

RCC Structures Design - Engineering
Q1: The angle of internal friction of soil mass is the angle whoseA tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
B sine is equal to the ratio of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane
C cosine is equal to the ratio of the maximum resistance sliding on any internal inclined plane to the normal pressure acting on the plane
D none of these.
ANS:A - tangent is equal to the rate of the maximum resistance to sliding on any internal inclined plane to the normal pressure acting on the plane The angle of internal friction (ϕ) is a fundamental parameter used in soil mechanics to characterize the shear strength properties of soils. It represents the angle at which a soil mass can resist shear stresses before it starts to undergo internal failure and undergoes sliding along an inclined plane. To understand the concept more thoroughly:
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