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. |
Which of these schemes will suit a flow with a low Peclet number? |
| A. | Iterative schemes |
| B. | Backward differencing scheme |
| C. | Central differencing scheme |
| D. | Forward differencing scheme |
| Answer» D. Forward differencing scheme | |
| 2. |
Why are isolines circular when the Peclet number is zero? |
| A. | Fluid is flowing and diffusion spreads equally |
| B. | Fluid is stagnant and diffusion spreads equally |
| C. | Fluid is stagnant and diffusion spreads directionally |
| D. | Fluid is flowing and diffusion spreads directionally |
| Answer» C. Fluid is stagnant and diffusion spreads directionally | |
| 3. |
When transportiveness is not accounted in the discretization scheme, the solution becomes ___________ |
| A. | unstable |
| B. | non-converging |
| C. | inaccurate |
| D. | non-conservative |
| Answer» B. non-converging | |
| 4. |
When the Peclet number is large, the value of flow property at the current node influences ___________ |
| A. | the upstream node more |
| B. | both the upstream and downstream nodes equally |
| C. | neither the upstream nor the downstream nodes |
| D. | the downstream node more |
| Answer» E. | |
| 5. |
When the Peclet number is zero, the value of flow property at the current node is influenced by ___________ |
| A. | the upstream node more |
| B. | both the upstream and downstream nodes equally |
| C. | the downstream node more |
| D. | neither the upstream nor the downstream nodes |
| Answer» C. the downstream node more | |
| 6. |
When the Peclet number is large, the isolines are ___________ |
| A. | hyperbolic |
| B. | circular |
| C. | elliptic |
| D. | parabolic |
| Answer» D. parabolic | |
| 7. |
When the Peclet number is zero, the isolines are ___________ |
| A. | hyperbolic |
| B. | elliptic |
| C. | circular |
| D. | parabolic |
| Answer» D. parabolic | |
| 8. |
Peclet number is a ratio of _________ strength to the _________ strength. |
| A. | Diffusive, convective |
| B. | Convective, diffusive |
| C. | Radiative, diffusive |
| D. | Diffusive, radiative |
| Answer» C. Radiative, diffusive | |
| 9. |
Which of these is related to the transportiveness? |
| A. | Courant number |
| B. | Reynolds number |
| C. | Nusselt number |
| D. | Peclet number |
| Answer» E. | |
| 10. |
Transportiveness has an influence on _________ |
| A. | the discretization scheme |
| B. | the solution method for an algebraic system of equations |
| C. | the mathematical model |
| D. | the iterative scheme |
| Answer» B. the solution method for an algebraic system of equations | |