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UPSC Civil Service Exam Questions

Q1:

Consider the following characteristic of soil layer :
1. Poisson's ratio
2. Young's modulus
3. Finite nature of soil layer
4. Effect of water table
5. Rigidity of footing
Westergaard's analysis for pressure distribution in soils utilises

A 1, 3, 4 and 5

B 2, 3, 4 and 5

C 3, 4 and 5

D 1 and 2

ANS:D - 1 and 2

The basic assumption of Westergaard's theory includes horizontal deformation is neglected which means effect of poison's ratio won't be there.

Also rigid behavior of footing, hence Young's modulus neglected. Answer must be C.



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