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 discharge through a circular channel section is 14.67m3/s and the velocity of flow is 1.47m/s, calculate the radius of the section if = 75 . |
| A. | 2m |
| B. | 3m |
| C. | 4m |
| D. | 5m |
| Answer» E. | |
| 2. |
The hydraulic radius of a circular channel section is 0.33m, calculate the radius of the channel if the central angle is 60 . |
| A. | 2m |
| B. | 3m |
| C. | 4m |
| D. | 5m |
| Answer» D. 5m | |
| 3. |
Calculate the hydraulic radius of a circular channel if the radius is 6m and the central angle is 70 . |
| A. | 0.58m |
| B. | 0.68m |
| C. | 0.78m |
| D. | 0.88m |
| Answer» C. 0.78m | |
| 4. |
Estimate the discharge through a circular channel section having radius 4m and depth 3m if the channel bed slope is 1 in 2000. Given: n = 0.015. |
| A. | 15.8 m<sup>3</sup>/s |
| B. | 16.8 m<sup>3</sup>/s |
| C. | 17.8 m<sup>3</sup>/s |
| D. | 18.8 m<sup>3</sup>/s |
| Answer» D. 18.8 m<sup>3</sup>/s | |
| 5. |
Determine the hydraulic radius of a circular section having depth d and radius R. |
| A. | ( frac{R(2 -sin u20612 )}{4 } ) |
| B. | ( frac{R(2 -sin u2061 )}{2 } ) |
| C. | 2R( -sin u2061 ) |
| D. | R( -sin u2061 ) |
| Answer» B. ( frac{R(2 -sin u2061 )}{2 } ) | |
| 6. |
Calculate the wetted area of a circular channel having depth d and radius R. |
| A. | R<sup>2</sup> ( ( frac{2 -sin u20612 }{2} )) |
| B. | R<sup>2</sup> (2 -sin u2061 2 ) |
| C. | R<sup>2</sup> sin u20612 |
| D. | R<sup>2</sup> sin u2061 |
| Answer» B. R<sup>2</sup> (2 -sin u2061 2 ) | |
| 7. |
Estimate the wetted perimeter of a circular channel having radius R and depth d, if the angle subtended at the centre is . |
| A. | <sup>R </sup> <sub>2</sub> |
| B. | R |
| C. | 2R |
| D. | 3R |
| Answer» D. 3R | |