MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Soil Mechanics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If the coefficient of percolation is 18*10-7cm/s and void ratio is 0.5, then the coefficient of permeability k is _________ |
| A. | 26*10<sup>-7</sup>cm/s |
| B. | 6*10<sup>-7</sup> cm/s |
| C. | 3*10<sup>-7</sup>cm/s |
| D. | 13*10<sup>-7</sup>cm/s |
| Answer» C. 3*10<sup>-7</sup>cm/s | |
| 2. |
If the coefficient of permeability of soil is 9*10-7cm/s and porosity is 0.33, then its coefficient of percolation is ______ |
| A. | 8*10<sup>-7</sup>cm/s |
| B. | 27*10<sup>-7</sup>cm/s |
| C. | 26*10<sup>-7</sup>cm/s |
| D. | 13*10<sup>-7</sup>cm/s |
| Answer» C. 26*10<sup>-7</sup>cm/s | |
| 3. |
The relationship between coefficient of permeability and coefficient of percolation is ______ |
| A. | k<sub>p</sub>=kn |
| B. | k<sub>p</sub>=ke |
| C. | k<sub>p</sub>=k/e |
| D. | k<sub>p</sub>=k/n |
| Answer» E. | |
| 4. |
The velocity of flow is proportional to _________ according to Darcy s law. |
| A. | effective stress |
| B. | hydraulic gradient |
| C. | cohesion |
| D. | adhesion |
| Answer» C. cohesion | |
| 5. |
If the soil has discharge velocity is 9*10-7cm/s and the voids ratio of 0.5, then the seepage velocity will be _______ |
| A. | 18*10<sup>-7</sup>cm/s |
| B. | 27*10<sup>-7</sup>cm/s |
| C. | 16*10<sup>-7</sup>cm/s |
| D. | 13*10<sup>-7</sup>cm/s |
| Answer» C. 16*10<sup>-7</sup>cm/s | |
| 6. |
If the discharge velocity is 4*10-7cm/s and the porosity is 33%, then the seepage velocity will be _______ |
| A. | 18*10<sup>-7</sup>cm/s |
| B. | 12*10<sup>-7</sup>cm/s |
| C. | 6*10<sup>-7</sup>cm/s |
| D. | 3*10<sup>-7</sup>cm/s |
| Answer» C. 6*10<sup>-7</sup>cm/s | |
| 7. |
The unit coefficient of permeability is ______ |
| A. | cm |
| B. | s |
| C. | cm/s |
| D. | cm/s<sup>2</sup> |
| Answer» D. cm/s<sup>2</sup> | |
| 8. |
The coefficient of permeability of clean gravel is _________ |
| A. | 1*10<sup>-6</sup> and smaller |
| B. | 5*10<sup>-4</sup> 1*10<sup>-5</sup> |
| C. | 1 1*10<sup>-2</sup> |
| D. | 1 and greater |
| Answer» E. | |
| 9. |
Seepage velocity is inversely proportional to hydraulic gradient. |
| A. | True |
| B. | False |
| Answer» C. | |
| 10. |
The relation between discharge velocity and seepage velocity is ________ |
| A. | V<sub>s</sub>=Ve |
| B. | V<sub>s</sub>=Vn |
| C. | V<sub>s</sub>=V/e |
| D. | V<sub>s</sub>=V/n |
| Answer» E. | |
| 11. |
In the definition of the seepage velocity, the cross-sectional area of the voids is taken as _______ to the direction of flow. |
| A. | parallel |
| B. | opposite |
| C. | perpendicular |
| D. | tangential |
| Answer» D. tangential | |
| 12. |
Darcy s law describes the state of flow within individual pores. |
| A. | True |
| B. | False |
| Answer» C. | |