MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When does embedded shock wave appear on the cone kept at an angle? |
| A. | Angle of attack = half cone angle |
| B. | Angle of attack > half cone angle |
| C. | Angle of attack < half cone angle |
| D. | Shock wave angle = 90 degrees |
| Answer» C. Angle of attack < half cone angle | |
| 2. |
What happens when the cross flow velocity becomes supersonic? |
| A. | Embedded shock waves on windward side |
| B. | Embedded shock waves on the leeward side |
| C. | Expansion shock waves on the windward side |
| D. | Oblique shock waves on the leeward side |
| Answer» C. Expansion shock waves on the windward side | |
| 3. |
Flow over an elliptical cone at zero angle of attack, the fluid properties are a function of how many elements? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 4. |
Which condition is to be met for occurrence of stagnation point on a conical surface at an angle of attack with free stream? (V , V are cross flow velocities) |
| A. | V<sub> </sub> + V<sub> </sub> = 1 |
| B. | V<sub> </sub> + V<sub> </sub> = 0 |
| C. | V<sub> </sub><sup>2</sup> + V<sub> </sub><sup>2</sup> = 0 |
| D. | (V<sub> </sub> + V<sub> </sub>)<sup>2</sup> = 1 |
| Answer» D. (V<sub> </sub> + V<sub> </sub>)<sup>2</sup> = 1 | |
| 5. |
There is a large gradient of entropy near the surface of the cone. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
When the angle of attack of the cone with free stream flow is greater than the shock wave angle where is the vortical singularity present? |
| A. | On the windward surface |
| B. | Away from the surface |
| C. | Inside the conical surface |
| D. | On the leeward surface |
| Answer» C. Inside the conical surface | |
| 7. |
Vortical singularity exists at which part of the conical surface? |
| A. | Leeward surface |
| B. | Windward surface |
| C. | Axis of the cone |
| D. | Vertex of the cone |
| Answer» C. Axis of the cone | |
| 8. |
For a cone at an angle of attack, what is the shock wave a function of? |
| A. | Polar angle |
| B. | Azimuth angle |
| C. | Angle of attack |
| D. | Conical ray distance |
| Answer» C. Angle of attack | |
| 9. |
Streamlines curl from the leeward to the windward surface along the conical surface when kept at an angle to the free stream. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
How many variables is the flow field dependent on in case of flow over a cone at an angle of attack? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 11. |
When the right circular cone is kept at an angle of attack to the free stream, what is it considered to be? |
| A. | One dimensional |
| B. | Two dimensional |
| C. | Three dimensional |
| D. | Four dimensional |
| Answer» D. Four dimensional | |
| 12. |
For a supersonic flow over a right circular cone at zero angle of attack, what are the flow properties a function of? |
| A. | Polar angle |
| B. | Azimuth angle |
| C. | Mach number |
| D. | Conical ray distance |
| Answer» B. Azimuth angle | |