SSC SSC JE Civil 2025 Mock Test Series (Paper 1 & Paper 2) Soil Mechanics and Foundation Engineering Permeability
A stratified confined aquifer has top layer of 2 m thickness, middle layer of 4 m thickness and bottom layer of 3 m thickness. If their permeabilities are 6, 16 & 24 m/day respectively, the effective vertical permeability in m/day will be approximately.
1
24
2
16
3
15
4
13