ANS:C -

The maximum radial moment at the center of a circular slab under a uniformly distributed load W can be calculated using the formula for the moment of a uniformly distributed load over a circular area. The formula for the maximum radial moment Mmax​ at the center of the circular slab is given by: Mmax​=W⋅R​/4 Where:

• Mmax​ = Maximum radial moment at the center of the slab
• W = Load on the circular slab
• R = Radius of the circular slab

This formula is derived from the concept of equilibrium, considering the distributed load acting over the circular area and the resultant moment it creates about the center of the slab. The maximum radial moment occurs at the center of the circular slab, where the lever arm (the radius) is the maximum distance from the center. The formula calculates this maximum moment based on the total load and the radius of the slab.