Engineering Drawing
When creating an isometric drawing in Auto-CAD the drafter can utilize the Dynamic Input and Polar Coordinate system to place both vertical and horizontal lines. A line created from one point 3 inches at 180 degrees would be a ________ line.

Vertical
None of these
Horizontal
Inclined

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

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