Which term describes the circle and tick marks used to lay out standard bend angles?

• A. Protractor
• B. Goniometer
• C. Template
• D. Compass

Answer: (D)

The tool described is one that provides a circle as a reference and allows you to lay out repeatable, standard bend angles by marking off points around that circle. A compass does this best: you set a precise radius, swing a circle, and then use marks or steps around the circle to indicate the standard bend angles you need to lay out. This circle-based reference makes it ideal for generating consistent bend layouts across drawings. Protractor measures angles on an existing drawing but isn’t used to lay out bends itself; a goniometer is for measuring angles, not drafting bend locations; a template is a fixed guide for shapes but doesn’t create the circle-based layout that a compass provides.