Final answer:
A fixed-position layout is used when a very large product that is hard to move is produced.
Step-by-step explanation:
The layout that is used when a very large product that is hard to move is produced is called a fixed-position layout. In this type of layout, the product remains stationary while the materials, equipment, and workers are brought to it.
For example, in the construction industry, when building a large structure such as a skyscraper, a fixed-position layout is used. The building cannot be moved, so the materials and workers are brought to the site to assemble the structure.
This type of layout is also common in shipbuilding and aircraft manufacturing, where the size and complexity of the products make them difficult to move once assembly begins.