Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt Lean Concepts and Waste 1

Question 1

Which of the seven wastes occurs when workers must walk long distances or reach awkwardly to perform their tasks?

Accepted Answer

Motion

Answer

Motion waste refers to unnecessary physical movement by people, such as excessive walking, bending, or reaching. Unlike Transportation (which involves moving materials), Motion focuses on the movement of workers themselves.

Question 2

In Lean terminology, what is 'Muda'?

Accepted Answer

Any activity that consumes resources without adding customer value

Answer

Muda is the Japanese word for waste and refers to any activity that uses resources but does not add value for the customer. Identifying and eliminating Muda is a core objective of Lean.

Question 3

Which waste type is represented by excessive raw materials, work-in-progress, or finished goods beyond immediate needs?

Accepted Answer

Inventory

Answer

Inventory waste involves holding more stock than is needed at any given time, whether raw materials, WIP, or finished goods. Excess inventory ties up capital and can hide other process problems.

Question 4

What is the purpose of a 'Value Stream Map' in Lean methodology?

Accepted Answer

To identify all value-added and non-value-added steps in a process

Answer

A Value Stream Map visually depicts every step in a process flow, distinguishing between value-added activities and waste. It helps teams identify where to focus improvement efforts.

Question 5

Which Lean concept focuses on stopping production immediately when a defect is detected to prevent passing it downstream?

Accepted Answer

Jidoka

Answer

Jidoka, sometimes called 'autonomation,' is the principle of building in the ability to detect abnormalities and stop the process automatically or manually to prevent defects from propagating to the next step.

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Practice Test

Lean Six Sigma Yellow Belt Certification Lean Six Sigma Yellow Belt Lean Concepts and Waste 1