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. |
The Arbitrary Lagrangian-Eulerian method is advantageous for ___________ |
| A. | Curvilinear grids |
| B. | Non-orthogonal grids |
| C. | Cartesian grids |
| D. | Orthogonal grids |
| Answer» C. Cartesian grids | |
| 2. |
Which of these statements is incorrect about the Arbitrary Lagrangian-Eulerian method? |
| A. | Velocities are stored in the face centres |
| B. | All the components of velocities are stored at the same point |
| C. | Velocities are stored in the vertices |
| D. | Pressures are stored in the cell centres |
| Answer» B. All the components of velocities are stored at the same point | |
| 3. |
Which of these statements is correct about the Arbitrary Lagrangian-Eulerian method? |
| A. | It produces non-converging pressure or velocity fields |
| B. | It produces inconsistent pressure or velocity fields |
| C. | It produces erroneous pressure or velocity fields |
| D. | It produces oscillatory pressure or velocity fields |
| Answer» E. | |
| 4. |
Arbitrary Lagrangian-Eulerian method comes under __________ |
| A. | Staggered grid arrangements |
| B. | Partially staggered grid arrangements |
| C. | Collocated arrangements |
| D. | Orthogonal arrangement |
| Answer» C. Collocated arrangements | |
| 5. |
What is the advantage of the staggered grid arrangement? |
| A. | Helps to avoid stability problems |
| B. | Helps to avoid convergence and consistency problems |
| C. | Helps to avoid convergence problems and oscillations |
| D. | Helps to avoid boundedness problems and oscillations |
| Answer» D. Helps to avoid boundedness problems and oscillations | |
| 6. |
While using a staggered grid, the velocities are stored in the ___________ |
| A. | face centres |
| B. | cell centres |
| C. | edge centres |
| D. | vertices |
| Answer» B. cell centres | |
| 7. |
Which of these is not stored at the cell centres in the staggered grids? |
| A. | Density |
| B. | Pressure |
| C. | Temperature |
| D. | Velocity |
| Answer» E. | |
| 8. |
The staggered grid needs no interpolation to get the __________ |
| A. | velocity field in the momentum equation |
| B. | velocity field in the continuity equation |
| C. | kinetic energy field in the momentum equation |
| D. | kinetic energy in the continuity equation |
| Answer» C. kinetic energy field in the momentum equation | |
| 9. |
Which of these statements is correct when using the staggered grids? |
| A. | Interpolation is enough to find the pressure gradient in the continuity equation |
| B. | No interpolation is needed to find the pressure gradient in the continuity equation |
| C. | No interpolation is needed to find the pressure gradient in the momentum equation |
| D. | Interpolation is enough to find the pressure gradient in the momentum equation |
| Answer» D. Interpolation is enough to find the pressure gradient in the momentum equation | |
| 10. |
The staggered grid can be used to overcome __________ |
| A. | decoupling of pressure and velocities |
| B. | coupling of pressure and velocities |
| C. | interpolation problems |
| D. | boundedness problems |
| Answer» B. coupling of pressure and velocities | |