MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Computational Fluid Dynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
I have to model a simple rectangular wing for my experimental aircraft testing a new technology on it. I have to choose an airfoil among the ten options given for my wing which would give the best aerodynamic performance. Suggest the best method to test and fix one airfoil. |
| A. | CFD analysis |
| B. | Literature |
| C. | Wind tunnel models |
| D. | Calculations |
| Answer» B. Literature | |
| 2. |
____________ of a mathematical model is a limitation to CFD. |
| A. | Reliability |
| B. | Accuracy |
| C. | Solvability |
| D. | Validity |
| Answer» E. | |
| 3. |
Consider the following case. A teacher wants to show the effects of severe turbulence over an aircraft to the students. What is the best way to simulate it? |
| A. | Wind tunnel with analytical backup |
| B. | Wind tunnel with CFD backup |
| C. | Flow visualization in wind tunnel |
| D. | Turbulence modelling and animation using CFD tools |
| Answer» D. Turbulence modelling and animation using CFD tools | |
| 4. |
An optimal prediction is ______________ |
| A. | Computational only |
| B. | A combination of Computational and Experimental |
| C. | Analytical only |
| D. | Experimental only |
| Answer» C. Analytical only | |
| 5. |
For optimization of designs, CFD is ___________ |
| A. | Slow and expensive |
| B. | Cost-effective but slow |
| C. | Fast but expensive |
| D. | Cost-effective and fast |
| Answer» E. | |
| 6. |
CFD can give ____________ results than experiments. |
| A. | Detailed |
| B. | Accurate |
| C. | Reliable |
| D. | Approximate |
| Answer» B. Accurate | |
| 7. |
Why ideal conditions should be simulated in CFD? |
| A. | Experimental analysis is impossible for ideal conditions |
| B. | Experimental set-up will have imperfections |
| C. | Experimental set-up will lead to wrong solutions |
| D. | Experimental analysis can be done for ideal cases |
| Answer» C. Experimental set-up will lead to wrong solutions | |
| 8. |
What is the advantage of numerical methods over analytical method? |
| A. | Speed |
| B. | Cost |
| C. | Flexibility |
| D. | Time |
| Answer» D. Time | |
| 9. |
What is the disadvantage in predicting a complex problem with a very limited objective in CFD? |
| A. | Time-consuming |
| B. | Impossible to solve |
| C. | Slower |
| D. | Expensive |
| Answer» E. | |
| 10. |
Computational investigation is _____________ experimental investigation. |
| A. | Faster than |
| B. | At the same speed of |
| C. | Slower than |
| D. | Cannot be compared |
| Answer» B. At the same speed of | |