The forecast of demand for a product is expected to be 10,000 per year. The prod
ID: 462449 • Letter: T
Question
The forecast of demand for a product is expected to be 10,000 per year. The product requires 16 work elements as shown in the following table. Technical consideration procedures elements E & F to be processed together. Similarly, elements H and L cannot be processed together. If the normal working week is 35 hours and 44 working weeks in a year, select optimum number of workstations to meet the demand. Draw the working balance chart for the process assuming one person per work station.
Work element
Work content (minutes)
Work element
Work content (minutes)
Precedes A 3.6 E B 2.5 F C 2.7 G D 2.6 H,J E 1.6 K F 1.4 K G 2.4 L H 3.3 M J 1.7 N K 3.4 S L 2.8 P M 1.9 R N 2.4 R P 3.6 S R 2.8 S S 1.3 MExplanation / Answer
Total Work station required 16
The demand of the product to be 10000 a year averaging10000/12= 833 in a month
Element cannot be clubbed together they are E and F and Hand L
Working week Hours is 35 Hours that is 7hrs a day assuming Saturday and Sunday as off days.
In an year one works for 44 Weeks that is 44*35(Number of work hours in a week)=1,540 Hrs in a year work.
The 16 Workstations for 1,540 Hrs of work in a year
Each work station will have 96.25 Hrs of work in a year ie 1540/16=96.25 Hrs in a year.
1 person will have 96.25 hrs of usage in a year for 16 persons it will have 1540hrs
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