MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Aerodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What the coefficient of lift for an inviscid flow is over a flat plate as obtained from Newtonian theory? |
| A. | c<sub>d</sub> = 2sin<sup>3</sup> |
| B. | c<sub>d</sub> = 2sin<sup>2</sup> |
| C. | c<sub>d</sub> = 2sin<sup>2</sup> cos |
| D. | c<sub>d</sub> = sin<sup>2</sup> cos |
| Answer» D. c<sub>d</sub> = sin<sup>2</sup> cos | |
| 2. |
What is the coefficient of pressure over the surface which is in shadow (no impact from the flow present)? |
| A. | Zero |
| B. | 1 |
| C. | 2 |
| D. | Infinite |
| Answer» B. 1 | |
| 3. |
In which direction does the streamline move downstream the shockwave in a hypersonic flow over a wedge? |
| A. | Straight line |
| B. | Parallel to the surface |
| C. | No fixed direction |
| D. | Perpendicular to the surface |
| Answer» C. No fixed direction | |
| 4. |
The fluid flow in Newtonian theory is modelled as which of the following? |
| A. | Stream of particles in rectilinear motion |
| B. | Wave |
| C. | Stream of particles in conic section |
| D. | Particles moving in a random direction |
| Answer» B. Wave | |
| 5. |
For which of these conditions was Newtonian law devised? |
| A. | Force on a flat plate in hypersonic flow |
| B. | Force on inclined plane in moving fluid |
| C. | Force on curved airfoil in moving fluid |
| D. | Force on flat plate in subsonic flow |
| Answer» C. Force on curved airfoil in moving fluid | |
| 6. |
What is modified Newtonian pressure law? |
| A. | C<sub>p</sub> = C<sub>p max</sub> sin<sup>2</sup> |
| B. | C<sub>p</sub> = C<sub>p max</sub> sin |
| C. | C<sub>p</sub> = C<sub>p max</sub> cos<sup>2</sup> |
| D. | C<sub>p</sub> = C<sub>p max</sub> cos |
| Answer» B. C<sub>p</sub> = C<sub>p max</sub> sin | |
| 7. |
What is the value of Cp at stagnation point for a hypersonic body? |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | Infinite |
| Answer» D. Infinite | |
| 8. |
For which angle (between tangential pressure and freestream) does maximum coefficient of pressure exist for a blunt body? |
| A. | = 0 |
| B. | = |
| C. | = /2 |
| D. | = 2 |
| Answer» D. = 2 | |
| 9. |
What is the density behind the shock in hypersonic flow? |
| A. | Zero |
| B. | Infinite |
| C. | ( frac { + 1}{ 1} ) |
| D. | ( frac { 1}{ + 1} ) |
| Answer» C. ( frac { + 1}{ 1} ) | |
| 10. |
Which of these equations is Newton s sine squared law? |
| A. | C<sub>p</sub> = 2sin<sup>2</sup> |
| B. | C<sub>p</sub> = sin<sup>2</sup> |
| C. | C<sub>p</sub> = ( frac {sin^2 }{2} ) |
| D. | C<sub>p</sub> = ( frac {sin^2 }{4} ) |
| Answer» B. C<sub>p</sub> = sin<sup>2</sup> | |
| 11. |
Newtonian theory is more accurate for two dimensional bodies than three dimensional bodies. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
What are the limiting conditions for Newtonian theory? |
| A. | M<sub> </sub> |
| B. | |
| C. | M<sub> </sub> , 1 |
| D. | M<sub> </sub> 1, |
| Answer» D. M<sub> </sub> 1, | |
| 13. |
What is the use of Newtonian theory? |
| A. | Get pressure distribution over hypersonic body |
| B. | Get pressure distribution over supersonic body |
| C. | Get coefficient of drag over hypersonic body |
| D. | Get coefficient of lift over hypersonic body |
| Answer» B. Get pressure distribution over supersonic body | |