Which layout is characterized by grouping operations by function, creating departmental specializations?

• A. Product layout
• B. Cellular layout
• C. Random layout
• D. Functional layout

Answer: (D)

Grouping operations by function creates a functional layout, where each department specializes in a particular type of work (for example, machining, finishing, or assembly). This arrangement concentrates similar skills and equipment, making supervision, training, and flexibility easier, which is especially helpful when a plant handles a wide variety of products or frequent design changes. Because work must flow through multiple departments to complete a product, you gain adaptability and smoother capacity planning, but you may encounter longer routing times and higher work-in-process as parts move from one function to another.

In contrast, a product layout would put equipment in the sequence required to manufacture a specific product, minimizing movement for that product but reducing flexibility. A cellular layout groups machines into cells that handle a family of parts with similar processing steps, balancing efficiency with some product variety. A random or unstructured layout isn’t a standard approach for organizing production flow.