A semi-circular two hinged arch of radius 5 m is carrying a uniformly distributed load of 3 kN/m over the length of the arch. Compute the horizontal thrust of the arch. A) 5.36KN BY 6.36kN 7.36 kN D) 8.36 kN Choose the correct statement(s) from the following: 1- In grain size distribution curve, if the slope of the curve is steep, soil is well graded. 2- In grain size distribution curve, if the slope of the curve is steep, soil is poorly graded. 3- In grain size distribution curve, if the slope of the curve is inclined, soil is well graded. 4- In grain size distribution curve, if the slope of the curve is inclined, soil is poorly graded.