Asked by Alayna Garcia on Jul 18, 2024
Verified
Eight low watt bulbs are tested for 600 hours each. One failed at 80 hours and a second failed at 510 hours; all others completed the test. Calculate FR(%), FR(N) and MTBF.
Low Watt Bulbs
Light bulbs that are designed to consume less electrical power, often leading to energy savings and reduced operational costs.
MTBF
Mean Time Between Failures; a reliability measure of the average time a product or system operates before failing.
- Determine the rate of failure, evaluate the mean time between failures (MTBF), and comprehend their relevance to the field of reliability engineering.
Verified Answer
AT
Andrew TallehJul 20, 2024
Final Answer :
FR(%) = 2/8 or 25%; operating hours = 6 × 600 + 80 + 510 = 4190; FR(N) = 2/4190 or .0005, and
MTBF = 4190 hours
MTBF = 4190 hours
Learning Objectives
- Determine the rate of failure, evaluate the mean time between failures (MTBF), and comprehend their relevance to the field of reliability engineering.
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