Use the standard table extracts $($provided for BS $5950)$ to select a universal column to be a pin$-$ended column $($ie$.$ Pinned at both ends$)$ of length $4$m to support an axial load $($Y$-$Y$)$ of $1000$ kN$.$ The steel has a yield stress of approx $340$ MPa.

You are required to perform the necessary calculations to enable you to select a suitable universal column from the table clearly justifying your reason for your selection