MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
If the ratio of dE dx and dy dx is 0.2823, estimate the value of Froude s number. |
| A. | 0.65 |
| B. | 0.75 |
| C. | 0.85 |
| D. | 0.95 |
| Answer» D. 0.95 | |
| 2. |
The dynamic equation for the slope of water surface in a GVF is not valid for super critical flow. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Calculate the value of Froude s number for a rectangular channel having depth 1.5m and width 2.5m if the value of C = 30 and S0=1 in 1000. |
| A. | 0.1 |
| B. | 0.2 |
| C. | 0.3 |
| D. | 0.4 |
| Answer» C. 0.3 | |
| 4. |
The hydraulic depth of a channel is 0.94m and the velocity of flow is 2 m/s. Calculate the rate of change of depth if the rate of change of specific energy is 2.5 10-4m. |
| A. | 2.33 10<sup>-4</sup>m |
| B. | 3.33 10<sup>-4</sup>m |
| C. | 4.33 10<sup>-4</sup>m |
| D. | 5.33 10<sup>-4</sup>m |
| Answer» D. 5.33 10<sup>-4</sup>m | |
| 5. |
The rate of change of depth is given by 1/x2 and the rate of change of specific energy is given by 3x2 with x ranging from 0 to 0.2, calculate the value of Froude s number. |
| A. | 0.96 |
| B. | 0.97 |
| C. | 0.98 |
| D. | 0.99 |
| Answer» E. | |
| 6. |
The rate of change of specific energy is given by x2/2 and x ranges from 0 to 3, calculate the value of specific energy. |
| A. | 2.5m |
| B. | 3.5m |
| C. | 4.5m |
| D. | 5.5m |
| Answer» D. 5.5m | |
| 7. |
If dE dx = 2.5 10-4 m and dy dx = 3.5 10-4 m, calculate the value of Fr. |
| A. | 0.23 |
| B. | 0.33 |
| C. | 0.43 |
| D. | 0.53 |
| Answer» E. | |
| 8. |
The top width of a triangular channel section is 6m and the side slope of the channel is 1H:4V, calculate the rate of change of specific energy if dy dx = 2 10-5m and V=2 m/s |
| A. | 1.86 10<sup>-5</sup>m |
| B. | 2.86 10<sup>-5</sup>m |
| C. | 3.86 10<sup>-5</sup>m |
| D. | 4.86 10<sup>-5</sup>m |
| Answer» B. 2.86 10<sup>-5</sup>m | |
| 9. |
A rectangular channel has depth of 1m and width of 2m, calculate the rate of change of depth if the rate of change of specific energy is 2 10-5m. Given: Fr=0.48. |
| A. | 0.60 10<sup>-5</sup>m |
| B. | 1.60 10<sup>-5</sup>m |
| C. | 2.60 10<sup>-5</sup>m |
| D. | 3.60 10<sup>-5</sup>m |
| Answer» D. 3.60 10<sup>-5</sup>m | |
| 10. |
Determine the value of the hydraulic depth of a channel having dy dx = 4 10-4 and dE dx = 3.73 10-4. Given:V = 1m/s |
| A. | 0.5m |
| B. | 1.5m |
| C. | 2.5m |
| D. | 3.5m |
| Answer» C. 2.5m | |