Which time is defined as the time associated with a setup performed while the process or machine isn't running?

• A. Internal setup time
• B. External setup time
• C. Tool change time
• D. Time associated with setup performed while running

Answer: (A)

Internal setup time refers to the portion of setup work that's done while the machine is not running. This is the time you spend stopping production to changeover fixtures, swap tools, or reconfigure equipment. Since the question asks for the time associated with a setup performed while the process or machine isn’t running, this is the internal setup time. External setup time, in contrast, covers prep work that can be completed while the machine is still producing, such as preloading materials or getting ready parts during a run. Tool change time is a specific setup activity, but the defining distinction here is whether the machine is stopped during the setup.