MCQOPTIONS
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MCQOPTIONS
This section includes 7 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. |
The hydraulic radius of an economical rectangular section is 4m, calculate the discharge through the channel if the bed slope of the channel is 1 in 1000 and manning s co efficient is 0.015. |
| A. | 680m<sup>3</sup> s |
| B. | 690m<sup>3</sup> s |
| C. | 700m<sup>3</sup> s |
| D. | 710 m<sup>3</sup> s |
| Answer» B. 690m<sup>3</sup> s | |
| 2. |
The ratio between normal discharge and maximum discharge through a rectangular channel is 32:6, calculate the depth of the channel if the width of the channel is 4m and bed slope, chezy s constant remains same. |
| A. | 1m |
| B. | 2m |
| C. | 3m |
| D. | 4m |
| Answer» B. 2m | |
| 3. |
The ratio between maximum discharge and top width of a rectangular channel is 91:50, calculate the depth of the channel if the bed slope is 1 in 3000 and C = 50. |
| A. | 2m |
| B. | 3m |
| C. | 4m |
| D. | 5m |
| Answer» B. 3m | |
| 4. |
Calculate the section factor for the most economical rectangular section having depth of 4m. |
| A. | 32 |
| B. | 64 |
| C. | 128 |
| D. | 256 |
| Answer» C. 128 | |
| 5. |
The base width of a most economical rectangular channel is 8m, calculate the hydraulic radius of the channel, |
| A. | 5m |
| B. | 4m |
| C. | 3m |
| D. | 2m |
| Answer» E. | |
| 6. |
The maximum discharge through a rectangular channel is 7.15m3 s, determine the depth of the channel where S0 = 1/2000 and C=40. |
| A. | 4m |
| B. | 3m |
| C. | 2m |
| D. | 1m |
| Answer» D. 1m | |
| 7. |
Calculate the maximum discharge through a rectangular channel having width of 5m, bed slope of 1 in 500 and manning s co efficient is 0.020. |
| A. | 33.43m<sup>3</sup> s |
| B. | 32.43m<sup>3</sup> s |
| C. | 31.43m<sup>3</sup> s |
| D. | 30.43m<sup>3</sup> s |
| Answer» C. 31.43m<sup>3</sup> s | |