Aerodynamics 1

  1.   A wing generates lift by:
    1. Creating an area of low pressure above the wing
    2. Deflecting the airflow downward
    3. All of the above
    4. None of the above
  2.   The lift equation states that lift will increase:
    1. Directly as the coefficient of lift increases
    2. As the square of the speed of the airflow over the wing
    3. Directly with an increase in wing planform area
    4. All of the above
  3.   The pilot can control the amount of lift the wing generates. For example, she could increase lift by:
    1. Flying faster
    2. Increasing the coefficient of lift by pulling the stick back and increasing the angle of attack
    3. Increasing the wing area
    4. All of the above
  4.   You are designing a glider. You plan to have:
    1. A short, thick wing to generate more lift
    2. A long, thin wing to generate more induced drag
    3. A high aspect ratio to increase the roll rate
    4. A high aspect ratio which will reduce the energy lost to wing-tip vortices
  5.   Besides controlling the amount of lift the wing generates, the pilot can control the flight path by:
    1. Trading kinetic energy for potential energy and bending the lift vector
    2. Trading kinetic energy for potential energy and aiming the lift vector
    3. Trading total energy for kinetic energy and aiming the lift vector
    4. Trading potential energy for kinetic energy and bending the lift vector
  6.   An aircraft’s drag curve is shaped like a wide _______ and is the sum of the __________ drag and the _________ drag.
    1. n, total, kinetic
    2. u, total, parasite
    3. u, induced, parasite
    4. n, parasite, induced
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