Question 1 Tailwind, Inc., produces high-quality but expensive training shoes for runners. The Tailwind shoe, which sells for $210, contains both gas- and liquid-filled compartments to provide more stability and better protection against knee, foot, and back injuries. Manufacturing the shoes requires 10 separate tasks. There are 400 minutes available for manufacturing the shoes in the plant each day. Daily demand is 60. The information for the tasks is as follows: Performance Time Task Must Follow Task (in minutes) This Task C, D |ABBAFG -324-325- Н E, H ABCDEFGHI- 25 32

Question 1 Tailwind, Inc., produces high-quality but expensive training shoes for runners. The Tailwind shoe, which sells for $210, contains both gas- and liquid-filled compartments to provide more stability and better protection against knee, foot, and back injuries. Manufacturing the shoes requires 10 separate tasks. There are 400 minutes available for manufacturing the shoes in the plant each day. Daily demand is 60. The information for the tasks is as follows: Performance Time Task Must Follow Task (in minutes) This Task C, D |ABBAFG -324-325- Н E, H ABCDEFGHI- 25 32

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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As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 260 units per 8-hour day. Task times and precedence relationships are as follows: Duration (minutes) e.1 e.6 e.3 Immediate Predecessor Task a b e.5 1.6 1.5 1.7 b. Determine the minimum cycle time, the maximum cycle time, and the calculated cycle time. (Round all answers up to one decimal point. For example, round 1.83 up to 1.9.) Minimum cycle time minutes per unit Maximum cycle time minutes per unit Calculated cycle time 1.9 minutes per unit Compute the percent idle time and percent efficiency for the assignment in part d. Note: if the calculated cycle time and the actual bottleneck station time are different, use the actual bottleneck time in your calculations. (Round your answers to 2 decimal places) Idle percentage Eficiency
Table : Task time pizza assembly Task Description Roll Dough Add pizza source Sprinkle cheese A B с D E F G H Task time (sec) Preceding task 60 30 35 25 Add sausage Add Pepperoni 35 Add Mushrooms 22 Shrink-wrap pizza 15 Add label 23 A B с с с D,E,F G Total time 245 sec Table above shows the task time and precedence relationships for a pizza assembly. The product time per day is 8 hours and the production schedule requires 300 pizzas per day by the assembly time. 1. Draw the precedence diagram of the operation. 2. Determine the cycle time of the line. 3. Calculate the minimum number of workstations for this operation. 4. Construct the line layout of the operations following by rules below: 5. Longest task time rule. 6. Number of following rules. 7. Compute the resulting efficiency and balance of delay percentages. 8. If a worker is paid RM35 per day, compute the cost of idleness per week (assuming a work 6-day week).
What feature of manufacturing planning and control systems operates under the premise that the planned work input to a work center should never exceed the planned work output?
As part of a major plant renovation project, the industrial engineering department has been asked to balance a revised assembly operation to achieve an output of 230 units per 8-hour day. Task times and precedence relationships are as follows: Duration Immediate Task (minutes) Predecessor a 0.2 b 0.6 a 0.4 b d 0.7 e 1.6 f 1.8 e f Do each of the following: a. Determine the number of followers for each task. Number of tasks following task a Number of tasks following task b Number of tasks following task c Number of tasks following task d Number of tasks foll task e Number of tasks following task f Number of tasks following task g
Regarding section D with assigning the workstations: How would Task F go first if it could not be completed with Task D? Usint LOT. regardless of the time each took, doesn't one still have to bare in mind the predecessors? I would assume Tasks A and B would be Workstation 1, considering that 45 plus 20 seconds is less than the cycle time and factoring in the fact that C only requires A to be completed, hence why the workstation should start at A followed by C.
Use the given tasks and predecessors for this problem. The required cycle time is 25 seconds and tasks are assigned to workstations using the "longest task time" rule to break any ties. If task A is assigned to Workstation 1, what is the next task that should be assigned to Workstation 1? (slide 28) Task Time (sec) Predecessor(s) A 20 none B. 30 C 10 D. 20 В. С Task B O None. Workstation 1 should only have Task A assigned. O Task C O Task D
5. Draw the Gantt Chart of M1, M2, M3. Due dates of the jobs are 16,14,10,8 in order. Use "FIFO" Processing Time (min) Routing Process and Machine Number OP-1 OP-3 OP-1 OP-2 OP-3 Job-1 4/M1 3/M2 2/M3 Job-2 1/M2 4/M1 4/M3 M1 M3 M2 M3 Job-3 3/M3 2/M2 3/M1 Job-4 3/M2 3/M3 1/M1 M3 M1 M2 M1 Job-1 Job-2 Job-3 Job-4 OP-2 M2 M1 M2 M3
Evan Schwartz has six jobs waiting to be processedthrough his machine. Processing time (in days) and duedate information for each job are as follows:Sequence the jobs by FCFS, SPT, SLACK, and DDATE.Calculate the mean flow time and mean tardiness of the sixjobs under each sequencing rule. Which rule would yourecommend?
This is when work is scheduled in reverse from a future due date, to tell the time original work must be started.
Florida Southwestern State College has decided to implement a new registration system that will allow students to register online as well as in person. As an IT manager, you decide to set up a JAD session to help define the requirements for a new system. The FSW organization is fairly typical, with an administrative staff that includes a registrar, student support and service team, a business office, an IT group, and a number of academic departments. Using this information, you start work on a plan to carry out the JAD session. Who would you invite to the session, and why? What would be your agenda for the session, and what would take place at each stage of the session?
Job times which includes processing and set up times are shown below: Job Job Time (brs) Due Date (bs) 15 24 20 AMUO А B C 12 6 14 3 7 D B Using FCFS, determine the average tardiness 6
Given the following information, assign tasks to work stations using the most followers rule. Assume the cycle time is 60 seconds and the minimum number of workstations is 3. Submit for each workstation (1,2,3,4 etc.), the tasks assigned in order of assignment, the idle time for each work station and the total idle time. (It will help for you to make the diagram but you are not required to submit the diagram) Task A D w Immediate Predecessor D CE Task Time (seconds) 35 50 20 10 25 40