RCC Structures Design
If P kg/m² is the upward pressure on the slab of a plain concrete footing whose projection on either side of the wall is a cm, the depth of foundation D is given by

D = 0.00775 aP
D = 0.07775 aP
D = 0.775 Pa
D = 0.0775 aP

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RCC Structures Design
If the depth of actual neutral axis of a doubly reinforced beam

All listed here
Is equal to the depth of critical neutral axis; the concrete and steel attain their maximum stresses simultaneously
Is greater than the depth of critical neutral axis, the concrete attains its maximum stress earlier
Is less than the depth of critical neutral axis, the steel in the tensile zone attains its maximum stress earlier

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RCC Structures Design
According to load factor method, the permissible load ‘W’ on a short column reinforced with longitudinal bars and lateral stirrups, is

Stress in steel × area of steel
None of these
Stress in concrete × area of concrete
Stress in concrete × area of concrete + Stress in steel × area of steel

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