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This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.
1. |
For a streamlined body to achieve low drag coefficient, the boundary layer must_________ |
A. | Flow over the body |
B. | Be attached to the body |
C. | Move away from the body |
D. | Move parallel to the body |
Answer» C. Move away from the body | |
2. |
Drag coefficient is a function of _________ |
A. | Mach number |
B. | Froude s number |
C. | Laminar flow |
D. | Reynolds number |
Answer» B. Froude s number | |
3. |
Drag force can exist between two layers of liquid. |
A. | True |
B. | False |
Answer» B. False | |
4. |
Drag force is directly proportional to ________ |
A. | Density of fluid |
B. | Mass density |
C. | Area |
D. | Flow speed |
Answer» B. Mass density | |