Engineering drawings are what we use to communicate designs to other entities. Whenever we produce a design for a specific product, we are often required to present an engineering drawing with it to communicate the design. Within an engineering drawing, we can communicate the shape of the design, the materials, the suppliers, and any other information we want to communicate.
Also, when engineers and technicians maintain a certain plant or a facility, they interact with engineering drawings in their day-to-day jobs. This is to identify what the machine is comprised of, how to maintain it, and the materials required for that. A couple of examples of engineering drawings are as follows. The following drawing is of a simple part. Note that the drawing only communicates the shape and dimensions of the part:
The following drawing is of a more complex...