Understanding Process Variation Concepts

The video tutorial explains process variations, focusing on common and special causes. It introduces the fishbone diagram to identify six sources of variation: method, material, mother nature, measurement, machine, and manpower. Control charts are used to differentiate between common and special causes of variation. An example of body temperature illustrates these concepts. The video concludes with examples of common and special causes and encourages viewer engagement.

What is the primary goal when dealing with process variations?

• To ignore variability

• To reduce variability

• To maintain variability

• To increase variability

Which of the following is NOT a source of variation in the fishbone diagram?

• Material

• Method

• Money

• Manpower

What type of variation is always present and predictable?

• Internal cause of variation

• External cause of variation

• Common cause of variation

• Special cause of variation

In the context of process variations, what does a control chart help to identify?

• The number of workers needed

• The cost of production

• The limits of acceptable variation

• The average process time

What does a rise in body temperature due to a virus represent in terms of process variation?

• Normal process behavior

• Predictable variation

• Common cause of variation

• Special cause of variation

Which of the following is an example of a common cause of variation?

• Computer crash

• Normal wear and tear of tools

• Operator falls asleep

• Machine malfunction

What is a characteristic of special causes of variation?

• They are part of the normal process

• They are always present

• They are predictable

• They are caused by external factors

Which of the following can be controlled and removed from a process?

• None of the above

• Common causes of variation

• All types of variation

• Special causes of variation

What happens to a process when it is statistically stable?

• Only special causes of variation exist

• Only common causes of variation exist

• Both common and special causes of variation exist

• No variation exists

Which of the following is an example of a special cause of variation?

• Ambient temperature changes

• Poor maintenance of machines

• Operator absence

• Variability in settings