Concrete Technology and Design of Concrete Structures
In a counterfort retaining wall, the main reinforcement is provided on thei) bottom face in front counterfortii) inclined face in front counterfortiii) bottom face in back counterfortiv) inclined face in back counterEortThe correct answer is

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

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Concrete Technology and Design of Concrete Structures
If the foundations of all the columns of a structure are designed on the total live and dead load basis, then

there will be no settlement of columns
the settlement of exterior columns will be more than interior columns
there will be no differential settlement
the settlement of interior columns will be more than exterior columns

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

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