An assembly line is to operate eight hours per day with a desired output of 240 units per day. The following table contains information on this product's task times and precedence relationships: TASK А ABCDEFGI TASK TIME (SECONDS) 60 80 50 20 40 80 60 40 IMMEDIATE PREDECESSOR A A A B, C C, D E, F G

An assembly line is to operate eight hours per day with a desired output of 240 units per day. The following table contains information on this product's task times and precedence relationships: TASK А ABCDEFGI TASK TIME (SECONDS) 60 80 50 20 40 80 60 40 IMMEDIATE PREDECESSOR A A A B, C C, D E, F G

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter4: Linear Programming Models

Section: Chapter Questions

Problem 111P

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An assembly line is to be designed to operate 13 hours per day and supply a steady demand of 325 units per day. Here are the tasks and their performance times: TASK PRECEDINGTASKS PERFORMANCE TIME (SECONDS) TASK PRECEDINGTASKS PERFORMANCETIME (SECONDS) a — 48 g d 43 b — 58 h e 38 c — 73 i f 23 d a 63 j g 33 e b 88 k h, i 53 f c 23 l j, k 67 A) What is the efficiency of your line balance? B) Suppose demand increases by 10 percent. How would you react to this? Assume that you can operate only 13 hours per day in regular time. (Round your answers to the nearest whole number.)
Why is it more efficient for the work cells to prepare “modules” and deliver them to the assembly line thanit would be to produce the component (e.g., interior upholstery) on the line?
Dave Grubbs of Grubbs Auto Body has ﬁve cars waiting for Economy Detailing. An Economy Detailing consists of a wash and then a hand wax. Cars cannot be waxed until they are washed. ROUND UP (39/5) & (39/10). Wash (hours) Wax (hours) (J)aguar 39/5 5 (C)adillac 5 3 (F)ord 1 39/10 (H)onda 2 1 (L)exus 4 4 What schedule produces the shortest time span in which these orders can be completed? Sequence: ____ , _____ , _____ , ______ , ______ Create a Gantt chart for the optimal sequence (shortest time span). How many hours does it take to complete the ﬁve orders? For the schedule in question “a”, how many hours is the waxing task idle? When will Dave ﬁnish the Cadillac? What is the average order completion time?
10 principles of Osborne and gaebler that define NPM as listed above and briefly explain each of them in your own words
Task: Draw a BPMN diagram for the financial workflow business process illustrated on pages 133-134 in Chapter 5 (pictures uploaded).
Kid’s World sells outdoor play equipment for children. Oneof its most popular items is a 5-foot by 7-foot wooden sand-box shown below. General assembly instructions follow.Assembly Instructions: The wood pieces for the sand-box are ordered precut and treated. Kid’s World sands thewood, drills several holes in each piece as required for as-sembly, and coats each piece with 2 ounces of water sealer.The sides are then assembled one corner at a time by at-taching a 1-foot wood strip cater-corner between a5-foot and 7-foot side. Four bolts are inserted through thepredrilled holes and secured with nuts. After the left andright corners of the sandbox have been assembled, the twopieces are joined in a similar manner to form the box as-sembly. A triangular-shaped wooden seat is attached toeach corner of the box assembly with four flat-headed nailsfor each seat. The sandbox is now complete.Construct a multilevel bill of material for the sandbox.
The following table shows the process times in minutes (or minutes/unit - how many minutes to process one unit) of a six-station serial production line (1-2-3-4-5-6). Station 1 2 3 4 5 6 Which station(s) is (are) the bottleneck(s)? Station 2 Station 5 Stations 3 and 4 Stations 2 and 5 Process Time (minutes/unit) 8 11 7 7 11 4
The trim line at PW is a small subassembly line that, alongwith other such lines, feeds int1, o the final chassis line.The entire assembly line, which consists of more than 900workstations, is to make PW’s new E cars. The trim line itselfinvolves only 13 work elements and must handle 20 cars perhour. Work-element data are as follows:Work Element Time (Sec) Immediate Predecessor(s)A 2.4 NoneB 0.5 NoneC 2.1 NoneD 1.8 CE 1.1 BF 0.9 A G 2 AH 0.7 FI 0.7 DJ 1.8 H, EK 1.3 JL 1.9 GM 1.1 L, I, Ka. Draw a precedence diagram.b. What cycle time (in minutes) results in the desired outputrate?c. What is the theoretical minimum number of stations?d. Use the longest work element decision rule to balance theline and calculate the efficiency of your solution.e. Use the most followers work element decision rule tobalance the line and calculate the efficiency of yoursolution.
There are six wires which need to be attached to a circuit board. A robotic device will attach the wires. The wires can be attached in any order, and the production manager wishes to determine which order would be fastest for the robot to use. Use the multiplication rule of counting to determine the number of possible sequences of assembly that must be tested. (Hint: There are six choices for the first wire, five for the second wire, four for the third wire, etc.)
6-38. Decompose each of the core processes in PE Figure 6-2 and draw a new DFD for each core process.
An assembly line is to be designed to operate 7.5 hours per day and supply a steady demand of 300 units per day. a)assign tasks to workstations using the longest operating time b)suppose demand increase by 10%.how would you react to this?assume you can operatee only 7.5 hours per day TASK PRECEDING TASKS PERFORMANCE TIME(seconds) a - 70 b - 40 c - 45 d a 10 e b 30 f c 20 g d 60 h e 50 i f 15 j g 25 k h,i 20 l j,k 25
A process has 10 steps with yields Y1 Y2 Y3 Y4 Y5 Y6 Y7 Y8 Y9 Y10 0.82 0.81 0.85 0.78 0.87 0.80 0.88 0.83 0.89 0.90 Create a table that shows operation step yields and cumulative rolled throughput yields. Determine the overall process rolled throughput yield. Plot the results. Describe manufacturing, business process, and/or Six Sigma project situations for the origination of this data. Include example operation steps to monitor. Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.