In the lean environment what does a poka yoke device prevent or prohibit?
A. Additional costs for hiring additional shifts
B. Employees from remaining idle between processes.
C. Incorrect execution of a process step.
D. Disagreement between employees.
Answer: C – In the lean environment a poka yoke device prevents or prohibits the incorrect execution of a process step. A poka yoke can be electrical, mechanical, procedural, visual, human or any other form that prevents incorrect execution the step. Poka yoke helps people and processes work right the first time by building in techniques that make it impossible to make mistakes. These techniques can drive defects out of products and processes and substantially improve quality and reliability. Poka-yoke can be used wherever something can go wrong or an error can be made.