CMS Process Engineering & Optimization 3

Question 1

Which lean concept focuses on producing only what is needed, when it is needed, and in the amount needed?

Accepted Answer

Just-In-Time (JIT)

Answer

Just-In-Time (JIT) manufacturing eliminates overproduction waste by aligning production output with actual demand.

Question 2

A control chart shows data points consistently drifting upward over 8 consecutive points. This pattern is called:

Accepted Answer

A run or trend signal

Answer

Eight consecutive points trending in one direction on a control chart signal a non-random (special cause) trend requiring investigation.

Question 3

What manufacturing layout arranges equipment in a U-shape to facilitate single-piece flow and flexible staffing?

Accepted Answer

U-shaped (cellular) layout

Answer

A U-shaped cellular layout enables operators to handle multiple machines, reducing WIP and supporting single-piece flow.

Question 4

In Six Sigma, what sigma level corresponds to approximately 3.4 defects per million opportunities (DPMO)?

Accepted Answer

6 Sigma

Answer

Six Sigma quality level allows no more than 3.4 DPMO, accounting for a 1.5-sigma long-term process shift.

Question 5

Which type of waste in the lean framework refers to unnecessary movement of materials between process steps?

Accepted Answer

Transportation waste

Answer

Transportation waste involves moving materials or products unnecessarily, adding time and cost without adding value.

(CMS) Certified Manufacturing Specialist Practice Test