Researching materials and parts to increase productivity is the study of:

• A. Production flow
• B. Quality control
• C. Materials science
• D. Ergonomics

Answer: (A)

The main idea being tested is how the movement of materials and parts through a manufacturing process can be optimized to boost output. This is about production flow—the way items progress from one operation to the next, how they are scheduled, and how the layout and sequencing affect throughput. Improving flow reduces waiting times, balances workloads, and cuts bottlenecks, which directly increases productivity.

Quality control focuses on meeting specifications and reducing defects, not on how parts travel through the system. Materials science studies the properties and behavior of the materials themselves, not the process flow. Ergonomics looks at designing work to fit the operator and reduce fatigue, safety issues, and efficiency, rather than optimizing the overall movement of parts through production.