OPERATIONS MANAGEMENT LL W/CONNECT CODE
2nd Edition
ISBN: 9781266520037
Author: CACHON
Publisher: MCG CUSTOM
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Question
Chapter 17, Problem 1CQ
Summary Introduction
To determine: Every flow units are served, when capacity exceeds demand. Whether the statement is true or false?
Expert Solution & Answer
Answer to Problem 1CQ
B. False
Explanation of Solution
It is not true that every flow units are served when capacity exceeds demand. In some circumstances, few demands may be lost when capacity is more than the demand.
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11. Leo manages a receiving station for rice. Farmers deliver their loads of rice from 7 am to 7 pm. Leo can process them at a rate of 4.5 tons an hour, and on a heavy day, a total of 96 tons can be expected. The station has room to hold only 15 tons of rice in inventory prior to processing. Once this space is filled, the farmers’ trucks must wait to dump their contents. What is the throughput (flow) rate after 7 pm (in tons/hr)?
[Queuing Theory - Operation Research]
RBMC Industry manufactures a special printing according to customer specifications with respect to the number of sheets the machine can produce per hour. With this, there is a $50 increase in the production rate x. A shop owner is considering buying one of these machines. From his past experiences, the owner estimates that the arrival rate is three per hour and each order averages 500 sheets. Contracts signed by the owner, and the customer says that there will be a penalty of 10$ per late order per hour. It is assumed that the actual production time is exponential.
(a) Formulate the cost model as a function of the production rate x.
(b) Determine the optimal production rate the owner should specify in his purchase of the machine from RBMC. Hint: Get the derivative of the cost function.
Why does a (M/M/2):(GD/5/infinity) queuing system have a steady state regardless of the values of A > 0 and u >
0?
O No further calling unit can enter the system when there are 5 in it.
O A and u are both positive
O The queue is not a Poisson queue.
none of the above
Chapter 17 Solutions
OPERATIONS MANAGEMENT LL W/CONNECT CODE
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