The cross section is revolved at the location where it is cut from. The revolved section shows the true shape of the cross section. The revolved section can be revolved directly on top of the object as shown in the top object in the figure above. The revolved section can be placed in a broken-out gap in the object as shown in the bottom object in the figure above. Removed Sections Removed sections are similar to revolved sections except that the section is placed elsewhere on the drawing.
Removed sections are helpful in complicated drawings where multiple sections are needed.
Most removed sections are labelled by placing capital letters at the end of the arrows of the cutting plane and labeling the respective sectioned view. Occasionally, removed sections can be placed on an extended center line as shown in the figure above. Hidden lines are NOT shown in the sectioned view. Visible lines are shown. Only the parts cut by the section plane are crosshatched.