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Exam 25: Learning Curves

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Question 1

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The first unit of a product took 900 hours to build and the learning curve is 90%.How long will it take to make the first 3 units? (Use Table E.3 in the text. )

A) less than or equal to 2,470 hours
B) from 2,470 to 2,472 hours
C) from 2,472 to 2,475 hours
D) from 2,475 to 2,478 hours
E) from 2,478 to 2,481 hours

F) None of the above
G) A) and E)

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Question 2

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If the learning curve for a process is 100%,then each unit in a series of units will have the same labour requirements.

A) True
B) False

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Question 3

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The arithmetic approach (or successive doubling approach)to learning curve calculations allows us to determine the hours required for any unit.

You are about to undertake manufacture of a labour-intensive electronics component.The first unit took 300 hours.You are not sure whether the learning rate is 70% or 80%.The initial phase of the contract calls for 6 of these components. a.How much time will it take to complete all six at 70% learning? b.How much time will it take to complete all six at 80% learning?

Which of the following statements comparing learning curve rates (L) to improvement rates is true?

In the logarithmic approach formula to compute the time for the Nth unit,TN = T1Nb,the exponent b is the learning curve rate L,expressed as a decimal.

Why do different organizations have different learning curves?

Experience curves are the opposite of learning curves-as one rises,the other falls.

Your firm has a contract to make 20 specialty lenses for night vision equipment.The first one took 40 hours.Learning is expected at the 85% rate.How long will it take to finish all 20 units?

A certain product under development took 200 hours for the production of its 2nd unit and 180 hours for its 4th unit. a.What is the learning rate? b.How much time did the first unit take? c.How much time would the production of the 10th unit take? (Use both the logarithmic and the Table E.3 (in the text)approach.Do the two versions agree?)

Which one of the following statements about learning curves is true?

Which of the following statements regarding the usefulness of learning curves is false?

A manager is trying to estimate the appropriate learning curve for a certain job.The manager notes that the first four units had a total time of 30 minutes.Which learning curve would yield approximately this result if the first unit took 9 minutes? (Use Table E.3 (in the text) cumulative coefficient. )

On an ordinary graph,unit times decrease at a decreasing rate,but on a log-log graph,the learning "curve" appears as a straight line.

Explain how learning curves might be applied in a bid preparation application.

Explain how learning curves might be applied in a scheduling application.

The first unit of production took 10 hours with an 80% learning curve.How long will it take to complete both the first and second units?

To use the table of learning curve coefficients,you must specify the ________ and the ________.

Learning curves are

If the learning rate for a process is 80%,that same process has a 20% ________.