MCQOPTIONS
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MCQOPTIONS
This section includes 52 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Is Kutta condition is applicable to solid bodies with sharp corners? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Purpose of vortex method is ____________ |
| A. | To reduce the dimensionality of aerodynamic model |
| B. | To increase the dimensionality of aerodynamic model |
| C. | To reduce the lift of aerodynamic model |
| D. | To increase the lift of aerodynamic model |
| Answer» B. To increase the dimensionality of aerodynamic model | |
| 3. |
Is viscosity is the smoothing parameter on the real fluid? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
Is point vortices can control the growth of round-off errors? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Is high airspeed around the trailing edge causes strong viscous forces? |
| A. | False |
| B. | True |
| Answer» B. True | |
| 6. |
Is thin sheet of intense vorticity is unstable at downstream? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
How airfoil increases its speed? |
| A. | Flow over the topside |
| B. | Flow over the leading edge |
| C. | Flow over the bottom side |
| D. | Flow over the trailing edge |
| Answer» B. Flow over the leading edge | |
| 8. |
Vortex flow occurs at ___________ |
| A. | Leading edge |
| B. | Trailing edge |
| C. | Chord |
| D. | Chamber line |
| Answer» C. Chord | |
| 9. |
How stagnation point on the topside of the airfoil reaches the trailing edge? |
| A. | Due to viscous forces |
| B. | Due to surface forces |
| C. | Due to pressure forces |
| D. | Due to drag forces |
| Answer» B. Due to surface forces | |
| 10. |
How starting vortex is formed? |
| A. | As the airfoil begins to move vortex are formed |
| B. | As the airflows on the airfoil vortex are formed |
| C. | As the airfoil moves against the relative wind vortex are formed |
| D. | As the airflows on the circular body vortex are formed |
| Answer» B. As the airflows on the airfoil vortex are formed | |
| 11. |
Is axial compressor is a compressor that can continuously pressurize gasses? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
Is airfoil can be characterized by the relation between the angle of attack, lift coefficient and drag coefficient? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 13. |
Turbine blades are used to extract energy from the high temperatures. |
| A. | False |
| B. | True |
| Answer» C. | |
| 14. |
Why NACA 0012 airfoil is said to be symmetric airfoil? |
| A. | Because of no camber |
| B. | Because of camber |
| C. | Because of no thickness |
| D. | Because of chord line |
| Answer» B. Because of camber | |
| 15. |
What is the thickness in NACA 747A315 airfoil? |
| A. | 0.15 |
| B. | 0.25 |
| C. | 0.3 |
| D. | 0.07 |
| Answer» B. 0.25 | |
| 16. |
What parameter is used to decrease the stall speed? |
| A. | Chord |
| B. | Chord line |
| C. | Camber |
| D. | Camber line |
| Answer» D. Camber line | |
| 17. |
Is laminar flow used in the smooth flow of a viscous liquid through a tube? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 18. |
Is lift is produced by the changing direction of the flow? |
| A. | False |
| B. | True |
| Answer» C. | |
| 19. |
Is weak external velocity, rolling up of the vortex filament? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 20. |
Is lift and drag are the total aerodynamic force acting the body? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 21. |
Is strength of a vortex tube vary with time? |
| A. | False |
| B. | True |
| Answer» B. True | |
| 22. |
Is Biot-savart law is used for computing the resultant magnetic field? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 23. |
Is circular filament is of constant thickness? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 24. |
Is vortex filament is a very thin strip? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 25. |
Is thin strips of vorticity are unstable to disturbances and tend to roll up? |
| A. | False |
| B. | True |
| Answer» C. | |
| 26. |
Is vortex filament equation can be modified to include the effects of point vortices? |
| A. | False |
| B. | True |
| Answer» C. | |
| 27. |
Is surface is perturb the boundary layer and promote turbulence? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 28. |
Is down wash is change in direction of lift? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 29. |
Is turbulence flow is irregular? |
| A. | False |
| B. | True |
| Answer» C. | |
| 30. |
Is prandtl lifting line theory predicts lift distribution over a three dimensional wing? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 31. |
Is 2D version of Biot-Savart equation is used, when the sources are invariant in one direction? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 32. |
Is local induced change the angle of attack on a given section of a wing? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 33. |
Is flat bottomed wing is more efficient than fully-symmetrical airfoil? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 34. |
Is symmetric airfoil produce positive lift? |
| A. | False |
| B. | True |
| Answer» C. | |
| 35. |
Is upper camber refers to the camber of the upper surface? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 36. |
Is NASA designed low speed airfoils? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 37. |
Is camber of an airfoil causes an increase in velocity? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 38. |
Is pressure coefficient distributions are calculated for flow over an airfoil? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 39. |
Is initial distribution is given by solid curves? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 40. |
Is a viscous effect play a major role in flows of intersect? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 41. |
How the circulation around the airfoil? |
| A. | Positive |
| B. | Negative |
| C. | Constant |
| D. | Slightly varies |
| Answer» C. Constant | |
| 42. |
Is fluid is initially in irrotational motion? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 43. |
Is prandtl lifting line theory is a mathematical model that predicts lift distribution over a three-dimensional wing? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 44. |
Is loading distribution is represented by the sum of finite number? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 45. |
Is downwash distribution on the platform is regular? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 46. |
Is additional term can be added to make an aircraft wing station? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 47. |
Is loading of lifting surfaces antedates the achievements of powered flights? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 48. |
Is vortex loses strength along the whole wingspan? |
| A. | False |
| B. | True |
| Answer» C. | |
| 49. |
Is subsonic lifting surface theory relates to normal velocity? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 50. |
Is plan forms with smooth edge shapes? |
| A. | True |
| B. | False |
| Answer» B. False | |