RCC Structures Design
The radius of a bar bend to form a hook, should not be less than

Thrice the diameter
Four times the diameter
Five times the diameter
Twice the diameter

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RCC Structures Design
Bottom bars under the columns are extended into the interior of the footing slab to a distance greater than

42 diameters from the inner edge of the column
24 diameters from the centre of the column
42 diameters from the centre of the column
42 diameters from the outer edge of the column

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