10. Parts arrive at a lathe at a rate of 20 every half hour. Each part must be processed on the lathe for 5 minutes. What is the utilization for the lathe? Utilization arrival rate/effective production rate arrival rate= 40/hr effec. Prod rate: 120/hr 4.1 Principles of Business Results a. 17% b. 30% C. 33% d. 60%

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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10.
1
14.
19.
Parts arrive at a lathe at a rate of 20 every half hour. Each part must be
processed on the lathe for 5 minutes. What is the utilization for the lathe?
Utilization arrival rate/effective production rate arrival rate= 40/hr effec. Prod
rate: 120/hr
4.1 Principles of Business Results
a 17%
b. 30%
c. 33%
d. 60%
What is the shift capacity of a machine with the following characteristics: 4.1
Principles of Business Results
.
Part processing time = 70 seconds
Cutting tool has to be replaced every 35 pieces and it takes 30 seconds to
replace the tool
The machine can operate 27,000 seconds per shift
Formula: operational time per shift/(process time + set-up time/interval)
27,000/ (70+30/35)
a. 381.04 pcs
b. 385.71 pcs
c. 379.39 pcs
d. 270.00 pcs
For a process that has total lead-time of 8 hours and value added time of 33
minutes, what is the Process Cycle Efficiency? Formula: VA time/Total Lead
time 2.1.2 Identifying & Elimination of barriers to flow
a. 24.2%
b. 6.9%
c. 68.8%
d. 14.5%
L
0
Transcribed Image Text:10. 1 14. 19. Parts arrive at a lathe at a rate of 20 every half hour. Each part must be processed on the lathe for 5 minutes. What is the utilization for the lathe? Utilization arrival rate/effective production rate arrival rate= 40/hr effec. Prod rate: 120/hr 4.1 Principles of Business Results a 17% b. 30% c. 33% d. 60% What is the shift capacity of a machine with the following characteristics: 4.1 Principles of Business Results . Part processing time = 70 seconds Cutting tool has to be replaced every 35 pieces and it takes 30 seconds to replace the tool The machine can operate 27,000 seconds per shift Formula: operational time per shift/(process time + set-up time/interval) 27,000/ (70+30/35) a. 381.04 pcs b. 385.71 pcs c. 379.39 pcs d. 270.00 pcs For a process that has total lead-time of 8 hours and value added time of 33 minutes, what is the Process Cycle Efficiency? Formula: VA time/Total Lead time 2.1.2 Identifying & Elimination of barriers to flow a. 24.2% b. 6.9% c. 68.8% d. 14.5% L 0
25. If it takes 85 seconds to assemble a part and the customer needs a part every 17
seconds, how many operators are needed to staff the work cell that builds the
part? 3.2.2.7 Res Deploy
a. 5
b. 0.2
c. 1
d. Can't determine it from the information given
Transcribed Image Text:25. If it takes 85 seconds to assemble a part and the customer needs a part every 17 seconds, how many operators are needed to staff the work cell that builds the part? 3.2.2.7 Res Deploy a. 5 b. 0.2 c. 1 d. Can't determine it from the information given
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