What is the line on a section view that indicates where an object will be cut?

The line on a section view that indicates where an object will be cut is known as the Cutting Plane Line. This line is crucial in technical drawings and is typically represented as a thick, dashed line or a solid line, depending on the specific standards used. It not only shows the location of the cut but also often includes arrows to indicate the direction from which the view is taken, allowing viewers to understand what part of the object will be shown in the sectional view.

In technical drawings, the Cutting Plane Line helps in visualizing internal features of an object that would otherwise be hidden in a standard view. It is essential for accurately representing the geometric details of complex components.

Other options do not serve the same function: dimensions refer to the measurements of an object, detail view is a magnified representation of a specific area to show finer details, and chamfer is a beveled edge treatment used on parts. Understanding these distinctions is key to interpreting technical drawings effectively.