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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. |
Which of these is a disadvantage of the Runge-Kutta method over the multipoint method? |
| A. | Computational stability |
| B. | Computational cost |
| C. | Accuracy |
| D. | Convergence |
| Answer» C. Accuracy | |
| 2. |
Consider an nth order accurate Runge-Kutta method. How many times is the derivative evaluated at the fourth time-step? |
| A. | one time |
| B. | two times |
| C. | four times |
| D. | n times |
| Answer» E. | |
| 3. |
The final corrector of the fourth-order Runge-Kutta method uses ___________ |
| A. | Midpoint rule |
| B. | Backward Euler method |
| C. | Simpson s rule |
| D. | Trapezoidal rule |
| Answer» D. Trapezoidal rule | |
| 4. |
The first two steps of the fourth-order Runge-Kutta method use __________ |
| A. | Euler methods |
| B. | Forward Euler method |
| C. | Backward Euler method |
| D. | Explicit Euler method |
| Answer» B. Forward Euler method | |
| 5. |
How many predictor and corrector steps does the fourth-order Runge-Kutta method use? |
| A. | Three predictor and one corrector steps |
| B. | One predictor and three corrector steps |
| C. | Two predictor and two corrector steps |
| D. | One predictor and two corrector steps |
| Answer» D. One predictor and two corrector steps | |
| 6. |
The first two steps of the fourth-order Runge-Kutta method finds the value at which point? |
| A. | At the (n+0.5)<sup>th</sup> point |
| B. | At the (n+1)<sup>th</sup> point |
| C. | At the (n-1)<sup>th</sup> point |
| D. | At the n<sup>th</sup> point |
| Answer» B. At the (n+1)<sup>th</sup> point | |
| 7. |
How many steps does the fourth-order Runge-Kutta method use? |
| A. | Two steps |
| B. | Five steps |
| C. | Four steps |
| D. | Three steps |
| Answer» D. Three steps | |
| 8. |
Which of these correctors does the second-order Runge-Kutta method use? |
| A. | Backward Euler corrector |
| B. | Forward Euler corrector |
| C. | Trapezoidal corrector |
| D. | Midpoint rule corrector |
| Answer» E. | |
| 9. |
The second-order Runge-Kutta method uses __________ as a predictor. |
| A. | backward order method |
| B. | forward Euler method |
| C. | midpoint rule |
| D. | multipoint method |
| Answer» C. midpoint rule | |