Question 1

The relationship between the natural variation and specifications is quantified by a measure known as the _____.

Accepted Answer

A)  net promoter score 
B)  process capability index 
C)  net detractor score 
D)  process design index

Question 2

Which of the following is not one of the components of a control system?

Accepted Answer

A)  A performance standard or goal 
B)  A means of measuring actual performance 
C)  Customer feedback forms and the service people who process and address them 
D)  Comparison of actual performance with the standard to form the basis for corrective action

Question 3

The time taken for guests to check out at a hotel front desk was measured over the course of several weeks.The management believes that the target time for checking out guests should be between 2 and 3 minutes with a target of 2.5 minutes.The data gathered for the actual process had a mean time of 2.75 minutes with a standard deviation of 0.45 minutes.The process capability index will be:

Accepted Answer

A)  less than or equal to 1. 
B)  more than 3 but less than or equal to 5. 
C)  more than 4 but less than or equal to 5. 
D)  more than 5.

Question 4

The task of _____ is to ensure that a good or service conforms to specifications and meets customer requirements by monitoring and measuring processes and making any necessary adjustments to maintain a specified level of performance.

Accepted Answer

A)  job design 
B)  visual control 
C)  quality control 
D)  forecasting

Question 5

In determining whether a process is in statistical control,the _____ is always analyzed first.

Accepted Answer

A)  R-chart 
B)  p-chart 
C)  x̄-chart 
D)  c-chart

Question 6

The value of the process capability index,(Cp),depends on the mean of the process.

Accepted Answer

A) True 
 B)False

Question 7

In the context of the net promoter score (NPS),scores of 7 or 8 are associated with _____,customers who are satisfied but may switch to competitors.

Accepted Answer

A)  detractors 
B)  passives 
C)  promoters 
D)  proponents

Question 8

Which of the following is true of control charts?

Accepted Answer

A)  Control charts can only be used for processes that have a very high sigma level. 
B)  The use of small sample sizes in control charts increases the chances that a process may have changed during the sampling interval. 
C)  Conventional statistical process control charts have the lowest frequency of false alarms. 
D)  Standard control charts are not effective when the rate of defects is extremely low.

Question 9

In the context of quality control practices in manufacturing,if supplier documentation is done properly,incoming inspection can be completely eliminated.

Accepted Answer

A) True 
 B)False

Question 10

Vincent,a quality control manager at an apparel manufacturing company,studies and monitors quality using R-charts.He discovers a quality problem with the construction of zippers.Vincent proposes that 25 samples of eight observations each be collected on a daily basis.He plans to prepare an R-chart to monitor the variation in the size of the zippers.The data collected shows that the mean length of the zippers is 15 inches and the average range is 0.5 inches.If D3 for the R-chart is 0.136,the lower control limit (LCLR)for the R-chart will be:

Accepted Answer

A)  less than or equal to 1. 
B)  more than 1 but less than or equal to 2. 
C)  more than 2 but less than or equal to 3. 
D)  more than 4.

Question 11

Quality at the _____ means that the people responsible for the work control of their processes by identifying and correcting any defects or errors when the first are recognized or occur.

Accepted Answer

A)  conclusion 
B)  workstation 
C)  source 
D)  delivery

Question 12

The 1:10:100 Rule states that if a defect is first detected during the production process,it might cost $1 to fix.

Accepted Answer

A) True 
 B)False

Question 13

The lower and upper specification limits for a toothpaste filling machine are 10.50 and 12.00 ounces,respectively.The standard deviation is 0.05.The process capability index of the machine will be:

Accepted Answer

A)  less than or equal to 3. 
B)  more than 3 but less than or equal to 5. 
C)  more than 4 but less than or equal to 5. 
D)  more than 5.

Question 14

A bottling machine fills soda bottles with an average of 12.000 ounces of soda.The standard deviation is 0.002 ounces.If the design specification for the fill weight of the bottles is 12.000 ounces plus or minus 0.015 ounces,calculate the process capability index of the machine.

Accepted Answer

A)  Less than or equal to 1 
B)  More than 1 but less than or equal to 2 
C)  More than 2 but less than or equal to 3 
D)  More than 4

Exam 17: Quality Control Spc

The relationship between the natural variation and specifications is quantified by a measure known as the _____.

Which of the following is not one of the components of a control system?

The task of _____ is to ensure that a good or service conforms to specifications and meets customer requirements by monitoring and measuring processes and making any necessary adjustments to maintain a specified level of performance.

In determining whether a process is in statistical control,the _____ is always analyzed first.

The value of the process capability index,(C_p),depends on the mean of the process.

In the context of the net promoter score (NPS) ,scores of 7 or 8 are associated with _____,customers who are satisfied but may switch to competitors.

Which of the following is true of control charts?

In the context of quality control practices in manufacturing,if supplier documentation is done properly,incoming inspection can be completely eliminated.

Quality at the _____ means that the people responsible for the work control of their processes by identifying and correcting any defects or errors when the first are recognized or occur.

The 1:10:100 Rule states that if a defect is first detected during the production process,it might cost $1 to fix.

The lower and upper specification limits for a toothpaste filling machine are 10.50 and 12.00 ounces,respectively.The standard deviation is 0.05.The process capability index of the machine will be:

A bottling machine fills soda bottles with an average of 12.000 ounces of soda.The standard deviation is 0.002 ounces.If the design specification for the fill weight of the bottles is 12.000 ounces plus or minus 0.015 ounces,calculate the process capability index of the machine.