Drawing Tools Flashcards

When would you use the BOUNDARY command instead of the REGION command in AutoCAD?

Answer: When you want to create a closed polyline from enclosed areas rather than a region object

BOUNDARY creates a closed polyline tracing an enclosed area, while REGION creates a mathematical 2D surface object suited for Boolean and mass property operations.

Which option in the CIRCLE command allows you to draw a circle tangent to two existing objects with a specified radius?

Answer: Ttr (Tangent, Tangent, Radius)

The Ttr option lets you select two tangent objects and specify the radius, and AutoCAD calculates the circle's center automatically.

In the context of the PLINE command, what does the 'Arc' option switch to?

Answer: Arc segment mode, where subsequent segments are drawn as arcs instead of straight lines

Typing A during PLINE activates arc segment mode; type L to switch back to line segment mode without exiting the command.

What is the function of the SKETCH command in AutoCAD?

Answer: Creates freehand lines by recording cursor movement as a series of line segments

SKETCH records freehand cursor movement as a series of short line segments or splines, useful for irregular organic shapes.

When you use OFFSET on a closed polyline rectangle, what happens to the corners of the offset result?

Answer: The corners are automatically mitered (extended to intersect)

AutoCAD automatically extends or trims the offset segments at corners to maintain a clean, closed shape with mitered corners.

What does the 'Undo' option within the PLINE command do differently from pressing Ctrl+Z?

Answer: Removes only the last polyline segment while keeping the command active

Typing U inside PLINE removes just the last segment and lets you continue drawing, while Ctrl+Z exits the command and undoes the last action.

Which AutoCAD tool creates a series of objects that maintain an associative link, updating automatically when the source object changes?

Answer: Associative Array (ARRAY command)

AutoCAD's associative ARRAY creates a pattern where all copies update automatically if the source object or array parameters are modified.