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. |
Find the nature of this system.\((1-M_\infty^2)\frac{\partial u}{\partial x}+\frac{\partial v}{\partial y}=0, \frac{\partial u}{\partial y}-\frac{\partial v}{\partial x}=0. \) |
| A. | Hyperbolic/elliptic |
| B. | Elliptic |
| C. | Hyperbolic |
| D. | Parabolic |
| Answer» B. Elliptic | |
| 2. |
Type of compressible flows depend upon _________ |
| A. | free stream pressure |
| B. | free stream density |
| C. | free stream velocity |
| D. | free stream temperature |
| Answer» D. free stream temperature | |
| 3. |
The mathematical classification of inviscid flow equations are different from that of the viscous flow equations because of __________ |
| A. | absence of viscosity coefficients |
| B. | absence of higher order terms |
| C. | absence of convective terms |
| D. | absence of diffusive terms |
| Answer» C. absence of convective terms | |
| 4. |
Find the nature of the one-dimensional heat equation. |
| A. | Circular |
| B. | Elliptic |
| C. | Hyperbolic |
| D. | Parabolic |
| Answer» E. | |
| 5. |
Which of these equations are used to classify PDEs? |
| A. | \(b(\frac{dy}{dx})-c=0\) |
| B. | \(a(\frac{dy}{dx})^2-b(\frac{dy}{dx})=0\) |
| C. | \((\frac{dy}{dx})^2-(\frac{dy}{dx})+1=0\) |
| D. | \(a(\frac{dy}{dx})^2-b(\frac{dy}{dx})+c=0\) |
| Answer» E. | |
| 6. |
The classification of PDEs are governed by ________ |
| A. | Their highest order derivatives |
| B. | Their least order derivatives |
| C. | The number of terms |
| D. | The constants |
| Answer» B. Their least order derivatives | |
| 7. |
Find the nature of the second-order wave equation. |
| A. | Hyperbolic/elliptic |
| B. | Parabolic |
| C. | Hyperbolic |
| D. | Elliptic |
| Answer» D. Elliptic | |
| 8. |
Which type of flow does the Laplace’s equation \((\frac{\partial^2 \Phi}{\partial x^2}+\frac{\partial^2\Phi}{\partial y^2}=0)\) belong to? |
| A. | Hyperbolic/ Parabolic |
| B. | Hyperbolic |
| C. | Parabolic |
| D. | Elliptic |
| Answer» E. | |
| 9. |
Which of these is not a type of flows based on their mathematical behaviour? |
| A. | Circular |
| B. | Elliptic |
| C. | Parabolic |
| D. | Hyperbolic |
| Answer» B. Elliptic | |