Answer the qn using the diagrams in figure 2
Extracted text: among the plans subjected to the given loads shown in Fig. 2, in which plan the beam size can be the smallest; (Hint: you need to plot the bending moment diagrams of the following structures and make your selection on the basis of the maximum bending moment within the beams)
Extracted text: 1/2 1/2 1/2 1/2 21 21 (a) Plan 1 (b) Plan 2 1/2 P 1/2 21 (c) Plan 3 Fig. 2 Plans subjected to external loads