OPERATIONS MANAGEMENT
2nd Edition
ISBN: 9781260238877
Author: CACHON
Publisher: RENT MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
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 113 Jobs. Each Job takes about 4 minutes on the
machine, 2 minutes of which is processing time and 2 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
equipment is idle. What is the OEE of the equipment?
(Round your percentage answer to 1 decimal place.)
What is the OEE of the equipment?
0.2 percent
Chapter 7 Solutions
OPERATIONS 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
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- A copy machine is available 24 hours a day. On a typical day, the machine produces 100 jobs. Each job takes about 3 minutes on the machine, 2 minutes of which is processing time and 1 minute is setup time (logging in, defining the job). About 20 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 equipment is idle. What is the OEE of the equipment? answer:______percentarrow_forwardWhich of the following statements will hold good in the case of a system with uncertainty in demand for service and in service times? When the utilization of resources fall it is an indication of greater efficiency of the service It is a good practice to plan for resource utilization levels more than 85% Cost of waiting to get serviced is directly proportional to the cost of providing the service None of the abovearrow_forwardPerformance Evaluation and Risk Aversion Jill Lewis is the office manager of PureBreds Inc.Her office has 30 employees whose collective job is to process applications by dog owners whowant to register their pets with the firm. There is never a shortage of applications waiting to be processed, but random events beyond Lewis’s control (e.g., employees out sick) cause fluctuations inthe number of applications that her office can process. Jill is aware that it is important that the applications be processed quickly and accurately. Alex Zale, the district manager to whom Jill reports,bases his evaluation of Jill on the number of applications that are processed.Required1. If Jill is risk averse, how should Alex compensate her? Why?a. Flat salary.b. Straight commission based on the number of applications processed.c. Flat salary with a bonus based on the number of applications processed.d. Flat salary with a bonus based on the firm’s earnings.2. What is a disadvantage of an evaluation method…arrow_forward
- The following formula is used to calculate the number of bins for a given part needed for a single Kanban loop between two cells in a production system: N = D * (Tw + Tp) * (1+r) / c Where: N = Total number of bins for a given part D = Planned usage rate for the part (parts per day) Tw = Average waiting time for replenishment of parts (fraction of a day) Tp = Average production time for a container of parts (fraction of a day) c = Capacity of the standard container (number of parts) r = Risk factor set by management (expressed as a decimal fraction) At Company A, the boxing station at the end of an electric switch production line has a planned daily usage rate of 150,000 switches per day and receives the switches to be boxed from the preceding station in containers which hold 3% of the day’s demand. It takes 90 minutes for the preceding station to fill a bin and 9 minutes for the filled bin to be delivered to the boxing station. How many such bins are needed for the Kanban loop to work…arrow_forwardSuppose that 2000 students enter (and later leave) a classroom building over the 20 hours in which it is open. On average, there are 200 students in the building. Assuming the classroom building is operating in steady-state, which of the following statements are true? (Please tell me why C could be a right answer) A. The number of students in the building is 100, on average. B. Students spend an average of 120 minutes in the building. C. The arrival rate at the building is 83.33 students per hour. D. The building must have at least 5 classrooms. E. None of the answers are correct.arrow_forwardA Printed Circuit Board (PCB) machine installs integrated circuits onto a board. Before starting to produce a board, the PCB machine requires a 20-minute setup. Once in production, the PCB machine requires only 0.15 minute per board. Assume there is ample demand. Currently, the PCB machine produces 500 boards between setups. Given this operating process, what is the utilization of the PCB machine? answer:________percentarrow_forward
- A heat tempering machine tempers a surgical instrument in exactly 2 minutes. Surgical instruments arrive at the rate of 20 units per hour. The machine has a capacity to temper only 1 instrument at a time and there is not setup required between two tempering processes. Find the average number of surgical waiting to be tempered including the one that is going under treatment process. (A)0.33 (B) 1.33 (C) 2.33 (D) 3.33arrow_forwardSolving the symptoms of a problem will result in solving the problem itself. * O False O Truearrow_forwardPulling the andon cord can cause a loss of output. In TPS, an employee should pull theandon cord:a. whenever a problem occurs.b. whenever the employee sees the cost of stopping the line as lower than the costs of notstopping it.c. whenever he or she needs to go on a break.d. at no time.arrow_forward
- A Printed Circuit Board (PCB) machine installs integrated circuits onto a board. Before starting to produce a board, the PCB machine requires a 20-minute setup. Once in production, the PCB machine requires only 0.15 minute per board. Assume there is ample demand. 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? answer:_________batch sizearrow_forwardJanson's Department Store in Stark, Ohio, maintains a successful catalog sales department in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the catalog department are answered automatically by a recording machine and asked to wait. As soon as the clerk is free, the party who has waited the longest is transferred and serviced first. Calls come in at a rate of about 10 per hour. The clerk can take an order in an average of 4.0 minutes. Calls tend to follow a Poisson distribution, and service times tend to be negative exponential. The cost of the clerk is $8 per hour, but because of lost goodwill and sales, Janson's loses about $25 per hour of customer time spent waiting for the clerk to take an order. a) The average time that catalog customers must wait before their calls are transferred to the order clerk = minutes (round your response to two decimal places). b) The average number of callers waiting to place an…arrow_forwardJanson's Department Store in Stark, Ohio, maintains a successful catalog sales department in which a clerk takes orders by telephone. If the clerk is occupied on one line, incoming phone calls to the catalog department are answered automatically by a recording machine and asked to wait. As soon as the clerk is free, the party who has waited the longest is transferred and serviced first. Calls come in at a rate of about 10 per hour. The clerk can take an order in an average of 3.0 minutes. Calls tend to follow a Poisson distribution, and service times tend to be negative exponential. The cost of the clerk is $12 per hour, but because of lost goodwill and sales, Janson's loses about $25 per hour of customer time spent waiting for the clerk to take an order. a) The average time that catalog customers must wait before their calls are transferred to the order clerk = minutes (round your response to two decimal places). b) The average number of callers waiting to place an…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Practical Management ScienceOperations ManagementISBN:9781337406659Author:WINSTON, Wayne L.Publisher:Cengage,
Practical Management Science
Operations Management
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:Cengage,