Final answer:
In technical drawings, solid round breaks and pipe or tubing breaks indicate that a section of an object has been removed to depict the object's continuity without drawing it at full length.
Step-by-step explanation:
When you see a solid round break or a pipe, or tubing break in a technical drawing, it is used to indicate that a section of an object has been removed. These symbols are representation techniques used in engineering drawings to make long objects fit on the sheet without losing the representation of their overall shape and size. The breaks are used to show that the object continues in both directions and provide a way to showcase the important features or characteristics of an object without having to draw it in its entirety, which is especially helpful when dealing with long objects such as rods or pipes.