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This section includes 8 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
1. |
Linearized pressure distribution for higher deflection angle is inaccurate. |
A. | True |
B. | False |
Answer» B. False | |
2. |
What is the coefficient of lift according to the linearized theory over a flat plate kept at an inclination of 3 degrees having a freestream Mach number of 2? |
A. | 0.01 |
B. | 0.12 |
C. | 0.85 |
D. | 0.52 |
Answer» C. 0.85 | |
3. |
How does the coefficient of pressure vary for supersonic flow as the Mach number decreases? |
A. | Increases |
B. | Decreases |
C. | Remains same |
D. | First increases, then decreases |
Answer» B. Decreases | |
4. |
How does the coefficient of pressure vary for subsonic flow as the Mach number increases? |
A. | Increasesb) Decreases |
B. | Decreasesb) Remains samed) First increases, then decreases |
C. | |
Answer» B. Decreasesb) Remains samed) First increases, then decreases | |
5. |
Coefficient of pressure over the forward section of the hump in supersonic flow is negative. |
A. | True |
B. | False |
Answer» C. | |
6. |
What is the coefficient of pressure over an airfoil at supersonic flow at Mach 2 which is inclined to the freestream at 1.4 degrees? |
A. | 1.1 |
B. | 1.92 |
C. | 1.62 |
D. | 2.81 |
Answer» D. 2.81 | |
7. |
Which of these is the relation for linearized pressure coefficient for two – dimensional bodies? |
A. | Cp = \(\frac {- 2u^{‘}}{V_∞}\) |
B. | Cp = \(\frac {- 2v^{‘}}{V_∞}\) |
C. | Cp = \(\frac {- 2w}{V_∞}\) |
D. | Cp = \(\frac {2u^{‘}}{V_∞}\) |
Answer» B. Cp = \(\frac {- 2v^{‘}}{V_∞}\) | |
8. |
What is the relation between coefficient of pressure in terms of gamma and Mach number? |
A. | Cp = \(\frac {1}{γM_∞^2}\)) (1 – \(\frac {p}{p_∞}\)) |
B. | Cp = \(\frac {2}{γM_∞^2}\)(\(\frac {p}{p_∞}\) – 1) |
C. | Cp = γM\(_∞^2\)(\(\frac {p}{p_∞}\)) |
D. | Cp = \(\frac {γM_∞^2}{2} (\frac {p}{p_∞ – 1})\) |
Answer» C. Cp = γM\(_∞^2\)(\(\frac {p}{p_∞}\)) | |