Lean Six Sigma Black Belt Certification Advanced Lean and Enterprise 3

Question 1

In a lean enterprise, 'takt time' is calculated as:

Accepted Answer

Available production time divided by customer demand rate

Answer

Takt time = available production time ÷ customer demand, setting the required pace of production to meet demand without overproduction.

Question 2

Which of the following best describes 'mura' in the context of lean waste?

Accepted Answer

Unevenness or variability in production flow

Answer

Mura refers to unevenness or inconsistency in work flow, which leads to the other wastes (muda) and overburdening (muri).

Question 3

What is the role of a 'milk run' in lean supply chain management?

Accepted Answer

A scheduled route for collecting small lots from multiple suppliers

Answer

A milk run is a logistics method where a vehicle follows a fixed route to collect small, frequent shipments from multiple suppliers, reducing inventory and improving flow.

Question 4

In lean enterprise, which tool is used to balance workload evenly across operators to match takt time?

Accepted Answer

Operator balance chart (yamazumi)

Answer

An operator balance chart (yamazumi) visually compares each operator's cycle time against takt time to identify imbalances and redistribute work.

Question 5

What is 'heijunka' in lean production?

Accepted Answer

Production leveling to smooth volume and mix over time

Answer

Heijunka is production leveling, distributing production volume and product mix evenly over time to reduce mura (unevenness) and enable JIT supply.

Lean Six Sigma Black Belt Certification Practice Test

Lean Six Sigma Black Belt Certification Practice Test

Lean Six Sigma Black Belt Certification Advanced Lean and Enterprise 3