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 represent the discretization indexing? |
| A. | Φi,j+1, Φi,j-1 |
| B. | Φe, Φw |
| C. | Φn+1, Φn-1 |
| D. | Φi+1,j, Φi-1,j |
| Answer» C. Φn+1, Φn-1 | |
| 2. |
The values of the flow variables at the faces can be calculated by _____________ in a structured grid. |
| A. | Interpolation |
| B. | Taylor series |
| C. | Fourier series |
| D. | Shape functions |
| Answer» B. Taylor series | |
| 3. |
In structured grids, computer memory is saved by ____________ |
| A. | multi-dimensions |
| B. | localization |
| C. | linearization |
| D. | vectorization |
| Answer» E. | |
| 4. |
Consider the two 2-D cells given here. Which of these is correct? (Hint: Each face of an element points outside). |
| A. | S1i,j-1=S2i,j |
| B. | S1i,j-1=-S2i,j |
| C. | S3i,j-1=-S4i,j |
| D. | S3i,j-1=S4i,j |
| E. | .a) S1i,j-1=S2i,jb) S1i,j-1=-S2i,jc) S3i,j-1=-S4i,jd) S3i,j-1=S4i,j |
| Answer» D. S3i,j-1=S4i,j | |
| 5. |
Which is correct? |
| A. | Local index has a single index and global index has multiple indices |
| B. | Global index has a single index and local index has multiple indices |
| C. | Both local and global indices have a single index |
| D. | Both local and global indices have multiple indices |
| Answer» C. Both local and global indices have a single index | |
| 6. |
In a two-dimensional grid, the elements are ____________ in shape and have ___________ neighbours. |
| A. | Quadrilateral, 4 |
| B. | Cube, 6 |
| C. | Cube, 4 |
| D. | Cuboid, 4 |
| Answer» B. Cube, 6 | |
| 7. |
In a three-dimensional structured grid, an element has ____________ faces and ____________ vertices. |
| A. | 8, 6 |
| B. | 8, 8 |
| C. | 4, 4 |
| D. | 6, 8 |
| Answer» E. | |
| 8. |
Topological information is embedded in a structured mesh through ___________ |
| A. | neighbours |
| B. | boundaries |
| C. | indices |
| D. | discretization |
| Answer» D. discretization | |
| 9. |
Structured grids give ____________ and need ____________ |
| A. | no access to elements, less memory for storage |
| B. | easy access to elements, less memory for storage |
| C. | easy access to elements, more memory for storage |
| D. | no access to elements, more memory for storage |
| Answer» C. easy access to elements, more memory for storage | |
| 10. |
For a regular structured grid, which of these statements is true? |
| A. | Each interior cell is connected to the same number of neighbours |
| B. | Each cell is connected to the same number of neighbours |
| C. | Each boundary cell is connected to the same number of neighbours as an interior cell |
| D. | Each direction has the same number of cells |
| Answer» B. Each cell is connected to the same number of neighbours | |