MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
The coefficient of permeability of the two soil layers 1 and 2 in soil deposit is 9*10-7 cm/s and 4*10-7 cm/s respectively. The thickness of the layers is equal. The value of average permeability perpendicular to bedding planes is ________ |
| A. | 4.5*10<sup>-7</sup> cm/s |
| B. | 5.5*10<sup>-7</sup> cm/s |
| C. | 6.5*10<sup>-7</sup> cm/s |
| D. | 7.5*10<sup>-7</sup> cm/s |
| Answer» C. 6.5*10<sup>-7</sup> cm/s | |
| 2. |
The coefficient of permeability of the two soil layers 1 and 2 in soil deposit is 9*10-7 cm/s and 4*10-7 cm/s respectively. The thickness of the layers is equal. The value of average permeability parallel to bedding planes is ________ |
| A. | 4.5*10<sup>-7</sup> cm/s |
| B. | 5.5*10<sup>-7</sup> cm/s |
| C. | 6.5*10<sup>-7</sup> cm/s |
| D. | 7.5*10<sup>-7</sup> cm/s |
| Answer» D. 7.5*10<sup>-7</sup> cm/s | |
| 3. |
What will be its average permeability perpendicular to the bedding plane if a soil deposit has three layers of soil? The permeability of the second layer is 1/2 that of the first layer and the permeability of the third layer is 1/3 that of the first layer. The thickness of each layer is equal. |
| A. | k |
| B. | 1/2k |
| C. | 1/3k |
| D. | 1/4k |
| Answer» C. 1/3k | |
| 4. |
A soil deposit has three layers of soil. The permeability of the second layer is 1/2 that of the first layer and the permeability of the third layer is 1/3 that of the first layer. The thickness of each layer is equal. What will be its average permeability parallel to the bedding plane? |
| A. | 11k |
| B. | 18k |
| C. | ( frac{11}{18}k ) |
| D. | ( frac{18}{11}k ) |
| Answer» D. ( frac{18}{11}k ) | |
| 5. |
What will be its average permeability perpendicular to the bedding plane if a soil deposit has three layers of soil? The permeability of the second layer is twice that of the first layer and the permeability of the third layer is thrice that of the first layer. The thickness of each layer is 5m. |
| A. | 11k |
| B. | 18k |
| C. | ( frac{11}{18}k ) |
| D. | ( frac{18}{11}k ) |
| Answer» E. | |
| 6. |
A soil deposit has three layers of soil. The permeability of the second layer is twice that of the first layer and the permeability of the third layer is thrice that of the first layer. The thickness of each layer is 5m. What will be its average permeability parallel to the bedding plane? |
| A. | k |
| B. | 2k |
| C. | 3k |
| D. | 4k |
| Answer» C. 3k | |
| 7. |
The average permeability perpendicular to the bedding planes is given by________ |
| A. | (k = frac{k_1 z_1+k_2 z_2+ .+k_n z_n}{z}* frac{1}{2} ) |
| B. | (k = frac{1}{ frac{z_1}{k_1} + frac{z_2}{k_2} + + frac{z_n}{k_n}} ) |
| C. | (k = frac{z}{ frac{z_1}{k_1} + frac{z_2}{k_2} + + frac{z_n}{k_n}} ) |
| D. | (k = frac{k_1 z_1+k_2 z_2+ .+k_n z_n}{z} ) |
| Answer» D. (k = frac{k_1 z_1+k_2 z_2+ .+k_n z_n}{z} ) | |
| 8. |
The average permeability parallel to the bedding planes is given by________ |
| A. | (k = frac{k_1 z_1+k_2 z_2+ .+k_n z_n}{z}* frac{1}{2} ) |
| B. | (k = frac{1}{ frac{z_1}{k_1} + frac{z_2}{k_2} + + frac{z_n}{k_n}} ) |
| C. | (k = frac{z}{ frac{z_1}{k_1} + frac{z_2}{k_2} + + frac{z_n}{k_n}} ) |
| D. | (k = frac{k_1 z_1+k_2 z_2+ .+k_n z_n}{z} ) |
| Answer» E. | |
| 9. |
The average coefficient of permeability of whole deposit will depend upon _________ |
| A. | direction of flow with respect to bedding plane |
| B. | direction of flow but not with respect to the bedding plane |
| C. | length of the bedding plane |
| D. | width of the bedding plane |
| Answer» B. direction of flow but not with respect to the bedding plane | |
| 10. |
Each layer of stratified soil deposit has its own coefficient of permeability. |
| A. | True |
| B. | False |
| Answer» B. False | |