Unit 5 Understanding Prints 61 Copyright Goodheart-Willcox Co., Inc. May not be reproduced or posted to a publicly accessible website. Half Section Half sections are primarily limited to symmetri- cal objects. The shape of one-half of the interior fea- tures and one-half of the exterior features of the object are shown in the half section, Figure 5-21. Cutting-plane lines are passed at right angles to each other. One-quarter of the object is “removed” and a half section view is exposed. Revolved Section Revolved sections rotate or turn the cut section 90°. They are primarily used to show the shape of such things as spokes, ribs, and stock metal shapes, Figure 5-22. Removed Section A removed section is used when it is not possible to show the sectional views on one of the principal views, Figure 5-23. The section is moved to a new location on the print, allowing it to be enlarged for clarity. Offset Section The offset section is used when a single, straight cutting plane cannot show the needed infor- mation, Figure 5-24. In this case, the cutting-plane line is stepped or offset to pass through these fea- tures that lie in more than one plane. Figure 5-21. A half section shows the shape of one-half of the interior and exterior of the object. Figure 5-22. A revolved section helps show the shape of such things as spokes, ribs, and stock metal shapes.