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 stretch 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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Engineering Drawing
How can the drafter prevent Auto-CAD from placing or stacking another center mark on a circle when adding a diameter dimension to it?

Explode the dimension and then erase the center mark
Use the trim tool to take away the stacked center mark
Use the Properties dialog box to turn off the center mark of the dimension
It can't be done

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