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






2. 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.






3. Aircraft speeds under Mach 1.






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






5. An aircraft with floats or skis instead of wheels - designed to land on and take off from water.






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






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






8. Robotic aircraft - used extensively by the military.






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






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






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






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






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






14. 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.






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






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






17. Design machines that fly.






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






19. The ratio of inertial forces to viscous forces.






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






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






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






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






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






25. A glider designed for sustained flight.






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






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






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






29. 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.






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






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






32. 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.






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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






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