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Quiz: Lift and Drag Fundamentals
Test your knowledge of the principles of lift and drag with this short quiz.
Andrew Wood
| 13 June 2023
Quizzes
Airfoil
Drag
Lift
Lift Induced Drag
Image:
Kreuzschnabel
How well do you understand the aerodynamic principles of lift and drag? Take the quiz and find out.
1. Increasing the aspect ratio of a sub-sonic wing will have what effect on the lift-induced drag produced by the wing?
The lift-induced drag will decrease.
The lift-induced drag will increase.
The aspect ratio has no effect on the lift-induced drag produced.
2. Which of the following statements is FALSE
Lift induced drag is greatest at high angles of attack.
Parasite drag increases with the square of the airspeed.
Boundary layers only form in turbulent flow.
Extending trailing edge flaps decreases the aircraft stall speed.
3. A thin layer of frost covering the upper surface of an aeroplane's wing will have the following effect:
Have no effect on the lift or drag.
Increase the lift and the drag produced.
Decrease both the lift and drag produced.
Increase the drag and decrease the lift produced.
4. Increasing the flap extension angle results in:
An increase in camber.
An increase in lift.
An increase in drag.
All of the above.
5. An aircraft's angle of attack is defined as the angle between:
The wing upper surface and the longitudinal axis of the aircraft.
The aerofoil chord line and the relative airflow
The aerofoil chord line and the longitudinal axis of the aircraft.
The wing upper surface and the relative airflow.
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