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Exam 7: Work Design and Measurement

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Question 61

True/False

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A worker-machine chart can help identify nonproductive parts of a process.

A) True
B) False

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Question 62

Multiple Choice

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The manager of Lawn and Garden Services would like to estimate the proportion of her employees' time spent performing various gardening and lawn care activities. She has made 400 random observations of a typical worker, with the following results: What is the most likely true proportion of time spent mowing?

A) 0
B) 0.1
C) 0.2
D) 0.5
E) 1

F) A) and E)
G) B) and E)

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Question 63

Multiple Choice

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Which of the following can affect the ways in which learning curves may be applied?

The methods analysis chart that describes the portions of a work cycle during which an operator and equipment are busy or idle is a:

One therblig is the equivalent of 1 hour of sustained work by one average person.

Which of the following is not characteristic of time-based compensation plans?

A methods and measurements analyst for Timepiece, Inc., needs to develop a time standard for the task of attaching a watch to a wristband. In a preliminary study, he observed one of his workers perform this task five times, with the following results: How many observations should be made if he wants to be 95.44 percent confident that the maximum error in the observed time is 1 second? Assume that the standard deviation of the task time is 5 seconds.

To which worker would learning curves be most applicable?

Learning curves are mostly relevant for complex, new activities that have not been done often.

To which of the following challenges are learning curves important considerations?

Negotiated purchasing results in lower unit costs for smaller quantities.

Determining the number of cycles to observe is an element of:

Methods analysis is more likely to lead to a relatively easy and successful implementation of an improved method if workers have been consulted throughout the process than if the analyst assumed sole responsibility for the development of the improved method.

In calculating standard times, allowance percentages normally would consider all of the following except:

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?

Motivation influences quality and productivity, but not the work environment.

A behavioral approach to job design that increases responsibility for planning and coordinating tasks is job:

A job has an 80 percent learning curve. If the first unit took 40 hours to complete, the fourth unit should take roughly how many hours?

For an 80 percent learning curve, if the first unit requires 10 hours, the second unit will require 8 hours and the third 6.4 hours.

The symbols for operation, storage, transportation, inspection, and delay would usually be found on which type of chart?