Question 1

Structural attributes have to do with physical characteristics of a particular product or service.

Accepted Answer

A) True 
 B)False

Question 2

The reliability of a product having a failure rate of 0.0001 and a useful life of 2080 hours is 0.81.

Accepted Answer

A) True 
 B)False

Question 3

What is the system availability for something that has a mean time between failures of 168 hours and needs an average of 48 hours to repair when it does fail?

Accepted Answer

A)  0.98 
B)  0.93 
C)  0.88 
D)  0.83 
E)  0.78 
A)  0.98 
B)  0.93 
C)  0.88 
D)  0.83 
E)  0.78

Question 4

A winemaker tastes several 750 ml bottles of varying vintages. A good choice for such a test would be a c chart.

Accepted Answer

A) True 
 B)False

Question 5

A quality engineer notes that a process produces data that are binomial and has been obtained using a sample space that is constant. The primary interest of the process manager is in the percentage of bad parts. An appropriate control chart to use would be a(n) ________.

Accepted Answer

A)  p chart 
B)  r chart 
C)  c chart 
D)  u chart 
E)  d chart 
A)  p chart 
B)  r chart 
C)  c chart 
D)  u chart 
E)  d chart

Question 6

One way to achieve very high system availability would be for the mean time between failures to be as low as possible.

Accepted Answer

A) True 
 B)False

Question 7

A unit that, as a whole, is not acceptable or does not meet performance requirements is a(n) ________.

Accepted Answer

A)  defect 
B)  defective 
C)  flaw 
D)  mistake 
E)  error 
A)  defect 
B)  defective 
C)  flaw 
D)  mistake 
E)  error

Question 8

A system has an availability of 90% and a mean time to repair of 48 hours. What is the mean time between failures?

Accepted Answer

A)  400 hours 
B)  432 hours 
C)  464 hours 
D)  496 hours 
E)  528 hours 
A)  400 hours 
B)  432 hours 
C)  464 hours 
D)  496 hours 
E)  528 hours

Question 9

A local university is deciding between three different computer networks. The network servers have a mean time between failure and mean time to repair as shown in the table.   Which server(s) will provide the greatest availability?

Accepted Answer

A)  Server A 
B)  Server B 
C)  Server C 
D)  Server A and Server B 
E)  Server B and Server C 
A)  Server A 
B)  Server B 
C)  Server C 
D)  Server A and Server B 
E)  Server B and Server C

Question 10

The vertical axis on the bathtub function is ________.

Accepted Answer

A)  failure rate 
B)  time 
C)  predicted life 
D)  design reliability 
E)  useful life 
A)  failure rate 
B)  time 
C)  predicted life 
D)  design reliability 
E)  useful life

Question 11

A system is composed of three components in series having reliabilities of 0.85, 0.92, and 0.90. What is the overall system reliability?

Accepted Answer

A)  0.90 
B)  0.85 
C)  0.80 
D)  0.75 
E)  0.70 
A)  0.90 
B)  0.85 
C)  0.80 
D)  0.75 
E)  0.70

Question 12

A system is composed of three components in series having reliabilities of 0.99, 0.95, and 0.90. What is the overall system reliability?

Accepted Answer

A)  0.95 
B)  0.90 
C)  0.85 
D)  0.80 
E)  0.75 
A)  0.95 
B)  0.90 
C)  0.85 
D)  0.80 
E)  0.75

Question 13

Use the following table to answer the question(s) below.
  
-A manufacturer of FAX machines checks samples of 50 units for functionality at the conclusion of the assembly process. The results of 10 samples are shown. What are the lower and upper 3-sigma control limits?

Accepted Answer

A)  (-0.01, 0.09) 
B)  (-0.01, 0.00) 
C)  (-0.01, 0.29) 
D)  (0.00, 0.09) 
E)  (0.00, 0.29) 
A)  (-0.01, 0.09) 
B)  (-0.01, 0.00) 
C)  (-0.01, 0.29) 
D)  (0.00, 0.09) 
E)  (0.00, 0.29)

Question 14

A producer of contact lenses regularly takes samples of 100 lenses and inspects them for scratches. If a lens has a single scratch, it cannot be sold. The results of 10 samples are shown. What sample is out of control?

Accepted Answer

A)  2 
B)  4 
C)  6 
D)  8 
E)  none of the above 
A)  2 
B)  4 
C)  6 
D)  8 
E)  none of the above

Question 15

Three items of reliability 0.90 in series has an overall system reliability of 0.73.

Accepted Answer

A) True 
 B)False

Question 16

Determining whether a critical product characteristic is a variable or attribute is one of the steps in developing a process chart.

Accepted Answer

A) True 
 B)False

Question 17

Customer-based attributes are internal and engineering-oriented.

Accepted Answer

A) True 
 B)False

Question 18

Attribute charts are developed and interpreted the same way as variables charts.

Accepted Answer

A) True 
 B)False

Question 19

Describe the differences between a defect and a defective. Provide an example of each and identify the types of process charts that would monitor defects and defectives.

Accepted Answer

A defect is an irregularity or problem w

Question 20

The p chart is a process chart that is used to graph the proportion of items in a sample that are defective.

Accepted Answer

A) True 
 B)False

Structural attributes have to do with physical characteristics of a particular product or service.

The reliability of a product having a failure rate of 0.0001 and a useful life of 2080 hours is 0.81.

What is the system availability for something that has a mean time between failures of 168 hours and needs an average of 48 hours to repair when it does fail?

A winemaker tastes several 750 ml bottles of varying vintages. A good choice for such a test would be a c chart.

A quality engineer notes that a process produces data that are binomial and has been obtained using a sample space that is constant. The primary interest of the process manager is in the percentage of bad parts. An appropriate control chart to use would be a(n) ________.

One way to achieve very high system availability would be for the mean time between failures to be as low as possible.

A unit that, as a whole, is not acceptable or does not meet performance requirements is a(n) ________.

A system has an availability of 90% and a mean time to repair of 48 hours. What is the mean time between failures?

A local university is deciding between three different computer networks. The network servers have a mean time between failure and mean time to repair as shown in the table. Which server(s) will provide the greatest availability?

The vertical axis on the bathtub function is ________.

A system is composed of three components in series having reliabilities of 0.85, 0.92, and 0.90. What is the overall system reliability?

A system is composed of three components in series having reliabilities of 0.99, 0.95, and 0.90. What is the overall system reliability?

Use the following table to answer the question(s) below. -A manufacturer of FAX machines checks samples of 50 units for functionality at the conclusion of the assembly process. The results of 10 samples are shown. What are the lower and upper 3-sigma control limits?

A producer of contact lenses regularly takes samples of 100 lenses and inspects them for scratches. If a lens has a single scratch, it cannot be sold. The results of 10 samples are shown. What sample is out of control?

Three items of reliability 0.90 in series has an overall system reliability of 0.73.

Determining whether a critical product characteristic is a variable or attribute is one of the steps in developing a process chart.

Customer-based attributes are internal and engineering-oriented.

Attribute charts are developed and interpreted the same way as variables charts.

Describe the differences between a defect and a defective. Provide an example of each and identify the types of process charts that would monitor defects and defectives.

The p chart is a process chart that is used to graph the proportion of items in a sample that are defective.

Differing Perspectives on Quality

Quality Theory

Global Supply Chain Quality and International Quality Standards

Strategic Quality Planning

The Voice of the Customer

The Voice of the Market

Quality and Innovation in Product and Process Design

Designing Quality Services

Managing Supplier Quality in the Supply Chain

The Tools of Quality

Statistically Based Quality Improvement for Variables

Six Sigma Management and Lean Tools

Managing Quality Improvement Teams and Projects

Implementing and Validating the Quality System

Filters

Exam 12: Statistically Based Quality Improvement for Attributes

Structural attributes have to do with physical characteristics of a particular product or service.

The reliability of a product having a failure rate of 0.0001 and a useful life of 2080 hours is 0.81.

What is the system availability for something that has a mean time between failures of 168 hours and needs an average of 48 hours to repair when it does fail?

A winemaker tastes several 750 ml bottles of varying vintages. A good choice for such a test would be a c chart.

A quality engineer notes that a process produces data that are binomial and has been obtained using a sample space that is constant. The primary interest of the process manager is in the percentage of bad parts. An appropriate control chart to use would be a(n) ________.

One way to achieve very high system availability would be for the mean time between failures to be as low as possible.

A unit that, as a whole, is not acceptable or does not meet performance requirements is a(n) ________.

A system has an availability of 90% and a mean time to repair of 48 hours. What is the mean time between failures?

A local university is deciding between three different computer networks. The network servers have a mean time between failure and mean time to repair as shown in the table. Which server(s) will provide the greatest availability?

The vertical axis on the bathtub function is ________.

A system is composed of three components in series having reliabilities of 0.85, 0.92, and 0.90. What is the overall system reliability?

A system is composed of three components in series having reliabilities of 0.99, 0.95, and 0.90. What is the overall system reliability?

Use the following table to answer the question(s) below. -A manufacturer of FAX machines checks samples of 50 units for functionality at the conclusion of the assembly process. The results of 10 samples are shown. What are the lower and upper 3-sigma control limits?

A producer of contact lenses regularly takes samples of 100 lenses and inspects them for scratches. If a lens has a single scratch, it cannot be sold. The results of 10 samples are shown. What sample is out of control?

Three items of reliability 0.90 in series has an overall system reliability of 0.73.

Determining whether a critical product characteristic is a variable or attribute is one of the steps in developing a process chart.

Customer-based attributes are internal and engineering-oriented.

Attribute charts are developed and interpreted the same way as variables charts.

Describe the differences between a defect and a defective. Provide an example of each and identify the types of process charts that would monitor defects and defectives.

The p chart is a process chart that is used to graph the proportion of items in a sample that are defective.

Differing Perspectives on Quality

Quality Theory

Global Supply Chain Quality and International Quality Standards

Strategic Quality Planning

The Voice of the Customer

The Voice of the Market

Quality and Innovation in Product and Process Design

Designing Quality Services

Managing Supplier Quality in the Supply Chain

The Tools of Quality

Statistically Based Quality Improvement for Variables

Six Sigma Management and Lean Tools

Managing Quality Improvement Teams and Projects

Implementing and Validating the Quality System

Filters