Concrete Technology and Design of Concrete Structures
Critical section for shear in case of flat slabs is at a distance of

effective depth of slab from periphery of column/drop panel
at the drop panel of slab
d/2 from periphery of column/capital/ drop panel
at the periphery of column

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Concrete Technology and Design of Concrete Structures
Due to circumferential action of the spiral in a spirally reinforced column

Capacity of column is decreased
Both the capacity of column and ductility of column increase
Ductility of column reduces
Capacity of column is decreased but ductility of column increases

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Concrete Technology and Design of Concrete Structures
Select the correct statement for

Elastic modulus of high tensile steel is nearly the same as that of mild steel
Elastic modulus of high tensile steel is more than that of mild steel
High tensile steel is cheaper than mild steel
Carbon percentage in high carbon steel is less than that in mild steel

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