A milling department has 10 machines. Each operates an average of eight hours before requiringadjustment, which takes an average of two hours. While running, each machine can produce 40pieces an hour.a. With one adjuster, what is the net average hourly output per machine?b. If machine downtime cost is $80 per hour and adjuster cost is $30 per hour, how many adjusters would be optimal?

A milling department has 10 machines. Each operates an average of eight hours before requiringadjustment, which takes an average of two hours. While running, each machine can produce 40pieces an hour.a. With one adjuster, what is the net average hourly output per machine?b. If machine downtime cost is $80 per hour and adjuster cost is $30 per hour, how many adjusters would be optimal?

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section12.5: Analytic Steady-state Queueing Models

Problem 26P

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A milling department has 10 machines. Each operates an average of eight hours before requiring adjustment, which takes an average of 3.43 hours. While running, each machine can produce 50 pieces an hour. Use Table 1, Table 2 and Table 3. a. With one adjuster, what is the net average hourly output per machine? (Round your answer to 1 decimal place.) Number of Pieces ?? per machine b. If machine downtime cost is $75 per hour and adjuster cost is $31 per hour, how many adjusters would be optimal? Multiple Choice 1 2 3 4 5
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A company producing a standard line and a deluxe line of dishwashers has the following time requirements (in minutes) in departments where either model can be processed. Standard Deluxe Stamping 3 6 Motor Installation 10 10 Wiring 10 15 The standard models contribute $20 each and the deluxe $30 each to profits. Because the company produces other items that share resources used to make the dishwashers, the stamping machine is available only 30 minutes per hour, on average. The motor installation production line has 60 minutes available each hour. There are two lines for wiring, so the time availability is 90 minutes per hour. Write the formulation for this linear program. What are the optimal daily production quantities of each product and the optimal daily profit?
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A company that makes a product recently purchased some new equipment that reduces the labor content of the jobs needed to produce the product. Prior to buying the new equipment, the company used six workers, who produced an average of 90 units per hour. Workers receive P35 per hour and machine cost was P2,000 per hour. With the new equipment, it was possible to transfer one of the workers to another department, and equipment cost increased by P500 per hour while output increased by four units per hour. Compute labor productivity under each system. Use units per worker per hour as the measure of labor productivity.