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






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






3. Design machines that fly.






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






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






6. The ratio of inertial forces to viscous forces.






7. Aircraft speeds between Mach 5 and 10.






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






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






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






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






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






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






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






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






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






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






19. 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.






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






21. Aircraft speeds under Mach 1.






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






23. 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.






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






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






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






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






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






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






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






31. A glider designed for sustained flight.






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






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






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






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






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






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






38. 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.






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






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






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






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






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






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






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






46. Aircraft speeds between Mach 1 and 5.






47. 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.






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






49. To set or thrust in motion.






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