Test your basic knowledge |

Aerospace Engineering

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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






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






3. 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.






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






5. Aircraft speeds between Mach 10 and 25.






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






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






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






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






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






11. Aircraft speeds under Mach 1.






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






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






14. Robotic aircraft - used extensively by the military.






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






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






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






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






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






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






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






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






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






24. A large bag filled with hot air or gas to make it rise in the air - with a basket for passengers hanging from it.






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






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






27. 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.






28. 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.






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






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






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






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






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






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






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






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






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






38. Design machines that fly.






39. Aircraft speeds between Mach 1 and 5.






40. 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.






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






42. To set or thrust in motion.






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






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






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






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






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






48. The ratio of inertial forces to viscous forces.






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






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