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 is correct about the SIMPLE algorithm? |
| A. | It is a looped algorithm |
| B. | It is iterative |
| C. | It is sequential |
| D. | It is simultaneous |
| Answer» E. | |
| 2. |
A large relaxation factor will lead to ____________ |
| A. | large and oscillatory iteration steps |
| B. | large and stable iteration steps |
| C. | small and oscillatory iteration steps |
| D. | small and stable iteration steps |
| Answer» B. large and stable iteration steps | |
| 3. |
Which of these statements is correct about a small relaxation factor? |
| A. | Computation is unstable but convergence is fast |
| B. | Computation is stable and convergence is fast |
| C. | Computation is stable but convergence is slow |
| D. | Computation is unstable and convergence is slow |
| Answer» D. Computation is unstable and convergence is slow | |
| 4. |
The range of the relaxation factor in the pressure correction equation is ____________ |
| A. | 0 ≤ factor < 1 |
| B. | 0 < factor < 1 |
| C. | 0 < factor ≤ 1 |
| D. | 0 ≤ factor ≤ 1 |
| Answer» C. 0 < factor ≤ 1 | |
| 5. |
Which of these statements is correct about the pressure correction equation? |
| A. | An over-relaxation factor is used to avoid divergence |
| B. | An under-relaxation factor is used to avoid divergence |
| C. | An under-relaxation factor is used to avoid undershoots |
| D. | An over-relaxation factor is used to avoid undershoots |
| Answer» C. An under-relaxation factor is used to avoid undershoots | |
| 6. |
Which of these equations is/are obtained from the continuity equation? |
| A. | Both the pressure and velocity-correction equations |
| B. | Velocity-correction equation |
| C. | Pressure-correction equation |
| D. | Density-correction equation |
| Answer» D. Density-correction equation | |
| 7. |
Which of these equations are used in the SIMPLE algorithm? |
| A. | Momentum and energy equations |
| B. | Energy equation and equation of state |
| C. | Equation of state and continuity equation |
| D. | Continuity and momentum equations |
| Answer» E. | |
| 8. |
In the momentum equation for the correction field, which of these terms are neglected? |
| A. | Neighbouring correction terms |
| B. | All the coefficients |
| C. | The source terms |
| D. | The velocity terms |
| Answer» B. All the coefficients | |
| 9. |
The SIMPLE algorithm is a ____________ |
| A. | Weighted average method |
| B. | Predictor-corrector method |
| C. | Euler method |
| D. | Heun’s method |
| Answer» C. Euler method | |
| 10. |
What does SIMPLE stand for? |
| A. | Semi-Implicit Method for Pressure-Linked Equations |
| B. | Simple Implicit Method for Pressure-Linked Equations |
| C. | Solution in Iterative Method for Pressure-Links Explicitly |
| D. | Simple Iterative Method for Pressure-Links Explicitly |
| Answer» B. Simple Implicit Method for Pressure-Linked Equations | |