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

Vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d
All of these
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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Structural Analysis
When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that

the load position should be such that the section divides it equally on both sides
the tail of the load reaches the section
the head of the load reaches the section
the load position should be such that the section divides the load in the same ratio as it divides the span

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