RCA RCA Tools and Techniques

Question 1

What does the '5 Whys' technique involve in Root Cause Analysis?

Accepted Answer

Asking 'why' repeatedly until the root cause is identified

Answer

Listing five possible causes without further investigation

Answer

Surveying five team members for their opinions

Answer

Conducting five separate investigations

Question 2

Which RCA tool uses a diagram shaped like a fish skeleton to organize causes?

Accepted Answer

Fishbone (Ishikawa) Diagram

Answer

Pareto Chart

Answer

Fault Tree Analysis

Answer

Scatter Plot

Question 3

What is a Fault Tree Analysis (FTA) primarily used for in RCA?

Accepted Answer

Mapping logical relationships between failures and their causes

Answer

Tracking corrective action deadlines

Answer

Documenting employee interviews

Answer

Creating process flow diagrams

Question 4

In RCA, what does a Pareto Chart help analysts identify?

Accepted Answer

The most frequently occurring causes using the 80/20 rule

Answer

The sequence of events leading to failure

Answer

The relationship between two variables

Answer

The time required to fix each defect

Question 5

Which tool in RCA is best suited for identifying correlations between two variables?

Accepted Answer

Scatter Diagram

Answer

Control Chart

Answer

Fishbone Diagram

Answer

Failure Mode and Effects Analysis (FMEA)

Question 6

What is the primary purpose of Failure Mode and Effects Analysis (FMEA) in RCA?

Accepted Answer

To proactively identify potential failure modes and their effects before they happen

Answer

To document past failures after they occur

Answer

To assign blame for process failures

Answer

To verify that corrective actions were completed