Engineering Drawing
In oblique sketches, the most commonly used angles for receding lines are:

15 or 30 degrees
45 or 60 degrees
30 or 45 degrees
25 or 30 degrees

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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 Break 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 Tolerance tool to clean up the extension lines

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