When using the OFFSET command on a polyline with arcs, AutoCAD may refuse the operation unless —

• The boundary is open

• The object has zero thickness

• The polyline is closed or joined properly

• The UCS is in 3D mode

Which command can recreate an accidentally erased block, even after other commands were executed afterwards?

• UNDO

• REDO

• OOPS

• REGEN

If Ortho mode is ON and Polar Tracking is also ON, the cursor movement will —

• Follow only the Ortho constraint

• Follow both Ortho and Polar alternately

• Snap only to Polar angles

• Be disabled until one is turned OFF

In AutoCAD, the command QLEADER is used to —

• Display quick dimension lines

• Attach annotations with arrow leaders

• Create continuous baseline dimensions

• Rotate a text to readable position

The command that measures angle between two non-parallel lines is —

• MEASURE

• DIMANGULAR

• QDIM

• PROPERTIES

“CHAMFER” creates an angled corner between two lines, whereas “FILLET” creates a rounded corner.

• True

• False

“LAYER” command controls the visibility of objects but cannot lock them for editing.”

• True

• False

Assertion (A): Using the SNAP command helps maintain accuracy in drawings by restricting cursor movement to grid points. Reason (R): SNAP ensures that cursor moves only in increments along polar alignment paths.

• Both A and R are true and R is the correct explanation of A

• Both A and R are true but R is not the correct explanation of A

• A is true but R is false

• A is false but R is true

The UCS in AutoCAD stands for ..........................

The command used to join two parallel lines by an arc of specific radius is called