MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In a water supply system, water flows in from pipes 1 and 2 and goes out from pipes 3 and 4 as shown. If all the pipes have the same diameter, which of the following must be correct? |
| A. | the sum of the flow velocities in 1 and 2 is equal to that in 3 and 4 |
| B. | the sum of the flow velocities in 1 and 3 is equal to that in 2 and 4 |
| C. | the sum of the flow velocities in 1 and 4 is equal to that in 2 and 3 |
| D. | the flow velocities in 1 and 2 is equal to that in 3 and 4 |
| Answer» B. the sum of the flow velocities in 1 and 3 is equal to that in 2 and 4 | |
| 2. |
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ay2 + bxy and v = ax2 + bxy. The flow will be continuous if |
| A. | a + b = 0 |
| B. | a – b = 0 |
| C. | x + y = 0 |
| D. | x – y = 0 |
| Answer» D. x – y = 0 | |
| 3. |
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax + by and v = ax – by. For what condition will the flow field be continuous? |
| A. | impossible |
| B. | possible if a = b |
| C. | possible if a = 2b |
| D. | possible for all values of a and b |
| Answer» E. | |
| 4. |
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax2 + bxy and v = bxy + ay2. The condition for the flow field to be continuous is |
| A. | independent of the constants (a; b) but dependent on the variables (x; y) |
| B. | independent of the variables (x; y) but dependent on the constants (a; b) |
| C. | independent of both the constants (a; b) and the variables (x; y) |
| D. | dependent on both the constants (a; b) and the variables (x; y) |
| Answer» B. independent of the variables (x; y) but dependent on the constants (a; b) | |
| 5. |
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax2 + bxy and v = cxy +dy2. What should be the condition for the flow field to be continuous? |
| A. | (a + b)x + (c + d)y = 0 |
| B. | (a + c)x + (b + d)y = 0 |
| C. | (2a + b)x + (c + 2d)y = 0 |
| D. | (2a + c)x + (b + 2d)y = 0 |
| Answer» E. | |
| 6. |
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = axy and v = bx2 + cy2. What should be the condition for the flow field to be continuous? |
| A. | a + b = 0 |
| B. | a + c = 0 |
| C. | a + 2b = 0 |
| D. | a + 2c = 0 |
| Answer» E. | |
| 7. |
In a two dimensional flow, the component of the velocity along the X-axis and the Y-axis are u = ax2 + bxy + cy2 and v = cxy. What should be the condition for the flow field to be continuous? |
| A. | a + c = 0 |
| B. | b + c = 0 |
| C. | 2a + c = 0 |
| D. | 2b + c = 0 |
| Answer» D. 2b + c = 0 | |
| 8. |
In a two dimensional flow, the component of the velocity along the X-axis is u = ax2 + bxy + cy2. |
| A. | If v = 0 at y = 0, what will be the velocity component in the Y-direction? |
| B. | v = 2axy + by2 |
| C. | v = 2axy + b ⁄ 2 y2 |
| D. | v = -2axy – b ⁄ 2 y2 |
| E. | v = -axy – b ⁄ 2 y2 |
| Answer» D. v = -2axy – b ⁄ 2 y2 | |
| 9. |
If a liquid enters a pipe of diameter d with a velocity v, what will it’s velocity at the exit if the diameter reduces to 0.5d? |
| A. | v |
| B. | 0.5v |
| C. | 2v |
| D. | 4v |
| Answer» E. | |