Lean Six Sigma Green Belt Certification Measurement System Analysis and Gage R&R

Question 1

What does MSA stand for in the context of Lean Six Sigma?

Accepted Answer

Measurement System Analysis

Answer

MSA stands for Measurement System Analysis, a structured study that evaluates the accuracy and precision of a measurement system.

Question 2

Which two components of variation does a Gage R&R study measure?

Accepted Answer

Repeatability and Reproducibility

Answer

Gage R&R measures Repeatability (variation from the same operator and gage on the same part) and Reproducibility (variation between different operators).

Question 3

Repeatability in a Gage R&R study is defined as the variation observed when:

Accepted Answer

The same operator measures the same part multiple times with the same gage

Answer

Repeatability captures equipment variation — it is the variation seen when one operator repeatedly measures the same part with the same gage.

Question 4

What is the primary purpose of conducting a Gage R&R study in the Measure phase?

Accepted Answer

To determine whether the measurement system can detect real process variation

Answer

Gage R&R determines whether measurement system error is small enough relative to process variation to allow valid data collection and analysis.

Question 5

What %Gage R&R value is generally considered acceptable according to AIAG guidelines?

Accepted Answer

Less than 10%

Answer

A measurement system with %Gage R&R below 10% is considered acceptable, meaning measurement error is a small fraction of total observed variation.

Lean Six Sigma Green Belt Certification Practice Test

Lean Six Sigma Green Belt Certification Practice Test

Lean Six Sigma Green Belt Certification Measurement System Analysis and Gage R&R