[Solved] The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is

Q.	The major principal stress in an element of cohesion-less soil within the backfill of a retaining wall is
A.	Vertical if the soil is in an active state of plastic equilibrium
B.	Vertical if the soil is in a passive state of plastic equilibrium
C.	Inclined at 45° to the vertical plane
D.	None of the above
Answer» A. Vertical if the soil is in an active state of plastic equilibrium

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