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. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






20. Aircraft speeds between Mach 10 and 25.






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






22. A glider designed for sustained flight.






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






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






25. Aircraft speeds between Mach 5 and 10.






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






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






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






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






30. Design machines that fly.






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






32. The ratio of inertial forces to viscous forces.






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






34. Aircraft speeds between Mach 1 and 5.






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






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






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






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






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






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






41. 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.






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






43. 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.






44. 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.






45. 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.






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






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






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






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






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