MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 solution proposed by Taylor and Maccoll for supersonic flow over a cone is obtained using which of these techniques? |
| A. | Analytically |
| B. | Graphically |
| C. | Numerically |
| D. | Simulation |
| Answer» D. Simulation | |
| 2. |
How many unknowns are present in the Taylor Maccoll equation? |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Four |
| Answer» B. Two | |
| 3. |
What is the flow over right circular cone at zero angle of attack is considered to be? |
| A. | One – dimensional |
| B. | Quasi three – dimensional |
| C. | Three – dimensional |
| D. | Quasi two – dimensional |
| Answer» E. | |
| 4. |
Conical flow is assumed to be symmetric about which of these axis? |
| A. | X – axis |
| B. | Y – axis |
| C. | Z – axis |
| D. | No symmetry |
| Answer» D. No symmetry | |
| 5. |
What is the irrotationally condition for a conical flow? |
| A. | Vθ = \(\frac {∂(V_r )}{∂θ}\) |
| B. | Vϕ = \(\frac {∂(V_r )}{∂ϕ}\) |
| C. | Vθ = \(\frac {1}{r} \frac {∂(V_θ )}{∂θ}\) |
| D. | Vθ = \(\frac {∂(V_r )}{∂θ}\)Vr |
| Answer» B. Vϕ = \(\frac {∂(V_r )}{∂ϕ}\) | |
| 6. |
Conical flow is rotational according to the result obtained from Crocco’s theorem. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Along the streamline of the conical flow, the total enthalpy stays constant. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Which of these is the continuity equation for an axisymmetric flow? |
| A. | ρVθcotθ + ρ\(\frac {∂(V_θ)}{∂θ}\) + Vθ\(\frac {∂(ρ)}{∂θ}\) = 0 |
| B. | 2ρVr + ρVθcotθ + ρ\(\frac {∂(V_θ)}{∂θ}\) + Vθ\(\frac {∂(ρ)}{∂θ}\) = 0 |
| C. | 2ρVr + ρVθcotθ = 0 |
| D. | \(\frac {1}{r{^2}} \frac {∂}{∂r}\) (r2ρVr) + \(\frac {1}{r sinθ} \frac {∂}{∂θ}\)(ρVθsinθ) + \(\frac {1}{r sinθ} \frac {∂(ρV_ϕ)}{∂ϕ}\) = 0 |
| Answer» C. 2ρVr + ρVθcotθ = 0 | |
| 9. |
Which of these is the correct relation for the entropy across a shock for all the streamlines? |
| A. | ∇s = 0 |
| B. | ∇ × s = 0 |
| C. | (∇s) × s = 0 |
| D. | (∇ × s).s = 0 |
| Answer» B. ∇ × s = 0 | |
| 10. |
Which of these is not the assumption for Taylor – Maccoll conical flow? |
| A. | Cone is placed at the zero angle of attack |
| B. | Flow properties along a ray of cone are constant |
| C. | Shock wave is curved |
| D. | Flow is axisymmetric |
| Answer» D. Flow is axisymmetric | |