Extracted text: Q1: Beam AB, BC, CD are pin-connected at B and C. Knowing that the allowable normal stress is (110) MPa in tension and (-150) MPa in compression and the section modulus is (258.6×106 m³ and 87.47×10 m³) for top and bottom respectively, determine: A) The largest permissible value of (w) if beam BC is not overstressed. B) The corresponding maximum distance (a) for which the cantilever beams AB and CD are not overstressed. 12.5 mm - 200 mm- A |B C| D 150 'mm - 7.2 m- 12.5 mm