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| 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 | |