MCQOPTIONS
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MCQOPTIONS
This section includes 6 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 is the Mach number of the reflected wave if the velocity of the reflected wave is 600 m/s, velocity of induced mass motion is 350 m/s and the speed of air is 400 m/s? |
| A. | 3.5 |
| B. | 2.375 |
| C. | 1.25 |
| D. | 3.561 |
| Answer» C. 1.25 | |
| 2. |
If the Mach number of the moving shock wave relative to the laboratory Ms = 1.25 then what is the Mach number of the reflected shock wave in a calorically perfect gas? |
| A. | 1.2331 |
| B. | 1.4821 |
| C. | 1.5671 |
| D. | 1.1102 |
| Answer» B. 1.4821 | |
| 3. |
What is the continuity equation for a reflected shock wave? |
| A. | ρ1W = ρ5up |
| B. | ρ1W = ρ2(W – up) |
| C. | ρ2(WR + up) = ρ5WR |
| D. | ρ1W = ρ5(W + up) |
| Answer» D. ρ1W = ρ5(W + up) | |
| 4. |
What is the relation between velocity of the wave and reflected shock wave? |
| A. | WR = W |
| B. | WR < W |
| C. | WR > W |
| D. | WR × W = ∞ |
| Answer» C. WR > W | |
| 5. |
What is a wave diagram? |
| A. | Plot of wave motion between t and x |
| B. | Plot of reflected wave motion between t and x |
| C. | Diagram of shock creation inside shock tube |
| D. | Plot of wave motion between x and t |
| Answer» B. Plot of reflected wave motion between t and x | |
| 6. |
What is the velocity behind a reflected shock wave? |
| A. | Equal to the wave velocity |
| B. | Zero |
| C. | Less than the wave velocity |
| D. | More than the wave velocity |
| Answer» C. Less than the wave velocity | |