AutoCAD Layers and Organization 3 — Questions and Answers
Question 1: Which command quickly isolates selected objects by turning off all other layers?
- LAYISO (Correct answer)
- LAYOFF
- LAYLOCK
- LAYMCH
Correct answer: LAYISO
LAYISO (Layer Isolate) turns off or locks all layers except those containing the selected objects.
Question 2: What does LAYUNISO do in AutoCAD?
- Unlocks all locked layers
- Restores the layer state that existed before the last LAYISO command (Correct answer)
- Turns on all layers that are currently off
- Merges all isolated layers into one
Correct answer: Restores the layer state that existed before the last LAYISO command
LAYUNISO reverses the LAYISO operation, restoring the previous layer visibility state.
Question 3: What is the purpose of the LAYMCH (Layer Match) command?
- Matches the color of one layer to another
- Changes selected objects to the layer of a destination object you pick (Correct answer)
- Synchronizes layer properties across xrefs
- Compares two layers and highlights differences
Correct answer: Changes selected objects to the layer of a destination object you pick
LAYMCH changes the layer of selected objects to match the layer of a target object you specify.
Question 4: Which command merges all objects from one or more layers onto a target layer, then deletes the source layers?
- LAYMRG (Correct answer)
- LAYDEL
- LAYMERGE
- LAYCOMBINE
Correct answer: LAYMRG
LAYMRG (Layer Merge) moves all objects from selected source layers to a target layer and purges the empty source layers.
Question 5: In the Layer Properties Manager, what does a sun icon next to a layer indicate?
- The layer is the current layer
- The layer is thawed (not frozen) (Correct answer)
- The layer has a plot style override
- The layer is set to print
Correct answer: The layer is thawed (not frozen)
The sun icon indicates the layer is thawed, meaning it is visible and included in regenerations.
Question 6: How can you make a layer non-printable while keeping it visible on screen?
- Lock the layer
- Freeze the layer
- Turn off the layer's Plot property (Correct answer)
- Set the layer color to white
Correct answer: Turn off the layer's Plot property
Disabling the Plot toggle in Layer Properties Manager keeps the layer visible in the drawing but excludes it from printed output.
Question 7: What happens to an object when its layer is deleted and the object is moved to Layer 0 during a PURGE or cleanup?
- The object inherits Layer 0's color, linetype, and lineweight (Correct answer)
- The object retains all its original properties
- The object is permanently deleted along with its layer
- The object is moved to Defpoints layer instead
Correct answer: The object inherits Layer 0's color, linetype, and lineweight
Objects reassigned to Layer 0 inherit Layer 0's properties unless overridden by explicit object-level settings.
AutoCAD Layers and Organization 3
Which command quickly isolates selected objects by turning off all other layers?