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

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

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

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

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

6. Aircraft speeds between Mach 5 and 10.

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

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

9. Design machines that fly.

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

11. 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.

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

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

14. Aircraft speeds between Mach 1 and 5.

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

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

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

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

19. The space in the fuselage of a small airplane containing seats for the pilot - copilot - and sometimes passengers.

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

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

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

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

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

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

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

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

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

29. 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.

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

31. The ratio of inertial forces to viscous forces.

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

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

34. Aircraft speeds between Mach 10 and 25.

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

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

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

38. The capability of an aircraft to respond to your flight inputs - especially with regard to attitude and flight path.

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

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

41. 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.

42. To set or thrust in motion.

43. Generates the lifting force that helps the airplane fly when air flows around it.

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

45. 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.

46. Robotic aircraft - used extensively by the military.

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

48. 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.

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

50. An aircraft that is designed to fly without an engine.