Q-1) A pipe (E= 110 GPa) carries a load P₁ = 120 kN at A and a uniformly distributed load P₂ = 100 kN on the cap plate at B. Initial pipe diameters and thicknesses are: dAB = 38 mm, AB = 12 mm, dac = 70 mm, IBC = 10 mm. Under loads P₁ and P2, wall thickness IBC increases by 0.0036 mm. Poisson's ratio v for the pipe material is approximately: === (A) 0.27 (B) 0.30 C fac (C) 0.37 (D) 0.34 dac Cap plate TAB AR B