RCC Structures Design
If W is total load per unit area on a panel, D is the diameter of the column head, L is the span in two directions, then the sum of the maximum positive bending moment and average of the negative bending moment for the design of the span of a square flat slab, should not be less than

WL/12 (L - 2D/3)²
WL/10 (L - 2D/3)²
WL/12 (L - D/3)²
WL/10 (L + 2D/3)²

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

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

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RCC Structures Design
Pick up the incorrect statement from the following: Tensile reinforcement bars of a rectangular beam

Are maintained at bottom to provide at least local bond stress
Are bent up at suitable places to serve as shear reinforcement
Are curtailed if not required to resist the bending moment
Are bent down at suitable places to serve as shear reinforcement

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