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. |
Calculate the value of rate of change of specific energy for a triangular channel having depth 3.5m and the side slope is 1H:2V. Given:V = 2.5 m/s, dy/dx=8.6×10-4. |
| A. | 3.47×10-4m |
| B. | 4.47×10-4m |
| C. | 5.47×10-4m |
| D. | 6.47×10-4m |
| Answer» D. 6.47×10-4m | |
| 2. |
The dimensions of a rectangular channel section is 2.5m×1m. Calculate the rate of change of specific energy if the rate of change of depth is 1.52×10-3m. |
| A. | 1.17×10-3m |
| B. | 2.00×10-3m |
| C. | 2.03×10-3m |
| D. | 2.06×10-3m |
| Answer» B. 2.00×10-3m | |
| 3. |
The dimensions of a rectangular channel section is2.5m×1m. Calculate the value of Sf if the bed slope of the channel is 1 in 600. Given: dy/dx=1.52×10-3m. |
| A. | 0.0002 |
| B. | 0.0003 |
| C. | 0.0004 |
| D. | 0.0005 |
| Answer» E. | |
| 4. |
Calculate the value of bed slope of a trapezoidal channel having depth 2m and width 2.5m with a side slope of1H:3V. Given: dy/dx=1.43×10-3; Sf = 0.00002; V = 1.5 m/s. |
| A. | 1 in 1000 |
| B. | 1 in 900 |
| C. | 1 in 800 |
| D. | 1 in 700 |
| Answer» D. 1 in 700 | |
| 5. |
Determine the rate of change of depth of a rectangular channel having dimensions 2m×3m and the velocity of flow is 2 m/s. |
| A. | Given:S0 = 1 in 500 and Sf = 0.0007. |
| B. | 0.63m |
| C. | 1.63m |
| D. | 2.63m |
| E. | 3.63m |
| Answer» C. 1.63m | |
| 6. |
Calculate the value of Sf for a trapezoidal channel having depth 2m, width 5m and side slope of 1H:1.5V. Given: dy/dx=1.18×10-3,S0 = 1 in 1000, C = 50. |
| A. | 0.00001 |
| B. | 0.00002 |
| C. | 0.00003 |
| D. | 0.00004 |
| Answer» B. 0.00002 | |
| 7. |
Calculate the rate of change of depth of a triangular channel if the depth is 4m and the side slope is1H:2V. Given:S0 = 1 in 1500;Sf = 0.00004 and n=0.010. |
| A. | 8.95×10-4m |
| B. | 9.95×10-4m |
| C. | 10.95×10-4m |
| D. | 11.95×10-4 m |
| Answer» B. 9.95×10-4m | |
| 8. |
Calculate the rate of change of depth of a rectangular channel having depth 1m and width 4m. Given: C = 40, S0 = 1/900, Sf = 0.0005 |
| A. | 4.94×10-4 m |
| B. | 5.94×10-4 m |
| C. | 6.94×10-4 m |
| D. | 7.94×10-4 m |
| Answer» D. 7.94×10-4 m | |
| 9. |
If the value of rate of change of specific energy is 7.79×10-4 m and Sf = 0.00013, calculate the value of bed slope. |
| A. | 1 in 1000 |
| B. | 1 in 1100 |
| C. | 1 in 1200 |
| D. | 1 in 1300 |
| Answer» C. 1 in 1200 | |