Which 3D CAD function could be used to create a wire paper clip?

Which 3D CAD function could be used to create a wire paper clip?

• A. Revolve
• B. Fillet
• C. Spline
• D. Inscribe

Answer: (C)

Creating a freeform curved path is essential for modeling a wire. In 3D CAD, a spline is a flexible curve defined by control points that you can place to shape smooth bends and loops, which matches the winding path of a paper clip. After drawing the spline, you’d typically give the wire thickness by sweeping a small circular cross-section along that curve, producing the slender wire shape. Revolve would generate a symmetric solid around an axis, not the irregular curved path of a wire. Fillet rounds existing edges rather than creating the curved guide path from scratch, and Inscribe is a 2D operation not used to form a 3D curved wire. So the spline best fits shaping the wire’s continuous curved path.

Creating a freeform curved path is essential for modeling a wire. In 3D CAD, a spline is a flexible curve defined by control points that you can place to shape smooth bends and loops, which matches the winding path of a paper clip. After drawing the spline, you’d typically give the wire thickness by sweeping a small circular cross-section along that curve, producing the slender wire shape. Revolve would generate a symmetric solid around an axis, not the irregular curved path of a wire. Fillet rounds existing edges rather than creating the curved guide path from scratch, and Inscribe is a 2D operation not used to form a 3D curved wire. So the spline best fits shaping the wire’s continuous curved path.