C&A Cleaner uses a five-step process to dry clean garments: Process Description
ID: 351423 • Letter: C
Question
C&A Cleaner uses a five-step process to dry clean garments:
Process
Description
Time (minutes)
# of Workers
Tagging
Attach a number tag on garments for tracking purposes.
1 per garment
1
Stain pretreatment
Identify stains on garments and apply chemicals on the site of a stain.
5 per garment
2
Dry cleaning
Place garments in a large drum machine where water-free solvents are used to remove traces of dirt and oil.
50 per batch
n/a
Spot cleaning
Identify and remove stains that did not come out earlier.
10 per garment
5
Finishing
Press garments and retag them before placing them in bags for pickup.
4 per garment
2
A garment piece weights 1 pound on average. What is the capacity of C&A’s entire dry cleaning process in pounds of garments per hour if the batch size is 10?
O1
O0.5
O0.4
O0.2
Please be as detailed as possible in your explanation. Thanks a bunch!
Process
Description
Time (minutes)
# of Workers
Tagging
Attach a number tag on garments for tracking purposes.
1 per garment
1
Stain pretreatment
Identify stains on garments and apply chemicals on the site of a stain.
5 per garment
2
Dry cleaning
Place garments in a large drum machine where water-free solvents are used to remove traces of dirt and oil.
50 per batch
n/a
Spot cleaning
Identify and remove stains that did not come out earlier.
10 per garment
5
Finishing
Press garments and retag them before placing them in bags for pickup.
4 per garment
2
Explanation / Answer
If a process has just 1 server/worker, capacity = 1/activity time
If a process has m servers/workers, capacity = m/activity time
Capacity of Tagging= 1/1=1unit/min
Capacity of Stain pretreatment= 2/5=0.4 unit/min
Capacity of spot cleaning= 5/10=0.5 unit/min
Capacity of finishing=2/4=0.5 unit/min
Bottleneck is the process with the most taking time capacity,
In this case, tagging takes the most capacity, so it is the bottleneck process.
The capacity of entire process depends on the bottleneck process, hence the capacity of C&A’s entire dry cleaning process is 1.
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