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SOIL MECHANICS_APPSC CE Quiz-3

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Question 1

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

Question 2

The fineness modulus of fine sand is

Question 3

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:

Question 4

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)

Question 5

If fineness modulus of a sand is 2.7, it is regarded as,

Question 6

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

Question 7

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?

Question 8

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:

Question 9

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

Question 10

A loose uniform sand with rounded grains has effective grain size of 0.05 cm. Co-efficient of permeability of the sand is _____.
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