Few examples of representing revolved sections are shown in figure 5.

Figure 5 some examples of revolved sections of objects.

Section of simple solids
The subsequent paragraphs explains the sections of simple solids when the section plane is oriented differently with respect to the projection planes.   

• Section of prisms:
• Section plane parallel to VP
• Section plane parallel to HP
• Section plane perpendicular to HP and inclined to VP
• Section plane perpendicular to VP and inclined to HP

1. Section plane parallel to VP

To draw the projection of the solid  when sectioned by a plane whichis parallel to the VP, first the projections of the solid is drawn without section plane. (i.e. top view and front view according to the given conditions).  Then introduce the section plane in the top view. As the section plane is parallel to the VP, is seen as a line in top view.  Project the points of intersection of the section plane (line HT in the Top view  in figure 6)   to the respective points in the front view. E.g. point 4 , whichis the intersection of line HT with edge ef in the top view  is projected to point 4’ . This is obtained by the intersection of the vertical projector from point 4  and the edge represented by e’f’ in the front view. Siimilarly all other points like 3’, 2’ and 1’ is obtained.  Since the portiaon away from the VP (i.e. line XY) is removed, the shaded area represents the sectional  front view of the object.  Though the section are is to be drawn by hatched line, it is shown as colored green for convenience. The same would be followed.

Figure 6. Sectional view of a square prism sectioned by a plane parallel to VP.