Managing Quality

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Questions Bank

Introduction to Managing Operations Across the Supply Chain
Operations and Supply Chain Strategy
Managing Processes and Capacity
Extension : A Supplement: Process Mapping and Analysis
Productprocess Innovation
Manufacturing and Service Process Structures
Managing Quality
Extension: A Supplement: Quality Improvement Tools
Managing Inventories
Lean Systems
Customer Service Management
Sourcing and Supply Management
Logistics Management
Demand Planning: Forecasting and Demand Management
Sales and Operations Planning
Materials and Resource Requirements Planning
Project Management
Extension : A Supplement: Advanced Methods for Project Scheduling
Sustainable Operations Managementpreparing for the Future

All Questions

Question 1

Free

Multiple Choice

The two types of data involved in quality control are:

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Assignable factors and random factors.

Variables and attributes.

Random measurements and 100 percent measurements.

Accuracy and precision.

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Question 2

Free

Multiple Choice

"Pass/ fail" and "go/no go" are both examples of:

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Attribute data.

Decision data.

Process flow data.

Variable data.

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Question 3

Free

Multiple Choice

The width of a histogram showing a distribution of data indicates the __________ of the process that generated the distribution.

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Predictability

Average

Bias

Central tendency

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Question 4

Free

Multiple Choice

Zanda Corp.has determined that it has too many products returned from customers.Zanda is interested in determining what factors or elements could contribute to the large number of returns.Which of the following quality tools would Zanda use to achieve this objective?

Choose correct answer/s

Process flowchart

Pareto analysis

Fishbone diagram

Run diagram

Scatter diagram

Check answer

Question 5

Free

Multiple Choice

You are involved in the implementation of a quality improvement program.Your immediate goal is to identify what problems you should focus on (ideally you want to focus on those that give you the biggest bang for the buck).Which of the following quality control procedures is the most appropriate?

Choose correct answer/s

Fishbone diagrams

Process flow charts

Pareto analysis

Histograms

Check answer

Question 6

Multiple Choice

Suppose that you are a process manager in a manufacturing plant, and you suspect that there is a relationship between the room temperature of the plant and the weights of the plastic caps produced by an injection molding process.What quality improvement tool would you use to investigate this claim?

Choose correct answer/s

Fishbone diagram

Check list

Pareto analysis

Histogram

Scatter diagram

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Question 7

Multiple Choice

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.What is the process capability as measured by C_p?

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0.84

1.67

0.60

1.00

1.01

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Question 8

Multiple Choice

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.What is C_pk?

Choose correct answer/s

0.81

1.01

0.33

1.34

0.80

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Question 9

Multiple Choice

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.The process can be characterized as:

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Capable.

Unreliable.

Just barely capable.

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Question 10

Multiple Choice

A firm has an existing process that it would like to use for producing a part it will sell to an industrial customer.The customer requires that defective (out of specification) parts be kept to 3,000 parts per million (three-tenths of 1 percent) or less.A process capability study done on the process revealed that it has a process capability index (C_pk) of 1.00 for this part.What should the firm conclude from the study?

Choose correct answer/s

The process is not capable, but with careful process control, it could be used to meet the customer's requirements.

The process is highly capable, and when operating in control, a very high percentage of output will meet the customer's requirements.

The process is not capable, and even with careful control, it will not be able to meet the customer's requirements.

The process is capable, but just barely, and will require careful monitoring in order to meet customer requirements.

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Question 11

Multiple Choice

Sample means and ranges were obtained for five samples of 10 units per sample from a production process.Assume the process was considered to be in control during the period these samples were collected.The results are as follows: 1 10.58 .23
2 9)97 .25
3 9)99 .21
4 10.23 .28
5 10.23 .28
What is the central line of the X chart for this process

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10.00

10.05

10.20

9.45

9.75

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Question 12

Multiple Choice

Sample means and ranges were obtained for five samples of 10 units per sample from a production process.Assume the process was considered to be in control during the period these samples were collected.The results are as follows: 1 10.58 .23
2 9)97 .25
3 9)99 .21
4 10.23 .28
5 10.23 .28
LCL for the three sigma X chart for the process is approximately (for a sample size of 10, A2 = 0.31):

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10.12.

10.05.

10.94.

9.44.

9.75.

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Question 13

Multiple Choice

The objective of statistical process control (SPC) is to:

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Determine whether a batch of raw materials should be accepted or rejected.

Determine whether a batch of finished goods should be accepted or rejected.

Detect assignable cause variations versus normal random variations in the process.

Identify variable versus attribute measures.

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Question 14

Multiple Choice

Hugging in a control chart usually indicates:

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The process is out of control.

Systematic problems in the process that require attention.

The process is in control.

Something is occurring that is masking natural variation.

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Question 15

Multiple Choice

The Taguchi methods link process design to:

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Customer expectations.

Production availability.

Process capability.

Unexplained variance.

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Question 16

Multiple Choice

Which of the following categories of causes would be most appropriate for a Marriott (an international hotel chain) or McDonalds (an international fast food chain) or the local hair stylist?

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People, Machine/Equipment, Methods/Processes, Materials

Machine, Method, Material, Manpower/Mindpower, Measurement, Mother Nature

Product, Price, Place, Promotion, People/personnel, Process, Physical evidence

People, Price, Machine, Materials, Mother Nature

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Question 17

Multiple Choice

Which of the following tools is most appropriate when we are interested in determining if a process that was generating attribute-type data (pass/fail, good/bad) was under control?

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p control chart

control chart

Scatterplot

Histogram

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Question 18

Multiple Choice

You have been given the following data: Specification information: Anything between 10 and 20 units per order is acceptable.
Process Mean: 13
Upper limit of the process: 16 Lower limit of the process: 10
Using this information, which of the following conclusions is most appropriate?

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The process is not capable since it is not centered.

The process is barely capable and not centered.

The process is capable and centered.

The process is not capable and centered.

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Question 19

Multiple Choice

You have been given the following sample information that has been drawn from the last sample taken: Mean of the sample: 12.50
Lower control limit for the range: 0 Upper control limit for the range: 10.6
Observations: 13, 12, 8, 10, 11, 16, 17, 8, 17, 18, 20, 14 Which of the following conclusions does this data support?

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The process is under control.

The process is not under control.

The sample is within specifications.

The sample is out of specification.

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Question 20

Multiple Choice

You are given the following data for taillight assemblies: Which of the following tools does this data represent?

Choose correct answer/s

C_p/C_pk analysis

Histogram

Control chart

Check sheet

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Managing Quality

The two types of data involved in quality control are:

"Pass/ fail" and "go/no go" are both examples of:

The width of a histogram showing a distribution of data indicates the __________ of the process that generated the distribution.

Zanda Corp.has determined that it has too many products returned from customers.Zanda is interested in determining what factors or elements could contribute to the large number of returns.Which of the following quality tools would Zanda use to achieve this objective?

You are involved in the implementation of a quality improvement program.Your immediate goal is to identify what problems you should focus on (ideally you want to focus on those that give you the biggest bang for the buck).Which of the following quality control procedures is the most appropriate?

Suppose that you are a process manager in a manufacturing plant, and you suspect that there is a relationship between the room temperature of the plant and the weights of the plastic caps produced by an injection molding process.What quality improvement tool would you use to investigate this claim?

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.What is the process capability as measured by Cp?

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.What is Cpk?

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.The process can be characterized as:

The objective of statistical process control (SPC) is to:

Hugging in a control chart usually indicates:

The Taguchi methods link process design to:

Which of the following categories of causes would be most appropriate for a Marriott (an international hotel chain) or McDonalds (an international fast food chain) or the local hair stylist?

Which of the following tools is most appropriate when we are interested in determining if a process that was generating attribute-type data (pass/fail, good/bad) was under control?

You have been given the following data: Specification information: Anything between 10 and 20 units per order is acceptable.Process Mean: 13Upper limit of the process: 16 Lower limit of the process: 10Using this information, which of the following conclusions is most appropriate?

You are given the following data for taillight assemblies: Which of the following tools does this data represent?

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.What is the process capability as measured by C_p?

The specifications for the diameter of a molded part are 10 mm ± 0.5 mm.The actual average and standard deviation from 250 parts sampled is 10.1 mm and 0.1 mm, respectively.What is C_pk?

You have been given the following data: Specification information: Anything between 10 and 20 units per order is acceptable.
Process Mean: 13
Upper limit of the process: 16 Lower limit of the process: 10
Using this information, which of the following conclusions is most appropriate?