Practical Operations Management
2nd Edition
ISBN: 9781939297136
Author: Simpson
Publisher: HERCHER PUBLISHING,INCORPORATED
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Question
Chapter 6, Problem 7P
Summary Introduction
Interpretation: The assembly line which has more workstations is to be determined.
Concept Introduction: An assembly line is a sequence of work in which an output is produced by adding inputs to semi-finished goods which moves from work station to another work station.
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A company is preparing a bid on a government contract for 40 units of a certain product. The operations manager estimates the assembly time required for the first two units to be 10.4 hours and 8.8 hours, respectively. Approximately how long will it take to produce the last ten units?
A paced assembly line has been devised to manufacture calculators, as the following data show:
LOADING...
Station
Work Element Assigned
Work Element Time (min)
S1
A
4.0
S2
D, E
0.9,
1.5
S3
C
5.0
S4
B, F, G
1.1,
1.0,
1.3
S5
H, I, J
1.1,
0.5,
1.8
S6
K
4.0
a. What is the maximum hourly output rate from this line?
(Hint:
The line can only go as fast as its slowest workstation.)
The maximum hourly output rate is
nothing
calculators per hour. (Enter your response as an integer.)
B. What cycle time corresponds to this maximum output rate?
C. If a worker is at each station and the line operates at this maximum output rate, how much idle time is lost during each? 10-hour shift?
D. What is the line's efficiency?
It is always possible to balance an assembly line so that it operates at 100% efficiency
true or false?
Chapter 6 Solutions
Practical Operations Management
Ch. 6 - Prob. 1DQCh. 6 - Prob. 2DQCh. 6 - Prob. 3DQCh. 6 - Prob. 4DQCh. 6 - Prob. 5DQCh. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5P
Ch. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Prob. 10PCh. 6 - Prob. 11PCh. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - Prob. 26PCh. 6 - Prob. 27PCh. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 1.1QCh. 6 - Prob. 1.2QCh. 6 - Prob. 1.3QCh. 6 - Prob. 1.4QCh. 6 - Prob. 2.1QCh. 6 - Prob. 2.2QCh. 6 - Prob. 2.3QCh. 6 - Prob. 3.1QCh. 6 - Prob. 3.2QCh. 6 - Prob. 3.3Q
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Similar questions
- You have just determined the actual number of workstations that will be used on an assembly line to be 6 using the assembly-line balancing procedure. The cycle time of the line is 5 minutes and the sum of all that tasks required on the line is 25 minutes. What is the resulting line's efficiency?arrow_forwardDr. Lori Baker, operations manager at Nesa Electronics, prides herself on excellent assembly line balancing. She has been told that the firm needs to complete 96 instruments per 24-hour day. The assembly-line tasks for the production of the instrument are: Task Time (minutes) Predecessors A 3 ---- B 6 ---- C 7 A D 5 A, B E 2 B F 4 C G 5 F H 7 D, E I 1 H J 6 E K 4 G, I, J Draw the precedence diagram If the daily production (24-hour) production rate is 96 units, what is the highest allowable cycle time? If the cycle time after allowances is given as 12 minutes, what is the daily (24-hour) production rate? With a 12-minute cycle time, what is the theoretical minimum number of stations with which the line can be balanced? Assign task to workstations. Use the following decision rules (heuristics): longest task first, break ties by assigning the task with the most followers. What are the efficiency and the balance delay of the assembly line? Show detil of…arrow_forwardYour process-oriented production layout manufactures a blade, critical part of your M601 engine, in a batch size of 5 pieces. There are four steps in the production process, each taking 2 minutes per piece. To lower the cycle time, you consider building a work-cell that would operate on a single-piece-flow principle. Technological process would not change.A) What would be a reduction in the cycle time (producing the first 5 units)?B) What would be a reduction in your Work-In-Progress inventory?arrow_forward
- A firm uses a serial assembly system and needs answers to the following:a. An output of 900 units per shift (7.5 hours) is desired for a new processing system. The system requires the product to pass through four stations where the work content at each station is 30 seconds. What is the required cycle time for such a system?b. How efficient is your system with the cycle time you calculated?c. Station 3 changes and now requires 45 seconds to complete. What will need to be done to meet demand (assume only 7.5 hours are available)? What is the efficiency of the new system?arrow_forwardSITUATION: A company is about to begin production of a new product. The manager of the department that will produce one of the components for the product wants to know how often the machine used to produce the item will be available for other work. The machine will produce the item at a rate of 200 units a day. Eighty units will be used daily in assembling the final product. Assembly will take place five days a week, 50 weeks a year. The manager estimates that it will take almost a full day to get the machine ready for a production run, at the cost of $300. Inventory holding costs will be $10 a year. QUESTION: Suppose the manager decides to increase the run size of the new product. How many additional units would be needed just to accommodate the other job? How much will that increase the total annual cost?arrow_forwardAn assembly line with 17 tasks is to be balanced. The longest task is 2.4 minutes, and the totaltime for all tasks is 18 minutes. The line will operate for 450 minutes per day.a. What are the minimum and maximum cycle times?arrow_forward
- An assembly line with 20 activities is to be balanced. The total amount of time to complete all 20 activities is 50 minutes. The longest activity takes 2.4 minutes and the shortest takes 0.9 minute. The line will operate for 300 minutes per day. What are the maximum and minimum cycle times? Round your answers to one decimal place. Maximum cycle time: minutes Minimum cycle time: minutes How much daily output will be achieved by each of those cycle times? Round your answers to the nearest whole number. Daily output achieved by maximum cycle time: units/day Daily output achieved by minimum cycle time: units/dayarrow_forwardIn a product-oriented layout, what is the process of deciding how to assign tasks to workstations? O work allocation O process balancing Otask allocation O station balancing O assembly-line balancingarrow_forwardWhen work stations are arranged to match the sequence of operations, a process layout is being used.; True or Falsearrow_forward
- The process design team at a manufacturer has broken an assembly process into eight basic steps, each with a required time and predecessor as shown in the table. They work an 8-hour day and want to produce at a rate of 360 units per day. What should their takt time be?arrow_forwardThe maker of the world-famous Chocolate Chip Cookies needs to design a product layout for a new product, Mint Chocolate Chip. The company plans to use this new production line eight hours a day in order to meet projected demand of 1,440 cases per day. The following table describes the tasks involved in the production of a case of Mint Chocolate Chip Cookies. 27 seconds 0.3333 seconds 18 seconds 14 seconds 56 seconds 20 secondsarrow_forwardWhat is an alternative process strategy to the assembly line that Wheeled Coach currently uses?arrow_forward
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