Westergaard's formula for vertical stress gives greater value of stress than that by the Boussinesq's formula, when r/z exceeds :

Westergaard's formula for vertical stress gives greater value of stres

1.	Westergaard's formula for vertical stress gives greater value of stress than that by the Boussinesq's formula, when r/z exceeds :
A.	1.5
B.	2.5
C.	3.5
D.	4
Answer» B. 2.5

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Westergaard's formula for vertical stress gives greater value of stress than that by the Boussinesq's formula, when r/z exceeds :

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