TS Measurement Systems Analysis (MSA) 3

Question 1

Per AIAG MSA guidelines, what is the minimum acceptable Number of Distinct Categories (NDC) for a measurement system used in process control?

Accepted Answer

5

Answer

2

Answer

3

Answer

10

Question 2

A linearity study reveals that a measurement device's bias increases as measured values increase across its range. The most appropriate corrective action is to:

Accepted Answer

Recalibrate or repair the gauge to correct the systematic non-linearity

Answer

Increase the number of operators performing measurements

Answer

Reduce the measurement range of the gauge to avoid higher values

Answer

Increase the number of replicates per measurement point

Question 3

Cohen's Kappa statistic in an attribute gauge study is used to:

Accepted Answer

Measure the agreement between appraisers beyond what would be expected by chance

Answer

Calculate the total variation in a variable measurement system

Answer

Determine the bias of attribute gauges relative to reference standards

Answer

Estimate the false rejection rate in go/no-go inspection

Question 4

A nested (hierarchical) GR&R study design should be used instead of a crossed design when:

Accepted Answer

Parts are destroyed or significantly altered during measurement and cannot be re-measured by multiple appraisers

Answer

The measurement process is automated and does not require operators

Answer

Only one appraiser is available for the study

Answer

The gauge tolerance is wider than the part tolerance

Question 5

When a GR&R study shows that %GRR is greater than 30%, what is the recommended course of action?

Accepted Answer

Investigate root causes of measurement variation and improve or replace the measurement system

Answer

Accept the measurement system since variation above 30% is within normal operating limits

Answer

Increase the specification tolerance to accommodate the measurement system variation

Answer

Reduce the number of appraisers to decrease the reproducibility component

Question 6

How does inadequate gauge resolution affect GR&R study results?

Accepted Answer

Inadequate resolution can artificially inflate the repeatability component of GR&R

Answer

Resolution has no impact on GR&R results as long as the gauge is properly calibrated

Answer

Higher resolution always ensures a lower %GRR regardless of operator technique

Answer

Resolution only affects linearity studies, not GR&R calculations

Question 7

What is the primary goal of conducting an MSA study before implementing a process control plan?

Accepted Answer

To ensure the measurement system can detect meaningful process variation before using it for process control decisions

Answer

To satisfy regulatory requirements for equipment documentation and traceability

Answer

To train operators on how to use measurement equipment properly

Answer

To establish the preventive maintenance schedule for measurement devices