RCC Structures Design
To ensure that the hogging bending moment at two points of suspension of a pile of length L equals the sagging moment at its centre, the distances of the points of suspension from either end, is

0.307 L
0.207 L
0.407 L
0.107 L

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RCC Structures Design
Based on punching shear consideration, the overall depth of a combined footing under a column A, is

(Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column)
(Area of the column A × Safe punching stress)/Load on column A
None of these
(Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column)

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