The fire department has a number of failures with its oxygen masks and is evaluating the possibility of outsourcingpreventive maintenance to the manufacturer. Because of the risk associated with a failure, the cost of each failure isestimated at $2,200. The current maintenance policy (with station employees performing maintenance) has yieldedthe following history:Number of breakdowns01Number of years in which breakdowns occurred 3 3453 10 1b) The cost of the current maintenance policy =2 31a) The expected number of breakdowns per year with station employees performing maintenance = breakdownsper year (round your response to two decimal places).

Answered: The fire department has a number of…

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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The fire department has a number of failures withits oxygen masks and is evaluating the possibility of outsourcingpreventive maintenance to the manufacturer. Because of the riskassociated with a failure, the cost of each failure is estimated at$2,000. The current maintenance policy (with station employeesperforming maintenance) has yielded the following history:Number of breakdowns 012345Number of years in whichbreakdowns occurred 431550This manufacturer will guarantee repairs on any and all failures aspart of a service contract. The cost of this service is $5,000 per year. a) What is the expected number of breakdowns per year with sta-tion employees performing maintenance? b) What is the cost of the current maintenance policy?c) What is the more economical policy?
(In Urban Air Mobility) Please find out whether FAA have relevant safety target values according to Indicative requirements for operational security in UAM scenarios(Note: the above research should find more authoritative data, and attach links to relevant documents). (Hint:[Not the aircraft's own flight safety (10^-6, etc.), but the safety indicator of the aircraft running the overall] The focus is on the operation of the general aircraft!],like The accident rate of UAM specified in the safety level of navigation or the safety level of civil aviation transportation, etc.) Please provide some authoritative data with some links of these resources.I would be very, very,very,very grateful!
Determine how TCAS have played a role in a flight safety without any support from air traffic controllers in the ground stations by analyzing the function of its components
Differentiate between a hazard, a risk, an accident and a near miss.Name at least five hazards that you can identify in the Mechanical Workshop of the Mechanical Engineering Department, Faculty of Engineering, SUIT.What sort of safety training, first-aid requirement, and emergency procedures would you recommend in order to ensure the safety of students, faculty, staff and university assets?
Classify the following risks into variation, foreseen uncertainty, unforeseen uncertainty, and chaos:a. A hurricane on the U.S. East Coast floods a regional warehouse destroying alarge amount of stock
The fire department has a number of failures with its oxygen masks and is evaluating the possibility of outsourcing preventive maintenance to the manufacturer. Because of the risk associated with a failure, the cost of each failure is estimated at $2,200. The current maintenance policy (with station employees performing maintenance) has yielded the following history: Number of breakdowns 0 1 2 3 4 5 Number of years in which breakdowns occurred 5 3 1 4 6 2 a) The expected number of breakdowns per year with station employees performing maintenance = breakdowns per year (round your response to two decimal places).
2. Suppose that the cumulative distribution function of the lifetime of a piece of operating equipment is given by F(t) = 1 – e-0.61 – 0.6te¬0.61 where t is measured in years of continuous operation. a. Determine the reliability function. b. Determine the failure rate function. c. What is the probability that this piece of equipment fails in the first year of operation? d. What is the probability that this piece of equipment fails in the fifth year of operation? e. What proportion of the equipment surviving four years fails in the fifth year? (Calculate without using the failure rate function.) f. Does r(4) closely approximate the answer to part (e)? Why or why not? g. What proportion of the equipment surviving four years fails in the first month of the fifth year? (Calculate using the failure rate function.)
The number of yearly breakdowns for the power generator observed over the past 20 years at Orlando Utilities is presented in the following data: Number of breakdowns 0 1 2 3 4 5 6 Number of years in which breakdowns occurred 3 3 5 3 4 1 1 For Orlando Utilities, the expected number of breakdowns = (round your response to two decimal places).
a bread manufacturer relies on maintenance employees to keep its rather quite old production equipment for their operation. Whenever the equipment breaks down, the maintenance team is able to repair the equipment quickly. However, they are less effective at avoiding these breakdowns and cannot predict when the equipment will break down. The maintenance group has modified the equipment over the years and, in any event, the manufacturer of the equipment is no longer in business. The maintenance employees teach each other how to repair the equipment, but have refused to document any of this information (saying that it is too difficult to document these details). The company owner has thought about firing the maintenance staff unless they document the maintenance procedures, but realizes that there is no one else who can repair the equipment. Discuss or explain the sources or types of power and contingencies (moderator) of power among the maintenance employees in this situation.
The number of yearly breakdowns for the power generator observed over the past 20 years at Orlando Utilities is presented in the following data: Number of breakdowns 0 1 2 3 4 5 6 Number of years in which breakdowns occurred 2 2 5 4 5 2 0 For Orlando Utilities, the expected number of breakdowns = (round your response to two decimal places).
A 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?
Reliability prediction is a design-assist process by which the reliability characteristics of a system are obtained, by calculating the anticipated system RAMS (Reliability, Availability, Maintainability and Safety-Integrity) from assumed component failure rates. Discuss the importance of reliability prediction and the factors that affect the reliability performance of electronics components.

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