Question

In: Economics

The process design team at a manufacturer has broken an assembly process into eight basic steps,...

The process design team at a manufacturer has broken an assembly process into eight basic steps, each with a required time, and predecessor as shown in the table. They work a 7 hour day and want to produce at a rate of 360 units per day. What should their cycle time be?

Task Time (sec) Predecessor

A 45 --

B 50 A

C 40 A

D 55 B, C

E 40 D

F 65 D

G 25 E

H 35 F, G

Options

A: 52 seconds

B: 25 seconds

C: 70 seconds

D: 80 seconds

Solutions

Expert Solution

Answer - (C) 70 seconds
Explanation - Cycle time = Average time between completion of units

If for 360 units, 7 hours are required in a day,
Therefore for 1 unit, average throughput rate = 7/360 = 1.167 minutes
Hence, cycle time = 70 seconds (1.167 * 60) on average.


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