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Lean Silver Certification study materials
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Lean Silver Certification practice questions

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Question 1Lean Fundamentals and Principles

In Lean thinking, which statement best captures what customer value means?

  1. Only what the customer is willing to pay for, defined by the customer's needs Correct answer.
  2. Whatever the current process is capable of delivering reliably
  3. Any feature the engineering team believes will impress buyers
  4. The output of every step that adds cost to the product

Explanation

Value is defined from the customer's perspective: it is what the customer needs and is willing to pay for. Anything else the process does is a candidate for waste elimination. Engineers or internal convenience cannot redefine value.

Question 2Lean Fundamentals and Principles

A team maps a process and finds a step that inspects incoming parts to catch supplier defects. In Lean terms, how is this inspection best classified?

  1. Necessary non-value-adding work until the supplier is improved Correct answer.
  2. A form of continuous improvement activity
  3. Value-adding work, because it protects the customer
  4. Pure waste that should be removed immediately regardless of risk

Explanation

Inspection adds no customer value but may be temporarily necessary given current supplier quality. Lean treats it as necessary non-value-added work to be reduced as the root cause is addressed, not as value or as instantly removable.

Question 3Lean Fundamentals and Principles

Which of the following is counted as one of the classic seven wastes in Lean?

  1. Level scheduling
  2. Standardization
  3. Visual management
  4. Overproduction Correct answer.

Explanation

Overproduction is one of the seven classic wastes and is often considered the worst because it hides other problems and consumes capacity. The other options are Lean techniques or goals, not wastes.

Question 4Lean Fundamentals and Principles

A work cell keeps large batches of partially finished units between two machines. Which waste does this inventory most directly represent?

  1. Defects
  2. Inventory Correct answer.
  3. Motion
  4. Overprocessing

Explanation

Inventory waste is any material or product held beyond what the next step needs, including work-in-process buffers between machines. It ties up cash, lengthens lead time, and hides quality and equipment problems.

Question 5Lean Fundamentals and Principles

What does the Lean principle of flow aim to achieve?

  1. Balancing output by building ahead of demand
  2. Keeping each department busy with large queues of work
  3. Moving product through value-adding steps with minimal waiting and interruption Correct answer.
  4. Maximizing the utilization of every individual machine

Explanation

Flow means product progresses continuously through value-adding steps with minimal waiting, batching, or interruption. It shortens lead time and exposes problems that buffers would otherwise hide. High local utilization and large queues work against flow.

Question 6Lean Fundamentals and Principles

A pull system is best described by which characteristic?

  1. Each process produces to a schedule pushed from the master plan
  2. Downstream processes signal upstream processes to replenish what was consumed Correct answer.
  3. Production is released whenever a machine becomes idle
  4. Upstream processes run at maximum rate to keep buffers full

Explanation

In a pull system, downstream consumption triggers replenishment upstream, typically through kanban signals. This limits work-in-process and prevents overproduction. Push scheduling and running to maximum rate are the opposite of pull.

Question 7Lean Fundamentals and Principles

What is the primary purpose of a kanban card in a pull system?

  1. To schedule preventive maintenance tasks
  2. To record the standard time for each operation
  3. To authorize replenishment of a specific quantity of material Correct answer.
  4. To document the root cause of a defect

Explanation

A kanban is a signal that authorizes upstream production or withdrawal of a defined quantity, keeping replenishment tied to actual consumption. It is a control signal, not a time standard, defect record, or maintenance schedule.

Question 8Lean Fundamentals and Principles

Which description matches the Lean concept of takt time?

  1. The fastest cycle time any machine in the plant can achieve
  2. The total time a unit spends waiting in queues
  3. Available production time divided by customer demand in that period Correct answer.
  4. The time required to change over a machine between products

Explanation

Takt time is the pace at which a product must be completed to meet customer demand, calculated as available time divided by demand. It sets the rhythm the process should be designed to match. It is not machine capability, queue time, or changeover time.

Question 9Lean Fundamentals and Principles

A line has 420 minutes of available time per shift and customer demand of 210 units per shift. What is the takt time?

  1. 2 minutes per unit Correct answer.
  2. 420 minutes per unit
  3. 0.5 minutes per unit
  4. 210 minutes per unit

Explanation

Takt time equals available time divided by demand: 420 minutes divided by 210 units equals 2 minutes per unit. The process must complete one unit every two minutes to satisfy demand within the shift.

Question 10Lean Fundamentals and Principles

A value stream map shows a process with 30 seconds of value-added time and a total lead time of 6 days. What does the ratio of these figures indicate?

  1. Most of the lead time is non-value-added waiting, so flow improvement is the priority Correct answer.
  2. Value-added time must be increased to match lead time
  3. Lead time cannot be reduced without adding equipment
  4. The process is well balanced and needs no improvement

Explanation

Comparing value-added time to total lead time reveals how much of the elapsed time is actual work versus waiting. A tiny fraction of value-added time signals large queues and delays that flow and pull improvements can attack.

Question 11Lean Fundamentals and Principles

In value stream mapping, what distinguishes current-state maps from future-state maps?

  1. Current-state maps show only value-added steps; future-state maps show waste
  2. Current-state maps document how the process works today; future-state maps describe the improved target flow Correct answer.
  3. Current-state maps use data boxes; future-state maps use only timelines
  4. Current-state maps are drawn by managers; future-state maps are drawn by operators

Explanation

The current-state map captures actual present conditions, including waste and information flow, as a baseline. The future-state map defines the improved design the team intends to implement, usually with a plan to close the gap.

Question 12Lean Fundamentals and Principles

Which set of elements makes up the foundation of standardized work?

  1. Takt time, work sequence, and standard in-process stock Correct answer.
  2. Machine capacity, batch size, and overtime
  3. Cost targets, budget, and headcount
  4. Supplier count, transport routes, and warehouse layout

Explanation

Standardized work is built on takt time, the work sequence in which the operator performs tasks, and the standard in-process stock needed to keep the cycle stable. These three elements make the standard repeatable and auditable.

Question 13Lean Fundamentals and Principles

An operator follows a documented work sequence but the standard has not been updated since a fixture change. What is the most appropriate Lean response?

  1. Let each operator choose the method that feels fastest
  2. Discard the standard because conditions changed
  3. Continue using the old standard until the next annual review
  4. Treat the standard as a living document and revise it to reflect the improved method Correct answer.

Explanation

Standardized work is the current best-known method and must be updated when the process changes, then used as the baseline for further improvement. A stale standard loses credibility and hides variation. Abandoning it or letting methods diverge reintroduces inconsistency.

Question 14Lean Fundamentals and Principles

What is the central goal of 5S?

  1. Creating and sustaining an organized, clean, and standardized workplace Correct answer.
  2. Increasing the speed of machines on the line
  3. Replacing visual controls with written procedures
  4. Reducing headcount in the work area

Explanation

5S (sort, set in order, shine, standardize, sustain) creates a workplace where needed items are organized and abnormalities are visible. It supports safety, quality, and waste reduction rather than headcount cuts or machine speed.

Question 15Lean Fundamentals and Principles

A team implements the first four S's but finds conditions reverting within weeks. Which element of 5S most directly addresses this?

  1. Sort
  2. Sustain Correct answer.
  3. Shine
  4. Set in order

Explanation

Sustain is the discipline of maintaining the gains through audits, ownership, and habit, and it is the element most often neglected. Without it, the earlier steps erode as conditions drift back.

Question 16Lean Fundamentals and Principles

Which statement describes the Lean view of muda, mura, and muri?

  1. They are three names for the same type of defect
  2. Muda is waste, mura is unevenness, and muri is overburden Correct answer.
  3. They are financial metrics used to evaluate projects
  4. They refer only to machine-related losses

Explanation

Lean distinguishes muda (waste), mura (unevenness or variation), and muri (overburden of people and equipment). Reducing variation and overburden prevents waste from being generated in the first place.

Question 17Lean Fundamentals and Principles

A supervisor pushes the line to run at maximum speed for two hours and then idles it for two hours to average the daily target. Which of the three Ms does this primarily create?

  1. Mura, because the uneven pace creates variation and associated waste Correct answer.
  2. None, because the daily average is met
  3. Muri only, because machines are unaffected by pace
  4. Muda only, because output equals the target

Explanation

Alternating between sprinting and idling creates unevenness (mura), which in turn generates inventory, waiting, and quality risk. Leveling the pace is the countermeasure. Meeting the daily average does not remove the variation and its side effects.

Question 18Lean Fundamentals and Principles

What is the purpose of a gemba walk?

  1. To conduct annual performance appraisals
  2. To review financial reports with senior management
  3. To observe actual work where it happens and understand real conditions Correct answer.
  4. To audit individual employees against their job descriptions

Explanation

Gemba means the real place where value is created, and a gemba walk is structured observation of actual work to see problems and conditions firsthand. It is a learning and problem-finding activity, not an inspection of people or a desk review.

Question 19Lean Fundamentals and Principles

A manager asks why a machine stopped five times rather than accepting the first explanation. Which Lean practice does this reflect?

  1. Heijunka level scheduling
  2. Andon cord pulling
  3. Five whys root cause analysis Correct answer.
  4. Poka-yoke error proofing

Explanation

Five whys is a technique of repeatedly asking why to move past symptoms toward a root cause. The manager's iterative questioning mirrors that disciplined inquiry. Poka-yoke, heijunka, and andon are different tools with different purposes.

Question 20Lean Fundamentals and Principles

What does poka-yoke aim to accomplish?

  1. Detect defects at final inspection before shipment
  2. Prevent errors from being made or from passing to the next step Correct answer.
  3. Motivate operators through performance incentives
  4. Reduce the number of suppliers in the supply chain

Explanation

Poka-yoke is error proofing: it designs the process so mistakes are prevented or immediately detected at the source. Detection at final inspection is late and costly by comparison. It is a technical countermeasure, not a motivational or sourcing one.

Question 21Lean Fundamentals and Principles

What is the primary role of an andon system on a production line?

  1. To schedule deliveries from suppliers
  2. To record each operator's attendance and break times
  3. To calculate the line's overall equipment effectiveness automatically
  4. To signal an abnormality so help arrives and the problem is addressed promptly Correct answer.

Explanation

Andon makes abnormal conditions visible and calls for support so problems are contained quickly, often stopping the line when needed. It is a visual control for response, not an OEE calculator, time clock, or delivery scheduler.

Question 22Lean Fundamentals and Principles

A changeover currently takes 90 minutes. Applying SMED logic, which approach is most consistent with the method?

  1. Separate internal setup tasks from external ones and convert as many internal tasks as possible to external Correct answer.
  2. Buy a second machine so changeovers are unnecessary
  3. Train operators to perform the changeover faster without altering the steps
  4. Run larger batches so changeovers happen less often

Explanation

SMED separates internal setup, which requires the machine to be stopped, from external setup, which can be done while running, then converts internal work to external and streamlines what remains. Simply hurrying the same steps or buying capacity does not remove the underlying time.

Question 23Lean Fundamentals and Principles

What does heijunka contribute to a Lean production system?

  1. It levels the volume and mix of production over time Correct answer.
  2. It eliminates the need for standard work
  3. It maximizes the size of each production batch
  4. It replaces pull signals with a central schedule

Explanation

Heijunka smooths production volume and product mix so the process experiences a steady pace rather than peaks and troughs. Leveling reduces mura and supports pull and standardized work. It does not enlarge batches or remove the need for standards.

Question 24Lean Fundamentals and Principles

A team claims a kaizen event succeeded because output rose 20 percent, but scrap also doubled and overtime increased. How should this be judged against Lean principles?

  1. A clear success, because output is the primary Lean measure
  2. A success, because overtime shows employee commitment
  3. Not a durable improvement, because gains achieved through added waste and cost are not sustainable Correct answer.
  4. Irrelevant, because kaizen events are not measured

Explanation

Lean improvement must be judged on value delivered to the customer without shifting cost into scrap, overtime, or inventory. Higher output paired with more defects and extra hours indicates the process was pushed rather than improved. Sustainable gains come from eliminating waste, not from adding it elsewhere.

Question 25Lean Fundamentals and Principles

Which statement best describes how kaizen differs from innovation in Lean thinking?

  1. Kaizen relies on small, continuous improvements by the people doing the work; innovation is typically a large, discontinuous change Correct answer.
  2. Kaizen requires capital investment; innovation requires none
  3. Kaizen applies only to service processes; innovation applies only to manufacturing
  4. Kaizen is performed only by external consultants; innovation is performed internally

Explanation

Kaizen emphasizes small, frequent improvements driven by the people closest to the work, accumulating over time. Innovation is a larger, often technology-driven leap. The two are complementary, and kaizen does not depend on consultants or on a single industry.

Question 26Lean Fundamentals and Principles

In Lean terminology, which pair correctly distinguishes value from waste?

  1. Value is measured by machine utilization; waste is measured by labor hours
  2. Value is any step the customer would pay for; waste consumes resources without adding that value Correct answer.
  3. Value is any step performed inside the factory; waste is work performed by suppliers
  4. Value is defined by the engineering department; waste is defined by the finance department

Explanation

Lean anchors value in the customer's perspective: an activity is valuable only if it changes the product or service in a way the customer is willing to pay for. Everything else that consumes time, space, or effort is a candidate for elimination. This customer-first definition is what makes waste identification objective rather than a matter of internal opinion.

Question 27Lean Fundamentals and Principles

A warehouse holds large finished-goods inventory so that planners feel secure about meeting shipment dates. In Lean terms, how is this inventory primarily characterized?

  1. A necessary asset that should be maximized to protect service level
  2. One of the classic wastes, because it hides problems and ties up cash Correct answer.
  3. A muda-free buffer that removes the need for flow improvement
  4. A form of standardized work that stabilizes the schedule

Explanation

Lean treats excess inventory as a waste: it consumes cash, space, and handling while covering up underlying problems such as unreliable processes and poor scheduling. The classic image is that lowering the water level exposes the rocks. Inventory may be temporarily needed, but it is not treated as an unqualified good.

Question 28Lean Fundamentals and Principles

Which statement captures the Lean principle of flow?

  1. Work should progress continuously through processes with minimal waiting between steps Correct answer.
  2. Material should be stored between every operation so no station ever starves
  3. Each process should operate independently at its own maximum rate
  4. Products should move in the largest possible batches to keep equipment busy

Explanation

Flow means the product or service moves through value-adding steps with as little waiting, batching, and interruption as possible. Continuous flow shortens lead time and makes problems visible quickly. Large buffers and independent maximum-rate operation work against that goal.

Question 29Lean Fundamentals and Principles

A plant manager says the team has 'implemented Lean' because it installed kanban cards and ran a 5S week. Which critique is most consistent with Lean fundamentals?

  1. Kanban and 5S belong to Six Sigma and should not be mixed with Lean
  2. Tools alone do not constitute Lean; the operating philosophy and daily management system must change as well Correct answer.
  3. 5S should always precede kanban, so the sequence invalidates the effort
  4. The tools are sufficient proof that the Lean transformation is complete

Explanation

Lean is a management system built on continuous improvement and respect for people, expressed through tools rather than defined by them. Installing tools without changing how problems are surfaced, decisions are made, and standards are maintained usually produces temporary gains. The critique is about depth of change, not tool selection.

Question 30Lean Fundamentals and Principles

A process step inspects every unit a second time because the upstream operation is known to be unreliable. Using the classic waste categories, which waste does this inspection most directly represent?

  1. Transportation
  2. Motion
  3. Defects, because rework and inspection stem from errors already made Correct answer.
  4. Overproduction

Explanation

Inspection that exists only because errors are expected is a symptom of the defects waste; the effort adds no value and would disappear if the process were capable. Lean responds by finding and eliminating the cause of the errors rather than accepting inspection as normal. Overproduction, transportation, and motion describe different mechanisms.

Question 31Lean Fundamentals and Principles

A team maps a process and finds that a document waits in an inbox for approval before moving on. Under the waste categories, which classification fits best and why?

  1. Motion, because the approver reaches for the document
  2. Waiting, because the document sits idle and adds no value during that time Correct answer.
  3. Overprocessing, because approval requires too many signatures
  4. Inventory, because paper is a physical material

Explanation

Waiting is time in which a product, service item, or person is idle between steps. A document queued for approval is a service-sector example of exactly that. Overprocessing would describe unnecessary steps within the approval itself, not the idle time before it.

Question 32Lean Fundamentals and Principles

Which of the following best describes the Lean principle of 'pull' as it relates to the broader production system?

  1. Upstream processes schedule production based on a long-range forecast
  2. Each department builds to its own capacity plan and pushes output forward
  3. Downstream processes signal upstream processes to replenish only what has been consumed Correct answer.
  4. Finished goods are produced in large campaigns to reduce changeover frequency

Explanation

Pull links each step to actual downstream consumption, so replenishment is triggered by real demand rather than forecast. This limits inventory and exposes problems quickly. Forecast-driven and capacity-driven building are push behaviors.

Question 33Lean Fundamentals and Principles

A work cell has 400 minutes of available time per shift and must satisfy demand of 800 units per shift. The team is considering running at a faster rate than the resulting pace. What does Lean fundamentals suggest about that choice?

  1. Running faster than the pace creates overproduction and should be avoided Correct answer.
  2. Running faster than the pace is encouraged because surplus output builds a safety cushion
  3. Running faster is irrelevant because pace is set by machine capability
  4. Running faster is required to compensate for breaks later in the shift

Explanation

The pace derived from available time divided by demand (here 0.5 minutes per unit) represents what the customer actually requires. Producing faster than that rate generates surplus inventory, which is overproduction and the source of other wastes. Lean aims to match pace to demand and use freed capacity for improvement rather than for extra output.

Question 34Lean Fundamentals and Principles

A leader wants to understand why a process performs the way it does and goes to the actual place where work happens to observe and ask questions. Which Lean practice is this?

  1. Gemba Correct answer.
  2. Heijunka
  3. Hoshin planning
  4. Jidoka

Explanation

Gemba refers to the real place where value is created, and going there to observe directly is a core Lean habit. It counters reliance on reports and secondhand descriptions. Heijunka, jidoka, and hoshin describe leveling, built-in quality, and policy deployment respectively.

Question 35Lean Fundamentals and Principles

A machine repeatedly produces a slightly out-of-spec part. Rather than relying on an operator to notice and remove it later, the process is changed so the fixture physically cannot accept a misaligned part. Which Lean principle does this most directly embody?

  1. Jidoka, because quality is built into the process rather than inspected in afterward Correct answer.
  2. Heijunka, because production is leveled
  3. Poka-yoke only, because the fixture prevents errors
  4. Muda reduction only, because the inspection step is removed

Explanation

Jidoka is the broad principle of building quality into the process so abnormalities are prevented or detected and stopped at the source. A mistake-proofing fixture is one mechanism used to achieve jidoka, so the principle being embodied is broader than the tool itself. Inspection removal is a consequence, not the governing principle.

Question 36Lean Fundamentals and Principles

A supervisor notices that a workstation's output varies widely from hour to hour even though average demand is stable. Which Lean concept most directly addresses this variation?

  1. Muri, because variation always overloads people
  2. Hoshin, because strategy deployment smooths hourly output
  3. Mura, because unevenness in workload is a distinct source of waste Correct answer.
  4. Muda, because any variation is simply a type of defect

Explanation

Lean distinguishes muda (waste), mura (unevenness), and muri (overburden). Hour-to-hour swings in output with stable average demand are the signature of mura, which leveling and standard work are designed to reduce. Treating all variation as defects or overburden mislabels the mechanism.

Question 37Lean Fundamentals and Principles

A team is told to reduce batch size on a machining line. Which combination of effects is most consistent with Lean fundamentals?

  1. Inventory rises as a buffer against the more frequent setups
  2. Defect detection is delayed because fewer units are inspected per batch
  3. Lead time falls and problems surface sooner, while changeover frequency rises and must be addressed Correct answer.
  4. Lead time rises but machine utilization improves permanently with no tradeoff

Explanation

Smaller batches shorten the time a unit spends waiting, so lead time drops and quality problems appear earlier and in smaller increments. The cost is more frequent changeovers, which is why setup reduction is a standard companion effort. Lean accepts that tradeoff and then attacks setup time rather than reverting to large batches.

Question 38Lean Fundamentals and Principles

A production line is designed so that any operator can stop the line when a defect or abnormality is detected, and the problem is addressed before production resumes. Which Lean concept does this design most directly reflect?

  1. Takt time, because stopping aligns output with demand
  2. Kanban, because stopping signals upstream replenishment
  3. Jidoka, because the process stops to prevent passing on defects Correct answer.
  4. Standardized work, because stopping is written into the standard

Explanation

The authority to stop the line on abnormality is a hallmark of jidoka: quality is protected at the source rather than by downstream inspection. Andon systems often support this by signaling the problem. Kanban, standardized work, and takt time serve different purposes.

Question 39Lean Fundamentals and Principles

A value stream contains a step where parts are deburred by hand, then inspected, then deburred again by a second operator. Which waste category does the second deburring most clearly represent?

  1. Waiting, because the part sits between operators
  2. Overproduction, because more parts are made than demanded
  3. Overprocessing, because the same work is performed more than necessary Correct answer.
  4. Transportation, because the part moves between stations

Explanation

Overprocessing is doing more work than the customer requires, including redundant operations and unnecessary steps. A second deburring of the same feature adds no value and can often be eliminated by fixing the first operation. The other categories describe idle time, movement, and excess output, none of which is the core issue here.

Question 40Lean Fundamentals and Principles

A leader argues that because all seven wastes cannot be eliminated at once, the team should focus only on the largest one and ignore the rest until later. Which response best reflects Lean fundamentals?

  1. Incorrect, because wastes interact and reducing one can shift or reveal others, so the system must be considered together Correct answer.
  2. Correct, because focusing on a single waste is the only practical approach
  3. Correct, because smaller wastes are not measurable and should be disregarded
  4. Incorrect, because Lean requires eliminating all wastes simultaneously before any improvement counts

Explanation

The wastes are connected: cutting inventory may expose waiting or defects, and speeding one step can create overproduction downstream. Lean improvement therefore considers the system and expects gains in one area to reveal problems elsewhere. It does not require perfection before progress, nor does it justify ignoring interactions.

Question 41Value Stream Mapping and Analysis

In a value stream map, what does the timeline ladder along the bottom of the map primarily display?

  1. The inventory dollar value at each supermarket
  2. The sequence of kaizen bursts planned for the future state
  3. The staffing levels assigned to each process box
  4. Value-added and non-value-added time for each process step and the total lead time Correct answer.

Explanation

The timeline ladder separates value-added processing time from waiting and inventory time between steps, and its sum yields total lead time versus total process time. This ratio underpins the lean focus on reducing the non-value-added portion of lead time.

Question 42Value Stream Mapping and Analysis

Which item is a standard data box entry recorded beneath a process box on a value stream map?

  1. Supplier payment terms
  2. Total plant square footage
  3. Cycle time and changeover time for that process Correct answer.
  4. Customer takt time for the whole stream

Explanation

Process-level metrics such as cycle time, changeover time, uptime, and batch size belong in the data box attached to each process. Takt time is a demand-driven figure for the whole stream, not a per-process attribute.

Question 43Value Stream Mapping and Analysis

A value stream map shows a process with 30 seconds cycle time and 20 seconds changeover, running two shifts. Customer demand is 900 units per shift over 27,000 available seconds. What is takt time?

  1. 30 seconds Correct answer.
  2. 27 seconds
  3. 36 seconds
  4. 20 seconds

Explanation

Takt time equals available time divided by customer demand, so 27,000 divided by 900 gives 30 seconds per unit. Comparing takt time with cycle time reveals whether the process can meet demand.

Question 44Value Stream Mapping and Analysis

What is the purpose of drawing a future-state value stream map?

  1. To replace standard work instructions on the shop floor
  2. To satisfy customer reporting requirements for lead time
  3. To design a lean flow with a target condition and an implementation plan Correct answer.
  4. To document the current state precisely for audit records

Explanation

The future state expresses a designed target condition with improved flow, pull, and leveling, and it drives a loop of implementation actions. The current-state map is the diagnostic baseline, not the end goal.

Question 45Value Stream Mapping and Analysis

Which lean concept does a supermarket pull system between two processes most directly represent?

  1. Controlled inventory that triggers replenishment downstream Correct answer.
  2. Level scheduling of customer demand
  3. Push scheduling from a central MRP system
  4. Continuous one-piece flow with no buffers

Explanation

A supermarket holds a controlled buffer of standard inventory that downstream processes withdraw from, and withdrawal signals replenishment upstream. It is a pull mechanism, distinct from central push scheduling and from pure one-piece flow.

Question 46Value Stream Mapping and Analysis

A map shows inventory of 1,200 units between two processes, with average daily demand of 400 units. How many days of inventory does this represent?

  1. 0.33 days
  2. 3 days Correct answer.
  3. 4 days
  4. 1.2 days

Explanation

Days of inventory equals inventory quantity divided by daily demand, so 1,200 divided by 400 equals 3 days. This converts a physical count into a lead-time delay for the timeline ladder.

Question 47Value Stream Mapping and Analysis

What does the pacemaker process designate in a value stream map?

  1. The process with the highest scrap rate
  2. The process scheduled by the customer and used to pace the rest of the flow Correct answer.
  3. The process with the longest cycle time in the stream
  4. The final inspection station before shipping

Explanation

The pacemaker is the point where production is scheduled, and it sets the rhythm for upstream pull and downstream flow. Scheduling at the pacemaker rather than at every process simplifies control and supports leveling.

Question 48Value Stream Mapping and Analysis

Which symbol convention is used on a value stream map to represent a kanban post or kanban withdrawal?

  1. A striped arrow indicating information flow
  2. A triangle with an exclamation mark
  3. A truck icon on the timeline ladder
  4. A small kanban icon on the material flow arrow Correct answer.

Explanation

Kanban control is shown by a kanban icon attached to the material flow arrow between processes, indicating withdrawal and replenishment signals. Information flow is drawn separately with straight or electronic arrows.

Question 49Value Stream Mapping and Analysis

A process has 45 seconds of cycle time while takt time is 30 seconds. What does this comparison most directly indicate?

  1. Changeover time is the primary constraint
  2. Inventory will naturally disappear over time
  3. The process is well balanced and should be left unchanged
  4. The process is over capacity and cannot meet demand without improvement Correct answer.

Explanation

When cycle time exceeds takt time, the process cannot produce at the rate customers demand and becomes a constraint. The gap signals the need for kaizen such as cycle time reduction, added capacity, or flow redesign.

Question 50Value Stream Mapping and Analysis

What is the primary role of the current-state value stream map in a mapping engagement?

  1. To serve as the permanent operating standard after improvements
  2. To forecast future demand for capacity planning
  3. To replace the process failure mode analysis
  4. To establish a baseline that exposes waste and prioritizes improvement opportunities Correct answer.

Explanation

The current-state map captures how the stream actually operates today, making waste and delay visible so improvement priorities can be set. It is a diagnostic baseline that leads into future-state design, not a permanent standard.