SOIL MECHANICS_APPSC CE Quiz-3

The typical deposit of submerged soil, the approximate depth at which the inter-granular pressure equal to 50 kN/m²is (Take )

The water level in a lake is 5 m above the bed. The saturated unit weight of the lake bed soil is 20 KN/m³. The unit weight of water is 10 KN/m³. The effective vertical stress at 5m depth below the lake bed is:

In a typical deposit of submerged soil, the approximate depth at which the inter-granular pressure is equal to 50 KN/m² is (γ_sat = 20 KN/m³)

Given for a soil stratum:

Coefficient of permeability in horizontal direction = 3 m/day

Coefficient of permeability in vertical direction = 1/3 m/day

The effective permeability of the stratum is

In a falling head permeability test, the time taken for head to fall from 27 cm to 3 cm is 10 minutes, if the test is repeated with the same initial head i.e. 27 cm then what time would it take for head to fall to 9 cm?

In a Soil deposit of three layers of equal thickness, the permeabilities of first, second and third layers are in the ratio 1:2:3 . The ratio of average permeability in horizontal direction (K_h) to that in the vertical direction (K_v) will be:

Approximate ratio of the permeabilities of two clean soils having D₁₀ = 0.6mm and D₁₀ = 0.3mm is: