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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. |
In discharge of water over Ogee weir, discharge is directly proportional to the first power of length. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
In discharge of water over narrow crested weir, discharge is directly proportional to the second power of height. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The height of water on upstream and downstream side of a submerged weir of 4 m length are 23.5 cm and 14 cm. If Cd for free and drowned portions are .61 and .75 respectively, find the discharge over the weir. |
| A. | m<sup>3</sup>/s |
| B. | 1.35 m<sup>3</sup>/s |
| C. | 3.2 m<sup>3</sup>/s |
| D. | .55 m<sup>3</sup>/s |
| Answer» B. 1.35 m<sup>3</sup>/s | |
| 4. |
An Ogee weir 3.4 m long had a head of 40 cm of water. If CD = 0.63 find the discharge over the weir. |
| A. | 1.61 m<sup>3</sup>/s |
| B. | 2.5 m<sup>3</sup>/s |
| C. | 3.1 m<sup>3</sup>/s |
| D. | 3.3 m<sup>3</sup>/s |
| Answer» B. 2.5 m<sup>3</sup>/s | |
| 5. |
The height of water on upstream and downstream side of a submerged weir of 4 m length are 24 cm and 13 cm. If Cd for free and drowned portions are .62 and .78 respectively, find the discharge over the weir. |
| A. | .85 m<sup>3</sup>/s |
| B. | 1.35 m<sup>3</sup>/s |
| C. | 3.2 m<sup>3</sup>/s |
| D. | .55 m<sup>3</sup>/s |
| Answer» B. 1.35 m<sup>3</sup>/s | |
| 6. |
An Ogee weir 5 m long had a head of 40 cm of water. If CD = 0.61, find the discharge over the weir. |
| A. | 2.9 m<sup>3</sup>/s |
| B. | 2.3 m<sup>3</sup>/s |
| C. | 3.1 m<sup>3</sup>/s |
| D. | 3.3 m<sup>3</sup>/s |
| Answer» B. 2.3 m<sup>3</sup>/s | |
| 7. |
For discharge over ogee weir discharge is directly proportional to length but for discharge over narrow crested weir it is inversely proportional to length. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
In discharge of water over ogee weir, discharge is directly proportional to the second power of length. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
In discharge of water over narrow crested weir, discharge is directly proportional to the cube root of acceleration due to gravity. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
In discharge of water over narrow crested weir, head of water is directly proportional to Discharge Coefficient. |
| A. | True |
| B. | False |
| Answer» C. | |