Concrete Technology and Design of Concrete Structures
Stress strain curve of high tensile steel

does not show definite yield point but yield point is defined by 0.2% proof stress
does not show definite yield point but yield point is defined by 0.1% proof stress
does not show definite yield point but yield point is defined by 2% proof stress,
has a definite yield point

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

Ductility of column reduces
Capacity of column is decreased
Capacity of column is decreased but ductility of column increases
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

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

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