Presence of tail-water in a gravity dam ___________________

Question

Presence of tail-water in a gravity dam ____________________

Options:

A . increases the principal stress and decreases the shear stress

B . increases both the principal stress and the shear stress

C . decreases the principal stress and increases the shear stress

D . decreases both the principal stress and the shear stress

Answer: Option D
Answer: (d).decreases both the principal stress and the shear stress

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