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LOG104 Reliability, Availability, and Maintainability (RAM) : LESSON 1 correctly answered to pass $12.99   Add to cart

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LOG104 Reliability, Availability, and Maintainability (RAM) : LESSON 1 correctly answered to pass

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LOG104 Reliability, Availability, and Maintainability (RAM) : LESSON 1 correctly answered to pass

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  • August 5, 2024
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  • 2024/2025
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  • LOG104
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Sakayobako30
LOG104 Reliability, Availability, and
Maintainability (RAM) : LESSON 1
In addition to probability, which of the following are also elements in the measurement of reliability?



Select the three alternatives that apply. - correct answer ✔✔1.** Performance



2.** Time



3.*** Operating Conditions2



Using the data from the truck example, calculate the generators' MTBR (for-cause). After two years, the
fleet had accumulated 1,000,000 operating hours. There were 100 incidents in which a truck broke down
due to generator failure. Overall, there were 1,200 "maintenance events" involving generators, as
follows:

100 on-equipment repairs (by turning wrenches, screwdrivers, etc.)

200 removals to facilitate other maintenance (50 of these resulted in damage to the generators).

900 removals for-cause that were forwarded to the depot for repair, where 600 were identified as design
or manufacturing related problems - correct answer ✔✔1,111 hours



Which of the following address supply and maintenance issues affecting a system? - correct answer
✔✔Mean Time Between Demand (MTBD)



Mean Time Between Failure (MTBF)Mean Time Between Removal (MTBR)Mean Time Between
Unscheduled Maintenance (MTBUM)



Which of the following is a brief definition of maintainability? - correct answer ✔✔The relative ease and
economy of time and resources with which an item can be retained or restored to a specific condition.



The table shows the Mean Miles Between Failure for the two cars. Which car is more reliable?

, Categories Hard Top Convertible



Miles 130,000 85,000



Number of Failures 3 7



Mean Miles Between Failures 43,333 miles 12,143 miles - correct answer ✔✔Hard Top



Based on the data, which car takes less time to repair?



Categories Hard Top Convertible



Number of Failures 3 7



Total Repair Time 30 hours 42 hours



MeanTime To Repair 10 hours 6 hours - correct answer ✔✔Convertible



Which of the following are reliability factors? Select the two alternative that apply. - correct answer
✔✔1.*** The number of miles a tire can accumulate before it wears out



2.***** The number of hours a computer operates before it fails



How is availability defined? - correct answer ✔✔The degree to which an item is operational at the start
of a mission when the mission is called for at an unknown time



Which of the following are the sub-elements of availability? Select the three alternatives that apply. -
correct answer ✔✔1.*** ~ Achieved Availability



2. *** ~ Inherent Availability

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