CPIM Lean Manufacturing and Just-In-Time (JIT) Principles 3

Question 1

When implementing lean in a supply chain context, which of the following best supports supplier JIT delivery?

Accepted Answer

Developing close supplier partnerships with frequent, smaller deliveries

Answer

JIT supplier relationships require close collaboration, frequent small deliveries, and high reliability — achieved through long-term partnerships rather than purely price-driven sourcing.

Question 2

In lean production, 'muri' refers to:

Accepted Answer

Overburden or unreasonable demands placed on workers or equipment

Answer

Muri means overburden — pushing workers or machines beyond their natural capacity, which causes breakdowns, fatigue, and defects.

Question 3

Which metric best measures the effectiveness of a lean transformation in reducing non-value-added time?

Accepted Answer

Process cycle efficiency (value-added time ÷ total lead time)

Answer

Process cycle efficiency directly measures the proportion of lead time that is value-adding; lean targets PCE above 25%, whereas typical batch environments run below 5%.

Question 4

A 'poka-yoke' device is designed to:

Accepted Answer

Physically prevent defects or make defects immediately obvious

Answer

Poka-yoke (mistake-proofing) uses physical or electronic mechanisms to either prevent errors from occurring or detect them immediately when they do occur.

Question 5

The concept of 'one-piece flow' in lean manufacturing is intended to:

Accepted Answer

Move individual units through each process step rather than batches

Answer

One-piece flow (continuous flow) moves a single unit at a time through each process step, minimizing work-in-process inventory and exposing quality problems immediately.

(CPIM) Certified in Planning and Inventory Management Practice Test

(CPIM) Certified in Planning and Inventory Management Practice Test

CPIM Lean Manufacturing and Just-In-Time (JIT) Principles 3