MCQOPTIONS
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MCQOPTIONS
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 is the technique used to overcome the disadvantages of the Lax-Wendroff technique? |
| A. | Upwind scheme |
| B. | MacCormack s technique |
| C. | Downwind scheme |
| D. | Richtmeyer method |
| Answer» C. Downwind scheme | |
| 2. |
Which of these is wrong for the Lax-Wendroff technique? |
| A. | Linearization is needed |
| B. | Simultaneous equations are not required |
| C. | It is simple to solve |
| D. | It uses the finite difference method |
| Answer» D. It uses the finite difference method | |
| 3. |
Consider three-dimensional Euler equations. What will you do to get the value of (( frac{ partial^2 }{ partial t^2})_{i,j}^t )? |
| A. | Differentiate ( rho_{i,j}^t ) with respect to time twice |
| B. | Differentiate the continuity equation with respect to time |
| C. | Differentiate the value of (( frac{ partial rho}{ partial t})_{i,j}^t ) with respect to time |
| D. | Differentiate the value of ( rho_{i,j}^t ) with respect to time twice |
| Answer» C. Differentiate the value of (( frac{ partial rho}{ partial t})_{i,j}^t ) with respect to time | |
| 4. |
Consider three-dimensional Euler equations. Which equation will you use to find the value (( frac{ partial u}{ partial t})_{i,j}^t )? |
| A. | Energy equation |
| B. | y-momentum equation |
| C. | x-momentum equation |
| D. | Continuity equation |
| Answer» D. Continuity equation | |
| 5. |
What is the disadvantage of the Lax-Wendroff technique? |
| A. | Stability |
| B. | Explicit |
| C. | Order of accuracy |
| D. | (( frac{ partial ^2 rho}{ partial t^2 })_{i,j}^t ) |
| Answer» E. | |
| 6. |
How many terms of the Taylor series expansion is used in the Lax-Wendroff technique? |
| A. | ( t)<sup>1</sup> and ( t)<sup>2</sup> |
| B. | ( t)<sup>0</sup>, ( t)<sup>1</sup> and ( t)<sup>2</sup> |
| C. | ( t)<sup>0</sup> and ( t)<sup>1</sup> |
| D. | ( t)<sup>0</sup> |
| Answer» C. ( t)<sup>0</sup> and ( t)<sup>1</sup> | |
| 7. |
Which series expansion is used by the Lax-Wendroff Technique? |
| A. | Taylor Series |
| B. | Fourier series |
| C. | McLaurin series |
| D. | Laurent series |
| Answer» B. Fourier series | |
| 8. |
What is the order of accuracy of the Lax-Wendroff technique? |
| A. | fourth-order |
| B. | third-order |
| C. | first-order |
| D. | second-order |
| Answer» E. | |
| 9. |
The Lax-Wendroff technique is ____________ |
| A. | explicit, finite-difference method |
| B. | implicit, finite-difference method |
| C. | explicit, finite volume method |
| D. | implicit, finite volume method |
| Answer» B. implicit, finite-difference method | |