CLL Waste Identification & Process Improvement 3

Question 1

A Lean practitioner discovers that 40% of a team's daily effort is spent correcting errors found downstream. Which category of waste is most prominently driving total lead time?

Accepted Answer

Defects

Answer

Defects require rework or scrap, consuming resources and extending lead time without adding value to the customer.

Question 2

In lean process improvement, '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 rhythm at which products must be completed to meet demand.

Question 3

Which of the following is NOT one of the original 7 wastes (Muda) identified by Taiichi Ohno?

Accepted Answer

Non-Utilized Talent

Answer

Non-Utilized Talent was added later (making 8 wastes total); Ohno's original 7 did not include it.

Question 4

A process improvement team uses a spaghetti diagram during a gemba walk. What specific waste are they most likely trying to quantify?

Accepted Answer

Motion

Answer

A spaghetti diagram traces the physical movement paths of people or materials to measure and visualize motion waste.

Question 5

Which Lean concept refers to the practice of stopping production immediately when a defect is detected, preventing it from moving downstream?

Accepted Answer

Jidoka

Answer

Jidoka (autonomation) empowers workers or machines to stop the line the moment a defect occurs, building quality at the source.

(CLL) Certified Lean Leader Practice Test

(CLL) Certified Lean Leader Practice Test

CLL Waste Identification & Process Improvement 3