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. |
What happens to the linearized velocity potential equation for flow over high thickness chord ratio? |
| A. | Becomes zero |
| B. | Becomes 1 |
| C. | Is invalid |
| D. | Becomes infinity |
| Answer» D. Becomes infinity | |
| 2. |
Which equation is satisfied when the Mach number approaches to zero in linearized velocity potential equation? |
| A. | Laplace equation |
| B. | Momentum equation |
| C. | Energy equation |
| D. | Euler s equation |
| Answer» B. Momentum equation | |
| 3. |
Which of these is linearized velocity potential equation? |
| A. | (1 M (_ ^2 )) <sub>xx</sub> + <sub>yy</sub> + <sub>zz</sub> = 0 |
| B. | <sub>xx</sub> + (1 M (_ ^2 )) <sub>yy</sub> + <sub>zz</sub> = 0 |
| C. | <sub>xx</sub> + <sub>yy</sub> + (1 M (_ ^2 )) <sub>zz</sub> = 0 |
| D. | (1 M (_ ^2 ))[ <sub>xx</sub> + <sub>yy</sub> + <sub>zz</sub>] = 0 |
| Answer» B. <sub>xx</sub> + (1 M (_ ^2 )) <sub>yy</sub> + <sub>zz</sub> = 0 | |
| 4. |
Which of these assumptions is invalid for the linearized velocity potential equation? |
| A. | ( frac {u^{ }}{V_ } ) << 1 |
| B. | ( frac {v^{ }}{V_ } ) << 1 |
| C. | ( frac {w^{ }}{V_ } ) >> 1 |
| D. | ( frac {w^{ }}{V_ } ) << 1 |
| Answer» D. ( frac {w^{ }}{V_ } ) << 1 | |
| 5. |
Linearized velocity potential equation is applicable to hypersonic flow. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Which of these assumptions are not made while obtaining the linearized perturbation velocity potential equation? |
| A. | Small perturbations are there |
| B. | Transonic flow is excluded |
| C. | Hypersonic flow is excluded |
| D. | Subsonic flow is excluded |
| Answer» E. | |
| 7. |
Linearized perturbation velocity potential equation is applicable for transonic flow. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
In which equation is total velocity and it double derivative substituted to obtain the perturbation velocity potential equation? |
| A. | Momentum equation |
| B. | Velocity potential equation |
| C. | Perturbation equation |
| D. | Enthalpy equation |
| Answer» C. Perturbation equation | |
| 9. |
What is the velocity potential for a slender body in uniform flow with perturbations? |
| A. | <b> </b>(x, y, z) = V<sub> </sub> x + (x, y, z) |
| B. | <b> </b>(x, y, z) = V<sub> </sub> z + (x, y, z) |
| C. | <b> </b>(x, y, z) = V<sub> </sub> y + (x, y, z) |
| D. | <b> </b> = u<sup> </sup><b>i</b> + v<sup> </sup><b>j</b> + (V<sub> </sub> + w<sup> </sup>)<b>k</b> |
| Answer» B. <b> </b>(x, y, z) = V<sub> </sub> z + (x, y, z) | |
| 10. |
What will be the x component of velocity for a slender body which is immersed in uniform flow having perturbations? |
| A. | V<sub>x</sub> = V<sub> </sub> + u<sup> </sup> |
| B. | V<sub>x</sub> = V<sub> </sub> + v<sup> </sup> |
| C. | V<sub>x</sub> = V<sub> </sub> + w<sup> </sup> |
| D. | V<sub>x</sub> = V<sub> </sub> |
| Answer» B. V<sub>x</sub> = V<sub> </sub> + v<sup> </sup> | |