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Aerospace Engineering

Subject : engineering
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
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This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The force that created by the effect of airflow as it passes over and under the wing.

2. Acts in the opposite direction of flight - opposes the forward- acting force of thrust - and limits the forward speed of the aircraft.

3. A rear vertical stabilizer that controls side- to- side or yawing motion of the aircraft nose.

4. The last point on an airfoil that interacts with the airflow around the wing.

5. A power- driven aircraft kept buoyant by a body of gas (usually helium) which is lighter than air.

6. The part of the airfoil that meets the airflow first.

7. A reduction in the chord of a wing as measured from the root to the tip of the wing.

8. Aircraft speeds between Mach 5 and 10.

9. The art and science of designing - building - and operating manned or unmanned space objects

10. The outline shape of a wing when viewed from above.

11. Caused by the separation of airflow from the wing's upper surface resulting in a rapid decrease in lift.

12. A powered - aerial vehicle that does not carry a human operator - uses aerodynamic forces to provide vehicle lift - can fly autonomously or be piloted remotely - can be expendable or recoverable - and can carry a lethal or nonlethal payload.

13. The horizontal line that passes through the center of gravity of the aircraft - perpendicular to its flight path.

14. Mach. A decimal number representing the true airspeed relationship to the local speed of sound.

15. A structure that creates up and down forces at the tail to keep the fuselage aligned in pitch with the relative wind. The structure itself is horizontal while the forces it creates are vertical.

16. A vehicle - missile - or aircraft which obtains thrust by the reaction to the ejection of fast moving exhaust from within a rocket engine.

17. A type of aircraft deriving both lift and propulsion from one or two sets of horizontally revolving rotors.

18. Aircraft speeds between Mach 1 and 5.

19. The common reference point for the three axes of the aircraft.

20. The rate at which temperature decreases with an increase in altitude.

21. A thin layer of air next to the surface of an airfoil which shows a reduction in speed due to the air's viscosity.

22. Aircraft speeds between Mach 10 and 25.

23. The ratio of inertial forces to viscous forces.

24. Aircraft stability is the characteristic of an airplane in flight that causes it to return to a condition of equilibrium - or steady flight - after it is disturbed.

25. Control surfaces attached to the trailing edge of the wing extending outward from the fuselage to the midpoint of each wing. Flaps can increase the lifting efficiency of the wing and decrease stall speed.

26. The angle formed by the wing chord line and the relative wind.

27. Design machines that fly.

28. The mounting of wings so that the wingtips and higher than the wingroot.

29. The distance from wing tip to wing tip of a wing planform.

30. Hinged main surface part that help control banking for a turn

31. The tail assembly of an aircraft - including the horizontal and vertical stabilizers - elevators and rudder.

32. A powered heavier- than - air aircraft with fixed wings from which the aircraft derives most of its lift.

33. Characteristic of the aircraft that permits you to maneuver it easily and allows it to withstand the stress resulting from the maneuver.

34. A short - easily- remembered slogan - verse - or tune.

35. The relationship between the length and width of a wing.

36. The study of forces and the resulting motion of objects through the air.

37. Any surface - such as a wing - which provides aerodynamic force when it interacts with a moving stream of air.

38. The flat surfaces located behind the center of gravity tend to weathervane with the wind.

39. Robotic aircraft - used extensively by the military.

40. Aircraft speeds under Mach 1.

41. A straight line through the center of gravity of the aircraft and at 90

42. Branch of technology and industry concerned with aviation and space flight.

43. A sequence of drawings representing the shots planned for a film or television production.

44. A rocket- launched spacecraft able to land like an unpowered aircraft - used for journeys between earth and craft orbiting the earth.

45. Motion around the lateral axis caused by deflection in the elevator controlled by moving the yoke forward and aft.

46. Consists of both the engine and propeller in a small airplane.

47. A straight line parallel to the length of the fuselage but that runs through the aircraft's center of gravity.

48. A force caused by the gravitational attraction of the Earth.

49. Forward- acting force which opposes drag and propels the aircraft through the air.

50. The movement about the vertical axis produced by the rudder and controlled by pedals.