Question 1

A machining process is capable of producing a component with an average specification of 5 inches and a process standard deviation of 0.1 inch.Suppose the customer accepts the component as long as it falls between 4.8 inches and 5.2 inches,then the process capability is:

Accepted Answer

A)  1.333
B)  1.5
C)  0.667
D)  1.0
E)  4.0F) A) and C)
G) A) and B)

Question 2

If failure costs were very high,a company would still use inspection.

Accepted Answer

A) True 
 B)False

Question 3

In process capability analysis,the standard deviation ($\sigma$)refers to the standard deviation of the samples taken from the control chart.

Accepted Answer

A) True 
 B)False

Question 4

Using the information from question 8,what is the upper control limit for the range chart?

Accepted Answer

A)  57.7 lbs
B)  211.5 lbs
C)  317.25 lbs
D)  86.55 lbsE) A) and C)
F) B) and C)

Question 5

Six sigma efforts are aimed at eliminating waste.

Accepted Answer

A) True 
 B)False

Question 6

The quality tool that shows the relationship between two variables is a histogram.

Accepted Answer

A) True 
 B)False

Question 7

The seven tools of quality control are equally applicable to both manufacturing and service industries.

Accepted Answer

A) True 
 B)False

Question 8

The Cp measure requires the process to be centered for an accurate measure of process capability.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is/are assumptions of process control?

Accepted Answer

A)  Random variability cannot be eliminated unless the process is redesigned.
B)  Common causes represent random variability.
C)  Production processes are not usually found in a state of control.
D)  Only a and c
E)  a,b,and cF) A) and B)
G) A) and D)

Question 10

Sampling inspection by attributes:

Accepted Answer

A)  Means each item sampled is classified as defective or not defective based on quality standards
B)  Could be used together with process control and variable measurement as part of a quality control system
C)  Utilizes a discrete scale of measurement
D)  a and c
E)  a,b,and cF) A) and B)
G) C) and D)

Question 11

"A production process delivers large amount of scrap products.Top management has discovered that improper machine maintenance is the reason behind this failure."
The above statement is an example of a special cause of variation.

Accepted Answer

A) True 
 B)False  True

Question 12

Surveys indicate that p charts are used more frequently than average (mean)and range charts are used.

Accepted Answer

A) True 
 B)False  False

Question 13

A process control chart:

Accepted Answer

A)  Assumes that 99.74% of random variations observed will fall within an upper and lower limit
B)  Represents upper and lower control limits set at  ±\pm±  2 standard deviations from the center line
C)  Separates the assignable cause of variation from the common cause of variation
D)  Assigns causes of variation to operator,machine,or material
E)  Both a and c F) B) and D)
G) A) and E)

Question 14

The second step in designing a quality control system is to decide on:

Accepted Answer

A)  The amount of inspection to use
B)  Who should do the inspection
C)  The type of measurement to be used
D)  The critical points in each of the processes where inspection is needed
E)  Whether to certify suppliersF) B) and C)
G) A) and D)

Question 15

Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?

Accepted Answer

A)  Mean
B)  Proportion
C)  Variance
D)  Standard deviation
E)  RangeF) C) and D)
G) B) and E)

Question 16

List and explain the five steps of the DMAIC process.

Accepted Answer

(1)Define: The process is selected for i...

Question 17

The Chair of the Quality Department at Motorola University wants to construct a p-chart for determining whether the four faculty members teaching the course are under control concerning the number of students who fail in the course.Accordingly,the Chair sampled 500 final grades from last year for each instructor,and computed the number of failures per instructor as 13,11,0,and 16 respectively.Compute the upper and lower standard control limits for this chart (rounded to 4 decimals) .

Accepted Answer

A)  0.9500 and 0.0500
B)  0.0600 and 0.1400
C)  0.0388 and 0.0012
D)  0.1400 and 0.0000
E)  None of the aboveF) None of the above
G) All of the above

Question 18

There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Accepted Answer

A) True 
 B)False

Question 19

The ability of the process to meet,or exceed,its specifications can be determined by:

Accepted Answer

A)  Pareto charts
B)  Cause-and-effect diagrams
C)  Histograms
D)  Cp index
E)  Variable control chartsF) A) and E)
G) A) and D) D

Question 20

The appearance of a TV cabinet that is not satisfactory is an example of:

Accepted Answer

A)  Variable measurement
B)  Mean chart
C)  Range chart
D)  Attribute measurement
E)  None of the aboveF) D) and E)
G) All of the above

Exam 9: Quality Control and Improvement

A machining process is capable of producing a component with an average specification of 5 inches and a process standard deviation of 0.1 inch.Suppose the customer accepts the component as long as it falls between 4.8 inches and 5.2 inches,then the process capability is:

Correct Answer
verified

If failure costs were very high,a company would still use inspection.

Correct Answer
verified

In process capability analysis,the standard deviation ( $\sigma$ )refers to the standard deviation of the samples taken from the control chart.

Correct Answer
verified

Using the information from question 8,what is the upper control limit for the range chart?

Correct Answer
verified

Six sigma efforts are aimed at eliminating waste.

Correct Answer
verified

The quality tool that shows the relationship between two variables is a histogram.

Correct Answer
verified

The seven tools of quality control are equally applicable to both manufacturing and service industries.

Correct Answer
verified

The C_p measure requires the process to be centered for an accurate measure of process capability.

Correct Answer
verified

Which of the following is/are assumptions of process control?

Correct Answer
verified

Sampling inspection by attributes:

Correct Answer
verified

"A production process delivers large amount of scrap products.Top management has discovered that improper machine maintenance is the reason behind this failure." The above statement is an example of a special cause of variation.

Correct Answer
verified
True

Surveys indicate that p charts are used more frequently than average (mean)and range charts are used.

Correct Answer
verified
False

A process control chart:

Correct Answer
verified

The second step in designing a quality control system is to decide on:

Correct Answer
verified

Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?

Correct Answer
verified

List and explain the five steps of the DMAIC process.

Correct Answer
verified
(1)Define: The process is selected for i...
View Answer

Correct Answer
verified

There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Correct Answer
verified

The ability of the process to meet,or exceed,its specifications can be determined by:

Correct Answer
verified
D

The appearance of a TV cabinet that is not satisfactory is an example of:

Correct Answer
verified

Exam 9: Quality Control and Improvement

A machining process is capable of producing a component with an average specification of 5 inches and a process standard deviation of 0.1 inch.Suppose the customer accepts the component as long as it falls between 4.8 inches and 5.2 inches,then the process capability is:

Correct AnswerverifiedShow Answer

If failure costs were very high,a company would still use inspection.

Correct AnswerverifiedShow Answer

In process capability analysis,the standard deviation ( σ\sigmaσ )refers to the standard deviation of the samples taken from the control chart.

Correct AnswerverifiedShow Answer

Using the information from question 8,what is the upper control limit for the range chart?

Correct AnswerverifiedShow Answer

Six sigma efforts are aimed at eliminating waste.

Correct AnswerverifiedShow Answer

The quality tool that shows the relationship between two variables is a histogram.

Correct AnswerverifiedShow Answer

The seven tools of quality control are equally applicable to both manufacturing and service industries.

Correct AnswerverifiedShow Answer

The Cp measure requires the process to be centered for an accurate measure of process capability.

Correct AnswerverifiedShow Answer

Which of the following is/are assumptions of process control?

Correct AnswerverifiedShow Answer

Sampling inspection by attributes:

Correct AnswerverifiedShow Answer

"A production process delivers large amount of scrap products.Top management has discovered that improper machine maintenance is the reason behind this failure." The above statement is an example of a special cause of variation.

Correct AnswerverifiedTrue

Surveys indicate that p charts are used more frequently than average (mean)and range charts are used.

Correct AnswerverifiedFalse

A process control chart:

Correct AnswerverifiedShow Answer

The second step in designing a quality control system is to decide on:

Correct AnswerverifiedShow Answer

Which of the following quality control sample statistics indicates a quality characteristic that is an attribute?

Correct AnswerverifiedShow Answer

List and explain the five steps of the DMAIC process.

Correct Answerverified(1)Define: The process is selected for i...View AnswerShow Answer

Correct AnswerverifiedShow Answer

There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Correct AnswerverifiedShow Answer

The ability of the process to meet,or exceed,its specifications can be determined by:

Correct AnswerverifiedD

The appearance of a TV cabinet that is not satisfactory is an example of:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

In process capability analysis,the standard deviation ( $\sigma$ )refers to the standard deviation of the samples taken from the control chart.

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

The C_p measure requires the process to be centered for an accurate measure of process capability.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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True

Correct Answer
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False

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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(1)Define: The process is selected for i...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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D

Correct Answer
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