MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
In the region where \(\tilde{\phi_c}<0 \,and\, \tilde{\phi_c}>1,\) ___________ is dominant.(Note: \(\tilde{\phi_c} \,and\, \tilde{\phi_f}\) are the normalized flow variables at the upwind node and the face). |
| A. | conduction |
| B. | convection |
| C. | radiation |
| D. | anti-diffusion |
| E. | .a) conductionb) convectionc) radiationd) anti-diffusion |
| Answer» C. radiation | |
| 2. |
For a bounded higher-order scheme, \(\tilde{\phi_f}=1 \,when\, \tilde{\phi_c}\)= ____________(Note: \(\tilde{\phi_c} \,and\, \tilde{\phi_f}\) are the normalized flow variables at the upwind node and the face). |
| A. | ∞ |
| B. | 0 |
| C. | 1 |
| D. | 0.5 |
| E. | .a) ∞b) 0c) 1d) 0.5 |
| Answer» D. 0.5 | |
| 3. |
In the region where \(\tilde{\phi_c}<0\, and\, \tilde{\phi_c}>1,\) a bounded scheme should have \(\tilde{\phi_f}\) as that of the ____________(Note: \(\tilde{\phi_c} \,and\, \tilde{\phi_f}\) are the normalized flow variables at the upwind node and the face). |
| A. | SMART scheme |
| B. | QUICK scheme |
| C. | Downwind scheme |
| D. | Upwind scheme |
| E. | .a) SMART schemeb) QUICK schemec) Downwind schemed) Upwind scheme |
| Answer» E. .a) SMART schemeb) QUICK schemec) Downwind schemed) Upwind scheme | |
| 4. |
Consider the following NVD. For a bounded scheme plotted in this NVD, the profile should lie inside which of these regions? |
| A. | D, A |
| B. | A, B |
| C. | B, C |
| D. | C, D |
| Answer» C. B, C | |
| 5. |
Consider the following diagram.Line a in the diagram is ____________ |
| A. | compressive |
| B. | anti-diffusive |
| C. | diffusive |
| D. | convective |
| Answer» D. convective | |
| 6. |
For a scheme to be bounded, its functional relationship should be ____________ |
| A. | quadratic |
| B. | linear |
| C. | smooth |
| D. | continuous |
| Answer» E. | |
| 7. |
A higher-order scheme which is not of high-resolution will have ____________ |
| A. | overshoots |
| B. | undershoots |
| C. | undershoots and overshoots |
| D. | damping ratio |
| Answer» D. damping ratio | |
| 8. |
According to the Godunov’s theorem, any linear monotonic scheme will be maximum ____________ |
| A. | first derivative |
| B. | first-order accurate |
| C. | second-order accurate |
| D. | second derivative |
| Answer» C. second-order accurate | |
| 9. |
The numerical convection schemes should be _________ |
| A. | upwind biased |
| B. | downwind biased |
| C. | upwind or downwind depending on the problem |
| D. | considering both upwind and downwind equally |
| Answer» B. downwind biased | |