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UPSC Civil Service Exam Questions

Q1:

The change in the vertical stress in the soil mass estimated by Boussinesq's equation when Poisson's ratio of soil changes from 0.3 to 0.5 will be

A reduction by 30%

B increase by 50%

C reduction by 20%

D no change

ANS:D - no change

As vertical stress in the case of Boussinesq analysis is independent of material i.e. E&u.

So, no change.



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