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SSC JE 2019-20: Soil Mechanics Quiz 4 (App update required to attempt this test)

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Question 1

Which of the following is incorrect statement ?

Question 2

Which of the following is incorrect?

Question 3

For a soil sample, percentage air void is 20% and water content is 40% take specific gravity of solids as 2.7. What will be the dry unit weight for this soil sample?

Question 4

Which of the following statement is false?

Question 5

A granular soil deposit 8 m deep is resting over impervious layer. GWT is 4 m above the ground level. If GWT rises 5 m due to heavy rainfall, then what will be the change in effective stress at 4 m below ground level.

Given : e = 0.6, G = 2.65

Question 6

For an infinite slope of cohesion-less soil, GWT is very below. If it rises upto GL due to rainfall, then what happens to the stability of slop if seepage is not occurring.

Question 7

Why triaxial test is preferred over direct shear test ?

Question 8

At a foundation site, there is an impervious stratum at 30 m and water table at 5 m below ground surface. If then the maximum depth of excavation without the possibility of heaving is __________m.
[Take ]

Question 9

The plastic limit of the soil sample which is same as the natural water content of the soil sample is determined as 24%, whereas the plasticity index is 19%. The consistency index of the tested sample is

Question 10

A soil subgrade sample collected from the site was analysed and the results obtained are as given below:
1. Soil portion passing 0.074 mm sieve = 62%
2. Liquid limit = 47%
3. Plastic limit = 25%
The design pavement thickness (in cm) using group index method is
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Dec 13ESE & GATE CE