside of the vertical stabilizer
On the small aircraft system discussed in class, when you push the rudder pedals to the left and right, which of the following components are you moving?
The bell-cranks in each wing in front of the roll devices.
The control surface attached to the backside of the vertical stabilizer
The bell-cranks in each wing in front of the pitch devices
The bell-crank attached to the aft side of the horizontal stabilizer
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