Theory of Structures
A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be

p/a²
2p/a²
4p/a²
3p/a²

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Theory of Structures
Pick up the correct statement from the following:

In a loaded beam, the moment at which the entire section of the beam becomes fully plastic, is called plastic moment
In a loaded beam, the moment at which the first yield occurs is called yield moment
All of these
In a fully plastic stage of the beam, the neutral axis divides the section in two sections of equal area

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