Final answer:
In an offset section of an engineering drawing, something is removed by omitting parts outside the cutting plane, which is shifted to include specific features of a component for clarity.
Step-by-step explanation:
In engineering drawing, an offset section is a means of showing the features of a component that are not aligned along a single plane. The process of removing something in an offset section generally involves omitting certain parts of the drawing to provide a clearer view of the intersecting features or irregular shapes within the object.
To remove a part in an offset section, the drafter would break the cutting plane and shift it to include the important features of the component. This cutting plane acts like a slice through the object, which then allows for a clear sectional view of the interior. Anything lying outside of this cutting plane is not included in the sectional view, effectively 'removing' it from that particular representation in the drawing.
For example, if an engineer is drawing a part with a complex interior but only one aspect of that interior is relevant for the section view, they would use an offset section to only 'cut through' and show that relevant aspect, thus removing the rest from the view.