Under ideal conditions, a service bay at a Fast Lube can serve 7 cars per hour The effective capacity of a Fast Lube service bay is 60 cars per hour, with efficiencyknown to be 0 85The minimum number of service bays Fast Lube needs to achieve an anticipated production of 150 cars per 8-hour day =service bays (enter your responserounded up to the next whole number)

Production is the process of developing finished products using the raw resources and materials for…

Answered: Under ideal conditions, a service bay…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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Under ideal conditions, a service bay at a FastLube can serve 6 cars per hour. The effective capacity and efficiency of a Fast Lube service bay are known to be 5.5 and0.880, respectively. What is the minimum number of servicebays Fast Lube needs to achieve an anticipated servicing of200 cars per 8-hour day?
Bectol, Inc. is building a dam. A total of 10 million cuft of dirt is needed to construct the dam. A bulldozer is usedto collect dirt for the dam. Then the dirt is moved via dumpersto the dam site. Only one bulldozer is available, and it rentsfor $100 per hour. Bectol can rent, at $40 per hour, as manydumpers as desired. Each dumper can hold 1,000 cu ft ofdirt. It takes an average of 12 minutes for the bulldozer toload a dumper with dirt, and each dumper an average of fiveminutes to deliver the dirt to the dam and return to the bulldozer. Making appropriate assumptions about exponen-tiality, determine how Bectol can minimize the total expected cost of moving the dirt needed to build the dam.
5. Under ideal conditions, a service bay at a Fast Lube can serve 8 cars per hour. The effective capacity of a Fast Lube service bay is 5.7 cars per hour, with efficiency known to be 0.85. The minimum number of service bays Fast Lube needs to achieve an anticipated production of 150 cars per 8-hour day = 3.93.9 service bays ( __________ ).
as the staff director of a new hospital, you are planning to hire cardiologists rehabilitation and infectious diseased specialists. according to recent data, each cardiology case averages $ 12,000 in revenue, each physical rehabilitation case $19,000, and each infectious diseased case, $14,000. you judge that each specialist you employed will expand the hospital caseload by about 10 patients per week. You already have 3 cardiologists and rehabilitation specialists bring in one government researched per year, while each infectious diseased specialist brings in three. Your board of directors would like your weekly revenue to be as large as possible. How many of each kind of specialist should you hire? a. State the LP in standard form, defining all variables? b. Solve the LP with the online solver and attach it. In a complete sentence, state your solution to the problem, How many of each kind of specialist should you hire? c. let's say you completely misjudged the number of patients each…
Effective capacity is:a) the capacity a firm expects to achieve, given the currentoperating constraints.b) the percentage of design capacity actually achieved.c) the percentage of capacity actually achieved.d) actual output.e) efficiency.
Suppose that Baldwin will increase its automation to 6.5 this year. Each new unit of automation costs $4 per unit of capacity. An additional $4 per point of automation applies to any new capacity. How much will this investment in automation cost?$24,500,000$28,000,000$56,000,000$49,000,000
A toy firm produces drums sequentially on three machines—A, B, and C—with cycle times of 3, 4, and 6 minutes, respectively. (a) Determine the optimum efficiency and output rates for adding one, two, ... , six more machines. (b) assume now that two identical lines are operating, each with machines A, B, and C. If new machines can be shared between the lines, how should one, two and then three new machines be added What are the resulting efficiencies and outputs of the two lines? is it always best to equally share extra machines between the two lines?
A Printed Circuit Board (PCB) machine installs integrated circuits onto a board. Before starting to produce a board, the PCB machine requires a 16-minute setup. Once in production, the PCB machine requires only 0.19 minute per board. a. Currently, the PCB machine produces 525 boards between setups. Given this operating process, what is the capacity of the PCB machine (in boards per min)? b. Currently, the PCB machine produces 525 boards between setups. Given this operating process, what is the utilization of the PCB machine? c. Say the PCB machine produces 400 boards s between setups and demand is 2 boards per minute. Given the operating process, what is the avergae inventory of boards anf the PCB machine? d. Demand for boards occurs at the rate of 2 boards per minute. What is the smallest batch size such that the PCB machine does not constrain the flow rate through the process?
Knott’s Industries manufactures standard and super premium backyard swing sets. Currently it has four identical swing-set-making machines, which are operated 250 days per year and 8 hours each day. A capacity cushion of 20 percent is desired. The following information is also known: Standard Model Super PremiumModel Annual Demand Standard Processing Time Average Lot Size Standard Setup Time per Lot 20,000 7 min 50 30 min 10,000 20 min 30 45 min a. Does Knott’s have sufficient capacity to meet annual demand?b. If Knott’s was able to reduce the setup time for the Super Premium Model from 45 minutes to 30 minutes, would there be enough current capacity to produce 20,000 units of each type of swing set?
Consider an E2/M/1/4 model with the arrival rate of 3 jobs per hour and a service rate of 4 jobs per hour. Note that this system has a capacity of 4 jobs Compute the steady-state probabilities and the system performance measures of utilization, CTs, WIPs, and throughput.
This problem illustrates balking. The Oryo Cookie IceCream Shop in Dunkirk Square has three competitors. Sincepeople don’t like to wait in long lines for ice cream, thearrival rate to the Oryo Cookie Ice Cream Shop depends onthe number of people in the shop. More specifically, whilej 4 customers are present in the Oryo shop, customersarrive at a rate of (20 5j) customers per hour. If more than4 people are in the Oryo shop, the arrival rate is zero. Foreach customer, revenues less raw material costs are 50¢.Each server is paid $3 per hour. A server can serve anaverage of 10 customers per hour. To maximize expectedprofits (revenues less raw material and labor costs), howmany servers should Oryo hire? Assume that interarrivaland service times are exponential.
Which is most likely true about theory of constraints? a. The theory of constraints does not apply to companies with multiple products because of capacity measurement difficulties. b. In any profit-seeking company, there must be at least one constraint. c. Constraints or bottlenecks stop organizations from selling an infinite number of units or services. d. b & c e. All of the above f. None of the above

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