What constraint would you use to place a pin inside a hole?

What constraint would you use to place a pin inside a hole?

• A. Insert Constraint
• B. Quick Constraint
• C. Remove Constraint
• D. Fit Constraint

Answer: (A)

When you’re modeling the action of placing a pin into a hole, you want to represent the insertion operation in the assembly. An Insert constraint does exactly that: it positions the pin inside the hole, aligning their axes so the pin sits coaxially and stays in place along the insertion direction. This models the real-world fit where the pin is intended to be inside the hole, not merely touching or aligning in some other way, and it prevents unwanted movement along that axis. The other options don’t capture this specific relation. A Quick Constraint is just a fast, generic way to apply relations. A Remove Constraint would undo connections rather than create them. A Fit Constraint describes a general fitting relationship rather than the precise act of inserting one part into another.

When you’re modeling the action of placing a pin into a hole, you want to represent the insertion operation in the assembly. An Insert constraint does exactly that: it positions the pin inside the hole, aligning their axes so the pin sits coaxially and stays in place along the insertion direction. This models the real-world fit where the pin is intended to be inside the hole, not merely touching or aligning in some other way, and it prevents unwanted movement along that axis.

The other options don’t capture this specific relation. A Quick Constraint is just a fast, generic way to apply relations. A Remove Constraint would undo connections rather than create them. A Fit Constraint describes a general fitting relationship rather than the precise act of inserting one part into another.