MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The trends of velocity change in a duct for both subsonic and supersonic flow are identical. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which equation is obtained when Mach number is equated to zero in area-velocity relation? |
| A. | Momentum equation |
| B. | Continuity equation |
| C. | Energy equation |
| D. | Bernoulli s equation |
| Answer» C. Energy equation | |
| 3. |
What is the minimum area of a duct known as? |
| A. | Throat |
| B. | Minimum area duct |
| C. | Convergent duct |
| D. | Divergent duct |
| Answer» B. Minimum area duct | |
| 4. |
What happens to the velocity of the supersonic flow in the convergent duct? |
| A. | Decreases |
| B. | Increases |
| C. | Remains the same |
| D. | Changes periodically |
| Answer» B. Increases | |
| 5. |
For which of these flows do we need a divergent duct to increase the velocity of the flow? |
| A. | Subsonic flow |
| B. | Supersonic flow |
| C. | Hypersonic flow |
| D. | Sonic flow |
| Answer» C. Hypersonic flow | |
| 6. |
For a subsonic flow, what should be the value of dA to get flow acceleration? |
| A. | Zero |
| B. | Negative |
| C. | Positive |
| D. | One |
| Answer» C. Positive | |
| 7. |
Sonic flow exists at the throat of an equilibrium chemically reacting nozzle flow? |
| A. | True |
| B. | False |
| Answer» B. False | |