Lean Six Sigma Green Belt Certification Measurement System Analysis and Gage R&R 2

Question 1

Reproducibility in Gage R&R is best described as:

Accepted Answer

Variation caused by different operators measuring the same parts with the same gage

Answer

Reproducibility captures operator-to-operator variation — it is the variation observed when different operators measure the same parts using the same gage.

Question 2

Linearity in the context of measurement system analysis means:

Accepted Answer

The bias of the measurement system is consistent across its full operating range

Answer

Linearity assesses whether the gage's bias remains constant across the full operating range — a non-linear gage has different bias at low versus high measurement values.

Question 3

What is the standard AIAG Gage R&R study design in terms of parts, operators, and replicates?

Accepted Answer

10 parts, 3 operators, 2 replicates

Answer

The AIAG standard calls for 10 parts, 3 operators, and 2 replicates for a total of 60 measurements, providing sufficient statistical power for the study.

Question 4

Which type of Gage R&R study design is used when parts are destroyed or consumed during measurement?

Accepted Answer

Nested Gage R&R

Answer

Nested Gage R&R is used for destructive testing, where each operator measures a unique set of parts rather than the same parts as the other operators.

Question 5

Stability (drift) in a measurement system refers to:

Accepted Answer

The change in the measurement system's bias over time when measuring the same reference part

Answer

Stability measures how the gage's bias changes over time; an unstable measurement system drifts, giving different average readings of the same reference part across time.

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 2