Operations Management: Sustainability and Supply Chain Management, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
12th Edition
ISBN: 9780134471815
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Chapter 17, Problem 14P
Summary Introduction
To determine: Reliability of each design.
Introduction: Reliability is the probability that a product can perform over specific period. It is the consistency of the product to perform in the same way for particular period of time.
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QUESTION 1(a)
I. Explain the concept of reliability and function of reliability engineering.
II. Give three (3) reasons for studying reliability
III. State three (3) major steps to take to accomplish reliability engineering
IV. What is product life cycle? State the stages involved in product life product.
Question 2:
I. What do you understand by six-sigma?
II. What are the functions of six-sigma in reliability engineering?
III. ICOV meant what?
Q ( s) A system must attain a reliability of not less than 0.90 for a 2 hour mission. The reliability is to be demonstrated at an 80% confidence level. In an actual test, the test was terminated at the 4th failure and 150 hours had been accumulated. Does this observation show that the required reliability has been attained ?
Chapter 17 Solutions
Operations Management: Sustainability and Supply Chain Management, Student Value Edition Plus MyLab Operations Management with Pearson eText -- Access Card Package (12th Edition)
Ch. 17 - Prob. 1DQCh. 17 - Prob. 2DQCh. 17 - Prob. 3DQCh. 17 - Prob. 4DQCh. 17 - Prob. 5DQCh. 17 - Prob. 6DQCh. 17 - Prob. 7DQCh. 17 - Prob. 8DQCh. 17 - Prob. 9DQCh. 17 - Prob. 10DQ
Ch. 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 - Prob. 10PCh. 17 - Prob. 11PCh. 17 - Prob. 12PCh. 17 - Prob. 13PCh. 17 - Prob. 14PCh. 17 - Prob. 15PCh. 17 - Prob. 18PCh. 17 - Prob. 19PCh. 17 - Prob. 20PCh. 17 - Prob. 21PCh. 17 - Prob. 1VCCh. 17 - Prob. 2VCCh. 17 - Prob. 3VC
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- Q2 While working in a critical organization. How you will ensure software safety? reliability? Also differentiate between system safety and systemarrow_forwardQ A circuit board has 4 components A B C & D having reliability of 0.990,0.995,0.890 and 0.980. what is the reliability of circuit board? Two alternatives suggested to increase system reliability are; a. Redesign, develop and test a new over designed configuration of component C at a cost of Rs 25000 which would result in a component reliability of 0.960 for component C. b. Modify the circuit board with a back up component C which is automatically placed into service if the primary component fails. This use of redundancy would cost Rs 10,000. Compute the system reliability of these two alternatives. Which one to choose?arrow_forwardExplain the key aspects of reliability.arrow_forward
- Define system reliability.arrow_forwardQuestion 2 a) Explain the different costs of quality and use Pizza Hut as an example. Comment on the statement "Run until it breaks". Describe the advantages and disadvantages of this. b) Explain two (2) ways improving reliability of a system. c)arrow_forwardWhat Is Quality Management System? Explain the types of QMS in organisations? (10 marks)arrow_forward
- QUESTION 2 a) Assess and discuss major expenses related to run to fail maintenance. In your opinion, should we deploy run to fail strategy on critical equipment b) In your own words, elaborate your understanding on the fundamental of effective maintenance. Give adequate arguments to support your pointsarrow_forwardDefine the Reliability management and differentiation ?arrow_forwardQuestion Provide two situations when new products do not need testing in the realistic market B Ff =而arrow_forward
- Briefly explain any ONE method of measuring reliability.arrow_forwardAssignment 1: Ethical Issue Evaluation Which design principle for crash decisions seems the most ethical and why: to minimize harm, protect the driver over the other drivers, treat everyone equally, hand back control to the driver, follow the law or something else?arrow_forwardQUESTION 15 Tradeoff analysis on different design concepts are performed and the data obtained are shown in Table Q15.1. The manufacturing cost of the design concept has been estimated and the reliability score of each design concepts has been ranked on a scale of 1-5. In both cases, low scores are considered good. The customer has agreed weighting factors of 55% for reliability and 45% for manufacturing cost. Table Q15.1: Trade-off data (low scores good) Design Concepts Reliability Score (15) Manufacturing Cost (Em) W B C Normalise the score by the maximum value, complete the trade-off and rank the options (1-best option) A D JA 4 410 VE B 3 507 C 2 483 D 1 438 E 2 457arrow_forward
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