2. A product design engineer must decide if a redundant component is cost-justified in a certainsystem. The system in question has a critical component with a probability of 0.98 of operating.System failure would involve a cost of $20000. For a cost of $100 a switch could be added thatwould automatically transfer the system to the backup in the event of failure. Should the backupbe added if the backup probability is also 0.98?

Product designing is the process where the company has to create or develop a new product or change…

Answered: 2. A product design engineer must…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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A mechanical engineer must recommend an A/C system to a commercial building owner. The owner uses and MARR of 6%, but is not sure how long he will own the building. A conventional split system has a design life of 10 years, a cost of $52,000, and annual operating costs of $15,000. A chilled water system has an initial cost of $68,000 and annual operating costs of $14,000. Assuming each unit has no salvage value and will be identically replaced for the life of the building, determine how long the chilled water system needs to last for it to be the best choice (i.e. determine the breakeven useful life for the chilled water system). Express your answer in years to the nearest whole year.
If the probability of a "super-evenl'' increases, does the"unique-event" risk increase or decrease in importance?Why?
Assume that the system still costs $600 to fix every time it breaks down, and you are going to run the system 1000 times. You are considering improving your system. You have contacted a backup supplier of component 1. She tells you that the backup for component 1 will cost $50,000. What would the minimum reliability of the backup need to be to make the purchase worthwhile? (keep 4 decimals for intermediate calculations)
A famous model is approached by captors. The captors make it clear they are going to kidnap the model and hold her for ransom. The ransom money is only paid if the captors give back the model safe and sound. The model can either run or submit to the captors
Rick Wing, salesperson for Wave Soldering Systems, Inc. (WSSI), has provided you with a proposal for improving 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, but the hot-air temperature control lacks reliability. According to Wing, engineers at WSSI have improved the reliability of the critical temperature controls. The new system still has the four sensitive integrated circuits controlling the temperature, but the new machine has a backup for each. The four integrated circuits have reliabilities of 0.82, 0.84, 0.86, and 0.88. The four backup circuits all have a reliability of 0.82. a) The overall reliability of the new temperature controller =% (enter your response as a percentage rounded to two decimal places). 1. If you pay a premium, Wing says he can improve all four of the backup units to 0.91. the overall reliability of the new temperature controller with the…
The risks that the consequences of them are acceptable and no extra costs should be incurred to reduce hazard probability are categorized as: Select one: a. Intolerable b. Intolerable, Acceptable, and As low as reasonably practical (ALARP) c. As low as reasonably practical(ALARP) d. Acceptable
The availability of a system is affected when the mean time between failures (MTTR) is approaching zero. What do you think about this situation? Is it anything that can be correctly described?
Pls help ASAP
Tires that fail in service result in significantly higher replacement costs than those replaced before failure. For an 18-wheeler (that is, a truck with 18 tires), failure on the road costs $300, whereas all 18 tires can be replace prior to failure at a cost of $75 per tire. The probability of failure is given in the following table. Number of Miles 0-5,000 5,001-10,000 10,001-15,000 15,001-20,000 20,001-25,000 Probability of Failure .05 .15 .20 .40 .20 If tires are replaced at multiples of 5,000 miles only, what is the optimal age replacement policy?
The following is an excerpt from a conversation between two sales clerks, Tracy Rawlin and Jeff Weimer. Both Tracy and Jeff are employed by Magnum Electronics, a locally owned and operated electronics retail store. Suggest appropriate control procedures that would have prevented or detected the theft of cash.
How does system management help in minimizing downtime and enhancing system reliability?
snip

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