$1.$ Describe the difference between visual display, visual control, and visual management and give examples on how you could use each$\mathrm{.}2.$ Describe the six types of safeguards and give examples of when you could use each$\mathrm{.}3.$ Explain seven of the common mistake proofing techniques and give examples of when you could use each$\mathrm{.}4.$ Describe each element in the PDCA cycle. Either tell about a time you participated in a PDCA process or propose what you could do using this process.