What is the reliability of the power switching system schematic on the left after 30,000 hours ? The electric utility primary power system (A) has a failure rate of 0.00001 failure/hour.
The motor generator backup system (B) has a failure rate of 0.0007 failure/hour. The standby system has an imperfect switch with 0.90 reliability per operation.
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For the exponential model, the reliability at mean time to failure is about:
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The reliability goal for a complex system is 0.995. The predicted reliability for the system is 0.999 when one of the subsystems is functioning and 0.90 when that subsystem is not functioning. What is the minimum reliability for this subsystem to meet the system reliability goal?
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According to the Reliability Analysis Center, which of the following design objectives is NOT supported by reliability and maintainability contributing tasks?
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An aggregate preventive maintenance program can greatly increase the overall availability of a system because of the Response: