Aircraft Design Classification Quiz
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Questions and Answers

What are two requirements placed upon load bearing members?

  • Specific Strength and Maximum Length
  • Specific Strength and Minimum Mass (correct)
  • Specific Strength and Minimum Size
  • Maximum Specific Strength and Minimum Mass
  • Which components make up the longitudinal framework of load bearing members?

  • Ribs and Bulkheads
  • Stringers and Ribs
  • Spars, False Spars, and Stringers (correct)
  • Spars and False Spars
  • What type of forces do ribs primarily take in an aircraft structure?

  • Intrinsic pressure forces
  • Aerodynamical loads (correct)
  • Shear forces
  • Tensile forces
  • In what sections do ribs take the forces of intrinsic pressure?

    <p>In tank sections</p> Signup and view all the answers

    What is the purpose of a 'spar' in an aircraft structure?

    <p>To take bending moment, lateral force, and torque</p> Signup and view all the answers

    What are the two types of rib designs mentioned in the text?

    <p>Normal and Reinforced ribs</p> Signup and view all the answers

    What is the primary factor used to classify aircraft based on purpose?

    <p>Range</p> Signup and view all the answers

    Which of the following airfoil section shapes is described as having high lift ability and being applied to low-speed aircraft?

    <p>Convex-concave</p> Signup and view all the answers

    What is the typical range of values for the coefficient of drag (c) for supersonic aircraft?

    <p>c = 3...9%</p> Signup and view all the answers

    Which airfoil section shape is described as having the lowest drag at high subsonic speeds?

    <p>Symmetrical</p> Signup and view all the answers

    What is the purpose of lenticular airfoils, according to the text?

    <p>They have acute edges</p> Signup and view all the answers

    Which airfoil section shape is described as theoretically the most useful for supersonic (hypersonic) speeds?

    <p>Double wedge</p> Signup and view all the answers

    What is the primary function of high-lift devices on the wings of an aircraft?

    <p>To increase the aircraft's lift during takeoff and landing</p> Signup and view all the answers

    Which of the following is NOT a type of high-lift device on the trailing edge of the wing?

    <p>Krueger flap</p> Signup and view all the answers

    What is the primary purpose of using an adaptive wing on an aircraft?

    <p>All of the above</p> Signup and view all the answers

    Which of the following is a device used to increase the aircraft's drag during landing or deceleration?

    <p>Spoilers</p> Signup and view all the answers

    Which of the following is a high-lift device used on the leading edge of the wing?

    <p>Krueger flap</p> Signup and view all the answers

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