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

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

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

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

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Concrete Technology and Design of Concrete Structures
Examine the following statements :i) Factor of safety for steel should be based on its yield stress,ii) Factor of safety for steel should be based on its ultimate stress,iii) Factor of safety for concrete should be based on its yield stress,iv) Factor of safety for concrete should be based on its ultimate stress.The correct statements are

(ii) and (iii)
(ii) and (iv)
(i) and (iii)
(i) and (iv)

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