MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
Coefficient of friction of a laminar flow is_________ |
| A. | Re/16 |
| B. | Re/64 |
| C. | 16/Re |
| D. | 64/Re |
| Answer» D. 64/Re | |
| 2. |
When is a fluid called turbulent? |
| A. | Reynolds number is greater than 2000 |
| B. | Reynolds number is less than 2000 |
| C. | The density of the fluid is low |
| D. | High viscosity of fluid |
| Answer» B. Reynolds number is less than 2000 | |
| 3. |
WHEN_IS_A_FLUID_CALLED_TURBULENT??$ |
| A. | Reynolds number is greater than 2000 |
| B. | Reynolds number is less than 2000 |
| C. | The density of the fluid is low |
| D. | High viscosity of fluid |
| Answer» B. Reynolds number is less than 2000 | |
| 4. |
Coefficient_of_friction_of_a_laminar_flow_is_________$ |
| A. | R<sub>e</sub>/16 |
| B. | R<sub>e</sub>/64 |
| C. | 16/R<sub>e</sub> |
| D. | 64/R<sub>e</sub> |
| Answer» D. 64/R<sub>e</sub> | |
| 5. |
When is the fluid called laminar? |
| A. | Reynolds number is greater than 2000 |
| B. | Reynolds number is less than 2000 |
| C. | The density of the fluid is high |
| D. | Low viscosity |
| Answer» C. The density of the fluid is high | |
| 6. |
Eddy diffusion happens due to_________ |
| A. | Eddy motion |
| B. | Fluid motion |
| C. | Water constraint |
| D. | Eddy constraint |
| Answer» B. Fluid motion | |
| 7. |
What is the formula for kinematic eddy viscosity? |
| A. | Eddy viscosity / kinematic viscosity |
| B. | Eddy viscosity * kinematic viscosity |
| C. | Eddy viscosity / mass density |
| D. | Eddy viscosity / dynamic viscosity |
| Answer» D. Eddy viscosity / dynamic viscosity | |
| 8. |
What is the function of transilient turbulence theory? |
| A. | Parameterizing turbulence |
| B. | Stopping turbulence |
| C. | Initiating turbulence |
| D. | Detecting turbulence |
| Answer» B. Stopping turbulence | |
| 9. |
Eddy viscosity is a turbulent transfer of_________ |
| A. | Fluid |
| B. | Heat |
| C. | Momentum |
| D. | Pressure |
| Answer» D. Pressure | |
| 10. |
What is the ratio of maximum velocity to the average velocity when the fluid passes through two parallel plates? |
| A. | 1/4 |
| B. | 1/2 |
| C. | 3/4 |
| D. | 1 |
| Answer» D. 1 | |
| 11. |
What is an aspect ratio in universal velocity distribution? |
| A. | b*h |
| B. | b/h |
| C. | b+h |
| D. | b-h |
| Answer» C. b+h | |