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

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RCC Structures Design
A pre-stressed concrete member is preferred because

Its dimensions are not decided from the diagonal tensile stress
All listed here
Removal of cracks in the members due to shrinkage
Large size of long beams carrying large shear force need not be adopted

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