COM Process Management & Improvement 2

Question 1

A manufacturing plant notices its defect rate varies widely across shifts. Which Six Sigma tool best identifies the root causes of this variation?

Accepted Answer

Fishbone (Ishikawa) diagram

Answer

A fishbone diagram systematically maps potential causes (people, machines, methods, materials, environment, measurement) to identify root causes of variation.

Question 2

In a SIPOC diagram, what does the 'O' represent?

Accepted Answer

Outputs

Answer

SIPOC stands for Suppliers, Inputs, Process, Outputs, and Customers — 'O' represents the Outputs delivered by the process.

Question 3

A company reduces its order-to-ship cycle time from 10 days to 4 days. This improvement primarily targets which type of waste in lean thinking?

Accepted Answer

Waiting

Answer

Reducing cycle time directly attacks 'waiting' waste, one of the 8 lean wastes, by eliminating delays between process steps.

Question 4

Which statistical measure describes how consistently a process stays within its specification limits over time?

Accepted Answer

Process capability index (Cpk)

Answer

Cpk measures both the spread and centering of a process relative to its specification limits, indicating long-term capability.

Question 5

An operations manager implements daily 15-minute team standup meetings to surface process blockers quickly. This practice is most aligned with which methodology?

Accepted Answer

Agile/Scrum

Answer

Daily standups are a core Agile/Scrum ceremony designed to synchronize work, surface impediments, and drive rapid iteration.

(COM) Certified Operations Manager Practice Test

(COM) Certified Operations Manager Practice Test

COM Process Management & Improvement 2