RCA RCA Data Collection and Analysis

Question 1

Which type of data is most valuable to collect immediately after a failure event in RCA?

Accepted Answer

Perishable evidence such as physical conditions, witness accounts, and system logs

Answer

Archived historical reports from prior years

Answer

Employee performance reviews

Answer

Budget reports for the affected department

Question 2

In RCA data collection, what is the purpose of a 'timeline reconstruction'?

Accepted Answer

To establish the sequence of events leading up to a failure

Answer

To calculate overtime pay for investigators

Answer

To determine which shift schedule caused the problem

Answer

To predict when the next failure will occur

Question 3

What is a 'check sheet' used for in RCA data collection?

Accepted Answer

Systematically recording the frequency or occurrence of specific events or defects

Answer

Verifying that corrective actions are signed off by management

Answer

Tracking employee attendance during the investigation

Answer

Listing all possible causes identified in brainstorming

Question 4

Why is it important to distinguish between 'observation' and 'interpretation' when collecting RCA data?

Accepted Answer

Observations are objective facts; interpretations are inferences that may introduce bias

Answer

Interpretations are more accurate than observations

Answer

Regulations require separating them in RCA reports

Answer

Interpretations save time during data collection

Question 5

What is 'stratification' in the context of RCA data analysis?

Accepted Answer

Separating data into subgroups (e.g., by shift, machine, or operator) to reveal patterns

Answer

Ranking corrective actions by priority

Answer

Dividing the investigation budget across departments

Answer

Sorting employees by seniority level

Question 6

In RCA, what does 'witness interviewing' primarily aim to uncover?

Accepted Answer

First-hand accounts of events, conditions, and actions leading up to the failure

Answer

Who is financially responsible for the failure

Answer

Regulatory compliance violations

Answer

Employee satisfaction with the investigation process