In a three-layered soil system the thicknesses of the top and bottom l – McqOptions

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1.	In a three-layered soil system the thicknesses of the top and bottom layers each has half the thickness of the middle layer. The coefficients of permeability of top and bottom layers each are double the coefficient of permeability k of the middle layer. When horizontal flow occurs, the equivalent coefficient of permeability of the system will be
A.	1.5 k
B.	3.0 k
C.	4.5 k
D.	6.0 k
Answer» B. 3.0 k

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