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






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






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






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






5. The ratio of inertial forces to viscous forces.






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






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






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






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






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






11. Aircraft speeds between Mach 5 and 10.






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






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






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






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






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






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






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






19. Design machines that fly.






20. 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.






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






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






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






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






25. To set or thrust in motion.






26. A glider designed for sustained flight.






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






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






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






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






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






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






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






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






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






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






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






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






39. Aircraft speeds between Mach 1 and 5.






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






41. 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.






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






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






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






45. 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.






46. 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.






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






48. Robotic aircraft - used extensively by the military.






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






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