Structural Analysis
The minimum horizontal distance between two parallel main reinforcing bars, is

The diameter of the longer bar if their diameters are unequal
Greatest value of the above
The diameter of the bar if their diameters are same
5 mm more than nominal maximum size of the coarse aggregate

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Structural Analysis
Pick up the correct statement for the web stiffeners.

All of these
For horizontal stiffeners, d is the clear distance between the horizontal stiffener and the tension flange
Vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d
d is the distance between flange angles or the clear distance between flanges

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