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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. A built in twist in the wing so that the trailing edge at the wingtip is raised (Wash out) or lowered (Wash in). This significantly affects the slow flight and stall characteristics of the wing.

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

3. Aircraft speeds between Mach 10 and 25.

4. Rolling motion about the longitudinal axis caused by ailerons deflecting in opposite directions and controlled by twisting the yoke.

5. 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.

6. Aircraft speeds under Mach 1.

7. Forces and moments on the body caused by a disturbance tend initially to return the body toward its equilibrium position.

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

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

10. To set or thrust in motion.

11. An advertising film which promotes a product in an informative and supposedly objective style.

12. The force that created by the effect of airflow as it passes over and under the wing.

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

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

15. Houses the cabin - the cockpit and is a common attachment point for the other major components.

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

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

18. 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.

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

20. Design machines that fly.

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

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

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

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

25. An aircraft with floats or skis instead of wheels - designed to land on and take off from water.

26. Aircraft speeds between Mach 5 and 10.

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

28. Out of its own accord - an aircraft eventually returns to and remains at its equilibrium position over a period of time.

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

30. 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.

31. A glider designed for sustained flight.

32. A rear horizontal stabilizer that controls up and down or pitching motion of the aircraft nose.

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

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

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

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

37. The study or practice of travel through the air.

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

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

40. A short - memorable phrase used in advertising or associated with a political party or group.

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

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

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

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

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

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

47. The written text of a play - film - or broadcast.

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

49. 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.

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