4 mm
5 mm
6 mm
7 mm
Answer is Wrong!
Answer is Right!
The correct answer is B. 5 mm.
The diameter of transverse reinforcement of columns should be equal to one-fourth of the diameter of the main steel rods but not less than 5 mm. This is to ensure that the transverse reinforcement is able to provide adequate confinement to the concrete and prevent it from buckling.
Option A is
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