Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Chapter 9, Problem 19P
a)
Summary Introduction
To determine: The number of workstations when there are 300 minutes available each day.
b)
Summary Introduction
To determine: The efficiency.
Introduction:
Efficiency:
Efficiency is the measure of what is actually produced as opposed to what can be theoretically produced with the same amount of resources.
c)
Summary Introduction
To determine: The number of workstations when there are 400 minutes available each day.
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SITUATION: 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?
Explain why process selection is essential in system design.
The Mach 10 is a one-person sailboat manufactured by Creative Leisure. The final assembly plant is in Cupertino, California. The assembly area is available for production of theMach 10 for 200 minutes per day. (The rest of the time it is busy making other products.) The daily demand is 60 boats. Given the information in the table on the next page,a) Draw the precedence diagram and assign tasks using five workstations .b) What is the efficiency of the assembly line, using your answer to (a)?c) What is the theoretical minimum number of workstations?d) What is the idle time per boat produced?
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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- given information: which step is in bottleneck=30 min for tan leather 60/30=2 briefcases per hr are processed at the bottleneck workstation per hour throughput time of the overall process Throughput = 75 minutes PLEASE answer the following 3 questions: If the manufacturing facility operates 8 hours per day, 250 days a year, what is the annual capacity of this manufacturing process. Assume the company decides to hire additional workers in order to duplicate the bottleneck step identified in part a so that there are 3 of these workstations instead of 1. Redraw the diagram showing the flow of the revised process. Answer parts a through d again based on the new process created in part e?arrow_forwardCalifornia Gardens, Inc., prewashes, shreds, and distributes a variety of salad mixes in 2-pound bags. Doug Voss, Operations VP, is considering a new Hi-Speed shredder to replace the old machine, referred to in the shop as "Clunker." Hi-Speed will have a fixed cost of $87,000 per month and a variable cost of $1.20 per bag. Clunker has a fixed cost of only $31,000 per month, but a variable cost of $1.70. Selling price is $2.40 per bag. Part 2 a) What is the crossover point in units (point of indifference) for the processes? The crossover point is units. (Round your response to the nearest whole number.)arrow_forwardCalifornia Gardens, Inc., prewashes, shreds, and distributes a variety of salad mixes in 2-pound bags. Doug Voss, Operations VP, is considering a new Hi-Speed shredder to replace the old machine, referred to in the shop as "Clunker." Hi-Speed will have a fixed cost of $87,000 per month and a variable cost of $1.20 per bag. Clunker has a fixed cost of only $31,000 per month, but a variable cost of $1.70. Selling price is $2.40 per bag. Part 2 a) What is the crossover point in units (point of indifference) for the processes? The crossover point is 112000112000 units. (Round your response to the nearest whole number.) Part 3 b) What is the monthly profit or loss if the company changes to the Hi-Speed shredder and sells 90,000 bags per month? The monthly profit or loss if the company changes to the Hi-Speed shredder and sells 90,000 bags per month is $enter your response here. (Round your response to the nearest dollar and include a minus sign if necessary.)arrow_forward
- An assembly line with 17 tasks is to be balanced. The longest task is 2.2 minutes and the total time for all tasks is 19 minutes. The line will operate for 460 minutes per day. A) What is the minimum number of workstations needed if the output rate is to be 186 units per day? B)- What cycle time will provide an output rate of 142 units per day? C) What output will result if the cycle time is (I) 9 minutes and (II) 14 minutes?arrow_forwardANSWER ONLY 9.19arrow_forwardWhat is the process capacity for each machine-operator combination?arrow_forward
- No written by hand solution and no imagearrow_forwardSuppose the times for the individual operations for the in-line skate assembly are as follows: Task Description Time (sec) 1 Assemble wheels, bearings, and axle hardware 11 2 Assemble brake housing and pad 8 3 Complete wheel assembly 20 4 Inspect wheel assembly 13 5 Assemble boot 18 6 Join boot and wheel subassemblies 7 7 Add line and final assembly 10 8 Perform final inspection 10 Consider the production line achieving an output rate of 180 per hour below. Using the proposed design, calculate the total time and idle time for each workstation. If your answer is zero, enter "0". Round your answers to the nearest whole number. Station Tasks Total Time, seconds Idle Time, seconds A 1 and 2 B 3 C 5 D 4 and 6 E 7 and 8 Total What is the assembly line efficiency? Round your answer to one decimal place. %arrow_forwardA small firm intends to increase the capacity of a bottleneck operation by adding a new machine. Two alternatives, A and B, have been identified, and the associated costs and revenues have been estimated. Annual fixed costs would be $36,000 for A and $31,000 for B; variable costs per unit would be $7 for A and $11 for B; and revenue per unit would be $17.arrow_forward
- Please help me solve this.arrow_forwardSuppose Benihana increases its restaurant seating capacity by 10% and also decreases the length of stay for each customer by 20%. As a percentage, how many more customers can it serve per hour with these changes? Please provide all necessary steps too. Thanksarrow_forwardA small firm intends to increase the capacity of a bottleneck operation by adding a new machine.Two alternatives, A and B, have been identified, and the associated costs and revenues have beenestimated. Annual fixed costs would be $40,000 for A and $30,000 for B; variable costs per unitwould be $10 for A and $11 for B; and revenue per unit would be $15.c. If expected annual demand is 12,000 units, which alternative would yield the higher profit?arrow_forward
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Process selection and facility layout; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=wjxS79880MM;License: Standard YouTube License, CC-BY