Question 1

Natural variations:

Accepted Answer

A)  are variations that are to be identified and investigated. 
B)  are variations that can be traced to a specific cause. 
C)  are the same as assignable variations. 
D)  lead to occasional false findings that processes are out of control. 
E)  play no role in statistical process control. 
A)  are variations that are to be identified and investigated. 
B)  are variations that can be traced to a specific cause. 
C)  are the same as assignable variations. 
D)  lead to occasional false findings that processes are out of control. 
E)  play no role in statistical process control.

Question 2

If the Cpk index exceeds 1:

Accepted Answer

A)  the AQL must be smaller than the LTPD. 
B)  σ must be less than one-third of the absolute value of the difference between each specification limit and the process mean. 
C)  the x-bar chart must indicate that the process is in control. 
D)  the process is capable of Six Sigma quality. 
E)  the process is characterized as "not capable." 
A)  the AQL must be smaller than the LTPD. 
B)  σ must be less than one-third of the absolute value of the difference between each specification limit and the process mean. 
C)  the x-bar chart must indicate that the process is in control. 
D)  the process is capable of Six Sigma quality. 
E)  the process is characterized as "not capable."

Question 3

A Cpk index greater than ________ is a capable process, one that generates fewer than 2.7 defects per 1000 at the ±3σ level.

Accepted Answer

Question 4

An acceptance sampling plan's ability to discriminate between low quality lots and high quality lots is described by:

Accepted Answer

A)  a Gantt chart. 
B)  the Central Limit Theorem. 
C)  a process control chart. 
D)  an operating characteristic curve. 
E)  a range chart. 
A)  a Gantt chart. 
B)  the Central Limit Theorem. 
C)  a process control chart. 
D)  an operating characteristic curve. 
E)  a range chart.

Question 5

What is mass customization?

Accepted Answer

Mass customization is rapid, low-cost pr

Question 6

The use of information technology to monitor and control a physical process is known as:

Accepted Answer

A)  process control. 
B)  computer-aided design. 
C)  information numeric control. 
D)  numeric control. 
E)  IT oversight. 
A)  process control. 
B)  computer-aided design. 
C)  information numeric control. 
D)  numeric control. 
E)  IT oversight.

Question 7

Natural variations:

Accepted Answer

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 these. 
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 these.

Question 8

The process capability measures Cp and Cpk differ because:

Accepted Answer

A)  only one ensures the process mean is centered within the limits. 
B)  Cp values above 1 indicate a capable process, while Cpk values above 2 indicate a capable process. 
C)  They do not differ: 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 are correct. 
A)  only one ensures the process mean is centered within the limits. 
B)  Cp values above 1 indicate a capable process, while Cpk values above 2 indicate a capable process. 
C)  They do not differ: 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 are correct.

Question 9

A normal distribution is generally described by its two parameters: the mean and the range.

Accepted Answer

A) True 
 B)False

Question 10

A manufacturer uses statistical process control to control the quality of the firm's products. Samples of 50 of Product A are taken, and a defective/acceptable decision is made on each unit sampled. For Product B, the number of flaws per unit is counted. What type(s) of control charts should be used?

Accepted Answer

A)  p-charts for both A and B 
B)  p-chart for A, c-chart for B 
C)  c-charts for both A and B 
D)  p-chart for A, mean and range charts for B 
E)  c-chart for A, mean and range charts for B 
A)  p-charts for both A and B 
B)  p-chart for A, c-chart for B 
C)  c-charts for both A and B 
D)  p-chart for A, mean and range charts for B 
E)  c-chart for A, mean and range charts for B

Question 11

________ is a computer-controlled warehouse that provides for the automatic placement of parts into and from designated places within the warehouse.

Accepted Answer

Automated

Question 12

What is the basic objective of a process control system?

Accepted Answer

It is to provide a s

Question 13

________ involves the ability to respond with little penalty in time, cost, or customer value.

Accepted Answer

The answer of ________ involves the ability to respond with...

Question 14

In the mass service and service factory quadrants of the service process matrix, the operations manager could focus on all of the following EXCEPT:

Accepted Answer

A)  automation. 
B)  standardization. 
C)  tight quality control. 
D)  removing some services. 
E)  customization. 
A)  automation. 
B)  standardization. 
C)  tight quality control. 
D)  removing some services. 
E)  customization.

Question 15

The higher the process capability ratio, the lower the likelihood that process will be within design specifications.

Accepted Answer

A) True 
 B)False

Question 16

The purpose of an x-bar chart is to determine whether there has been a:

Accepted Answer

A)  change in the dispersion of the process output. 
B)  change in the percent defective in a sample. 
C)  change in the central tendency of the process output. 
D)  change in the number of defects in a sample. 
E)  change in the AOQ. 
A)  change in the dispersion of the process output. 
B)  change in the percent defective in a sample. 
C)  change in the central tendency of the process output. 
D)  change in the number of defects in a sample. 
E)  change in the AOQ.

Question 17

To measure the voltage of batteries, one would sample by attributes.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following statements about acceptance sampling is TRUE?

Accepted Answer

A)  The steeper an OC curve, the better it discriminates between good and bad lots. 
B)  Acceptance sampling removes all defective items. 
C)  Acceptance sampling of incoming lots is replacing statistical process control at the supplier. 
D)  Acceptance sampling occurs continuously along the assembly line. 
E)  All of these are true. 
A)  The steeper an OC curve, the better it discriminates between good and bad lots. 
B)  Acceptance sampling removes all defective items. 
C)  Acceptance sampling of incoming lots is replacing statistical process control at the supplier. 
D)  Acceptance sampling occurs continuously along the assembly line. 
E)  All of these are true.

Question 19

A(n) ________ is a graph that describes how well an acceptance plan discriminates between good and bad lots.

Accepted Answer

OC or oper

Question 20

A lot that is accepted by acceptance sampling is certified to be free of defects.

Accepted Answer

A) True 
 B)False

Exam 7: Process Strategies

Natural variations:

If the Cpk index exceeds 1:

A Cpk index greater than ________ is a capable process, one that generates fewer than 2.7 defects per 1000 at the ±3σ level.

An acceptance sampling plan's ability to discriminate between low quality lots and high quality lots is described by:

What is mass customization?

The use of information technology to monitor and control a physical process is known as:

Natural variations:

The process capability measures Cp and Cpk differ because:

A normal distribution is generally described by its two parameters: the mean and the range.

________ is a computer-controlled warehouse that provides for the automatic placement of parts into and from designated places within the warehouse.

What is the basic objective of a process control system?

________ involves the ability to respond with little penalty in time, cost, or customer value.

In the mass service and service factory quadrants of the service process matrix, the operations manager could focus on all of the following EXCEPT:

The higher the process capability ratio, the lower the likelihood that process will be within design specifications.

The purpose of an x-bar chart is to determine whether there has been a:

To measure the voltage of batteries, one would sample by attributes.

Which of the following statements about acceptance sampling is TRUE?

A(n) ________ is a graph that describes how well an acceptance plan discriminates between good and bad lots.

A lot that is accepted by acceptance sampling is certified to be free of defects.

Operations and Productivity

Operations Strategy in a Global Environment

Project Management

Forecasting

Design of Goods and Services

Managing Quality

Location Strategies

Human Resources, Job Design, and Work Measurement

Supply Chain Management

Inventory Management

Aggregate Planning and Sop

Material Requirements Planning Mrp and Erp

Short-Term Scheduling

Lean Operations

Maintenance and Reliability

Decision-Making Tools

Linear Programming

Transportation Models

Waiting-Line Models

Learning Curves

Simulation

Applying Analytics to Big Data in Operations Management

Filters

If the C_pk index exceeds 1:

A C_pk index greater than ________ is a capable process, one that generates fewer than 2.7 defects per 1000 at the ±3σ level.

The process capability measures C_p and C_pk differ because: