Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Chapter 9, Problem 26P
a)
Summary Introduction
To draw: The precedence diagram of the operation.
b)
Summary Introduction
To assign: The various tasks to workstations.
c)
Summary Introduction
To determine: The overall actual efficiency of the assembly line.
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Improve the given string diagram by rearranging the work station.
Please answer question d, e, f
a. Draw a precedence diagram.b. What cycle time would provide the desired output? c. What is the maximum possible output of the line? d. What is the theoretical minimum number of workstations using the cycle time computed in” b “above? e. Assign tasks to workstations using the cycle time in “b” above. f. Calculate the efficiency and idle time percentage of the line.
Management wants to design an assembly line that will turn out 800 videotapes per day. There will be eight working hours in each day. The industrial engineering staff has assembled the information below: A) Determine the maximum and minimum cycle times.B) Determine the optimum cycle time.C) What is the minimum number of stations needed?D) Draw the precedence diagram.E) Assign tasks to stations in order of most following tasks first. Submit an Excel file based on Chapter 6 Excel Template to indicate your computation.
Chapter 9 Solutions
Principles Of Operations Management
Ch. 9 - Prob. 1EDCh. 9 - Prob. 1DQCh. 9 - Prob. 2DQCh. 9 - Prob. 3DQCh. 9 - Prob. 4DQCh. 9 - Prob. 5DQCh. 9 - Prob. 6DQCh. 9 - Prob. 7DQCh. 9 - Prob. 8DQCh. 9 - Prob. 9DQ
Ch. 9 - Prob. 10DQCh. 9 - Prob. 11DQCh. 9 - Prob. 12DQCh. 9 - Prob. 13DQCh. 9 - Prob. 14DQCh. 9 - Prob. 15DQCh. 9 - Prob. 16DQCh. 9 - Prob. 17DQCh. 9 - Prob. 18DQCh. 9 - Prob. 1PCh. 9 - Prob. 2PCh. 9 - Prob. 3PCh. 9 - Roy Creasey Enterprises, a machine shop, is...Ch. 9 - Adam Munson Manufacturing, in Gainesville,...Ch. 9 - Prob. 6PCh. 9 - Prob. 7PCh. 9 - Prob. 8PCh. 9 - Prob. 9PCh. 9 - Six processes are to be laid out in six areas...Ch. 9 - Stanford Rosenberg Computing wants to establish an...Ch. 9 - Illinois Furniture, Inc., produces all types of...Ch. 9 - Prob. 14PCh. 9 - The Action Toy Company has decided to manufacture...Ch. 9 - Prob. 16PCh. 9 - Prob. 17PCh. 9 - Prob. 18PCh. 9 - Prob. 19PCh. 9 - Prob. 20PCh. 9 - Prob. 21PCh. 9 - Prob. 22PCh. 9 - Prob. 23PCh. 9 - Prob. 25PCh. 9 - Prob. 26PCh. 9 - Prob. 27PCh. 9 - Prob. 1CSCh. 9 - Prob. 2CSCh. 9 - Henry Coupe, the manager of a metropolitan branch...Ch. 9 - Prob. 4CSCh. 9 - Prob. 1.1VCCh. 9 - Prob. 1.2VCCh. 9 - Prob. 1.3VCCh. 9 - Prob. 1.4VCCh. 9 - Prob. 1.5VCCh. 9 - Prob. 1.6VCCh. 9 - Prob. 2.1VCCh. 9 - Prob. 2.2VCCh. 9 - Prob. 2.3VC
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- The Action Toy Company has decided to manufacture a new train set, the production of which is broken into six steps. The demand for the train is 4,800 units per 40- hourworkweek: a) Draw a precedence diagram of this operation. b) Given the demand, what is the cycle time for this operation? c) What is the theoretical minimum number of workstations? d) Assign tasks to workstations. e) How much total idle time is present each cycle? f) What is the efficiency of the assembly line with five stations? With six stations? TASK PERFORMANCE TIME (sec) PREDECESSORS A 20 None 30 15 15 A E 10 В. С 30 D, Earrow_forwarda. Draw a precedence diagram. b. What cycle time would provide the desired output? c. What is the maximum possible output of the line?arrow_forwardA company is setting up an assembly line to produce 90 units per hour. The table below identifies the work elements, times, and immediate predecessors. Work Element Time (Sec.) Immediate Predecessor(s) A 25 - B 18 A C 20 A D 5 B, C E 12 C F 8 E G 16 D, F H 12 G What cycle time is required to satisfy the required output? What is the theoretical minimum number of stations?arrow_forward
- As part of a major plant renovation project, the industrial engineering department has been askedto balance a revised assembly operation to achieve an output of 240 units per eight-hour day. Tasktimes and precedence relationships are as follows: [ please refer the attachment for addl details ] Do each of the following:a. Draw the precedence diagram.b. Determine the minimum cycle time, the maximum cycle time, and the calculated cycle time.c. Determine the minimum number of stations needed.d. Assign tasks to workstations on the basis of most following tasks. Use shortest processing timeas a tiebreaker. If ties still exist, assume indifference in choice.e. Compute the percentage of idle time for the assignment in part d.arrow_forwardThe City Commission of Nashville has decided to build a botanical garden and picnic area in the heart of the city for the recreation of its citizens. The precedence table for all the activities required to construct this area successfully is as follows: Code A B с D E F G H I Description Find location; determine resource requirements Requisition of lumber and sand Dig and grade Saw lumber into appropriate sizes Position lumber in correct locations Time (hrs) 20 60 100 30 20 10 20 10 30 Nail lumber together Put sand in and under the equipment Put dirt around the equipment Put grass all over the garden, landscape, paint Refer to the legend for the activity that corresponds to each code. Using the line drawing tool, draw a Gantt chart for activites E through I of the project. Immediate Predecessor(s) None A A B D, C E F F G, H A B C- D- E F G H- H 0 20 40 60 80 100 120 140 160 180 200 Q ✔arrow_forwardThe Action Toy Company has decided to manufacturea new train set, the production of which is broken intosix steps. The demand for the train is 4,800 units per 40-hourworkweek: a) Draw a precedence diagram of this operation.b) Given the demand, what is the cycle time for this operation?c) What is the theoretical minimum number of workstations?d) Assign tasks to workstations.e) How much total idle time is present each cycle?f) What is the efficiency of the assembly line with five stations?With six stations?arrow_forward
- Francis Johnson’s plant needs to design an efficient assembly line to make a new product. The assembly line needs to produce 15 units per hour, and there is room for only four workstations. The tasks and the order in which they must be performed are shown in the following table. Tasks cannot be split, and it would be too expensive to duplicate any task. TASK TASK TIME (MINUTES) IMMEDIATE PREDECESSOR A 1 — B 2 — C 3 — D 1 A, B, C E 3 C F 2 E G 3 E What is the workstation cycle time required to produce 15 units per hour? Note: Round your answer to 1 decimal place. Balance the line to use the fewest possible workstations to meet the cycle time found in part (b). Use whatever method you feel is appropriate. What is the efficiency of your line balance, assuming the line operates at the cycle time from part (b)? Note: Round your answer to 1 decimal place.arrow_forwardDraw a preceding diagram and assign task to stations in order of most following tasks firstarrow_forwardDefine Repetitive Processing: Product Layouts?arrow_forward
- The Action Toy Company has decided to manufacture a new train set, the production of which is broken into six steps. The demand for the train is 4,800 units per 40-hourworkweek: a) Draw a precedence diagram of this operation. b) Given the demand, what is the cycle time for this operation? c) What is the theoretical minimum number of workstations?arrow_forwardTo meet holiday demand, Alex's Pie Shop requires a production line that is capable of producing 50 pecan pies per week, while operating only 40 hours per week. There are only four steps required to produce a single pecan pie with respective processing times of 5 minutes, 5 minutes, 45 minutes, and 15 minutes. a. What should be the line's cycle time? b. What is the smallest number of workstations Alex could hope for in designing the line considering this cycle time? c. Suppose that Alex finds a solution that requires only four stations. What would be the efficiency of this line?arrow_forwardAn assembly line must be designed to produce 40 containers per hour. The following data give the necessary information Table 1 TASK IMMEDIATE PREDECESSOR TASK TIME (sec) A None 60 B A 12 C B 35 D A 55 E D 10 F E 50 G F, C 5 Draw the precedence diagram. ii. Compute the cycle time (in seconds) to achieve the desired output rate. iii. What is the theoretical minimum number of stations? iv. Assign the tasks to workstation? v. What is the efficiency of the line? PLEASE ANSWER THE FOLLOWING QUESTIONS: iV, & v.arrow_forward
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