Question 1

The first step in developing an attribute process chart is to ________.

Accepted Answer

A)  determine whether the critical product characteristic is a variable or an attribute 
B)  establish control limits 
C)  identify critical product characteristics 
D)  identify critical operations where process inspection might be needed 
E)  select the appropriate process chart from the many types of charts 
A)  determine whether the critical product characteristic is a variable or an attribute 
B)  establish control limits 
C)  identify critical product characteristics 
D)  identify critical operations where process inspection might be needed 
E)  select the appropriate process chart from the many types of charts D

Question 2

The np chart is a graph of the number of defectives in a subgroup.

Accepted Answer

A) True 
 B)False  True

Question 3

An irregularity or problem with a larger unit 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 A

Question 4

Two components of reliability 0.90 are in parallel and this subsystem is connected in series to a component with a reliability of 0.95. The overall system reliability is ________.

Accepted Answer

A)  0.93 
B)  0.94 
C)  0.95 
D)  0.96 
E)  0.97 
A)  0.93 
B)  0.94 
C)  0.95 
D)  0.96 
E)  0.97

Question 5

Fifty crash helmets are tested for one hundred hours per helmet. Of all the helmets tested, only one experiences a malfunction during the test. What is the failure rate for the helmets?

Accepted Answer

A)  0.0002 
B)  0.002 
C)  0.004 
D)  0.0008 
E)  0.016 
A)  0.0002 
B)  0.002 
C)  0.004 
D)  0.0008 
E)  0.016

Question 6

The reliability model that shows that products are more likely to fail either very early in their useful life or very late in their useful life is called the ________.

Accepted Answer

A)  half-moon hazard function 
B)  saucer-shaped hazard function 
C)  half-circle hazard function 
D)  cone-shaped hazard function 
E)  bathtub-shaped hazard function 
A)  half-moon hazard function 
B)  saucer-shaped hazard function 
C)  half-circle hazard function 
D)  cone-shaped hazard function 
E)  bathtub-shaped hazard function

Question 7

What is the useful life in hours for a product having a reliability of 0.985 and a failure rate of 0.015 failures per hour?

Accepted Answer

A)  120 
B)  200 
C)  280 
D)  360 
E)  440 
A)  120 
B)  200 
C)  280 
D)  360 
E)  440

Question 8

An np chart can be used whether or not the sample sizes are the same.

Accepted Answer

A) True 
 B)False

Question 9

Reliability models assume statistical independence between failure events. This means that ________.

Accepted Answer

A)  components do not fail 
B)  if one component fails, the entire system fails 
C)  parallel systems are unnecessary 
D)  the failure of one component does not influence another to fail 
E)  series systems are unnecessary 
A)  components do not fail 
B)  if one component fails, the entire system fails 
C)  parallel systems are unnecessary 
D)  the failure of one component does not influence another to fail 
E)  series systems are unnecessary

Question 10

What is a u chart and how is it similar to or different than a c chart?

Accepted Answer

The u chart is a graph of the average nu

Question 11

The object of using process charts is to continually improve your processes.

Accepted Answer

A) True 
 B)False

Question 12

What is the system availability for something that has a mean time between failures of 100 hours and needs an average of 4 hours to repair when it does fail?

Accepted Answer

A)  0.98 
B)  0.92 
C)  0.96 
D)  0.90 
E)  0.84 
A)  0.98 
B)  0.92 
C)  0.96 
D)  0.90 
E)  0.84

Question 13

________ attributes relate to senses of touch, smell, taste, and sound.

Accepted Answer

A)  Structural 
B)  Sensory 
C)  Performance 
D)  Consensual 
E)  Ethical 
A)  Structural 
B)  Sensory 
C)  Performance 
D)  Consensual 
E)  Ethical

Question 14

One way to raise system availability would be to lower the mean time to repair.

Accepted Answer

A) True 
 B)False

Question 15

What is the approximate useful life in hours for a product having a reliability of 0.9978 and a failure rate of 0.001 failures per hour?

Accepted Answer

A)  6120 
B)  5600 
C)  5000 
D)  4400 
E)  3800 
A)  6120 
B)  5600 
C)  5000 
D)  4400 
E)  3800

Question 16

Production-related attributes are more important to quality managers than customer-based attributes.

Accepted Answer

A) True 
 B)False

Question 17

The atmosphere and other aspects of a customer's experience in a hotel would be examples of sensory attributes.

Accepted Answer

A) True 
 B)False

Question 18

A system is composed of three components in series having reliabilities of 0.99, 0.98, and 0.97. What is the overall system reliability?

Accepted Answer

A)  0.97 
B)  0.96 
C)  0.95 
D)  0.94 
E)  0.93 
A)  0.97 
B)  0.96 
C)  0.95 
D)  0.94 
E)  0.93

Question 19

If a set of components is in a series, as opposed to being parallel, the system can function if a given component in the system fails.

Accepted Answer

A) True 
 B)False

Question 20

What are attribute charts used for and how do they work?

Accepted Answer

Attribute charts deal with binomial and

The first step in developing an attribute process chart is to ________.

The np chart is a graph of the number of defectives in a subgroup.

An irregularity or problem with a larger unit is a(n) ________.

Two components of reliability 0.90 are in parallel and this subsystem is connected in series to a component with a reliability of 0.95. The overall system reliability is ________.

Fifty crash helmets are tested for one hundred hours per helmet. Of all the helmets tested, only one experiences a malfunction during the test. What is the failure rate for the helmets?

The reliability model that shows that products are more likely to fail either very early in their useful life or very late in their useful life is called the ________.

What is the useful life in hours for a product having a reliability of 0.985 and a failure rate of 0.015 failures per hour?

An np chart can be used whether or not the sample sizes are the same.

Reliability models assume statistical independence between failure events. This means that ________.

What is a u chart and how is it similar to or different than a c chart?

The object of using process charts is to continually improve your processes.

What is the system availability for something that has a mean time between failures of 100 hours and needs an average of 4 hours to repair when it does fail?

________ attributes relate to senses of touch, smell, taste, and sound.

One way to raise system availability would be to lower the mean time to repair.

What is the approximate useful life in hours for a product having a reliability of 0.9978 and a failure rate of 0.001 failures per hour?

Production-related attributes are more important to quality managers than customer-based attributes.

The atmosphere and other aspects of a customer's experience in a hotel would be examples of sensory attributes.

A system is composed of three components in series having reliabilities of 0.99, 0.98, and 0.97. What is the overall system reliability?

If a set of components is in a series, as opposed to being parallel, the system can function if a given component in the system fails.

What are attribute charts used for and how do they work?

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

The first step in developing an attribute process chart is to ________.

The np chart is a graph of the number of defectives in a subgroup.

An irregularity or problem with a larger unit is a(n) ________.

Two components of reliability 0.90 are in parallel and this subsystem is connected in series to a component with a reliability of 0.95. The overall system reliability is ________.

Fifty crash helmets are tested for one hundred hours per helmet. Of all the helmets tested, only one experiences a malfunction during the test. What is the failure rate for the helmets?

The reliability model that shows that products are more likely to fail either very early in their useful life or very late in their useful life is called the ________.

What is the useful life in hours for a product having a reliability of 0.985 and a failure rate of 0.015 failures per hour?

An np chart can be used whether or not the sample sizes are the same.

Reliability models assume statistical independence between failure events. This means that ________.

What is a u chart and how is it similar to or different than a c chart?

The object of using process charts is to continually improve your processes.

What is the system availability for something that has a mean time between failures of 100 hours and needs an average of 4 hours to repair when it does fail?

________ attributes relate to senses of touch, smell, taste, and sound.

One way to raise system availability would be to lower the mean time to repair.

What is the approximate useful life in hours for a product having a reliability of 0.9978 and a failure rate of 0.001 failures per hour?

Production-related attributes are more important to quality managers than customer-based attributes.

The atmosphere and other aspects of a customer's experience in a hotel would be examples of sensory attributes.

A system is composed of three components in series having reliabilities of 0.99, 0.98, and 0.97. What is the overall system reliability?

If a set of components is in a series, as opposed to being parallel, the system can function if a given component in the system fails.

What are attribute charts used for and how do they work?

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