MCQOPTIONS
Saved Bookmarks
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. |
This created a problem in modelling supersonic blunt nose. |
| A. | Change of flow equations from elliptic to hyperbolic |
| B. | High speed with high temperature |
| C. | Supersonic Mach number |
| D. | High temperatures |
| Answer» B. High speed with high temperature | |
| 2. |
What would be the major difference between aerodynamic and hydrodynamic analyses? |
| A. | Temperature |
| B. | Reynolds Number |
| C. | Velocity |
| D. | Domain |
| Answer» C. Velocity | |
| 3. |
Which is not an internal analysis? |
| A. | Combustion |
| B. | Turbulence |
| C. | Flow over compressor |
| D. | Exhaust pipes |
| Answer» D. Exhaust pipes | |
| 4. |
CFD applications provide information for the design of furnaces with ____ thermal efficiency and ____ emissions of pollutants. |
| A. | Increased, reduced |
| B. | Reduced, increased |
| C. | Reduced, reduced |
| D. | Increased, increased |
| Answer» B. Reduced, increased | |
| 5. |
Which of these models would be the best for flow over a submarine? |
| A. | 3-D Navier-Stokes equation for compressible flow without a turbulence model |
| B. | 3-D Navier-Stokes equation for incompressible flow without a turbulence model |
| C. | 3-D Navier-Stokes equation for compressible flow with a turbulence model |
| D. | 3-D Navier-Stokes equation for incompressible flow with a turbulence model |
| Answer» E. | |
| 6. |
CFD can be used to understand the flow behaviour of liquid metal during mould filling. This can be used to ____________ |
| A. | Change the mould according to fluid flow |
| B. | Choose the best metal |
| C. | Improve casting techniques |
| D. | Change temperature |
| Answer» D. Change temperature | |
| 7. |
Which of these will not be applicable for CFD in naval applications? |
| A. | Propeller Design |
| B. | Wind loads |
| C. | Lift analysis |
| D. | Stability in manoeuvring |
| Answer» D. Stability in manoeuvring | |
| 8. |
Which of these forces will have to be analysed using CFD to improve the aerodynamic performance of a vehicle? |
| A. | Lift |
| B. | Drag |
| C. | Thrust |
| D. | Weight |
| Answer» C. Thrust | |
| 9. |
The internal flow analysis of an automobile running based on Otto-cycle will need a ___________ analysis. |
| A. | Transient |
| B. | Steady |
| C. | Finite difference |
| D. | Finite element |
| Answer» B. Steady | |
| 10. |
For which of the following purposes can an automobile company not use the CFD tool? |
| A. | Study heat transfer between its parts |
| B. | Increase aerodynamic performance |
| C. | Increasing load capacity |
| D. | Increasing fuel economy |
| Answer» D. Increasing fuel economy | |