OPERATION MANAGEMENT
2nd Edition
ISBN: 9781260242423
Author: CACHON
Publisher: MCG
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Question
Chapter 7, Problem 4PA
a)
Summary Introduction
To determine: The capacity of the machine in boards per minute.
b)
Summary Introduction
To determine: The utilization of the machine.
c)
Summary Introduction
To determine: The average inventory of boards at the machine.
d)
Summary Introduction
To determine: The smallest batch size that does not constrain the flow rate of the process.
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A Printed Circuit Board (PCB) machine installs integrated circuits onto a board. Before starting to produce a board, the PCB machine requires a 16-minute setup. Once in production, the PCB machine requires only 0.19 minute per board.
a. Currently, the PCB machine produces 525 boards between setups. Given this operating process, what is the capacity of the PCB machine (in boards per min)?
b. Currently, the PCB machine produces 525 boards between setups. Given this operating process, what is the utilization of the PCB machine?
c. Say the PCB machine produces 400 boards s between setups and demand is 2 boards per minute. Given the operating process, what is the avergae inventory of boards anf the PCB machine?
d. Demand for boards occurs at the rate of 2 boards per minute. What is the smallest batch size such that the PCB machine does not constrain the flow rate through the process?
A graphics reproduction i rm has four units of equipment that are automatic but occasionallybecome inoperative because of the need for supplies, maintenance, or repair. Eachunit requires service roughly twice each hour, or, more precisely, each unit of equipmentruns an average of 30 minutes before needing service. Service times vary widely, rangingfrom a simple service (such as pressing a restart switch or repositioning paper) to moreinvolved equipment disassembly. The average service time, however, is i ve minutes.Equipment downtime results in a loss of $20 per hour. The one equipment attendant ispaid $6 per hour.Using i nite queuing analysis, answer the following questions:a. What is the average number of units in line?b. What is the average number of units still in operation?c. What is the average number of units being serviced?d. The i rm is considering adding another attendant at the same $6 rate. Should the i rmdo it?
A copy machine is available 24 hours a day. On a typical day, the machine produces 80 jobs. Each job takes about 2 minutes on the
machine, 1 minutes of which is processing time and 1 minute is setup time (logging in, defining the job). About 16 Percent of the jobs
need to be reworked, in which case the setup time and the processing time have to be repeated. The remainder of the time, the
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(Round your percentage answer to 1 decimal place.)
What is the OEE of the equipment?
percent
Chapter 7 Solutions
OPERATION MANAGEMENT
Ch. 7 - Prob. 1CQCh. 7 - Prob. 2CQCh. 7 - Prob. 3CQCh. 7 - Prob. 4CQCh. 7 - Prob. 5CQCh. 7 - Prob. 6CQCh. 7 - Prob. 7CQCh. 7 - Prob. 8CQCh. 7 - Prob. 9CQCh. 7 - Prob. 10CQ
Ch. 7 - Prob. 11CQCh. 7 - Prob. 12CQCh. 7 - Prob. 13CQCh. 7 - Prob. 14CQCh. 7 - Prob. 1PACh. 7 - Prob. 2PACh. 7 - Prob. 3PACh. 7 - Prob. 4PACh. 7 - Prob. 5PACh. 7 - Sarahs Organic Soap Company makes four kinds of...Ch. 7 - Prob. 7PACh. 7 - Prob. 8PACh. 7 - Bruno Fruscalzo decided to set up a small...Ch. 7 - Prob. 10PACh. 7 - Prob. 11PACh. 7 - Prob. 1CCh. 7 - Prob. 2CCh. 7 - Prob. 3CCh. 7 - Prob. 4C
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