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. |
If we know the location and flow properties of internal points 1 and 2, then what is the value of local streamline direction θ3 for point 3 which lies at the intersection of characteristic lines? |
| A. | θ3 = \(\frac {1}{2}\)[(K–)1 + (K+)2] |
| B. | θ3 = [(K–)1 + (K+)2 ] |
| C. | θ3 = \(\frac {1}{2}\)[(K–)1 – (K+)2] |
| D. | θ3 = [(K–)1 – (K+)2] |
| Answer» B. θ3 = [(K–)1 + (K+)2 ] | |
| 2. |
Lines originating after limiting line intersect the sonic line. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
At which point is the initial data taken for nozzle flow? |
| A. | Downstream of the limiting characteristic |
| B. | Upstream of the limiting characteristic |
| C. | Expansion region |
| D. | Straightening section |
| Answer» B. Upstream of the limiting characteristic | |
| 4. |
What is the proses of applying method of characteristic known as? |
| A. | Unit process |
| B. | Numerical process |
| C. | Characteristics formulation |
| D. | Computation process |
| Answer» B. Numerical process | |
| 5. |
Which of these steps is not involved in method of characteristics for supersonic nozzle design? |
| A. | Determining characteristic lines |
| B. | Determining compatibility equations for characteristic line |
| C. | Solving compatibility equation point by point |
| D. | Neglect the internal points |
| Answer» E. | |
| 6. |
How many characteristic line/lines can pass through a point P in a streamline? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 7. |
Characteristic lines are those lines in the flow field where the flow variables cannot be determined. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
What is the portion of the nozzle called where the angle between the tangent to the wall and horizontal decreases? |
| A. | Divergent section |
| B. | Expansion section |
| C. | Straightening section |
| D. | Convergen section |
| Answer» D. Convergen section | |
| 9. |
What is the shortcoming of analysing flow properties using quasi-one-dimensional analysis? |
| A. | Time consuming |
| B. | Inaccurate |
| C. | No information on wall contours of nozzle |
| D. | Unable to predict all the flow properties |
| Answer» D. Unable to predict all the flow properties | |
| 10. |
What should be the shape of the nozzle to achieve supersonic speed? |
| A. | Convergent |
| B. | Divergent |
| C. | Convergent-Divergent |
| D. | Divergent-Convergent |
| Answer» D. Divergent-Convergent | |