MCQOPTIONS
Saved Bookmarks
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. |
Consistency should be ensured ___________ |
| A. | at the interior nodes |
| B. | in the global domain |
| C. | at the boundary nodes |
| D. | at each node |
| Answer» E. | |
| 2. |
If the discretization error is the ratio of grid spacing to time step, then for the system to be consistent, which of these is correct? |
| A. | the ratio should be equal to one |
| B. | the ratio should be equal to zero |
| C. | the ratio should tend to zero |
| D. | the ratio should be equal to negative one |
| Answer» D. the ratio should be equal to negative one | |
| 3. |
For the solution of a system of discretized equations with consistent approximations to be consistent, which of these conditions is necessary? |
| A. | Boundedness |
| B. | Stability |
| C. | Convergence |
| D. | Accuracy |
| Answer» C. Convergence | |
| 4. |
For consistency to have some relationship with discretization error, the discretization error should be ____________ |
| A. | some powers of time-step |
| B. | some powers of grid spacing |
| C. | some powers of time-step and/ or grid spacing |
| D. | some function of time-step and/ or grid spacing |
| Answer» B. some powers of grid spacing | |
| 5. |
Consistency comes into the picture because of _________ |
| A. | McLaurin series expansion |
| B. | Power series expansion |
| C. | Fourier series expansion |
| D. | Taylor series expansion |
| Answer» E. | |
| 6. |
Consistency is defined when the discretization error approaches __________ |
| A. | infinity |
| B. | 1 |
| C. | 0 |
| D. | -1 |
| Answer» D. -1 | |
| 7. |
Courant number is applicable for __________ |
| A. | implicit transient schemes |
| B. | explicit transient schemes |
| C. | quadratic schemes |
| D. | high-resolution schemes |
| Answer» C. quadratic schemes | |
| 8. |
What is the other name for Courant number? |
| A. | CFL number |
| B. | Peclet number |
| C. | Nusselt number |
| D. | Scarborough number |
| Answer» B. Peclet number | |
| 9. |
Consistency of a numerical solution is directly associated with __________ |
| A. | convergence |
| B. | stability |
| C. | iterative error |
| D. | discretization error |
| Answer» E. | |
| 10. |
A solution to some algebraic equation is said to be consistent if _________ |
| A. | the error is bounded |
| B. | the computation time is not prohibitive |
| C. | the numerical solution approaches the exact solution when time step and grid spacing tends to zero |
| D. | the solution does not change with further iterations |
| Answer» D. the solution does not change with further iterations | |