5. Flo's Quick-Lube performs fast oil changes (A) and checks for tire pressure and wear (B) andbrakes and alignment (C) according to the process flow indicated by the diagram below. Eachincoming car is put on a jack while one technician performs task A and another simultaneouslyperforms task B and a third performs task C (which must follow task B due to the limited spaceunder the vehicle on the jack). The server for task A takes on average 3 minutes to process a job,the server for task B takes on average 2 minutes to process a job, and the server for task C takeson average 2 minutes to process a job. Server A can be operated in parallel with Servers B and C.All processing times are random and exponentially distributed, and jobs are allowed to queue infront of each server. (You can assume that the number of jacks is sufficient to allow any length ofqueue.)(a)ANDBACFigure 1: Flo's Process FlowWhat is the capacity of the process (in orders/minute)?

The time taken to finish a unit being worked on parallel workstation can be computed by finding the…

Answered: 5. Flo's Quick-Lube performs fast oil…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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. Bill's Barbershop has two barbers available to cut customers' hair. Both barbers provide roughly the same experience and skill, but one is just a little bit slower than the other. The process flow in Figure 6.90 shows that all customers go through Steps B1 and B2 and then can be served at either of the two barbers at Step B3. The process ends for all customers at Step B4. The numbers in parentheses indicate the minutes it takes that activity to process a customer. Figure 6.9 Process Flow for Bill's Barbershop B1 (10) B2 B3-a (15) B3-b (10) B4 (9) 1. On average, how long does it take a customer to complete this process? ›. What single activity is the bottleneck for the entire process? c. How many customers can this process serve in an hour?
A campus deli serves 325 customers over its busy lunch period from 11:30 a.m. to 1:30 p.m. A quick count of the number of customers waiting in line and being served by the sandwich makers shows that an average of 5 customers are in process at any point in time. What is the average amount of time that a customer spends in process? Instructions: Round your final answer to 1 decimal place. Average amount of time minutes
Hammond Inc. has analyzed the setup time on its computer-controlled lathe. The setup requires changing the type of fixture that holds a part. The average setup time has been 135 minutes, consisting of the following steps: Step Time (in minutes) Turn off machine and remove fixture from lathe 13 Go to tool room with fixture 15 Record replacement of fixture to tool room 18 Return to lathe 20 Clean lathe 17 Return to tool room 20 Record withdrawal of new fixture from tool room 12 Return to lathe 15 Install new fixture and turn on machine 8 Total setup time 138 Why should management be concerned about improving setup time? What do you recommend to Hammond Inc. for improving setup time? How much time would be required for a setup, using your suggestion in (b)?
One of the chair lifts at a ski resort unloads 1,900 skiers per hour at the top of the slope. The ride from the bottom to the top takes 19 minutes. Instruction: Do not round your intermediate and round final answer to nearest integer. How many skiers are riding on the lift at any given time? 603 skiers
A work system has five serial stations that have process times of 5, 9, 4, 9, and 8. To complete processing, a unit needs to go through all stations. What is the process cycle time of the system?
A production process at Kenneth Day Manufacturing is shown in the figure below. The drilling operation occurs separately from, and simultaneously with, the sawing and sanding, which are independent sequential operations. A product needs to go through only one of the three assembly operations (the operations are in parallel). 2.1 units/hr Sawing 5 units/hr Sanding Drilling 5 units/hr Welding 2.5 units/hr a) Sawing is the bottleneck. b) The bottleneck time is 28.57 minutes per unit (round your response to two decimal places). c) The throughput time of the overall system is 89.58 minutes (round your response to two decimal places). Assembly Q 0.8 units/hr Assembly 0.8 units/hr Assembly 0.8 units/hr
Both the average flow rate and average flow time of a process are increased by 50%, what will be the percentage change in the average number of units (inventory) in the process (a) 125% (b) 50% (c) Cannot be determined (d) 225%
Define a process in general. Apply this definition in detail to a university, a grocery store, and a beer brewing company.
Edward is working in fortune 100 company and he is assigned a task to calculate the time efficiency of the enquiry process that is recently implemented in their company. Given rework probability is 0.2. Help Edward in finding the overall cycle time. response approved Register ministerial inquiry Investigate ministerial inquiry Prepare ministerial response Review ministerial response Ministerial inquiry receivéd Ministerial correspondence addressed response not Approved Cycle time | Processing time 2 days Task Register ministerial enquiry Investigate ministerial enquiry 8 days Prepare ministerial response Review ministerial response 30 min 12 h 4 days 4 days 4h 2h
Moving employees from one job to another in a predetermined way is called Question 13 options: job rotation job reengineering work mapping job enrichment
Use MOST to determine the number of TMUs associated with each of the following scenarios: A line supervisor grabs a job order (paper) within reach, walks 10 steps, then lays the order on top of a stack of other orders. The supervisor then returns to her original position. A B G A B P A
Recently, some operations management experts have begun insisting that simply maximizing process velocity, which actually means minimizing the time it takes to process something through the system, is the single most important measure for improving a process. Can you think of a situation in which this might not be true?

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