Which of the following statements is/are correct?

A. Sand samples with identical void ratios will consistently demonstrate equivalent permeability.

B. In sedimentary soil deposits, horizontal permeability surpasses vertical permeability.

In a soil stratum comprising three layers of equal thickness, where the permeability of the second layer is 50% lower than that of the first layer and the permeability of the third layer is 1/3 that of the first layer. Determine the effective hydraulic conductivity for vertical flow. Assume permeability of the first layer is k.

Which of the following factors affects the hydraulic conductivity of soil?

(select the correct answer/s)

State whether the following sentence is true or false.

The stratified soil system is made of soil layers of equivalent hydraulic conductivity.

Select the correct statement/s regarding geophysical methods.

(select the correct answer/s)

Select the incorrect statement. 

The effective hydraulic conductivity of a stratified soil system will depend upon _________.  (select the correct answer)

What is the term used to describe the ratio of flow across a unit area of soil when the hydraulic gradient is equal to one?

In the field, the average hydraulic conductivity of a soil deposit in the direction of flow can be determined by performing pumping tests from wells. What is the minimum number of observation wells required for the pumping test?

In a soil stratum comprising three layers of equal thickness, where the permeability of the second layer is 50% lower than that of the first layer and the permeability of the third layer is 1/3 that of the first layer. Determine the effective hydraulic conductivity for horizontal flow. Assume permeability of the first layer is k.