MCQOPTIONS
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MCQOPTIONS
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. |
For which range of values is the hypersonic similarity rule valid for very slender bodies? |
| A. | K = 0.5 to infinity |
| B. | K > 1.5 |
| C. | 0.5 < K < 1.5 |
| D. | 2 < K < 1000 |
| Answer» B. K > 1.5 | |
| 2. |
Hypersonic similarity is applicable for only irrotational flow. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
On which of this parameter is the coefficient of lift over a two dimensional body at hypersonic flow dependent? |
| A. | . ( frac { }{ } ) |
| B. | , K, M<sub> </sub> |
| C. | M<sub> </sub>T, ( frac { }{ } ), |
| D. | M<sub> </sub>T, K, |
| Answer» D. M<sub> </sub>T, K, | |
| 4. |
The ratio ( frac {C_p}{ ^{2}} ) behind a shock wave is a function of which of these parameters? |
| A. | Hypersonic similarity parameter K and |
| B. | Angle of attack and wedge angle |
| C. | Coefficient of lift and wedge angle |
| D. | Hypersonic similarity parameter and angle of attack |
| Answer» B. Angle of attack and wedge angle | |
| 5. |
Two bodies holding hypersonic similarity at small angle of attack need the values of and M to be same. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
For two bodies with same shape but different scales, which of these parameters must be equal for the flow to be same in hypersonic regime? |
| A. | Mach number |
| B. | Product of Mach number and slenderness ratio |
| C. | Tangential flow velocity |
| D. | Normal flow velocity |
| Answer» C. Tangential flow velocity | |
| 7. |
Why is hypersonic similarity parameter essential? |
| A. | Supersonic flow over wedges |
| B. | Hypersonic flow over slender bodies |
| C. | Hypersonic flow over cone |
| D. | Hypersonic flow over flat plate |
| Answer» C. Hypersonic flow over cone | |
| 8. |
Which of these does not result in two or more flows being dynamically similar? |
| A. | Streamlines are geometrically similar |
| B. | The shape of the blunt body is same |
| C. | Length of the body is same |
| D. | Non dimensional parameters remain same |
| Answer» D. Non dimensional parameters remain same | |