CM Lean Certification Course Questions and
Answers 100% Correct | Latest Update 2025
What is Variation? - ANSWER Variation refers to the fluctuations in the process
and results from the pre-determined standards
What has a corrupting effect on the reliable workflow of production operations? -
ANSWER Variation
What is another name for External Sources of Variation? - ANSWER Special
Cause Variation
What are some types of External Source or Special Cause Variations? -
ANSWER Environmental Conditions, Equipment Breakdown, Material Delivery
Interruptions, Delays in Submittals, Design Errors
What is another name for Internal Sources of Variation? - ANSWER Common
Cause Variation
What are some types of Internal Source or Common Cause Variations? -
ANSWER Individual Crew's Performance, Motivation Levels, Safe Work
Practices, Experience Level, Following Inconsistent processes
What must we do with variation in order to have consistent workflow on the job?
- ANSWER We must identify the sources of variation and take steps to
eliminate them
, What is one recommended step of eliminating or reducing variation? -
ANSWER Standardization of Work Processes
Important Concept: What is Work In Progress (WIP)? - ANSWER The amount of
work in the production process at a given time
Important Concept: What is Throughput? - ANSWER The amount of finished
material/product coming out of the production process in a given amount of time
and is the real measure of speed in the system
Important Concept: What is Cycle Time? - ANSWER The time it takes to
complete one finished unit of a process
A random or non-random difference in a production process that we can measure
and quantify is ____________. - ANSWER Variation
All _______________ _________________ exhibit variation. - ANSWER
Production Processes
_____________ _________ ______________ is an inherently random source of
variation that is property of the process or the procedure. - ANSWER Common
Course Variation
_____________ _________ ______________ is variation caused by factors
external to the defined process. - ANSWER Special Cause Variation
Answers 100% Correct | Latest Update 2025
What is Variation? - ANSWER Variation refers to the fluctuations in the process
and results from the pre-determined standards
What has a corrupting effect on the reliable workflow of production operations? -
ANSWER Variation
What is another name for External Sources of Variation? - ANSWER Special
Cause Variation
What are some types of External Source or Special Cause Variations? -
ANSWER Environmental Conditions, Equipment Breakdown, Material Delivery
Interruptions, Delays in Submittals, Design Errors
What is another name for Internal Sources of Variation? - ANSWER Common
Cause Variation
What are some types of Internal Source or Common Cause Variations? -
ANSWER Individual Crew's Performance, Motivation Levels, Safe Work
Practices, Experience Level, Following Inconsistent processes
What must we do with variation in order to have consistent workflow on the job?
- ANSWER We must identify the sources of variation and take steps to
eliminate them
, What is one recommended step of eliminating or reducing variation? -
ANSWER Standardization of Work Processes
Important Concept: What is Work In Progress (WIP)? - ANSWER The amount of
work in the production process at a given time
Important Concept: What is Throughput? - ANSWER The amount of finished
material/product coming out of the production process in a given amount of time
and is the real measure of speed in the system
Important Concept: What is Cycle Time? - ANSWER The time it takes to
complete one finished unit of a process
A random or non-random difference in a production process that we can measure
and quantify is ____________. - ANSWER Variation
All _______________ _________________ exhibit variation. - ANSWER
Production Processes
_____________ _________ ______________ is an inherently random source of
variation that is property of the process or the procedure. - ANSWER Common
Course Variation
_____________ _________ ______________ is variation caused by factors
external to the defined process. - ANSWER Special Cause Variation
