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Six Sigma Course Practice Test Q&As 17

Question: Which of the following statements are true about learning curves?
  Learning curves can be applied to individuals and organizations.
  A learning curve may be developed from an arithmetic tabulation, by logarithms, or by some other curve-fitting method.
  Time per unit and units of output per time period are two ways to think about the improved performance that comes with learning curves.
  A and C
  A and B
  A, B, and C

Show or Reveal the Answer

A, B, and C

Key Points: A, B, and C all describe methods of applying the learning curve concept.

Question: Quality Function Deployment
  is a tool for translating customer requirements into concrete operating and engineering goals.
  facilitates inter-functional cooperation between marketing, engineering, and manufacturing.
  provides a better understanding and focus on process characteristics that require improvements.
  A and B
  A, B, and C

Show or Reveal the Answer

A and B
Key Points: The end result of QFD is a better understanding and focus on product characteristics (and not process characteristics) that require improvements.

Question: Which of the following are parts of IDEO's product design process?
  Rapid prototyping
  Using project milestones
  Brainstorming
  Benchmarking
  A and C

Show or Reveal the Answer

A and C
Key Points: IDEO makes quick prototypes and uses extensive brainstorming to come up with their great ideas.

Question: Which of the following statements is true about value analysis/value engineering (VA/VE)?
  The objective of VA/VE is to achieve equivalent or better performance at a lower cost.
  The purpose of VA/VE is to simplify products and processes.
  VA is performed before the production stage, while VE deals with products already in production.
  both A and B
  A, B, and C

Show or Reveal the Answer

both A and B
Key Points: VA deals with products already in production, while VE is performed before the production phase.

Question: In which phase of new-product design process are considerations to target market, desired level of performance, investment requirements and financial impact made:
  ramp-up
  detailed engineering
  concept development and product planning
  pilot manufacturing phase
  preliminary process design

Show or Reveal the Answer

concept development and product planning
Key Points: The primary activities in the detailed engineering phase include the design and construction of working types. Preliminary process design is not a separate phase. During pilot manufacturing phase the units of the products are produced, while in the ramp up phase the process is refined and debugged.

Question: Which of the following are characteristics of a company's core competence?
  It is not easy to outsource
  It provides potential access to a variety of markets
  It increases perceived customer benefits
  It is hard for competitors to imitate
  B, C and D.

Show or Reveal the Answer

B, C and D.
Key Points: Something being easy to outsource is not a core competence characteristic.

Question: Manufacturing is involved in what phases of the product design process?
  Concept Development
  Production Ramp-up
  Initial Planning
  Concept Development
  A, B, C and D

Show or Reveal the Answer

A, B, C and D
Key Points: Manufacturing should be involved in all phases of product design.

Question: When marketing, engineering, and operations simultaneously develop a process (cross-functional integration), this approach is known as __________ ________________.
  sequential process
  traditional approach
  concurrent engineering
  both A and B
  none of the above

Show or Reveal the Answer

concurrent engineering.
Key Points: Unlike the traditional serial or sequential approach, concurrent engineering uses cross-functional integration for concurrent development of a product.

Question: When evaluating a new product development project using net present value analysis, which of the following will make the project more attractive?

  Delaying the start of the project
  Making the project run over a longer period of time
  Improving (bringing forward) the date when revenue will begin
  A and B
  None of the above are correct.

Show or Reveal the Answer

Improving (bringing forward) the date when revenue will begin
Key Points: Starting the revenue stream earlier will always make a project more attractive.

Question: Studies on a bottle-filling machine indicates it fills bottles to a mean of 16 ounces with a standard deviation of 0.10 ounces. What is the process specification, assuming the Cpk index of 1?
  0.10 ounces
  0.20 ounces
  0.30 ounces
  16.0 ounces plus or minus 0.30 ounces
  none of the above

Show or Reveal the Answer

16.0 ounces plus or minus 0.30 ounces
Key Points: lower spec = 15.7 ounces and upper spec = 16.3 ounces

Question: A shift in the process mean for a measured characteristic would most likely be detected by a:
  c-chart
  p-chart
  x-bar chart
  R-chart
  s-chart

Show or Reveal the Answer

x-bar chart

Question: Processes are examined in terms of steps or units that turn inputs into an output such as a product or a service. The following are considered inputs EXCEPT:
  matrices
  management
  materials
  mother nature

Show or Reveal the Answer

matrices

Explanation : Matrices are not considered inputs.

Process inputs are people, materials, methods, management, measurement systems, and the mother nature (environment). These inputs are considered important in the quality and efficiency of products and services. Processes often include sub-processes whereby inputs and resources are used. In quality control, it is important to assess whether sufficient resources have been provided in every process.

Question: Why would you want your baseline sigma to be 1, 2, or 3?
  Because a "1, 2, or 3" is the target
  Because a "1, 2, or 3" is the voice of the customer
  Because a "1, 2, or 3" is the desired value a process can achieve in terms of baseline sigma according to leading quality experts
  So the team can see improvement in the project

Show or Reveal the Answer

So the team can see improvement in the project

Question: The number of accidents occurring at a busy intersection in Boston averages 5 per week. What is the probability that no accidents will occur in any given week? (Must use Poisson).
  0.67%
  0.00%
  61.60%
  99.33%

Show or Reveal the Answer

0.67%

Question: Use continuous data where possible because:
  It separates the vital few from the useful many
  It tells us the magnitude of the issue
  It is best at discerning whether or not we have a defective product or service
  It is of the pass/fail variety and therefore is better for failure analysis

Show or Reveal the Answer

It tells us the magnitude of the issue

a point which is outside of the lower control limit on an r-chart:
acceptance sampling, when it is used, is used:
quality control, in contrast to quality assurance, is implemented:
quality control tools are not really used to fix quality so much as they are used to:
the r chart is a control chart used to monitor a process mean
characteristic would most likely be detected by a:
which of the following quality control sample statistics indicates a quality characteristic
if a sample point plotted on a control chart is outside the control limits
the number of runs up and down for the preceding data is:
average time between completion of units is known as quizlet
the cycle time of a process if the average time between completion of success units of output
which of the following is not a basic type of production layout format?
which of the following statements is not true about value analysis/value engineering (va/ve)?
which of the following would not be considered an input in the airline business?
the control chart used for the number of defects per unit is
a control chart used to monitor the number of defects per company is called
what type of control chart is used to monitor the number of defects per unit
which of the following is not needed to calculate sample mean control charts
according to little's law, which of the following ratios is used to find throughput rate?