In a company assembly line, assembling gear boxes, five workers are assigned tasks who take 10, 8, 6, 9 and 10 minutes respectively. The balance delay for this assembly line is

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UPSC ESE 2017 Paper 1

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Answer 1

Explanation:

Five boxes:

F1 S.C 1.8.20 Pallavi D 1

Cycle time = Max {10, 8, 6, 9, 10}

[Cycle time = 10 minute]

Now,

\({\rm{Life\;efficiency\;}}\left( {{\eta _{line}}} \right) = \frac{{Total\;Work\;Content}}{{No.\;\;of\;Workers\; \times \;Cycle\;Time}}\)

\({\eta _{line}} = \frac{{10\; + \;8 \;+ \;6 \;+ \;9 \;+ \;10}}{{5 \;\times \;10}} = \frac{{43}}{{50}}\)

∴ η_line = 0.86 or 86 %

Balance delay = 100 – 86 %

∴ Balance Delay = 14 %

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