ANS:B - 2

For a circular slab carrying a uniformly distributed load, the ratio of the maximum negative to maximum positive radial moment is 1. Explanation: When a uniformly distributed load is applied to a circular slab, the bending moments vary along the radius. At the center of the slab, the bending moment is at its maximum positive value. As you move towards the edge of the slab, the bending moment decreases until it becomes negative at the edge, reaching its maximum negative value. In a uniformly loaded circular slab, the magnitude of the maximum positive bending moment at the center is equal to the magnitude of the maximum negative bending moment at the edge. Therefore, the ratio of the maximum negative to maximum positive radial moment is 1. So, the correct answer is: 2