In a ski production center, we are looking at a certain processing line where skis are given the finishing touch to give them sharp edges.
This is done in a 3-step grinding process.
— First, the edges are given a Rough Grinding,
— then a Medium Grinding,
— and then every ski is given an optimal edge with a careful Fine Grinding.
The processing times are:
— Rough Grinding: 5 min/unit
— Medium Grinding: 7 min/unit
— Fine Grinding: 11 min/unit
Please answer the questions below. (Note: We assume unlimited resources and unlimited demand)
1. What is the bottleneck of this processing line?
Rough Grinding
Medium Grinding
Fine Grinding
2. What is the capacity of the medium grinding process in skis/hour? Remember, the processing time for Medium Grinding is 7 min/unit.
(Round to two decimal places. Note the answer is in skis/hour, not skis/minute).
5.45 skis/hour
12.00 skis/hour
8.57 skis/hour
3. What is the resource utilization of the rough grinding process?
The resource capacity at Rough Grinding is 1/5 = 0.2 skis/min = 12 skis/hour.
Resource Utilization = Flow Rate/Resource Capacity
Remember, we have unlimited demand, so our Flow Rate = Process Capacity = Capacity of the bottleneck.
(Round intermediate and final results to two decimal places)
63.58%
100.00%
45.42%
4. What is the resource utilization of the fine grinding process?
(Round intermediate and final results to two decimal places)
63.58%
100.00%
45.42%
