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

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

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Concrete Technology and Design of Concrete Structures
The main reinforcement in the toe of a T- shaped R C. retaining wall is provided oni) top face parallel to the wallii) top face perpendicular to the walliii) bottom face paralleUo the walliv) bottom face perpendicular to the wallThe correct answer is

only (iv) is correct
(iii) and (iv) are correct
(i) and (ii) are correct
only (ii) is correct

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