Structural Analysis
Pick up the incorrect statement from the following:

The gross section of the web of rolled I-beams is the depth of the beam multiplied by the web thickness
The gross section of the web of channels is the depth of the web multiplied by its thickness
None of these
The gross section of the web of plate girders is the depth of the web plate multiplied by its thickness

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

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
Vertical stiffeners are spaced at a distance not greater than 1.5 d and not less than 0.33 d
All of these

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Structural Analysis
To generate the j th column of the flexibility matrix

a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
a unit force is applied at coordinate j and the displacements are calculated at all coordinates
a unit force is applied at coordinate j and the forces are calculated at all coordinates
a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates

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

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