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






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






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






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






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






6. Aircraft speeds under Mach 1.






7. 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.






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






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






10. Robotic aircraft - used extensively by the military.






11. Aircraft speeds between Mach 5 and 10.






12. The ratio of inertial forces to viscous forces.






13. Design machines that fly.






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






15. A glider designed for sustained flight.






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






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






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






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






21. To set or thrust in motion.






22. 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.






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






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






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






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






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






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






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






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






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






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






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






34. Aircraft speeds between Mach 10 and 25.






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






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






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






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






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






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






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






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






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






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






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






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






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






49. Aircraft speeds between Mach 1 and 5.






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