Supply Chain Management Quality Control 2

Question 1

Which sampling plan standard is most commonly used in US supply chain acceptance sampling?

Accepted Answer

ANSI/ASQ Z1.4

Answer

ANSI/ASQ Z1.4 is the primary US standard for attribute acceptance sampling by lot.

Question 2

A supplier's process has a Cpk of 0.85. What does this indicate?

Accepted Answer

The process is not capable and likely producing defects

Answer

A Cpk below 1.0 indicates the process is not capable and is likely producing out-of-spec parts.

Question 3

In a control chart, what does a 'run of 8 consecutive points on one side of the centerline' indicate?

Accepted Answer

A special cause of variation

Answer

Eight consecutive points on one side of the centerline is a Western Electric rule violation signaling a special cause.

Question 4

What is the primary purpose of a Gauge R&R study in supply chain quality?

Accepted Answer

To assess measurement system variation vs. part variation

Answer

Gauge R&R quantifies how much of observed variation comes from the measurement system versus the actual parts.

Question 5

Which quality tool is used to stratify defects by category to identify the most significant causes?

Accepted Answer

Pareto chart

Answer

A Pareto chart ranks defect categories by frequency to highlight the vital few causes (80/20 rule).

Supply Chain Management Practice Test