Consider the following assumptions :1. Failure occurs on a plane surface.2. Wall is smooth but not necessarily vertical.3. Failure wedge is a rigid body.Coulomb's theory of earth pressure is based on assumptions

Consider the following assumptions :1. Failure occurs on a plane surfa

1.	Consider the following assumptions :1. Failure occurs on a plane surface.2. Wall is smooth but not necessarily vertical.3. Failure wedge is a rigid body.Coulomb's theory of earth pressure is based on assumptions
A.	1, 2 and 3
B.	1 and 3
C.	1 and 2
D.	2 and 3
Answer» C. 1 and 2

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Consider the following assumptions :1. Failure occurs on a plane surface.2. Wall is smooth but not necessarily vertical.3. Failure wedge is a rigid body.Coulomb's theory of earth pressure is based on assumptions

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