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WorksheetsLean Six Sigma Yellow Belt Quiz
Total questions: 40
Worksheet time: 20mins
What is the primary objective of Lean methodology?
Cutting costs
Removing waste without sacrificing quality
Maximising output
Minimising employee workload
The Toyota Production System (TPS), which inspired Lean, is focused on which key concept?
Reducing variation
Mass production
Eliminating waste
Increasing profits
Six Sigma aims to improve processes by reducing which of the following?
Employee workload
Variation and defects
Production time
Customer interaction
Which statistical measure is used in Six Sigma to indicate process quality?
Control limits
Process variance
Mean and median
Defects per million opportunities (DPMO)
Which of the following is a tool commonly used in the Define phase of DMAIC?
Control charts
SIPOC
Regression analysis
Poka-Yoke
In Lean, what is considered 'waste'?
Any step that does not add value to the customer
Employee break times
Excessively fast production
Errors in accounting
What does SIPOC stand for?
Suppliers, Inputs, Processes, Outputs, Customers
Standard, Inspection, Process, Output, Control
Strategy, Input, Product, Operations, Compliance
Systems, Information, Process, Outputs, Clients
What does the term 'Kaizen' refer to in Lean?
Reducing variation
Continuous improvement through small, incremental changes
Minimising cost
Focusing on customer needs
Which of the following is NOT one of the 5S principles?
Sort
Standardise
Sustain
Simplify
What is the main purpose of the DMAIC methodology?
To create new products
To improve existing processes
To forecast market trends
To reduce employee turnover
The 'Voice of the Customer' (VOC) is primarily used to:
Determine product features
Identify waste
Define customer needs and expectations
Set employee performance goals
What does the 'Control' phase in DMAIC focus on?
Implementing changes
Ensuring that improvements are sustained over time
Identifying potential causes
Gathering data for process analysis
What is Heijunka's primary focus in Lean manufacturing?
Reducing defects
Smoothing production flow
Increasing employee output
Reducing cost
Which of the following tools is used in the 'Improve' phase of DMAIC?
Fishbone diagram
Root Cause Analysis
Failure Mode and Effects Analysis (FMEA)
Control charts
What is 'Poka-Yoke' in Lean Six Sigma?
A method for mistake-proofing processes
A tool for value stream mapping
A process for reducing variation
A framework for customer feedback
Which type of waste does Lean identify when products are made faster than required by customer demand?
Motion
Overproduction
Waiting
Defects
In Six Sigma, the term 'Sigma' refers to which of the following?
Process speed
Employee efficiency
Inventory levels
Statistical measurement of process variability
What does 'Jidoka' mean in Lean manufacturing?
Automation with a human touch
Continuous flow
Quick changeover
Process mapping
Which of the following is a tool for analysing the root causes of a problem?
Histogram
Kanban
5 Whys
Takt time
What does the 'Measure' phase in DMAIC focus on?
Defining customer expectations
Collecting data on current processes
Implementing improvements
Reducing defects
Which Lean tool visually maps out the flow of materials and information required to bring a product to the customer?
Fishbone diagram
Value Stream Map
Spaghetti diagram
SIPOC
A Six Sigma process aims to reduce defects to how many per million opportunities?
1000
500
3.4
50
In Lean, what does 'Takt time' refer to?
The rate at which a product must be produced to meet customer demand
The time taken to train employees
The overall time from start to finish of production
Time taken for machine setup
What is the main purpose of Statistical Process Control (SPC)?
To visualise process steps
To ensure processes remain within acceptable limits
To eliminate waste
To streamline product development
What is considered an example of 'Non-Value Added' work in Lean?
Producing exactly what the customer ordered
Reducing defects
Meeting customer expectations
Any rework required due to defects
What is meant by 'Cycle Time' in Lean?
The time between customer orders
The total time a product is in inventory
The time required to complete one unit of work from start to finish
The time spent by employees on a task
In Lean, what is a 'Spaghetti diagram' used for?
Mapping out customer feedback
Visualising the physical movement in a process
Reducing product defects
Tracking inventory levels
What is the purpose of 'Kanban' in Lean?
A scheduling system that signals production based on demand
A method to reduce defects
A tool to analyse process variation
A diagram for mapping process flow
Which of the following is an example of a Six Sigma tool for measuring process capability?
Fishbone diagram
Pareto chart
Control limits
DMAIC
What is the main focus of the 'Improve' phase in DMAIC?
Identifying defects
Developing solutions to reduce or eliminate defects
Analysing customer feedback
Monitoring process efficiency
What is the main characteristic of Lean's 'Single-Piece Flow'?
Producing one piece at a time to avoid overproduction
Moving materials in large batches
Streamlining employee tasks
Automating all processes
In Six Sigma, which tool is often used to identify variation and defects in a process?
SIPOC
Spaghetti diagram
Control chart
Root cause analysis
What does a 'Pareto chart' help identify?
The most common causes of defects
Process cycle times
Lead times
Employee performance
The Lean concept of 'Pull Production' refers to:
Automating the production process
Scheduling regular production batches
Mass production in advance
Producing goods based on customer demand
In Lean, '5S' refers to which of the following?
A method for sorting and organising the workplace
A process improvement tool
A statistical analysis method
A process for reducing variation
Which tool is typically used in the Control phase to monitor process stability over time?
Fishbone diagram
Control chart
Value Stream Map
SIPOC
In Lean Six Sigma, what does the term 'Variation' refer to?
The difference in customer requirements
The fluctuation in process outputs
The change in employee performance
The difference in production costs
Which of the following describes a 'Single-Minute Exchange of Dies' (SMED)?
A technique for reducing setup times in manufacturing
A method for reducing process variation
A tool for analysing defects
A strategy for improving customer satisfaction
In Lean, what is the purpose of 'Visual Management'?
To improve communication and highlight abnormalities in real-time
To measure employee performance
To track inventory levels
To assess customer satisfaction
What is the primary goal of the 'Analyse' phase in DMAIC?
Gathering data on the process
Identifying the root causes of defects and process inefficiencies
Developing solutions for process improvement
Defining the project scope
