LEAN PRACTITIONER CERTIFICATION EXAM PRACTICE
QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALE Q&A INSTANT DOWNLOAD PDF.
90 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Analyze and design value streams using lean metrics and flow principles
2 Apply pull systems and kanban calculations to optimize inventory and production control
3 Evaluate and implement lean tools such as SMED, TPM, and error-proofing in complex operational
contexts
4 Synthesize lean philosophy with organizational change and problem-solving methodologies
5 Lean Practitioner Certification Exam Practice Questions And Correct Answers
6 Verified Answers
7 Plus Rationale Q&A Instant Download Pdf.
8 Foundations of Lean Operations and Continuous Improvement
9 Applied Lean Operations and Continuous Improvement
10 Advanced Lean Operations and Continuous Improvement
11 Lean Operations and Continuous Improvement Review
Page 1
,Q1 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
A high-mix, low-volume manufacturer is converting from batch production to a
continuous flow cell. Which sequence of actions best aligns with lean
transformation principles?
A. Implement kanban, then reduce setup times, then create one-piece flow.
B. Create one-piece flow, then implement kanban, then reduce setup times.
C. Reduce setup times, then create one-piece flow, then implement kanban. CORRECT
D. Implement kanban, then create one-piece flow, then reduce setup times.
RATIONALE: Reducing setup times is a prerequisite to enable economical small batches and
one-piece flow. Only after flow is established can pull systems like kanban be effectively
introduced. Answer C reflects the correct sequence: SMED -> Flow -> Pull.
Q2 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
In a value stream map, the total value-added time is 5 minutes and the total lead
time is 10 days. What is the most significant insight this reveals?
A. The process is highly efficient with minimal waste.
B. There is a massive opportunity to reduce non-value-added time through flow improvement.
CORRECT
C. The takt time is 10 days, indicating overproduction.
D. The process cycle efficiency is 50%, which is typical and acceptable.
RATIONALE: The value-added ratio (5 min / 10 days) is extremely low, indicating that the vast
majority of lead time is waste. This signals a huge opportunity for lean improvements to
compress lead time by eliminating non-value-added activities. Options A, C, and D misinterpret
the metric.
Page 2
,Q3 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
A work cell has a daily demand of 480 units and operates 8 hours per day with a
30-minute planned lunch break and two 15-minute breaks. What is the takt time in
seconds?
A. 60 seconds
B. 55 seconds
C. 52.5 seconds CORRECT
D. 57.5 seconds
RATIONALE: Available time = 8 hours * 3600 - (30 + 30) * 60 = 28,800 - 3,600 = 25,200 seconds.
Takt time = 25, = 52.5 seconds. Option C is correct; other options miscompute available
time or demand.
Q4 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
In a kanban system, the container size is 50 units, demand per day is 200 units,
and lead time is 2 days. Safety stock is set at 20% of demand during lead time.
How many kanban cards are needed?
A. 8
B. 10 CORRECT
C. 12
D. 15
RATIONALE: Demand during lead time = 200 * 2 = 400 units. Safety stock = 20% of 400 = 80
units. Total inventory needed = 400 + 80 = 480 units. Number of kanban = = 9.6, round
up to 10. Option B is correct.
Page 3
, Q5 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
Which of the following best illustrates the principle of 'jidoka' in a manufacturing
process?
A. A machine automatically stops when a defect is detected, preventing further production of
nonconforming parts. CORRECT
B. Workers are empowered to stop the production line if they notice an abnormality, even if it
means halting output.
C. A quality control inspector conducts final inspection on 100% of finished products before
shipment.
D. Statistical process control charts are used to monitor process variation and trigger
adjustments when out of control.
RATIONALE: Jidoka (autonomation) is about building quality at the source by giving machines
and operators the ability to detect abnormalities and stop automatically. Option A is the most
direct embodiment. Option B describes 'stop the line' culture but is not the full jidoka principle; C
and D are traditional quality methods.
Q6 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
During a kaizen event, a team is tasked with reducing changeover time. They have
videotaped the current changeover and identified that 70% of the time is spent
with the machine stopped. What is the most effective next step to reduce overall
changeover time?
A. Convert as many internal activities to external activities as possible. CORRECT
B. Increase the number of workers performing the changeover to parallelize tasks.
C. Standardize the changeover procedure and train all workers.
D. Reduce the number of changeovers by increasing batch sizes.
RATIONALE: The SMED methodology prioritizes separating internal and external setup and
converting internal to external. This directly attacks the machine-stopped time, which is the most
significant waste. Options B and C are secondary; D may reduce changeover frequency but not
time and can harm flow.
Page 4
QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS)
PLUS RATIONALE Q&A INSTANT DOWNLOAD PDF.
90 QUESTIONS
TABLE OF CONTENTS
# TOPIC
1 Analyze and design value streams using lean metrics and flow principles
2 Apply pull systems and kanban calculations to optimize inventory and production control
3 Evaluate and implement lean tools such as SMED, TPM, and error-proofing in complex operational
contexts
4 Synthesize lean philosophy with organizational change and problem-solving methodologies
5 Lean Practitioner Certification Exam Practice Questions And Correct Answers
6 Verified Answers
7 Plus Rationale Q&A Instant Download Pdf.
8 Foundations of Lean Operations and Continuous Improvement
9 Applied Lean Operations and Continuous Improvement
10 Advanced Lean Operations and Continuous Improvement
11 Lean Operations and Continuous Improvement Review
Page 1
,Q1 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
A high-mix, low-volume manufacturer is converting from batch production to a
continuous flow cell. Which sequence of actions best aligns with lean
transformation principles?
A. Implement kanban, then reduce setup times, then create one-piece flow.
B. Create one-piece flow, then implement kanban, then reduce setup times.
C. Reduce setup times, then create one-piece flow, then implement kanban. CORRECT
D. Implement kanban, then create one-piece flow, then reduce setup times.
RATIONALE: Reducing setup times is a prerequisite to enable economical small batches and
one-piece flow. Only after flow is established can pull systems like kanban be effectively
introduced. Answer C reflects the correct sequence: SMED -> Flow -> Pull.
Q2 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
In a value stream map, the total value-added time is 5 minutes and the total lead
time is 10 days. What is the most significant insight this reveals?
A. The process is highly efficient with minimal waste.
B. There is a massive opportunity to reduce non-value-added time through flow improvement.
CORRECT
C. The takt time is 10 days, indicating overproduction.
D. The process cycle efficiency is 50%, which is typical and acceptable.
RATIONALE: The value-added ratio (5 min / 10 days) is extremely low, indicating that the vast
majority of lead time is waste. This signals a huge opportunity for lean improvements to
compress lead time by eliminating non-value-added activities. Options A, C, and D misinterpret
the metric.
Page 2
,Q3 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
A work cell has a daily demand of 480 units and operates 8 hours per day with a
30-minute planned lunch break and two 15-minute breaks. What is the takt time in
seconds?
A. 60 seconds
B. 55 seconds
C. 52.5 seconds CORRECT
D. 57.5 seconds
RATIONALE: Available time = 8 hours * 3600 - (30 + 30) * 60 = 28,800 - 3,600 = 25,200 seconds.
Takt time = 25, = 52.5 seconds. Option C is correct; other options miscompute available
time or demand.
Q4 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
In a kanban system, the container size is 50 units, demand per day is 200 units,
and lead time is 2 days. Safety stock is set at 20% of demand during lead time.
How many kanban cards are needed?
A. 8
B. 10 CORRECT
C. 12
D. 15
RATIONALE: Demand during lead time = 200 * 2 = 400 units. Safety stock = 20% of 400 = 80
units. Total inventory needed = 400 + 80 = 480 units. Number of kanban = = 9.6, round
up to 10. Option B is correct.
Page 3
, Q5 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
Which of the following best illustrates the principle of 'jidoka' in a manufacturing
process?
A. A machine automatically stops when a defect is detected, preventing further production of
nonconforming parts. CORRECT
B. Workers are empowered to stop the production line if they notice an abnormality, even if it
means halting output.
C. A quality control inspector conducts final inspection on 100% of finished products before
shipment.
D. Statistical process control charts are used to monitor process variation and trigger
adjustments when out of control.
RATIONALE: Jidoka (autonomation) is about building quality at the source by giving machines
and operators the ability to detect abnormalities and stop automatically. Option A is the most
direct embodiment. Option B describes 'stop the line' culture but is not the full jidoka principle; C
and D are traditional quality methods.
Q6 ANALYZE AND DESIGN VALUE STREAMS USING LEAN METRICS AND FLOW PRINCIPLES
During a kaizen event, a team is tasked with reducing changeover time. They have
videotaped the current changeover and identified that 70% of the time is spent
with the machine stopped. What is the most effective next step to reduce overall
changeover time?
A. Convert as many internal activities to external activities as possible. CORRECT
B. Increase the number of workers performing the changeover to parallelize tasks.
C. Standardize the changeover procedure and train all workers.
D. Reduce the number of changeovers by increasing batch sizes.
RATIONALE: The SMED methodology prioritizes separating internal and external setup and
converting internal to external. This directly attacks the machine-stopped time, which is the most
significant waste. Options B and C are secondary; D may reduce changeover frequency but not
time and can harm flow.
Page 4
