AutoCAD AutoCAD 3 — Questions and Answers
Question 1: In AutoCAD, which OSNAP mode snaps to the midpoint of an arc or line?
- CENTER
- MIDPOINT (Correct answer)
- NEAREST
- QUADRANT
Correct answer: MIDPOINT
The MIDPOINT object snap locates the exact middle of any line, arc, or polyline segment.
Question 2: Which command converts a closed polyline or spline into a region?
- BOUNDARY
- REGION (Correct answer)
- PEDIT
- HATCH
Correct answer: REGION
The REGION command converts closed 2D objects such as polylines, circles, and ellipses into 2D region objects.
Question 3: What is the function of the PURGE command in AutoCAD?
- Clears the command history
- Removes unused named objects like blocks, layers, and styles (Correct answer)
- Deletes all objects from the drawing
- Resets all system variables to defaults
Correct answer: Removes unused named objects like blocks, layers, and styles
PURGE removes unused named objects — including blocks, layers, linetypes, text styles, and dimension styles — to reduce file size.
Question 4: In a layout (paper space), what command is used to create a new floating viewport?
- MVIEW (Correct answer)
- VPORTS
- VIEW
- VPCLIP
Correct answer: MVIEW
The MVIEW command creates new floating viewports in a layout tab so you can display model space content at different scales.
Question 5: Which AutoCAD command allows you to break an object at two specified points, removing the segment between them?
- TRIM
- BREAK (Correct answer)
- SPLIT
- DIVIDE
Correct answer: BREAK
The BREAK command removes a portion of an object between two selected points, effectively splitting or shortening it.
Question 6: What does the LTSCALE system variable affect?
- The scale of lineweights in plot previews
- The global scale factor for all linetypes in the drawing (Correct answer)
- The scale of text in dimension styles
- The linetype used for new objects
Correct answer: The global scale factor for all linetypes in the drawing
LTSCALE sets the global linetype scale factor, controlling how dashes and gaps appear for all non-continuous linetypes across the drawing.
Question 7: Which selection method in AutoCAD selects all objects that the selection fence line crosses?
- Window
- Crossing
- Fence (Correct answer)
- Lasso
Correct answer: Fence
The Fence selection method selects all objects that a multi-segment line passes through, regardless of whether objects are fully enclosed.
AutoCAD AutoCAD 3
In AutoCAD, which OSNAP mode snaps to the midpoint of an arc or line?