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Exam 7: B: Design of Work Systems

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Question 21

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It took exactly 10 hours to produce the first widget on a 100 percent learning curve.The second widget will take how many hours to produce?

A) 8.0 hours
B) 10.0 hours
C) 12.0 hours
D) A 100 percent learning curve cannot exist.
E) 2 hours

F) C) and E)
G) A) and E)

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Question 22

Multiple Choice

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A job is expected to have a learning curve of 90 percent.The third unit required 16 hours.The twelfth unit should take approximately how many hours?

A) 2
B) 4
C) 7
D) 10
E) 13

F) C) and D)
G) B) and E)

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Question 23

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A company is preparing a bid on a government contract for 40 units of a certain product.The operations manager estimates the assembly time required for the first two units to be 10.4 hours and 8.8 hours,respectively.If the contract is cancelled after the first 20 units,approximately how much of the expected total direct labour will have been expended to that point?

A learning rate of 97% will produce minor decreases in completion times of the first few units.

A company is preparing a bid on a government contract for 40 units of a certain product.The operations manager estimates the assembly time required for the first two units to be 10.4 hours and 8.8 hours,respectively.Approximately how long will it take to produce the 15^th unit?

A learning percentage of 98% implies 2% learning.

A manager wants to analyze the learning curve associated with producing one of his company's products.Accordingly,he has gathered the following data: Approximately how long will it take to produce the tenth unit?

Which one of the following would learning curves probably affect the least?

A 98% learning curve implies an exceptionally rapid rate of improvement.

Learning curves have little relevance for planning or scheduling of routine activities of short duration.

A 77% learning curve will produce relatively minor decreases in completion times of the first few repetitions.

Learning curves cannot be used if the labour time for the first unit is unknown.

In which of the following managerial activities would learning curves probably be the least useful?

A manager is trying to estimate the learning rate for a new job.The first unit took 16 hours,and the fourth unit required about 13 hours.The learning rate is:

Developing work assignments in a job shop in a certain firm has a learning curve of 80 percent.If the second set of assignments takes 12 minutes,determine the length of time required for the following: (i)the fifth set (ii)sets 3,4,and 5 together

According to learning curve theory,for certain kinds of tasks the indirect labour time or cost per unit decreases as the number of units increases.

A manager wants to analyze the learning curve associated with producing one of his company's products.Accordingly,he has gathered the following data: Approximately how long will it take to produce the fifth through tenth units?

An 80 percent learning curve means that with each doubling of units there will be a 20 percent decrease in time per unit.

Unit times for a job exhibit a learning effect.If the 2^nd unit took 30 hours,and the 4^th unit took 21 hours,roughly how many hours would you estimate the 3^rd unit took?

Learning curves are used primarily for mass production applications.