M8 Basic Aerodynamics Sub-Module No 3 (Quiz No :1)

 

8.3 Theory of Flight

Quiz

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1. The aircraft is in a state of equilibrium if ?
   1.   lift=drag
   2.   weight=thrust
   3.   lift=weight
2. If the aircraft were in a bank it would be apparent that lift acts in the direction of the ?
   1.   turn
   2.   bank
   3.   weight
3. The critical AOA varies from 16° to 20° depending on the aircraft’s ?
   1.   Speed
   2.   Angle of Incidence
   3.   Design
4. Critical AOA varies from_______depending on the aircraft’s design ?
   1.   16° to 20°
   2.   12° to 16°
   3.   2° to 4°
5. These are small airfoil sections usually attached to the upper surface of a wing ?
   1.   Fowler flaps
   2.   Vortex generators
   3.   The slot
6. As the airspeed decreases, to retain the lift required for maintaining altitude ?
   1.   the AOA must remain same
   2.   the AOA must be decreased
   3.   the AOA must be increased
7. The center of gravity (CG) may be considered as a point at which all the … of the aircraft is concentrated ?
   1.   mass
   2.   weight
   3.   load
8. It is a very prominent force acting on the gliding distance of the airplane in relationship to its movement over the ground ?
   1.   weight
   2.   wind
   3.   drag
9. When descending at a speed above best glide speed, parasite drag is ?
   1.   same
   2.   decreases
   3.   increases
10. Parasite drag is the sum of pressure and friction drag and as defined, is ?
    1.   independent of lift
    2.   dependent of lift
    3.   negative lift