MAN Exam 2 questions and answers
graded A+ already passed
Process Strategies - correct answer ✔✔objective of a process strategy is to build a production
process that meets customer requirements and product specifications within cost and other
managerial constraints
Which of the following are true about the difference between Cp and Cpk?
A. only one ensures the process mean is centered within the limits
B. Cp values have to be above 1 to indicate a capable process; Cpk values have to be above 2 in
order to indicate a capable process
C. both are identical
D. Cp values for a given process will always be greater than or equal to Cpk values
E. both A and D - correct answer ✔✔E. both A and D
When a sample measurement falls inside the control limits, it means that
A. each unit manufactured is good enough to sell
B. the process limits cannot be determined statistically
C. the process output exceeds the requirements
D. if there is no other pattern in the samples, the process is in control
E. the process output does not fulfill the requirements - correct answer ✔✔D. if there is no
other pattern in the samples, the process is in control
The causes of variation in statistical process control are - correct answer ✔✔
Natural variations
,A. affect almost every production process
B. are the many sources of variation that occur when a process is under control
C. when grouped, form a pattern, or distribution
D. are tolerated, within limits, when a process is under control
E. All of the above are true. - correct answer ✔✔E. All of the above are true.
Which of the following is false regarding control charts?
A. Values above the upper control limits always imply that the product's quality is exceeding
expectations.
B. Control charts are built so that new data can be quickly compared to past performance data.
C. Control charts graphically present data.
D. Control charts plot data over time.
E. None of the above is false. - correct answer ✔✔A. Values above the upper control limits
always imply that the product's quality is exceeding expectations.
Which of the following is true regarding the process capability index Cpk?
A. A Cpk index value of 1 is ideal, meaning all units meet specifications.
B. The larger the Cpk, the more units meet specifications.
C. The Cpk index can only be used when the process centerline is also the specification
centerline.
D. Positive values of the Cpk index are good; negative values are bad.
E. None of the above is true. - correct answer ✔✔B. σ must be less than one-third of the
difference between the specification and the process mean
If the Cpk index exceeds 1 - correct answer ✔✔
If a process has a process capability ratio of 2.0
,a. The process is twice as efficient as it was before the capacity was increased
b. The process is a Six Sigma process
c. The process capability index must also be 2.0
d. The process has an acceptable range of +- 3 standard deviations from the mean
e. All of the above statements are true of a process with a process capability ratio of 2.0 -
correct answer ✔✔b. The process is a Six Sigma process
Harley-Davidson - correct answer ✔✔Repetitive manufacturing works
Four basic strategies - correct answer ✔✔Process focus
Repetitive focus
Product focus
Mass customization
Process Focus - correct answer ✔✔(low volume, high variety, intermittent processes)
many inputs, output
-Facilities are organized around specific activities or processes
-General purpose equipment and skilled personnel
-High degree of product flexibility
-Typically high costs and low equipment utilization
-Product flows may vary considerably making planning and scheduling a challenge
Repetitive Focus - correct answer ✔✔(modular)
-Facilities often organized as assembly lines
, -Characterized by modules with parts and assemblies made previously
-Modules may be combined for many output options
-Less flexibility than process-focused facilities but more efficient
Product Focus - correct answer ✔✔(high-volume, low variety, continuous process)
-Facilities are organized by product
-High volume but low variety of products
-Long, continuous production runs enable efficient processes
-Typically high fixed cost but low variable cost
-Generally less skilled labor
Mass Customization - correct answer ✔✔(high-volume, high-variety)
-The rapid, low-cost production of goods and service to satisfy increasingly unique customer
desires
-Combines the flexibility of a process focus with the efficiency of a product focus
-Imaginative and fast product design
-Rapid process design
-Tightly controlled inventory management
-Tight schedules
-Responsive supply chain partners
Process Focus - correct answer ✔✔(low-volume, high-variety)
1. Small quantity and large variety of products are produced
graded A+ already passed
Process Strategies - correct answer ✔✔objective of a process strategy is to build a production
process that meets customer requirements and product specifications within cost and other
managerial constraints
Which of the following are true about the difference between Cp and Cpk?
A. only one ensures the process mean is centered within the limits
B. Cp values have to be above 1 to indicate a capable process; Cpk values have to be above 2 in
order to indicate a capable process
C. both are identical
D. Cp values for a given process will always be greater than or equal to Cpk values
E. both A and D - correct answer ✔✔E. both A and D
When a sample measurement falls inside the control limits, it means that
A. each unit manufactured is good enough to sell
B. the process limits cannot be determined statistically
C. the process output exceeds the requirements
D. if there is no other pattern in the samples, the process is in control
E. the process output does not fulfill the requirements - correct answer ✔✔D. if there is no
other pattern in the samples, the process is in control
The causes of variation in statistical process control are - correct answer ✔✔
Natural variations
,A. affect almost every production process
B. are the many sources of variation that occur when a process is under control
C. when grouped, form a pattern, or distribution
D. are tolerated, within limits, when a process is under control
E. All of the above are true. - correct answer ✔✔E. All of the above are true.
Which of the following is false regarding control charts?
A. Values above the upper control limits always imply that the product's quality is exceeding
expectations.
B. Control charts are built so that new data can be quickly compared to past performance data.
C. Control charts graphically present data.
D. Control charts plot data over time.
E. None of the above is false. - correct answer ✔✔A. Values above the upper control limits
always imply that the product's quality is exceeding expectations.
Which of the following is true regarding the process capability index Cpk?
A. A Cpk index value of 1 is ideal, meaning all units meet specifications.
B. The larger the Cpk, the more units meet specifications.
C. The Cpk index can only be used when the process centerline is also the specification
centerline.
D. Positive values of the Cpk index are good; negative values are bad.
E. None of the above is true. - correct answer ✔✔B. σ must be less than one-third of the
difference between the specification and the process mean
If the Cpk index exceeds 1 - correct answer ✔✔
If a process has a process capability ratio of 2.0
,a. The process is twice as efficient as it was before the capacity was increased
b. The process is a Six Sigma process
c. The process capability index must also be 2.0
d. The process has an acceptable range of +- 3 standard deviations from the mean
e. All of the above statements are true of a process with a process capability ratio of 2.0 -
correct answer ✔✔b. The process is a Six Sigma process
Harley-Davidson - correct answer ✔✔Repetitive manufacturing works
Four basic strategies - correct answer ✔✔Process focus
Repetitive focus
Product focus
Mass customization
Process Focus - correct answer ✔✔(low volume, high variety, intermittent processes)
many inputs, output
-Facilities are organized around specific activities or processes
-General purpose equipment and skilled personnel
-High degree of product flexibility
-Typically high costs and low equipment utilization
-Product flows may vary considerably making planning and scheduling a challenge
Repetitive Focus - correct answer ✔✔(modular)
-Facilities often organized as assembly lines
, -Characterized by modules with parts and assemblies made previously
-Modules may be combined for many output options
-Less flexibility than process-focused facilities but more efficient
Product Focus - correct answer ✔✔(high-volume, low variety, continuous process)
-Facilities are organized by product
-High volume but low variety of products
-Long, continuous production runs enable efficient processes
-Typically high fixed cost but low variable cost
-Generally less skilled labor
Mass Customization - correct answer ✔✔(high-volume, high-variety)
-The rapid, low-cost production of goods and service to satisfy increasingly unique customer
desires
-Combines the flexibility of a process focus with the efficiency of a product focus
-Imaginative and fast product design
-Rapid process design
-Tightly controlled inventory management
-Tight schedules
-Responsive supply chain partners
Process Focus - correct answer ✔✔(low-volume, high-variety)
1. Small quantity and large variety of products are produced
