A standard electrical plug fits into an outlet in only one way because one of the two prongs is larger than the other.This ensures that people will insert the plug properly to create a grounded circuit.This is an example of:
A)Cause-and-effect analysis.
B)Kanban.
C)Poka-yoke.
D)A benefit of Pareto analysis.

Question

Quizplus · Accepted Answer

The mentioned example is of a poka-yoke, which is a quality control technique that helps prevent human errors by designing products in a way that makes it difficult for users to make mistakes. The larger prong on the electrical plug acts as a poka-yoke to prevent the user from inserting the plug the wrong way, which could result in an electrical shock.

A Standard Electrical Plug Fits into an Outlet in Only