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Exam 7: Work Design and Measurement

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Question 41

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Ergonomics is important for preventing common workplace injuries such as back injuries and repetitive-motion injuries.

A) True
B) False

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Question 42

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What is the observed time (OT) for this task?

A) 80 seconds
B) 84 seconds
C) 160 seconds
D) 240 seconds
E) 400 seconds

F) A) and B)
G) All of the above

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Question 43

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Measured day work refers to an output-based system.

"Time-based systems" compensate employees according to the time the employee has worked and the amount of output they produce.

What is the standard time (ST) for this task if the employee worked at a 20% faster pace than is average and an allowance of 25% of the workday is used?

Many lower level jobs are monotonous and boring.

The methods analysis chart which describes the overall sequence of operations, transportation, storage, delays, and inspection is a:

The normal time in time study is obtained by multiplying the observed time by the performance rating.

A pay system that rewards workers who undergo training that increases their skills is called a "knowledge-based pay system."

In a stopwatch time study, the average time it takes a given worker to perform a task a certain number of times is the:

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

Methods analysis and motion study techniques develop which aspect of jobs?

In a stopwatch time study, the number of cycles that must be timed is a function of:

One important factor that influences productivity is trust between workers and managers.

Work sampling provides both quick and accurate estimates of activity times.

What is the probability that the true proportion of time spent mowing is exactly equal to the sample proportion?

An initial time study resulted in an average observed time of 2.2 minutes per cycle, and a standard deviation of 0.3 minutes per cycle.The performance rating was 1.20.What sample size, including the 20 observations in the initial study, would be necessary to have a confidence of 95.44 percent that the observed time was within 4 percent of the true value?

For purposes of obtaining good time standards using a stopwatch time study, the analyst should try to avoid having the worker discover he or she is being observed.

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

The chart used to focus on busy and idle portions of a work cycle is a: