Principles Of Operations Management
11th Edition
ISBN: 9780135173930
Author: RENDER, Barry, HEIZER, Jay, Munson, Chuck
Publisher: Pearson,
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Chapter 17, Problem 14P
Summary Introduction
To determine: The reliability of each design.
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As VP for operations at Mendez-Pifiero Engineering,you must decide which product design, A or B, has the higher reliability.B is designed with backup units for components R3 and R4.What is the reliability of each design?
A product is composed of a series connection of four components with the following reliabilities. What is the reliability of the system?
Component
1
2
3
4
Reliability
.90
.95
.97
.88
A system has four components in a series. What is the reliability of the system?
Component
1
2
3
4
Reliability
.90
.95
.90
.99
As VP for operations at Méndez-Piñero Engineering,
you must decide which product design, A or B, has the higher reli-ability. B is designed with backup units for components R3 and R4 .
What is the reliability of each design? PX
0.99 0.95 0.998 0.995Product Design AR1 R2 R3 R4
0.99 0.95 0.985 0.990.95 0.99
Chapter 17 Solutions
Principles Of Operations Management
Ch. 17 - Prob. 1EDCh. 17 - Prob. 1DQCh. 17 - Prob. 2DQCh. 17 - Prob. 3DQCh. 17 - Prob. 4DQCh. 17 - What is the trade-off between operator-performed...Ch. 17 - Prob. 6DQCh. 17 - Prob. 7DQCh. 17 - Prob. 8DQCh. 17 - Prob. 9DQ
Ch. 17 - Prob. 10DQCh. 17 - Prob. 1PCh. 17 - Prob. 2PCh. 17 - Prob. 3PCh. 17 - Prob. 4PCh. 17 - Prob. 5PCh. 17 - Prob. 6PCh. 17 - Prob. 7PCh. 17 - Prob. 8PCh. 17 - Prob. 9PCh. 17 - What is the reliability of the system shown?Ch. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Rick Wing, salesperson for Wave Soldering Systems,...Ch. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 16PCh. 17 - Prob. 17PCh. 17 - What are the expected number of yearly breakdowns...Ch. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - Prob. 21PCh. 17 - Prob. 22PCh. 17 - Prob. 1VCCh. 17 - Prob. 2VCCh. 17 - Prob. 3VC
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- A Web server has five major components that must all function in order for it to operate as intended. Assuming that each component of the system has the same reliability, what is the minimum reliability each one must have in order for the overall system to have a reliability of .98?arrow_forwardA system consisting of two identical components A& B. (a) Under what conditions does the system fail? (b) Ifthe reliability (i.e. the ability of the system to perform itsintended function satisfactorily) of components A & B are90% and 80%, respectively, under what conditions does thesystem fail?arrow_forwardConsider a product with three components in series, with reliabilities of 0.90, 0.80, and 0.99 for components A, B, and C, respectively. Furthermore, component B uses a backup that also has a reliability of 0.80. What is the reliability of the system?arrow_forward
- An engine system consists of three main components in a series, all having the same reliability. Determine the level of reliability required for each of the components if the engine is to have a reliability of 0.998.arrow_forwardRick Wing, salesperson for Wave SolderingSystems, Inc. (WSSI), has provided you with a proposal forimproving the temperature control on your present machine.The machine uses a hot-air knife to cleanly remove excess solder from printed circuit boards; this is a great concept, butthe hot-air temperature control lacks reliability. According toWing, engineers at WSSI have improved the reliability of thecritical temperature controls. The new system still has the foursensitive integrated circuits controlling the temperature, butthe new machine has a backup for each. The four integratedcircuits have reliabilities of .90, .92, .94, and .96. The fourbackup circuits all have a reliability of .90.a) What is the reliability of the new temperature controller?b) If you pay a premium, Wing says he can improve all fourof the backup units to .93. What is the reliability of thisoption?arrow_forwardA serial system is assembled in house from 20 parts. To be successful in the marketplace the system has to have three sigma reliability. What level of reliability of each part is necessary to achieve that level of the overall performance?arrow_forward
- The ABC Bank processes loan applications through 3 clerks set up in series, with reliabilities of 0.90, 0.80, and 0.99. a. The bank manager decided to provide redundancy to the two least reliable clerks. Reliability measures of the redundants are equal to the corresponding primary clerk. What is the new system reliability? Show illustration and complete solution. b. What will be the system reliability if the bank replaces the clerk with reliability measure of 0.80 and his redundant, with a 90% reliable clerk? Show illustration and complete solution.arrow_forwardExplain how design for supportability relates to the following: (i) design for reliability (ii) design for maintainability iii). design for human factorsarrow_forwardWhen a system reliability target is not met, what must be done? Discuss reliability block diagramarrow_forward
- A University Web server has 5 main components, each with the same reliability. All 5 components must work for the server to function as intended. If the University wants to have a 81 percent reliability, what must be the reliability of each of the components?arrow_forwardA new aircraft control system is being designed that must be 98.5% reliable. This system consists of four components in series. If all four of the components are to have the same level of reliability, then the level of reliability required for each component = 99.50 percentage rounded to two decimal places). % (enter your response as aarrow_forwardAn office security system at PAC Ltd has two component parts, both of which must work for the system to function. Part 1 has a reliability of 80 percent, and part 2 has a reliability of 98 percent. Compute the reliability of the system.arrow_forward
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