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

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

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RCC Structures Design
The spacing of transverse reinforcement of column is decided by the following consideration.

Forty-eight times the diameter of transverse reinforcement
The least lateral dimension of the column
Sixteen times the diameter of the smallest longitudinal reinforcing rods in the column
All listed here

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