Extracted text: Q1: Design an unlined trapezoidal canal cross section to carry a discharge of 1 cumecs on a longitudinal slope of 0.00020. Assume Manning's roughness coefficient is 0.025, side slopes 2:1, minimum allowable flow velocity is v, 0.64 0.4d and maximum allowable flow min 0.64 velocity is vmax = 0.66 d