Engineering Drawing
These are special installations of stone or concrete marking the locations of points accurately determined by precise surveying:

Hatches
Pillars
Topographic marks
Monuments

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Engineering Drawing
Given a situation in which the drafter has crossed extension lines in a drawing what can be done to clean up the point of crossing?

Use the stretch tool to clean up the extension lines
Use the Tolerance tool to clean up the extension lines
Use the Modify tool to clean up the extension lines
Use the Break tool to clean up the extension lines

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