What does the term Angle of Attack (AOA) refer to in aerodynamics?, The width of the wing from the leading edge apex to the trailing edge., The angle between the oncoming air or relative wind and a reference line on the airplane or wing., The pressure difference between the upper and lower surfaces of an airfoil., According to Boyle's Law, if the temperature is constant, what happens to the volume of a gas when pressure increases?, Volume increases, Volume decreases, Volume remains the same, What does humidity refer to in atmospheric conditions?, The density of air at different altitudes, The speed at which air particles move, The amount of water vapor present in the air, Which of the following statements about temperature, pressure, humidity, and density is true?, Temperature increases with altitude while pressure remains constant., Humidity is unaffected by temperature., Pressure decreases with altitude, and air density is affected by both pressure and Temperature., What is the ''Chord Line'' of a wing?, The average distance from the leading edge to the trailing edge of a wing., A line depicting the chord, extending forward of the leading edge., The spanwise distance of a wing from tip to tip., If an aircraft is flying at Mach 2, this indicates that its speed is:, Twice the speed of sound, Half the speed of sound, Equal to the speed of sound, The Mach number is defined as the ratio of which two quantities?, Aircraft's speed to the speed of sound, Aircraft's speed to the speed of light, Aircraft's speed to the speed of wind, Boyle’s law states that:, The volume of a given amount of gas held at constant T varies inversely with applied P when T and mass M are kept constant, The Volume of a given amount of gas held at constant T varies proportionally with applied P when T and mass M are kept constant, The volume of a given amount of gas held at constant T varies inversely with applied P when T and mass M are variable, Q: Define the Lift/Drag ratio. A: Lift/Drag ratio is the amount of Lift generated by a wing or airfoil compared to its drag, True, False, Q: Write the definition of viscosity. A: Viscosity is a measure of a fluid's resistance to flow., True, False, State three common forms of airfoil contamination. Ice, Snow, Frost, True, False, Q: Why was the International Standard Atmosphere established? A: The International Standard Atmosphere was established to provide a common reference for temperature, pressure and density at varying altitudes., True, False, Q: Describe in a few lines the Benoulli's principle. A1:Bernoulli’s Principle states that as the velocity of a fluid (such as air) increases, its pressure decreases. A2: Bernoulli's principle states that when a fluid (air) flowing through a tube reaches a constriction, or narrowing, of the tube, the speed of the fluid flowing through that constriction increases and its pressure decreases., True, False, Q: Give the definition of absolute performance ceiling. A: The absolute ceiling is the altitude at which a climb is no longer possible, True, False, Name the kind of wings shown below., Delta Wing, Rectangular Wing, Name the kind of wings shown below., Delta Wing, Rectangular Wing, In the picture below write down the 4 forces acting on an aeroplane., Lift, Thrust, WEIGHT ( GRAVITY), DRAG

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