LEAN GOLD EXAM PRACTICE QUESTIONS AND
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALE Q&A INSTANT DOWNLOAD PDF.
100 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Demonstrate mastery of core concepts
2 Lean Gold Exam Practice Questions And Correct Answers
3 Verified Answers
4 Plus Rationale Q&A Instant Download Pdf.
5 Foundations of Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus
Rationale Q&A Instant Download Pdf.
6 Applied Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationale
Q&A Instant Download Pdf.
7 Advanced Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationale
Q&A Instant Download Pdf.
8 Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationale Q&A Instant
Download Pdf. Review
Q1 DEMONSTRATE MASTERY OF CORE CONCEPTS
In the context of Lean, which statement best captures the fundamental distinction
between 'muda' and 'mura'?
A. Muda refers to waste from overburden, while mura refers to unevenness in workflow
B. Muda refers to non-value-adding activities, while mura refers to variability that leads to waste
CORRECT
C. Mura is a subset of muda that specifically involves waiting time
D. Muda is a financial metric, while mura is an operational metric
RATIONALE: Muda is the Japanese term for waste-any activity that consumes resources without
adding value. Mura is unevenness or variability in operations, which often creates muda. While
muri (overburden) is the third form, the distinction here is between waste and variability.
Page 1
,Q2 DEMONSTRATE MASTERY OF CORE CONCEPTS
A manufacturing cell has a cycle time of 45 seconds and operates 7.5 hours per
shift with a 30-minute planned break. The customer demand is 600 units per day
over one shift. What is the required takt time in seconds?
A. 42 seconds CORRECT
B. 45 seconds
C. 40 seconds
D. 38 seconds
RATIONALE: Available time per shift = 7.5 hours × 3600 seconds/hour = 27,000 seconds.
Subtract the 30-minute break (1,800 seconds) to get 25,200 seconds of available production
time. Takt time = 25, = 42 seconds. The cycle time of 45 seconds exceeds takt,
indicating the cell cannot meet demand.
Q3 DEMONSTRATE MASTERY OF CORE CONCEPTS
A process has a first-pass yield of 80% at Step 1, 90% at Step 2, and 85% at Step 3.
What is the rolled throughput yield (RTY) for the entire process?
A. 61.2% CORRECT
B. 85.0%
C. 88.3%
D. 71.4%
RATIONALE: RTY is the product of the individual first-pass yields: 0.80 × 0.90 × 0.85 = 0.612, or
61.2%. This reflects the probability of a unit passing through all steps without defect, which is
lower than the average yield.
Page 2
,Q4 DEMONSTRATE MASTERY OF CORE CONCEPTS
A hospital is implementing Lean to reduce patient wait times. Which tool is most
appropriate for visually displaying the sequence of steps and the time spent on
each step in the patient's journey from admission to discharge?
A. Pareto chart
B. Spaghetti diagram
C. Value stream map CORRECT
D. Ishikawa diagram
RATIONALE: A value stream map (VSM) is a Lean tool that maps the flow of materials and
information, including process steps, wait times, and cycle times, making it ideal for analyzing the
patient journey. A spaghetti diagram shows physical movement, Pareto charts prioritize issues,
and Ishikawa diagrams identify root causes-none capture the full sequence with time metrics as
effectively as a VSM.
Q5 DEMONSTRATE MASTERY OF CORE CONCEPTS
In a Kanban system with a single-card (withdrawal) approach, which condition
would necessitate an increase in the number of Kanban cards?
A. Reduction in demand variability
B. Decrease in lead time
C. Increase in container capacity
D. Increase in safety stock requirement CORRECT
RATIONALE: The number of Kanban cards is calculated using the formula: (Demand during lead
time + Safety stock) / Container capacity. An increase in safety stock raises the numerator, thus
requiring more cards. Lower variability, shorter lead times, or larger containers would reduce the
card count.
Page 3
, Q6 DEMONSTRATE MASTERY OF CORE CONCEPTS
A company implements a total productive maintenance (TPM) program. Which
metric best captures the combined effect of availability, performance, and quality
in a single number?
A. Mean time between failures (MTBF)
B. Overall equipment effectiveness (OEE) CORRECT
C. Mean time to repair (MTTR)
D. Cycle time
RATIONALE: OEE is calculated as Availability × Performance × Quality, providing a single metric
that reflects how effectively equipment is used. MTBF and MTTR are reliability and
maintainability metrics, while cycle time is a process time measure-none combine all three
factors.
Q7 DEMONSTRATE MASTERY OF CORE CONCEPTS
Which of the following best describes the primary purpose of 'Poka-Yoke' in Lean
manufacturing?
A. To detect and correct defects after they occur
B. To prevent errors from occurring or to make them immediately detectable CORRECT
C. To automate quality inspections
D. To reduce cycle time by eliminating non-value-added steps
RATIONALE: Poka-Yoke (mistake-proofing) aims to design processes or devices so that errors
are impossible or immediately obvious, preventing defects at the source. It is not about post-hoc
detection, automation, or cycle time reduction per se.
Page 4
CORRECT ANSWERS (VERIFIED ANSWERS) PLUS
RATIONALE Q&A INSTANT DOWNLOAD PDF.
100 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Demonstrate mastery of core concepts
2 Lean Gold Exam Practice Questions And Correct Answers
3 Verified Answers
4 Plus Rationale Q&A Instant Download Pdf.
5 Foundations of Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus
Rationale Q&A Instant Download Pdf.
6 Applied Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationale
Q&A Instant Download Pdf.
7 Advanced Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationale
Q&A Instant Download Pdf.
8 Lean Gold Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationale Q&A Instant
Download Pdf. Review
Q1 DEMONSTRATE MASTERY OF CORE CONCEPTS
In the context of Lean, which statement best captures the fundamental distinction
between 'muda' and 'mura'?
A. Muda refers to waste from overburden, while mura refers to unevenness in workflow
B. Muda refers to non-value-adding activities, while mura refers to variability that leads to waste
CORRECT
C. Mura is a subset of muda that specifically involves waiting time
D. Muda is a financial metric, while mura is an operational metric
RATIONALE: Muda is the Japanese term for waste-any activity that consumes resources without
adding value. Mura is unevenness or variability in operations, which often creates muda. While
muri (overburden) is the third form, the distinction here is between waste and variability.
Page 1
,Q2 DEMONSTRATE MASTERY OF CORE CONCEPTS
A manufacturing cell has a cycle time of 45 seconds and operates 7.5 hours per
shift with a 30-minute planned break. The customer demand is 600 units per day
over one shift. What is the required takt time in seconds?
A. 42 seconds CORRECT
B. 45 seconds
C. 40 seconds
D. 38 seconds
RATIONALE: Available time per shift = 7.5 hours × 3600 seconds/hour = 27,000 seconds.
Subtract the 30-minute break (1,800 seconds) to get 25,200 seconds of available production
time. Takt time = 25, = 42 seconds. The cycle time of 45 seconds exceeds takt,
indicating the cell cannot meet demand.
Q3 DEMONSTRATE MASTERY OF CORE CONCEPTS
A process has a first-pass yield of 80% at Step 1, 90% at Step 2, and 85% at Step 3.
What is the rolled throughput yield (RTY) for the entire process?
A. 61.2% CORRECT
B. 85.0%
C. 88.3%
D. 71.4%
RATIONALE: RTY is the product of the individual first-pass yields: 0.80 × 0.90 × 0.85 = 0.612, or
61.2%. This reflects the probability of a unit passing through all steps without defect, which is
lower than the average yield.
Page 2
,Q4 DEMONSTRATE MASTERY OF CORE CONCEPTS
A hospital is implementing Lean to reduce patient wait times. Which tool is most
appropriate for visually displaying the sequence of steps and the time spent on
each step in the patient's journey from admission to discharge?
A. Pareto chart
B. Spaghetti diagram
C. Value stream map CORRECT
D. Ishikawa diagram
RATIONALE: A value stream map (VSM) is a Lean tool that maps the flow of materials and
information, including process steps, wait times, and cycle times, making it ideal for analyzing the
patient journey. A spaghetti diagram shows physical movement, Pareto charts prioritize issues,
and Ishikawa diagrams identify root causes-none capture the full sequence with time metrics as
effectively as a VSM.
Q5 DEMONSTRATE MASTERY OF CORE CONCEPTS
In a Kanban system with a single-card (withdrawal) approach, which condition
would necessitate an increase in the number of Kanban cards?
A. Reduction in demand variability
B. Decrease in lead time
C. Increase in container capacity
D. Increase in safety stock requirement CORRECT
RATIONALE: The number of Kanban cards is calculated using the formula: (Demand during lead
time + Safety stock) / Container capacity. An increase in safety stock raises the numerator, thus
requiring more cards. Lower variability, shorter lead times, or larger containers would reduce the
card count.
Page 3
, Q6 DEMONSTRATE MASTERY OF CORE CONCEPTS
A company implements a total productive maintenance (TPM) program. Which
metric best captures the combined effect of availability, performance, and quality
in a single number?
A. Mean time between failures (MTBF)
B. Overall equipment effectiveness (OEE) CORRECT
C. Mean time to repair (MTTR)
D. Cycle time
RATIONALE: OEE is calculated as Availability × Performance × Quality, providing a single metric
that reflects how effectively equipment is used. MTBF and MTTR are reliability and
maintainability metrics, while cycle time is a process time measure-none combine all three
factors.
Q7 DEMONSTRATE MASTERY OF CORE CONCEPTS
Which of the following best describes the primary purpose of 'Poka-Yoke' in Lean
manufacturing?
A. To detect and correct defects after they occur
B. To prevent errors from occurring or to make them immediately detectable CORRECT
C. To automate quality inspections
D. To reduce cycle time by eliminating non-value-added steps
RATIONALE: Poka-Yoke (mistake-proofing) aims to design processes or devices so that errors
are impossible or immediately obvious, preventing defects at the source. It is not about post-hoc
detection, automation, or cycle time reduction per se.
Page 4
