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A time analyst observed a computer part assembly job for which the work methods have just been changed. The job is divided into four work elements. The element times (min) for first four cycles, recorded on a continuous basis, are shown in the following table with a performance rating (RF) for each element. Performance rating % (RF) Element Cycle 1 Cycle 2 Cycle 3 Cycle 4 1 1.38 1.60 1.71 1.49 100 2 0.25 0.35 0.30 0.56 120 0.65 0.58 0.54 0.57 105 4 0.75 0.81 0.74 0.88 90 (a) On the basis of the times observed through four cycles, determine the normal time for the job. (b) Calculate the standard time if there is a fatigue allowance of 15 % and a contingency allowance of 10 %. (c) If a worker is employed on a 5 day, 37.5 hour/week with 1.5 hours per day for breaks, how many workers are needed for a daily production of 1500?

A time analyst observed a computer part assembly job for which the work methods have just been changed. The job is divided into four work elements. The element times (min) for first four cycles, recorded on a continuous basis, are shown in the following table with a performance rating (RF) for each element. Performance rating % (RF) Element Cycle 1 Cycle 2 Cycle 3 Cycle 4 1 1.38 1.60 1.71 1.49 100 2 0.25 0.35 0.30 0.56 120 0.65 0.58 0.54 0.57 105 4 0.75 0.81 0.74 0.88 90 (a) On the basis of the times observed through four cycles, determine the normal time for the job. (b) Calculate the standard time if there is a fatigue allowance of 15 % and a contingency allowance of 10 %. (c) If a worker is employed on a 5 day, 37.5 hour/week with 1.5 hours per day for breaks, how many workers are needed for a daily production of 1500?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A time analyst observed a computer part assembly job for which the work methods have just been changed. The job is divided into four work elements. The element times (min) for first four cycles, recorded on a continuous basis, are shown in the following table with a performance rating (RF) for each element. Performance rating % (RF) Element Cycle 1 Cycle 2 Cycle 3 Cycle 4 1.38 1.60 1.71 1.49 100 2 0.25 0.35 0.30 0.56 120 3 0.65 0.58 0.54 0.57 105 4 0.75 0.81 0.74 0.88 90 (a) On the basis of the times observed through four cycles, determine the normal time for the job. (b) Calculate the standard time if there is a fatigue allowance of 15 % and a contingency allowance of 10%. (c) If a worker is employed on a 5 day, 37.5 hour/week with 1.5 hours per day for breaks, how many workers are needed for a daily production of 1500?
Transcribed Image Text:A time analyst observed a computer part assembly job for which the work methods have just been changed. The job is divided into four work elements. The element times (min) for first four cycles, recorded on a continuous basis, are shown in the following table with a performance rating (RF) for each element. Performance rating % (RF) Element Cycle 1 Cycle 2 Cycle 3 Cycle 4 1.38 1.60 1.71 1.49 100 2 0.25 0.35 0.30 0.56 120 3 0.65 0.58 0.54 0.57 105 4 0.75 0.81 0.74 0.88 90 (a) On the basis of the times observed through four cycles, determine the normal time for the job. (b) Calculate the standard time if there is a fatigue allowance of 15 % and a contingency allowance of 10%. (c) If a worker is employed on a 5 day, 37.5 hour/week with 1.5 hours per day for breaks, how many workers are needed for a daily production of 1500?
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