RCC Structures Design
The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes

With the vertical
With the perpendicular to the inclined plane of the soil
None of these
With the horizontal

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RCC Structures Design
Steel beam theory is used for

Steel beams encased in concrete
Beams if shear exceeds 4 times allowable shear stress
Design of simple steel beams
Doubly reinforced beams ignoring compressive stress in concrete

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RCC Structures Design
If the length of a combined footing for two columns l meters apart is L and the projection on the left side of the exterior column is x, then the projection y on the right side of the exterior column, in order to have a uniformly distributed load, is (where x̅ is the distance of centre of gravity of column loads).

y = L/2 + (l - x̅)
y = L/2 - (l - x̅)
y = L/2 - (l + x̅)
y = L - (l - x̅)

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