Engineering Drawing
An oil refinery relies on which type of drafter to maintain and update the technical piping drawings used for the construction and maintenance of the facility.

Architectural
Civil
Electrical
Process piping

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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?

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

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