Question

Identify from the following, the correct short command key(s) and their respective application(s) in AutoCAD^® software.

• A. AR: Creates multiple copies in rectangular, polar, or path pattern
• B. BRK: Breaks a block or polyline into individual objects
• C. CHA: Bevels the edges of two straight line segments
• D. SXL: Breaks a single object into parts

Hint:

AR = ARRAY (rectangular/polar/path copies), CHA = CHAMFER (bevels a corner). BREAK only splits/removes a section of one object, and SXL is not a real AutoCAD command.

Answer 1

The Correct Option is A, C

Step 1: Recall what each short command actually does in AutoCAD.
AutoCAD gives many commands a two or three letter keyboard shortcut so a user does not need to open a menu. Four shortcuts are listed here: AR, BRK, CHA and SXL.
\(AR\) is the shortcut for the ARRAY command. ARRAY copies a selected object many times in one of three patterns: a grid (rectangular array), a ring around a centre point (polar array), or spaced out along a path curve (path array).
\(BRK\) is the shortcut for the BREAK command. BREAK removes a section of an object between two picked points, or splits one object into two at a single point. It does not touch a block or turn a polyline into separate line segments.
\(CHA\) is the shortcut for the CHAMFER command. CHAMFER replaces the sharp corner where two straight lines meet with a single angled cut, effectively bevelling that corner.
\(SXL\) is not a real AutoCAD command shortcut at all, it does not exist in the software's command set.

Step 2: Match each statement to the real command behaviour.
Option (A) describes AR as creating multiple copies in a rectangular, polar or path pattern, which is exactly what the ARRAY command does, so (A) is correct.
Option (B) describes BRK as breaking a block or polyline into individual objects. That description actually belongs to the EXPLODE command (shortcut \(X\)), not BREAK, so (B) is wrong.
Option (C) describes CHA as bevelling the edges of two straight line segments, which is exactly the CHAMFER command's job, so (C) is correct.
Option (D) describes SXL as breaking a single object into parts. Since SXL is not an AutoCAD command at all, this statement cannot be correct, so (D) is wrong.

Final Answer:
Only options (A) and (C) describe real AutoCAD shortcuts correctly. \[ \boxed{(A), (C)} \]