The typical deposit of submerged soil, the approximate depth at which the inter-granular pressure equal to 50 kN/m2is (Take )
The fineness modulus of fine sand is
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 (γsat = 20 KN/m3)
If fineness modulus of a sand is 2.7, it is regarded as,
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 (Kh) to that in the vertical direction (Kv) will be:
Approximate ratio of the permeabilities of two clean soils having D10 = 0.6mm and D10 = 0.3mm is:
A loose uniform sand with rounded grains has effective grain size of 0.05 cm. Co-efficient of permeability of the sand is _____.