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. Aircraft speeds between Mach 1 and 5.






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






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






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






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






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






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






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






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






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






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






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






13. 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.






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






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






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






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






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






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






20. Aircraft speeds under Mach 1.






21. Robotic aircraft - used extensively by the military.






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






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






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






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






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






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






28. Aircraft speeds between Mach 10 and 25.






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






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






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






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






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






34. 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.






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






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






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






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






39. Aircraft speeds between Mach 5 and 10.






40. The ratio of inertial forces to viscous forces.






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






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






43. A glider designed for sustained flight.






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






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






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






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






48. 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.






49. To set or thrust in motion.






50. 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.