Engineering Drawing
These weld symbols have no arrow-side or other-side significance:

Flash and upset weld
Back or backing weld
Surface or groove weld
Projection or seam weld

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

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