please answer all parts within 30 minutes. else negative ratings. The following tasks must be performed on anassembly line in the sequence and times specified.TaskTask Time (seconds)Tasks That MustPrecedeA5035C25AD45CECF25DG15EH30В, G|25F, Ha) Draw the precedence diagram.b) What is the cycle time to meet a forecasteddemand of 400 units per eight-hour day?c) Balance the line to produce 400 units per day.20

First I would prepare the precedence Diagram, The table data includes Task id, time for each task…

Answered: a) Draw the precedence diagram. b) What…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 21P

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The following table details the tasks required for Indiana-based Frank Pianki Industries to manufacture a fully portable industrial vacuum cleaner. The times in the table are in minutes. Demand forecasts indicate a need to operate with a cycle time of 11 minutes. Activity Activity Description Performance Time (mins) Predecessors A Attach wheels to tub 5.0 − B Attach motor to lid 1.5 − C Attach battery pack 2.8 B D Attach safety cutoff 4.0 C E Attach filters 3.0 B F Attach lid to tub 2.0 A, E G Assemble attachments 3.0 − H Function test 3.7 D, F, G I Final inspection 2.0 H J Packing 2.0 I a-b) One of the possible assignment of tasks to workstations is shown correctly in…
What is a precedence diagramand what are its various components? Briefly explain.
A time study involving the preparation of hamburgers at Bill’s fast-food restaurant used the snap-back method to obtain the data (in minutes) shown below. Allowances typically constitute 15% of normal time. The schedule calls for 300 hamburgers to be prepared during the lunch rush. If each part-time employee works 190 minutes per day, how many employees will be needed? Observation Work Element 1 2 3 4 5 t F RF NT 1. Prepare Patty 0.45 0.41 0.50 0.48 0.36 1 0.9 2. Cook First side 0.85 0.81 0.77 0.89 0.83 1 1.2 3. Flip, press, and cook the other side 0.60 0.55 0.59 0.58 0.63 1 1.2 4. Assemble 0.31 0.24 0.27 0.26 0.32 1 1.0 Show work
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The following table details the tasks required forIndiana-based Frank Pianki Industries to manufacture a fullyportable industrial vacuum cleaner. The times in the table are inminutes. Demand forecasts indicate a need to operate with a cycletime of 10 minutes.ACTIVITY ACTIVITY DESCRIPTION IMMEDIATEPREDECESSORS TIMEA Attach wheels to tub — 5B Attach motor to lid — 1.5C Attach battery pack B 3D Attach safety cutoff C 4E Attach fi lters B 3F Attach lid to tub A, E 2G Assemble attachments — 3H Function test D, F, G 3.5I Final inspection H 2J Packing I 2a) Draw the appropriate precedence diagram for this productionline.b) Assign tasks to workstations and determine how much idletime is present each cycle.c) Discuss how this balance could be improved to 100%.d) What is the theoretical minimum number of workstations?
Tabard Industries forecasted the following demand for one of its most profitable products for the next 8 weeks: 120, 120, 120, 100, 100, 100, 80, and 80 units. The booked customer orders for this product, starting in week 1 are: 100, 80, 60, 40, 10, 10, 0, and 0 units. The current on-hand inventory is 150 units, the order quantity is 200 units, and the lead time is one week.a. Develop a MPS for this product.b. The marketing department revised its forecast. Starting with week 1, the new forecasts are: 120, 120, 120, 150, 150, 150, 100, and 100 units. Assuming that the prospective MPS you developed in part (a) does not change, prepare a revised MPS record. Comment on the situation that Tabard now faces.c. Returning to the original forecasted demand level and the MPS record you developed in part (a), assume that marketing accepted a new customer order for 200 units in week 2, and thereby booked orders in week 2 is now 280 units. Assuming that the prospective MPS you developed in part (a)…
Case: "What am I Doing Wrong?" Susan Johnson, one of the supervisors in the business office, seemed always to be extra busy but never “caught up”. Frustrated with her never diminishing workload and tired of staying in hours of late nearly every day, she spent two evenings reading up on planning and priorities and decided to try to plan the next day's activities at the finish of each work day. She came to the office the following Monday with her day planned out to the last minute. She had created a list of everything she needed to get done that day, including the following: Complete an overdue report Write two performance appraisals due that day Develop the agenda for the following day’s staff meeting, and Prepare for a new employee orientation. It would be a tight fit for an 8-hour day, but she believes she could do it if she remained focused. Susan got off to a good start by finishing the report earlier than she thought she would and turned her attention to the performance…
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Create an AOA diagram based on the information Task A, duration 6, dependent on noneTask B, duration 5, dependent on noneTask C, duration 3, dependent on noneTask D, duration 12, dependent on Task B and Task C Task E, duration 2, dependent on Task ATask F, duration 5, dependent on Task BTask G, duration 1, dependent on Task BTask H, duration 9, dependent on Task E and Task FTask I, duration 7, dependent on Task GTask J, duration 7, dependent on Task HTask K, duration 3, dependent on Task ITask L, duration 5, dependent on Task D
A #2 pencil (P) is made from a wood subassembly (WS), a band (B) to hold the eraser on and an eraser (E). The wood subassembly is made from 2 wood halves (WH) and a piece of lead (L), the wood halves are made from wood blanks (WB). (For this question we will ignore the need for glue and paint.) The lead times for each of these are given below Lead Time (Weeks) P 2 WS 4 B 6 E 2 WH 2 L 2 WB 1 If nothing is in inventory (that is, all on hand quantities are equal to zero), and it is now the beginning of period 20, then when is the earliest that we can promise to ship No. 2 pencils?
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a) Draw the precedence diagram. b) What is the cycle time to meet a forecasted demand of 400 units per eight-hour day? c) Balance the line to produce 400 units per day.