1. The document discusses loading and support conditions in structural analysis. It defines different types of loads like point loads, distributed loads, and concentrated moments. It also describes different support conditions like fixed supports, pinned supports, and pinned on rollers. 2. It explains that free body diagrams should show all external forces, dimensions, and the coordinate system. Equations of static equilibrium are then applied to solve for reactions. 3. Examples are provided to demonstrate solving for reactions on a diving board and a beam with a distributed load using free body diagrams and the equations of equilibrium. A method for finding forces in a planar truss is also outlined.