MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Flow separation causes lift to decrease with increasing angle of attack. This is inconsistent with the thin airfoil theory where the lift curve slope is 2π. This is a contradiction. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following is not related to flow separation? |
| A. | Reduction of lift |
| B. | Increased drag |
| C. | Adverse pressure gradients |
| D. | Attached flow |
| Answer» E. | |
| 3. |
A state with flow separation and reducing lift at a high angle of attack is___ |
| A. | Climbing |
| B. | Take off |
| C. | Landing |
| D. | Stall |
| Answer» E. | |
| 4. |
The pressure drag in a fully attached flow over an airfoil is zero. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following is responsible for causing form drag? |
| A. | i |
| B. | iv |
| C. | ii |
| D. | iii |
| Answer» C. ii | |
| 6. |
The component of viscosity that creates skin- friction drag is_____ |
| A. | i |
| B. | iii |
| C. | ii |
| D. | iv |
| Answer» C. ii | |
| 7. |
Select the unmatched pair. |
| A. | Pressure distribution: lift |
| B. | Shear stress: skin-friction drag |
| C. | Flow separation: form drag |
| D. | Air pressure: pressure drag |
| Answer» E. | |
| 8. |
What is responsible for creating the aerodynamic drag on the airfoil? |
| A. | Pressure distribution |
| B. | Friction |
| C. | Thrust |
| D. | Gravity |
| Answer» C. Thrust | |
| 9. |
The lift can be calculated accurately using the pressure distribution assuming an inviscid flow. |
| A. | False |
| B. | True |
| Answer» C. | |
| 10. |
The d’Alembert’s Paradox is concerned with ____ |
| A. | Lift arising due to pressure distribution |
| B. | High viscous effects |
| C. | Drag being zero for non-zero lift |
| D. | Kutta condition not satisfied |
| Answer» D. Kutta condition not satisfied | |