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

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RCC Structures Design
In a singly reinforced beam

Plane sections transverse to the centre line of the beam before bending remain plane after bending
Steel possesses initial stresses when embedded in concrete
Compression is borne entirely by concrete
Elastic moduli for concrete and steel have different values within the limits of deformation of the beam

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