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

5 mm more than nominal maximum size of the coarse aggregate
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

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Structural Analysis
Pick up the correct statement applicable to cased columns.

The surface and edges of the steel column should be provided a concrete cover not less than 50 mm
All of these
Single I-beam or channels back with or without flange plates may be used
Single I-beam or channels back with or without flange plates may be used

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

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

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